22nd Canadian Hydrotechnical Conference 22e Conférence canadienne sur l’hydrotechnique Water for Sustainable Development: Coping with Climate and Environmental Changes L’eau pour le développement durable : adaptation aux changements du climat et de l’environnement Fairmont The Queen Elizabeth | Fairmont Le Reine Elizabeth April 29 - May 2 | 29 avril - 2 mai 2015 Final Program Credit : © Tourisme Montréal, Stéphan Poulin 22nd Canadian Hydrotechnical Conference 22e Conférence canadienne sur l’hydrotechnique Water for Sustainable Development: Coping with Climate and Environmental Changes L’eau pour le développement durable : adaptation aux changements du climat et de l’environnement Fairmont The Queen Elizabeth | Fairmont Le Reine Elizabeth April 29 - May 2 | 29 avril - 2 mai 2015 DAY 3 - MAY 1 - FRIDAY DAY 2 - APRIL 30 - THURSDAY Welcome and Opening Remarks 9:00 - 9:30 Keynote Lectures 09:30 -11:00 Keynote Lecture 1: Water Security - Priority Needs in a Climate Chanigng World - Ed McBean Keynote Lecture 2: Coupled Modeling of Atmospheric-Hydrologic Processes at Watershed Scale with Application to Unfgauged & Sparsely-gauged Watersheds - M. Levent Kavvas Keynote Lectures 8:30 - 10:00 Keynote Lecture 3: Environmental Hydraulics of Chlorine Disinfection for the Hong Kong Harbour Area Treatment Scheme - Joseph Hun-wei LEE Keynote Lecture 4: Challenges of the Water Information System: needs and opportunities - Philippe Gourbesville 10:00 - 10:20 Short Course: 08:30-17:00 Coffee Break 11:00 -11:15 Integrated 1D-2D Flood Modeling for Session 1A: Urban and Rural HYDROLOGIC EXTREMES AND Watersheds with CLIMATE CHANGE 1 EPA SWMM5 and PCSWMM Computer Hydraulics International Session 2A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 2 CSCE Hydrotechnical Award Presentations Parellel Sessions 11:15 - 12:35 Session 1B: ADAPTIVE WATER MANAGEMENT IN A CHANGING CLIMATE Session 1C: COASTAL HYDRAULICS Coffee Break/Poster Sessions 10:20 -10:40 Session 1D: TURBULENT MIXING & ENTRAINMENT Lunch 12:35 - 13:45 Parellel Sessions 10:40 - 12:20 Session 4A: CLIMATE CHANGE IMPACTS AND ADAPTATION 2 Session 4B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 1 Session 4C: URBAN FLOOD RISK MANAGEMENT AND ADAPTATION Session 4D: DECISION SUPPORT SYSTEMS Parellel Sessions 13:45 - 15:45 Session 2B: Session 2C: SOME EMERGING FLOODNET - A STRATEGIC TECHNOLOGIES IN RESEARCH NETWORK ON HYDROLOGIC MODELING FLOODS IN CANADA Parellel Sessions 13:30 - 15:10 Session 5A: STRATEGIES FOR EFFICIENT WATER RESOURCES PLANNING Session 5B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 2 Session 5C: DAM BREACH AND LANDSLIDE Session 3D: FLOOD HYDRAULICS AND HYDROLOGY Session 6A: Special Session by the National Research Council of Canada: Kenue Joint Industry Partnership kick-off Meeting HYDRAULIC STRUCTURE MODELING AND DESIGN (BLUE and GREEN Kenue technologies for Hydraulics and Hydrology) Coffee Break/Poster Sessions 15:10 -15:30 Parellel Sessions 1530 - 17:10 Session 6B: Session 6C: SUSTAINABLE WATER SEDIMENT AND TRANSPORT MODELING RESOURCES MANAGEMENT 17:00 - 18:00 Free Night Session 5D: GREEN INFRASTRUCTURE DESIGN AND LAND USE CHANGES CONFERENCE END Parellel Sessions 16:00 - 17:00 Session 3B: Session 3A: Session 3C: CLIMATE CHANGE IMPACTS & HYDROINFORMATICS TOOLS FLUVIAL HYDRAULICS 1 ADAPTATION 1 Stormwater Management and LID Practices in Canada: Updates, New Developments and Trends Prof. James Li & Gilles Rivard, PE, MSc. Lunch 12:20 -13:30 Session 2D: LAKE HYDRAULICS Coffee Break/Poster Sessions 15:45 - 16:00 WELCOME RECEPTION 18:00 - 19:30 DAY 4 - MAY 2 - SATURDAY Short Course: 08:30-12:30 DAY 1 APRIL 29 - WEDNESDAY CONFERENCE BANQUET 18:30 - 21:00 Session 6D: FLUVIAL HYDRAULICS 2 Table of Contents Welcome from conference chair............................................................................................................................................................... 4 Conference organizing committee ........................................................................................................................................................... 5 Conference program ........................................................................................................................................................................... 6-19 Exhibitors in the tradeshow ................................................................................................................................................................... 20 Sponsoring organizations ....................................................................................................................................................................... 21 Keynote addresses – Summaries ............................................................................................................................................................ 22 Abstracts for paper presentations .................................................................................................................................................... 23-56 (Sorted by paper number) Index by author … .............................................................................................................................................................................. 57-79 Full papers are available on the CSCE conference website. To access click the link to the full papers listed by session ID. Certificate of attendance: If you would like us to email you a certificate of attendance please advise the staff at registration or email us. 3 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Welcome Message Welcome to Montreal and the CSCE 22nd Canadian Hydrotechnical Conference On behalf of the Organizing Committee and the Hydrotechnical Council of the Canadian Society for Civil Engineering, it gives me great pleasure to warmly welcome you to the 22nd Canadian Hydrotechnical Conference, and especially to our beautiful City of Montreal, Quebec. This conference is a continuation of our great tradition to bring together hydrotechnical professionals in Canada and from other countries every two years. We are therefore excited about this gathering and the opportunity to welcome all of you to Montreal to discuss topical issues in our hydrotechnical field. The main theme of this year’s conference is focused on the sustainable management of water resources in the context of climate and environmental changes. This conference will hence provide a unique and exciting opportunity for delegates to interact and to share their knowledge and visions on this challenging topic. You will be able to share your experience and to discuss a wide range of critical water resources issues in the 4 keynote and 24 technical sessions that have been scheduled at this meeting. You have also the opportunity to take advantage of two short courses dealing with the latest developments of the US EPA SWMM model and the stormwater management and LID practices in Canada as well as a special event organized by the National Research Council of Canada on the recent development of the Blue and Green Kenue technologies for Hydraulics and Hydrology. I believe this unique gathering will produce meaningful outcomes relevant to your educational and professional interests, and I am confident that our attractive Montreal city and its unique culture will make your stay a memorable experience. I am looking forward to meeting each of you here in Montreal. Sincerely, Van-Thanh-Van Nguyen, PhD, ing. Conference General Chair 4 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference organizing committee We wish to recognize the outstanding contribution of our Committees to the organization of this conference: Conference General Chair: Van-Thanh-Van Nguyen, McGill University Local Organizing Committee: Chair: Van-Thanh-Van Nguyen, McGill University Vincent H. Chu, McGill University Jan Adamowski, McGill University Gilles Rivard, Lasalle/NHC Inc. Louis André Rinfret, MH2O Inc. Diana Qing Tao, Tetra Tech Inc. Technical Program Committee Chair: Vincent H. Chu, McGill University Co-Chair: Jan Adamowski, McGill University Paulin Coulibaly, McMaster University Nassir El-Jabi, University of Moncton Amin Elshorbagy, University of Saskatchewan Philippe Gourbesville, Nice Sophia Antipolis University, France Jeanne Huang, Tianjin University, China Tew-Fik Mahdi, École Polytechnique de Montréal Gregory Lawrence, University of British Columbia James Li, Ryerson University S. Samuel Li, Concordia University Shie-Yui Liong, National University of Singapore Leonard M. Lye, Memorial University of Newfoundland Ed McBean, University of Guelph Ioan Nistor, University of Ottawa Peter Rasmussen, University of Manitoba Slobodan Simonovic, Western University André St-Hilaire, INRS-ETE, University of Quebec Marc Villeneuve, Lasalle-NHC Yee-Chung Jin, University of Regina Fayi Zhou, City of Edmonton Exhibits and Sponsorship Committee: Chair: Gilles Rivard. Lasalle/NHC Inc. Co-chair: Michael Bender, Golder Associates Arbind Mainali, City of Edmonton Diana Qing Tao, Tetra Tech Inc. Louis André Rinfret, MH2O Inc. 5 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program WEDNESDAY APRIL 29 07:30 – 17:00 Registration Conference Level foyer 08:30 – 17:00 Short Course: Integrated 1D-2D Flood Modeling for Urban and Rural Watersheds with EPA SWMM5 and PCSWMM Computational Hydraulics International Room: Saint Laurent 18:00 – 19:30 Welcome Reception Room: Hochelaga 6 THURSDAY APRIL 30 07:30 - 17:00 Registration Room: Conference Level foyer 07:30 - 09:00 Networking Continental Breakfast Room: Mackenzie 09:00 - 09:30 Welcome and Opening Remarks Room: Marquette Van Thanh Van Nguyen Conference General Chair Chair, Department of Civil Engineering and Applied Mechanics Director, Brace Centre for Water Resources Management Professor, Endowed Brace Chair in Civil Engineering McGill University Michael Bender, Chair of CSCE Hydrotechnical Council Golder Associates, Ltd Alain Bourque, General Director OURANOS Consortium on Regional Climatology and Adaptation to Climate Change Jim Nicell Dean, Faculty of Engineering, McGill University 09:30 - 11:00 6 KEYNOTE LECTURE 1: Water Security – Priority Needs in a Climate Changing World Ed McBean Professor and Canada Research Chair in Water Supply Security University of Guelph, Canada There remains no question that the climate of the world is changing. There is widespread evidence that more intensive precipitation events and increasing temperature trends are taking place throughout the world. While these trends in records are widely demonstrating that the climate is changing, they are only indicators as to how we must adapt our understanding of water security issues. It is difficult to describe in words how climate change risks will influence the many other dimensions of water security since there are so many dimensions of interrelationships. While increases in rainfall intensity are evident, the changing rainfall intensities will, for example, transport manure and animal feces in runoff, increase suspended solids in waterbodies (soil fluvial erosion), waterborne disease outbreaks will increase, sewage backup into homes will result in increased I/I flows and flood-related damage to the infrastructure will take place. As well, increases in water temperatures will increase algal bloom frequencies, provide more favorable conditions for zebra mussel growth, increase microbial activity, and increase production of corrosive hydrogen sulfide. Even this substantial list, is only a part of the array of potential water security issues, where we expect to see increases in air temperature, the melting of permafrost, changing snowmelt conditions, sea level rise and influence on coastal areas, infrastructure design capacity will be influenced by out-of-date flood maps and out-of-date intensity-duration frequency curves, lack of water treatment capacity due to demand increases, and the capacity of wastewater treatment and sewage conveyance capacities (including the effects of increased populations and aging infrastructure). Clearly, the pathways ahead when dealing with the influence of climate change on water security are ominous. Water security issues will become one of the most important issues being faced by societies in the 21st century. The presentation will utilize specific examples to demonstrate the experience that is being gathered, to describe some of the climate change impacts becoming evident (particularly in relation to aging infrastructure, urbanization and climate change risks). As well, the interconnections between elements of climate change risks as they translate to other dimensions of water systems are described. The interrelated character of the influence of climate change will translate to impacts on all municipal-related water infrastructure, such that more encompassing understanding of the risks for municipal water infrastructure need to be entertained – the implications to the complexity of municipal engineering are enormous. CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program KEYNOTE LECTURE 2: Coupled Modeling of Atmospheric-Hydrologic Processes at Watershed Scale with Application to Ungauged and Sparsely-Gauged Watersheds M. Levent Kavvas Gerald and Lillian Orlob Endowed Chair and Distinguished Professor of Water Resources Engineering University of California-Davis, USA The modeling of the earth system at watersheds of varying spatial scale as a fully-coupled system of atmospheric processes aloft coupled with atmospheric boundary layer, land surface processes, and surface and subsurface hydrologic processes is described. The interactions among the various component processes within the earth system over a specified watershed region are described, and an approach for modeling these interactions is discussed. The fundamental issues of nonlinearity and spatial scaling of conservation equations and heterogeneity in the system are discussed, and a theoretical framework is proposed. The proposed modeling approach is useful at watersheds which have heterogeneous topography and land use/cover because its hydrologic model components are based on upscaled hydrologic governing equations and parameters that scale with the modeling grid scales within watersheds. The application of the described modeling methodology to ungauged and sparsely-gauged watersheds is presented. 11:00 - 11:15 Networking Break Conference Level foyer 11:15 - 12:35 Session 1A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 1 Room: Saint Laurent Session Chair: Jinhui Huang CSCE2015-1A1 An Integrated Extreme Rainfall Modeling Tool for Climate Change Impacts and Adaptation in Urban Areas Myeong-Ho Yeo and Van-Thanh-Van Nguyen McGill University CSCE2015-95 Development of Regional Storm Frequency Maps for the Upper Yangtze River Basin and Its Application to Assess Climate Change Jinhui Huang and Yu Li Nankai University, China CSCE2015-46 Changes in Heavy Rainstorm Characteristics with Time and Temperature Barry Palynchuk and Yiping Guo AECOM Canada Ltd. CSCE2015-87 Investigation of the Impact of Climate Change on Flooding In the Red River Basin Peter Rasmussen University of Manitoba 11:15 - 12:35 Session 1B: ADAPTIVE WATER MANAGEMENT IN A CHANGING CLIMATE Room: Saint Gatineau Session Chairs: Ed McBean and Slobodan Simonovic CSCE2015-26 Perceptions of Environmental Flows and Ecological Restoration – A Document Analysis Kate Reilly and Jan Adamowski McGill University CSCE2015-27 Environmental Flow and Economy in the Bow River Basin: Reaching a Compromise through a Hydroeconomic Model Jordan Gonda, Amin Elshorbagy and Howard Wheater University of Saskatchewan 7 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program CSCE2015-28 Integrated Water Resource Management under Water Supply and Irrigation Development Uncertainty Elmira Hassan Zadeh, Amin Elshorbagy, Ali Nazemi, Howard Wheater and Patricia Gober University of Saskatchewan CSCE2015-129 Dynamic River Modelling For Flood Risk Management Shohan Ahmad, Slobodan P. Simonovic University of Western Ontario 11:15 - 12:35 Session 1C: COASTAL HYDRAULICS Room: Bersimis Session Chairs: Hitoshi Tanaka and Ioan Nistor CSCE2015-18 Recovery of Concave Shoreline Induced By the 2011 Tokoku Tsunami Hitoshi Tanaka, Vo Cong Hoang and Yuta Mitobe Tohoku University, Japan CSCE2015-36 Optimal Use of Delft 3d Software for Wave Induced Coastal Erosion Guillaume Lamothe and Tew-Fik Mahdi École Polytechnique de Montréal CSCE2015-30 An Experimental Investigation of Bore-Induced Scour around a Circular Structure Alexandra Lavictoire, Ioan Nistor and Colin Rennie University of Ottawa CSCE2015-39 An Efficient Use of a Physical Model to Verify the Performance of Coastal Structures at Two Harbours in Oman Paul Knox, Graham Frank, Scott Baker and Andrew Cornett National Research Council of Canada 11:15 - 12:35 Session 1D: TURBULENT MIXING AND ENTRAINMENT Room: Peribonka Session Chairs: Amruthur Ramamurthy and Majid Mohammadian CSCE2015-127 Numerical and Experimental Investigation of Saline Discharges in Stationary Ambient Saeideh Kheradmand, Ousmane Seidou, Majid Mohammadian and Hossein Kheirkhah University of Ottawa CSCE2015-116 Experimental and Numerical Study of Thermal Buoyant Wall Jet in Calm Ambient Water Hassan Alfaifi, Majid Mohammadian and Hossein Kheirkhah University of Ottawa CSCE2015-91 The Effect of a Turbulent Background on the Concentration Field of a High-Schmidt-Number Passive Scalar within a Turbulent Jet Alejandro Perez-Alvarado, Susan Gaskin, Laurent Mydlarski McGill University CSCE2015-105 A Procedure to Measure Reynolds Stresses in the Flow Field of Hydroclones Mustafa Al Kayed, RahimTadayon, M.Alkayeed Concordia University 12:35 - 13:45 8 Lunch Room: Mackenzie CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program 13:45 - 15:45 Session 2A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 2 Room: Saint Laurent Session Chairs: Nassir El-Jabi and M. Naveed Khaliq CSCE2015-80 Estimation of Design Stream Flow with Parametric Frequency Pairing Method Jasmine Kang and Robert G Millar University of British Columbia CSCE2015-29 Probable Maximum Flood under Changing Climate Conditions for the Mattagami River Basin John Perdikaris, Anne Frigon and Kristina Koenig Ontario Power Generation CSCE2015-11 Anticipated Alteration in Extreme Events Utilizing Bias Correction of Two Climate Model Outputs for the South Nation Watershed Abdullah Alodah and Ousmane Seidou University of Ottawa CSCE2015-84 Climate Change and Storm Surges in the Hudson and James Bays Alexandre Massé, Jean-Pierre Savard, Marc Villeneuve and Corina Rosu LaSalle|NHC CSCE2015-35 Climate Change Influenced Flooding and Sea Level Rise on Canada’s West Coast Angela Peck and Slobodan P. Simonovic University of Western Ontario CSCE2015-130 Future Flooding Increase: Prediction and Probable Cause – A Case Study of Vietnam Central Coastal Area Ngoc Duong Vo and Philippe Gourbesville University of Nice Sophia Antipolis, France 13:45 - 15:45 Session 2B: SOME EMERGING TECHNOLOGIES IN HYDROLOGIC MODELING (Special Session by University of California-Davis, USA) Room: Gatineau Session Chair: M. Levent Kavvas, University of California-Davis CSCE2015-2B1 Ensemble Modeling Of Hydrologic Processes at One Shot: Modeling Stochastic Kinematic Wave Open Channel by the Stochastic Method of Characteristics Ali Ecran and M. Levent Kavvas University of California-Davis CSCE2015-2B2 Climate Change Projection of Snow Cover Over Three Mountainous In Northern California Chen Jiongfeng, K. Ishida, T.Q. Toan, S. Jang, N. Ohara and M.L. Kavvas University of California-Davis, USA CSCE2015-2B3 Numerical Atmospheric Hydrological Modeling Based Probable Maximum Precipitation Estimation K. Ishida, M.L. Kavvas, S. Jang, N. Ohara, Z.Q. Chen and M.L. Anderson University of California-Davis CSCE2015-2B4 Scaling Method for the Saturated Groundwater Equations James Polsinelli University of California-Davis 9 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program CSCE2015-2B5 Sediment Transport Scaling and Self-Similarity: Application to the One-Dimensional Non-Equilibrium Suspended Sediment Transport Process Kara Carr University of California-Davis CSCE2015-2B6 Numerical Atmospheric Hydrologic Modeling-Based Flood Frequency Analysis for Cache Creek Watershed T. Trinh, S. Jang, K. Ishida, Z.Q. Chen and M.L. Kavvas University of California-Davis 13:45 - 15:45 Session 2C: FLOODNET - A STRATEGIC RESEARCH NETWORK ON FLOODS IN CANADA Room: Bersimis Session Chair: Paulin Coulibaly, McMaster University CSCE2015-2C1 Overview of Floodnet Paulin Coulibaly, Donald H. Burn, Peter Rasmussen, Francois Anctil, Marguerite A. Xenopoulos and VanThanh-Van Nguyen McMaster University CSCE2015-2C2 Flood Regimes in Canada: Learning from the Past and Preparing For the Future Donald H. Burn, Paulin Coulibaly, Peter Rasmussen, Fahim Ashkar and Thian Y. Gan University of Waterloo CSCE2015-2C3 Development of New Methods for Updating IDF Curves in Canada Van-Thanh-Van Nguyen McGill University CSCE2015-2C4 Quantifying and Reducing Predictive Uncertainty of Floods François Anctil Laval University CSCE2015-2C5 Evaluation of Flood Forecasting and Warning Systems in Canada Peter Rasmussen University of Manitoba CSCE2015-2C6 Risk Analysis of Physical, Socio-Economic, and Environmental Impacts of Floods Marguerite Xenopoulos Trent University 13:45 - 15:45 Session 2D: LAKE HYDRAULICS Room: Peribonka Session Chairs: Gregory Lawrence and Joseph Lee CSCE2015-138 Potential Mixing Mechanisms in End Pit Lakes Gregory Lawrence University of British Columbia CSCE2015-110 Brackish Pit Lakes Approaching Fall Turnover Davood Hasanloo, Roger Pieters and Gregory Lawrence University of British Columbia 10 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program CSCE2015-122 Effects of Spectral Variation in the Attenuation Co-Efficient On the Heating of Lakes Yasmin Nassar, Roger Pieters and Gregory Lawrence University of British Columbia CSCE2015-117 Echosoundings in Base Mine Lake Edmund Tedford, Roger Pieters and Gregory A. Lawrence University of British Columbia CSCE2015-123 Under-Ice Circulation in Lakes Driven By Salt Exclusion Cynthia Bluteau, Roger Pieters and Gregory Lawrence University of British Columbia 15:45 - 16:00 Networking Break Conference Level foyer 16:00 - 17:00 Session 3A: CLIMATE CHANGE IMPACTS AND ADAPTATION 1 Room: Saint Laurent Session Chair: Zhiming Qi CSCE2015-99 Modeling Impacts of Climate Change on Hydrologic Processes in Subsurface Drained Croplands Using an Agricultural System Model Zhiming Qi McGill University CSCE2015-61 The Lake Champlain-Haut Richelieu Hydric System: Climate and Anthropogenic Changes and Adaptation Pierre Dupuis WSP Canada Inc. CSCE2015-86 Influences of ENSO, NAO, and PDO on Canada’s Monthly Streamflow: Trends and Variability Deasy Nalley, Jan Adamowski, Bahaa Khalil and Asim Biswas McGill University 16:00 - 17:00 Session 3B: HYDROINFORMATICS TOOLS Room: Gatineau Session Chair: André St-Hilaire CSCE2015-9 Breathing New Life to an Older Model: The Cequeau Tool for Flow and Water Temperature Simulations and Forecasting André St-Hilaire, Sébastien Ouellet-Proulx, Samah Larabi, Marie-Amélie Boucher, Marco Latraverse INRS-ÉTÉ CSCE2015-65 L-Moments Based Novel Record-Extension Technique for Short-Gauged Water Quality Parameters Bahaa Khalil, Ayman G. Awadallah, Jan Adamowski, Eman Hassan McGill University CSCE2015-89 Estimation of Mean Monthly Flows at Ungauged Locations in the Maritimes and Pacific Hydrologic Regions M. Naveed Khaliq, Wayne Jenkinson, James Bomhof, Martin Serrer, Erika Klyszejko National Research Council Canada CSCE2015-242 Design of Riprap by Optimization of Neural Network Input Using a Spread Sheet Abdelhamid El Tahan Arab academy for science Technology and Maritime Transport, Cairo, Egypt 11 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program 16:00 - 17:00 Session 3C: FLUVIAL HYDRAULICS 1 Room: Bersimis Session Chairs: Van Thinh Nguyen and Michael Bender CSCE2015-51 Evaluation Of Existing Equations For Estimating Bank Erosion In Meandering Streams Mosen Ebrahimi and Ana Maria Ferreira da Silva Queen's University CSCE2015-76 The Hydraulics of River Groynes / Spurs and Their Application to the Bow River after the June 2013 Flood Andrew Oosting, Michael Bender, Saul Marin and Shouhong Wu Golder Associates Ltd. CSCE2015-220 3D Numerical Simulation of Turbulent Flow and Pollutant Transport in Meandering Channels Van Thinh Nguyen and Donghae Baek Seoul National University, Korea 16:00 - 17:00 Session 3D: FLOOD HYDRAULICS AND HYDROLOGY Room: Peribonka Session Chairs: Philippe Gourbesville and Heather McGrath CSCE2015-70 Two Dimensional Hydrodynamic Model Development for Complex Floodplain Studies Junying Qu, David Brown and Ron Kaatz KGS Group CSCE2015-62 Framework for the Development of Flood Inundation Maps at the Press of a Button Heather McGrath, Miroslav Nastev and E. Stefanakis University of New Brunswick CSCE2015-109 2D High Resolution River Flood Simulations in Urban Environment: Global Sensitivity Analysis for Spatial Ranking of Uncertain parameters Morgan Abily, Olivier Delestre, Nathalie Bertrand and Philippe Gourbesville University of Nice Sophia Antipolis, France 17:00 -18:00 SPECIAL SESSION by the National Research Council of Canada Kenue Joint Industry Partnership Kick-off Meeting (Blue and Green Kenue technologies for Hydraulics and Hydrology) FRIDAY MAY 1 07:30 - 17:00 Registration Room: Conference Level foyer 07:30 - 08:30 Networking Continental Breakfast Room: Mackenzie Keynote Lectures Room: Marquette Session Chairs: Vincent Chu and Gilles Rivard 08:30 -10:00 12 KEYNOTE LECTURE 3: Environmental Hydraulics of Chlorine Disinfection for the Hong Kong Harbour Area Treatment Scheme Joseph Hun-wei Lee, BSc, MSc and PhD Department of Civil and Environmental Engineering Hong Kong University of Science and Technology CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program The Hong Kong Harbour Area Treatment Scheme (HATS) consists of a 24 km long deep tunnel sewerage system that collects and conveys sewage from the urban areas of Hong Kong to a centralized sewage treatment plant at Stonecutters Island since 2001. A sewage flow of 1.4 million m3/d receives Chemically Enhanced Primary Treatment (CEPT) followed by discharge through a 1.2 km outfall in the western Victoria Harbour. In order to protect the nearby marine beaches, chlorination facilities have been put into operation to provide disinfection to the treated sewage since 2010. Sodium hypochlorite solution is injected at high concentrations in the form of multiple dense jets (relative density 1.2) into the sewage cross flow in a flow distribution chamber (FDC). The mixing and transport of chlorine in the FDC and the downstream chlorine contact culverts, and the complex chemical consumption of chlorine under different conditions play important roles in determining the sewage effluent quality. In addition to pollution source loads, the beach water quality is also determined by the trapping of the buoyant wastewater in a stratified tidal flow, and bacterial mortality under depth-dependent and changing hydro-meteorological conditions. The disinfection operation has brought about significant improvements to the marine water quality in Victoria Harbour. While chlorine is an effective disinfectant for reducing pathogen levels, it is also toxic to aquatic life. There are also concerns with optimal chlorine dosage control which will help minimize environmental impact, reduce energy consumption and operation cost whilst preserving the protection of the water quality of beaches, seawater intakes and other sensitive receivers. The lecture will highlight several key aspects of the fluid mechanics of disinfection dosage control in a modern wastewater treatment and disposal system: (i) the fluid mechanics of dense jets including the internal hydraulics of the chlorine dosing units; (ii) hydraulics of the disinfection channels and submarine multiport rosette diffuser system; (iii) the field validation of daily beach water quality forecasts by the WATERMAN real time forecast system for smart cities. The WATERMAN system has also been applied for emergency response in pollution accidents and development of operational strategies. KEYNOTE LECTURE 4: Challenges of the Water Information System: Needs and Opportunities Philippe GOURBESVILLE Nice Sophia Antipolis University / Polytech Nice Sophia The massive and rapid spread of communicating devices within the Society and their application to the industrial sectors is not really coordinated. The current situation in the water domain is characterized by a low level of maturity concerning standardization of ICT solutions and business processes. In such context, Hydroinformatics methods and tools have to adapt and demonstrate their capacities to become an essential component of the Water Information System which is now gradually appearing. The pillars for the development of this vision are the various business processes which are taking place in the 3 water domains: water uses, water hazard mitigation and water resources preservation. The new developments within the Hydroinformatic field have to integrate key concepts like interoperability and sustainability in order to cope with the needs of water professionals who are operating in the various domains. The emerging technologies like M2M or Ubiquitous Computing allow developing new methods and approaches which may overcome the restricted and limited definition of Hydroinformatic tools to numerical modeling systems. After the introduction of several major concepts, the given presentation will illustrate the new possibilities offered to Hydroinformatics methods with examples regarding high performance computing and high resolution modeling, error propagation and real time monitoring. 10:00 -10:20 CSCE Hydrotechnical Award Presentation 10:20 - 10:40 Networking Break Conference Level foyer 10:40 - 12:20 Session 4A: CLIMATE CHANGE IMPACTS AND ADAPTATION 2 Room: Saint Laurent Session Chair: Peter Rasmussen CSCE2015-82 Investigating Seasonal Modeling of Flow Series for Nashwaak River, NB, Canada Shabnam Mostofi Zadeh and Donald H. Burn University of Waterloo 13 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program CSCE2015-4A2 Comparison of Multisite and Single-Site Temperature Downscaling Effects on Streamflow and Runoff Simulation Alireza Zareie, Mahzabeen Rahman and V-T-V Nguyen McGill University CSCE2015-32 Decision-Making under Climate Uncertainty in the Hydroelectric Sector David Huard, Michael Vieira, Nathalie Thiémonge and René Roy Ouranos CSCE2015-83 Analysis and Monitoring Of Watercourses in Urban Environments for Sustainable Development and Adaptation to Climate Change – The Lorette River Case Study François Groux, Pierre Pelletier and Leila Ouahit WSP Canada CSCE2015-44 Predicted Changes in Peace River Channel Morphology and Sediment Transport Related To the Site C Clean Energy Project Craig Nistor, Violeta Martin Knight Piesold Ltd. 10:40 – 12:20 Session 4B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 1 Room: Gatineau Session Chairs: Gregory Lawrence and Amruther Ramamurthy CSCE2015-121 Undular Waves in Subcritical Flow over an Obstacle Gregory Lawrence University of British Columbia CSCE2015-107 Experimental Study of Wake Characteristics of Shallow Flow past Tandem Cylinders Mehdi Heidari, Vesselina Roussinova, Ramaswami Balachandar and Ron Barron University of Windsor CSCE2015-114 Shear Instability in High-Speed Shallow Flows Shooka Karimpour and Vincent H. Chu McGill University CSCE2015-115 Mixing In Shallow Waters at High Froude Number Shooka Karimpour and Vincent H. Chu McGill University CSCE2015-104 V-Shaped Multi-Slit Weir Systems Amruther Ramamurthy, Jinying Qu Concordia University 10:40 – 12:20 Session 4C: URBAN FLOOD RISK MANAGEMENT AND ADAPTATION Room: Bersimis Session Chairs: Gilles Rivard and James Li CSCE2015-13 Evaluation of Stormwater Low Impact Development Practices for the Lake Simcoe Regions James Li, Darko Joksimovic and Doug Banting Ryerson University 14 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program CSCE2015-68 Application of Gauge-Adjusted Weather Radar for Hydrology Jack McKee, Mark Helsten, Mark Shifflett and Andrew Binns The University of Western Ontario CSCE2015-53 Design of a Novel Vortex Drop Structure for Large Stormwater Flows Genevieve Kenny and Bernardo Majano RV Anderson Associates Limited CSCE2015-58 Flow Development and Retention Times in a Vortex-Type Storm Water Retention Pond Rocky Chowdhury, Kerry Anne Mazurek, Gordon Putz and Cory Albers University of Saskatchewan CSCE2015-16 Determining the Optimal Time Delay Embedding Parameters of Urban Water Supply System Signals John Quilty, Jan Adamowski McGill University 10:40 - 12:20 Session 4D: DECISION SUPPORT SYSTEMS Room: Peribonka Session Chair: Yiping Guo CSCE2015-72 Converting Wastes to Resources: A Decision-Support Model for Short-Rotation Coppice Systems Planning and Management Huy T. Nguyen, Evan G. R. Davies, Miles Dyck, Martin Blank, Richard Krygier McGill University CSCE2015-118 Use of Groundwater Table Variation to Optimize the Design of Shallow and Deep Monitoring Well Networks James Leach, Paulin Coulibaly, Yiping Guo McMaster University CSCE2015-54 Development and Operation of the Great Lakes Storm Surge Operational System Patrick Delaney, Gord Gallant, Henrik Hansen DHI Water & Environment CSCE2015-55 Using Detailed 2d Urban Floodplain Modelling To Inform Development Planning in Mississauga, ON. Patrick Delaney, Qiao Yin, Nick Lorrain, Tim Mereu DHI Water & Environment CSCE2015-74 3D Hydraulic Modeling to Support Hydrotechnical Design and Decision-Making Process Nicolas Guillemette, Vincent Métivier, Gilles Bourgeois, Pierre Pelletier and Jean-Luc Daviau WSP Canada Inc. 12:20 - 13:30 Lunch Room: Mackenzie 13:30 - 15:10 Session 5A: STRATEGIES FOR EFFICIENT WATER RESOURCES PLANNING Room: Saint Laurent Session Chair: Jan Adamowski CSCE2015-47 The Effect of Renaissance Dam on the Egyptian Water Budget Abdelhamid El-Tahan, Mohamed Hossam Arab academy for science Technology and Maritime Transport, Cairo, Egypt 15 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program CSCE2015-132 Role of Plantain Peel Biochar in Enhancing Safe Use of Untreated Wastewater Christopher Nzediegwu, Shiv Om Prasher, Abdul Ehsan Mannan, Eman Elsayed, Jaskaran Dhiman McGill University CSCE2015-10 Development of a Reilp Approach for Long-Term Planning of WRM System in Saudi Arabia Badir Alsaeed, Lei Liu Dalhousie University CSCE2015-133 Use of Super Absorbent Polymers (Hydrogels) to Promote Safe Use of Wastewater in Agriculture Jaskaran Dhiman, Shiv o. Prasher, Abdul Mannan, Eman Elsayed, Christopher Nzediegwu McGill University 13:30 - 15:10 Session 5B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 2 Room: Gatineau Session Chairs: Violeta Martin and Joseph Lee CSCE2015-206 Measurement of Scour Profiles around Bridge Piers in Channel Flow with and Without Ice Cover Peng Wu and Ramaswami Balachandar University of Windsor CSCE2015-103 Simulation of Flow past an Open Channel Floor Slot Amruthur Ramamurthy and Jinying Qu Concordia University CSCE2015-102 Nonlinear PLS Method for Side Weir Flows Amruthur Ramamurthy, Jinying Qu Concordia University CSCE2015-100 Discharge Characteristics of Siphon Spillways Amruthur Ramamurthy and Rahim Tadayon Concordia University CSCE2015-38 Hydrodynamic Modelling of Intakes for Run-of-River Hydroelectric Projects Violeta Martin Knight Piesold Ltd. 13:30 – 15:10 Session 5C: DAM BREACH AND LANDSLIDE Room: Bersimis Session Chairs: Tew-Fik Mahdi and Amruthur Ramamurthy CSCE2015-85 Probabilistic Method to Evaluate the Peak Outflow of Dam Failures by Overtopping Youssef Bentaiebi, Tew-Fik Mahdi and Claude Marche École Polytechnique de Montréal CSCE2015-23 Modeling and Simulation of Tailings Dam Breaches Using SPH Atilla Zsaki, P. Daneshvar Concordia University CSCE2015-41 Numerical Simulation of Dam Break Flows Using Depth-Averaged Hydrodynamic and Three-Dimensional CFD Models Daniel Robb and Jose Vasquez Northwest Hydraulic Consultants 16 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program CSCE2015-106 Characteristics of Flow around Open Channel 90° Bends with Vanes Amruthur Ramamurthy, S.S.Han, and P. Biron Concordia University CSCE2015-50 Three-Dimensional Numerical Simulations of Subaerial Landslide Generated Waves William Daley Clohan, Bernard Laval and Jose Vasquez Golder Associates 13:30 - 15:10 Session 5D: GREEN INFRASTRUCTURE DESIGN AND LAND USE CHANGES Room: Peribonka Session Chairs: Victor Muñoz and Marc Villeneuve CSCE2015-124 Tidal In-Stream Power Resource Potential Joel Atwater and Gregory Lawrence University of British Columbia CSCE2015-31 Using Regional Data Exploration to Improve Understanding of Local Hydrologic Parameters: Three Practical Cases in Canada, Mexico and Turkey Victor Muñoz SRK Consulting CSCE2015-79 Comprehensive Numerical Model of the St. Lawrence Estuary between Quebec City and Rimouski – Application to Hydrodynamics, Wave and Sediment Transport Catherine Denault and Marc Villeneuve Lasalle|NHC CSCE2015-20 The Effect of Sand Grain Size on the Development of Cyanobacterial Crusts Offer Rozenstein, E Zaady, I Katra, A. Karnieli, J Adamowski, H Yizhaq McGill University 15:10 -15:30 Networking Break Conference Level Foyer 15:30 -17:30 Session 6A: HYDRAULIC STRUCTURE MODELING AND DESIGN Room: Saint Laurent Session Chairs: Samuel Li and Marc Villeneuve CSCE2015-33 Abrasion of Hydraulic Structures Concrete Surface by Water-Borne Sand Mohammad Sabbir Hasan, Attila Zsaki, S. Samuel Li and Michelle Nokken Concordia University CSCE2015-78 Romaine Hydroelectric Complex – Scale Model Optimization of the Hydraulic Structures Marc Villeneuve and Marc Barbet Lasalle|NHC CSCE2015-21 Physical Modelling and Design Optimizations for President Kennedy Terminal, Brazil Scott Baker, Paul Knox, Keyvan Mahlujy and Andrew Cornett National Research Council of Canada CSCE2015-73 Innovative Wave Analysis Approach for Decision-Making – Case Study: Mont-Louis Wharf Rehabilitation Steve Renaud, Pierre Dupuis, Justin McKibbon and Nicolas Guillemette WSP Canada Inc. 17 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program CSCE2015-93 Design and Construction of a Ships Retention System in Beauharnois Canal along the St. Lawrence Seaway Navigation System Razek Abdelnour, Elie Abdelnour, George Comfort and Gabriel Menendez-Pidal Geniglace Inc. 15:30 – 17:30 Session 6B: SUSTAINABLE WATER RESOURCES MANAGEMENT Room: Gatineau Session Chair: Jan Adamowski, McGill University CSCE2015-66 Social Learning for Meaningful Participation: Transboundary Water Resource Management in the Great Lakes and St. Lawrence River Alison Furber, Geneviève Grenon, Wietske Medema and Jan Adamowski McGill University CSCE2015-17 Improved Knowledge-Based Cooperative Particle Swarm Optimization for Flood Control Reservoir Operation Benyou Jia, Slobodan Simonovic, Ping’an Zhong University of Western Ontario CSCE2015-215 Application of Water Jet Cavitation on Pipeline Cleaning Hongyi Sun and Wenqi Ma University of Windsor CSCE2015-77 CFD Modeling of a Lakewater Cooling Intake Bernardo Majano and Genevieve Kenny RV Anderson Associates Limited 15:30 - 17:30 Session 6C: SEDIMENT AND TRANSPORT MODELING Room: Bersimis Session Chairs: Shawn Clark and Tew-Fik Mahdi CSCE2015-43 Variation in River Bed Morphology and Sediment Transport Rates during Flood Events Etta H. Gunsolus and Andrew D. Binns The University of Western Ontario CSCE2015-60 Using Suspended Sediment Particle Size Distributions to Characterize Sediment Transport on the Red River Masoud Goharrokhi and Shawn Clark University of Manitoba CSCE2015-126 Experimental and Numerical Modeling of Erosion and Sedimentation in Navigation Channel Wanqing Chi, David Z. Zhu and Yanling Liu First Institute of Oceanography, China CSCE2015-15 Automatic Calibration Tool For Two-Dimensional Hydraulic and Sediment Model for River Systems Simon Deslauriers and Tew-Fik Mahdi École Polytechnique de Montréal 18 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Conference Program 15:30 – 17:30 Session 6D: FLUVIAL HYDRAULICS 2 Room: Peribonka Session Chairs: Gaven Tang and Joshua Wiebe CSCE2015-141 Design and Hydrodynamic Modelling of Walleye Habitat Improvements in the Nipigon River Joshua Wiebe, Rob Swainson and Graham Frank W.F. Baird & Associates Coastal Engineers Ltd CSCE2015-42 1D Hydraulic Modelling on a Large and Complex Domain: Data Management and Model Setup Gaven Tang, Deighen Blakely and Peter Onyshko Golder Associates Ltd. CSCE2015-8 Assessment of CFD Modelling Methods for Predicting Turbulent Flow and Bed Shear Stress Around Bridge Piers Nazmus Sakib, S. Samuel Li, Attila M. Zsaki University of Alberta CSCE2015-69 Evaluation of Hydraulic Zone of Influence for Planktonic Entrainment at a Cooling Water Intake Structure in Lake Huron Jack Brand, Andrew D. Binns and Stephen S. Crawford University of Western Ontario CSCE2015-19 Computational Modeling of Thermally Stratified Reservoirs Upstream of Hydropower Facilities Mathew Langford and David Z. Zhu Amec Foster Wheeler Environment and Infrastructure 19:00 – 21:00 Conference Dinner Room: Saint Francois SATURDAY MAY 2 08:00 – 13:00 Registration Room: Conference Level foyer 08:30 – 12:30 Short Course: Stormwater Management and LID Practices in Canada: Updates New Developments and Trends Room: Saint Laurent Prof. James Li and Gilles Rivard, PE, MSc. 19 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Exhibitors in the Tradeshow Exhibits schedule is as follows: Thursday, April 30: Continental Breakfast Break Lunch Break 7:30 am – 9:00 am 11:00 am – 11:15 am 12::35 – 1:35pm 3:45pm – 4:00pm Friday, May 1: Continental Breakfast Break Lunch Break 7:30 am – 8:30 am 10:20 am – 10:40 am 12:30 – 1:30pm 3:10pm – 3:30pm Exhibitors CHI Established in 1978, Computational Hydraulics International (CHI) has developed, marketed and supported technically advanced, professional software systems for stormwater management, wastewater and watershed modeling. PCSWMM, our main software offering, has been the trusted spatial decision support system for the US EPA SWMM for over 25 years. Contact: Karen Finney M.Sc. Eng. P.Eng Telephone: 519-767-0197 E-mail: [email protected] DHI Group The National Research Council (NRC), the Government of Canada's premier R&D organization, helps industry take research from the lab to the marketplace. The NRC’s Marine Infrastructure, Energy and Water Resources (MIEWR) program works closely with clients and stakeholders to deliver specialized consulting, research and technology development services, driving innovation in coastal and ocean engineering, water resources engineering and management, and marine renewable energy DHI is an independent, international consulting and research organization with a focus towards solving the world’s most challenging problems in water environments. DHI is involved in a wide range of water related projects in Canada and around the world and is the developer of the popular MIKE suite of water modeling software. Contact: Patrick Delaney, Managing Director Telephone: 519-650-4545 E-mail: [email protected] The National Research Council (NRC) The National Research Council (NRC), the Government of Canada's premier R&D organization, helps industry take research from the lab to the marketplace. The NRC’s Marine Infrastructure, Energy and Water Resources (MIEWR) program works closely with clients and stakeholders to deliver specialized consulting, research and technology development services, driving innovation in coastal and ocean engineering, water resources engineering and management, and marine renewable energy. Contact: Enzo Gardin P.Eng., MBA Telephone: 613- 991-2987 E-mail: [email protected] 20 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Sponsoring organizations BRONZE SPONSOR MH2O Inc. MH2O Inc. www.mh2o.co specializes in hydrologic and hydraulic modeling for water management. In urban context, it involves flood control, sanitary overflow management, quality and erosion control in receiving water courses. River hydraulics include floodplain delineation, culvert and bridge design and dam break analysis for civil security. MH2O uses commercial software, available freeware and in-house programs for customisation and data processing. Contact: Louis Andre Rinfret, President Telephone: 514.229.0918 Email: [email protected] Ouranos Ouranos www.ouranos.ca est un consortium qui intègre quelque 450 scientifiques et professionnels issus de différentes disciplines. Ouranos a pour mission l’acquisition et le développement de connaissances sur les changements climatiques et leurs impacts ainsi que sur les vulnérabilités socioéconomiques et environnementales, de façon à informer les décideurs sur l’évolution du climat et à les conseiller pour identifier, évaluer, promouvoir et mettre en œuvre des stratégies d’adaptation locales et régionales. Ouranos www.ouranos.ca is a consortium that brings together 450 scientists and professionals from different disciplines. Ouranos’ mission is to acquire and develop knowledge on climate change, its impact and related socioeconomic and environmental vulnerabilities, in order to inform decision makers about probable climate trends and advise them on identifying, assessing, promoting and implementing local and regional adaptation strategies. TISED The Trottier Institute for Sustainability in Engineering and Design (TISED) in McGill University’s Faculty of Engineering informs and educates policy-makers and the public about sustainability issues, and supports research and teaching on sustainability in engineering and design. Information about TISED’s activities is available at www.mcgill.ca/tised/. Contact: Lauren Penney Telephone: 514-398-3953 Email: [email protected] Tetra Tech Tetra Tech is a leading provider of consulting engineering, program management, construction management, and technical services, with nearly 3,500 employees in 50 offices across Canada. We have 50+ years of experience in water, municipal infrastructure, transportation, buildings, environment, power, solid waste management, geotechnical, oil and gas, industrial, remote and extreme environments, and arctic engineering. Contact: Diana Qing Tao Telephone: 514-257-2409 E-mail: [email protected] SILVER SPONSOR Lasalle/NHC Inc. In 1956, Neyrpic opened one of the first private hydraulic laboratories in North America. With its offices and main laboratory still located in their original location, Lasalle|NHC (www.lasalleNHC.com) has offered continuous services in hydraulics and applied fluid mechanics for nearly sixty years. Our recent merger with Northwest Hydraulic Consultants (www.nhcweb.com) has created one of the largest networks of hydraulic laboratories and water resources specialists in America, with offices in Canada (Quebec, Alberta and British Columbia), the United-States (Washington state and California) and Brazil. Our experts in physical and numerical modeling offer a wide variety of services, developing innovative and effective solutions for hydraulic works, water resources, urban infrastructures, and climate change. Lasalle|NHC has successfully completed thousands of projects for public and private clients in North America, Africa and Asia. GOLD SPONSORS Brace Centre for Water Resource Management McGill’s Brace Centre for Water Resource Management was established in 1999 and is one of the world’s premier research centres in the areas of water and the environment. The Brace Centre’s researchers have collaborated with a host of well-regarded national and international organizations. The Centre has been undertaking projects in regions around the world including Egypt, Central America, Central Asia, Southeast Asia, South Asia, Zimbabwe, and the Caribbean. Website: http://www.mcgill.ca/brace/ Golder Associates Established in 1960, Golder is a global, employee-owned organisation driven by our purpose to engineer earth’s development while preserving earth’s integrity. We help our clients find sustainable solutions to the challenges society faces today including extraction of finite resources, energy and water supply and management, waste management, urbanisation, and climate change. We do this by providing a wide range of independent consulting, design and construction services in our specialist areas of earth, environment and energy. Our services fall into 6 main areas: • Engineering • Natural Resources Planning & Evaluation • Environmental & Social Assessment • Environmental Management & Compliance • Strategic Planning, Advice & Management • Water For more information, visit golder.com. 21 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Distinguished Keynote Lecturers Biographies Professor Philippe GOURBESVILLE Director Polytech Nice Sophia University Nice Sophia Antipolis, Polytech Nice Sophia, France Prof. Dr. Philippe Gourbesville is, since 2007, the Director of Polytech Nice Sophia [www.polytechnice.fr], the engineering school of Nice Sophia University (NSU), France. Philippe is a professor for Hydroinformatics and Water Engineering at SNU and is a visiting professor at various European and international universities mainly in Asia. Since 2004 and under the Erasmus Mundus, Philippe has developed the first joint master degree EuroAquae focused on hydroinformatics and water management with 5 European leading universities [www.euroaquae.org]. In parallel, Philippe has coordinated several Intensive Programmes under the Erasmus framework since 2000 and he is also the coordinator for International Development of the Polytech Group. The Polytech Group gathers 13 graduate engineering schools located within 13 universities and is currently the leading group for engineering training in France. In addition, Philippe is or has been involved as partner or coordinator in many research projects under FP7 (CORFU, @qua) and H2020 (Widest) frameworks mainly related to water related issues and ICT. Philippe has authored more than 120 scientific papers dedicated to hydroinformatics, numerical methods, modeling tools, flood management and resilience. Philippe is actively involved in several international organizations like IAHR, IAHS, … and he has received the “Hydrotechnique Grand Prix” from the French Hydrotechnique Society in 2011. Every 2 years, Philippe hosts and organizes with the SHF, the SimHydro conference in Sophia Antipolis, France. Philippe has been invited many times as keynote speaker in various international events in Europe and worldwide. Professor M. Levent KAVVAS Gerald and Lillian Orlob Endowed Chair Professor of Water Resources Engineering University of California-Davis, USA Levent Kavvas is currently a Distinguished Professor and holder of the Orlob Endowed Chair Professor of Water Resources Engineering at University of California – Davis (USA). His scientific and professional contributions over the last three decades have been mostly in the areas of hydrology and hydrometeorology. Levent has been the recipient of a number of awards by the American Society of Civil Engineers (Ven Te Chow Award, Arid Lands Hydraulic Engineering Award; Richard Torrens Award; etc.) including being named a Fellow in the ASCE. He was the Founding Editor-in-Chief of the ASCE Journal of Hydrologic Engineering, and a member of a number of other journal editorial boards and expert committees in US and in many other countries. He has published more than 190 publications in hydrology and hydrometeorology, co-author of Earth System Science Encyclopedia, and co-editor of IAHS book “Soil-Vegetation-Atmosphere Transfer Schemes and Large-Scale Hydrological Models”. Professor Joseph Hun-wei LEE Vice-President for Research & Graduate Studies Chair Professor of Civil & Environmental Engineering Prof Lee grew up in Hong Kong and obtained his BSc, MSc and PhD degrees in Civil Engineering from the Massachusetts Institute of Technology (1969-1977). He joined the University of Hong Kong in 1980, where he served as Chair Professor (1995-2010) and Pro-Vice-Chancellor (2004-2010). He took office as Vice-President for Research and Graduate Studies at the Hong Kong University of Science and Technology (HKUST) on 1 November 2010. Prof Lee is an internationally recognized expert in environmental hydraulics. He is the Chief Editor of the Journal of Hydro-environment Research and past Vice-President of the International Association for Hydro-environment Engineering and Research IAHR (2007-2011). He is the recipient of the 2013 Karl Emil Hilgard Hydraulic Prize of ASCE, and also the first Asia-based academic to receive the ASCE Hunter Rouse Hydraulic Engineering Award (2009). In 2010 he was bestowed a State Scientific and Technological Progress Award (Second Class) by the Chinese State Council. Prof Lee has served as expert consultant on numerous hydro-environmental projects and on many advisory bodies in Hong Kong, Scotland, Germany and Singapore. He is a Fellow of the Royal Academy of Engineering, United Kingdom and the Hong Kong Academy of Engineering Sciences. Professor E. A. MCBEAN, Ph.D., P.Eng. P.E., FCAE, FCSCE Professor of Water Resources and Canada Research Chair in Water Supply Security University of Guelph – Guelph, Ontario Ed McBean received his B.A.Sc. from the University of British Columbia his S.M. and Ph.D. from the Massachusetts Institute of Technology, all degrees in civil engineering. His experience includes two decades as a professor at the University of Waterloo, a decade as a senior executive at Conestoga-Rovers & Associates, and the most recent 11 years as Professor of Water Resources at the University of Guelph, a Canada Research Chair in Water Supply Security, and A/Dean of the College of Physical and Engineering Science. Ed has been the recipient of a number of awards including being named a fellow in the Canadian Academy of Engineering, a fellow in both the CSCE and in Engineers Canada, recipient of the Camille A. Dagenais Award for outstanding contributions to the Development and Practice of Hydrotechnical Engineering, and the Research and Development Medal from the Professional Engineers of Ontario and OSPE. An expert in risk assessment and water supply, Ed has published two books, edited 17 books, published more than 300 papers in refereed journals and made more than 400 presentations at professional society meetings. Ed has experience in water security issues in more than 70 countries around the globe. 22 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-9 Sorted by abstract number Presented in Session 3B: HYDROINFORMATICS TOOLS Breathing New Life to an Older Model: The Cequeau Tool for Flow and Water Temperature Simulations and Forecasting André St-Hilaire A number of hydrological models developed in the later part of the 20th century run the risk of becoming obsolete. One such model, CEQUEAU, was reprogrammed by its main industrial user, Rio Tinto Alcan. CEQUEAU is a conceptual semi-distributed that can simulate/forecast daily/hourly flow, as well as daily water temperature. The new version of the model maintains the conceptual, hydrological budget and soil reservoir approach of the original one. However, the format structure is less restrictive than the original FORTRAN code. It allowed for new modules to be tested. Input physiographic and water routing data can now be extracted using a GIS and matlab script. Two additional snow melt routines are being implemented (CEMANEIGE and the Utah Energy Balance model). A total of six different potential evapotranspiration algorithms are being tested and compared. In addition, an automatic calibration algorithm based on depth functions and the Tabu Search protocol is being implemented. The water temperature model was also improved. The time step of some meteorological input data was changed from monthly to daily and the model is now able to account for the impacts of dams on the thermal regime. CSCE2015-10 Presented in Session 5A: STRATEGIES FOR EFFICIENT WATER RESOURCES PLANNING Development of a Reilp Approach for Long-Term Planning of WRM System in Saudi Arabia Alsaeed Badir Water resources in Saudi Arabia are very limited while the population is steadily growing at a high rate. Since the yearly rainfall rate is very low in most regions of the country, the non-renewable groundwater has exceedingly consumed which resulted in a huge threat for this precious resource. The desalination water and reclaimed water, which are unconventional water resources, are used as well but in a small amount. Regarding the water users, the largest consumption of water comes from the agricultural, domestic, and industrial sectors, respectively. Without long-term planning and optimal allocation of scarce water resources among a variety of users, the country will continue to face many problems related to water in the long run. In this study, a risk explicit interval-parameter linear programming (REILP) approach is developed and applied to the long-term planning of the water resources management (WRM) system in Saudi Arabia. This approach can effectively reflect the interactions between overall cost-benefit and risk level of WRM system. CSCE2015-11 Presented in Session 2A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 2 Anticipated Alteration in Extreme Climate Events Utilizing Bias Correction of Two Regional Climate Models for the South Nation Watershed Alodah Abdullah Climate change studies are crucial to assist decision-makers in understanding future risks and planning adequate adaptation measures. In general, Global/Regional Climate Models (GCMs/RCMs) achieve coarse resolutions, and are thus unable to provide sufficient information to conduct local climate assessments. Downscaling, defined as a method that derives local to regional-scale (10 to 100 km) information from larger-scale models or data analyses, is used to address this deficiency. In this thesis, a particular downscaling technique, known as the Quantile-Quantile transformation, was used to adjust the statistical distribution of RCM variables to match the statistical distribution of the observed variables generated by two RCMs: the Canadian Regional Climate Model version 3.7.1 and the ARPEGE model, on the historical period (1961-2001). The analyses presented in this study were applied to daily precipitation as well as maximum and minimum temperatures in the South Nation watershed in Eastern Ontario, Canada. The two-sample Kolmogorov–Smirnov test indicated that the Quantile-Quantile transformation improved the shape of the PDF of RCM-simulated climate variables. The results suggest that, under the A1B scenario, temperatures in the watershed would rise significantly and there would be an increment in precipitation occurrence and intensity. The study outlined how the frequency and intensity of some extreme weather events will evolve in the 2041-2081 period in response to the rise in atmospheric GHG concentrations. Projected impacts were investigated by tracking future changes in four extreme temperature indices and three precipitation indices. It was predicted that heavy precipitation events and warm spells will occur more frequently and intensely, while extreme cold events will be weaker, and some will be hardly observed. 23 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-13 Sorted by abstract number Presented in Session 4C: URBAN FLOOD RISK MANAGEMENT AND ADAPTATION Evaluation of Stormwater Low Impact Development Practices for the Lake Simcoe Regions Li James In support of the efforts of the Lake Simcoe Region Conservation Authority to meet its vision for the restoration and protection of Lake Simcoe and its watershed, the Ryerson University research team conducted a study to evaluate the suitability and effect of implementation of stormwater low impact development practices (LID) within the pre-defined uncontrolled study area where conventional stormwater management practices are not feasible. The objectives of the project were to: identify opportunities for the implementation of these LID; quantify at a planning level the pollutant loading reduction to Lake Simcoe; and ultimately provide guidance to municipalities on the cost-effectiveness of various LID in their jurisdiction. Phase 1 of the project focused on the compilation of existing data and information and screening of opportunities of LID in the study area using custom-design geographic information system models. Phase 2 concentrated on the evaluation of the best combinations of LID and the quantification of preliminary costs of LID and annual pollutant loading reduction to Lake Simcoe. The study findings indicated that the best combinations of LID, such as bioretention cell, rainwater harvesting, greenroof, and downspout disconnection, could potentially reduce the nutrient loading from the uncontrolled study area by about 10-15%. CSCE2015-15 Presented in Session 6C: SEDIMENT AND TRANSPORT MODELING Automatic Calibration of 2-D Simulation of River Reach Simon Deslauriers River model calibration is essential for reliable model prediction. The manual calibration method is laborious, time consuming and requires expert knowledge. River engineering software are now equipped with more complex tools needing an important number of parameters as input, rending the task of models calibration even more difficult. In this paper, PEST, Parameter ESTimation (Doherty, 2005) software is combined with SRH-2D (Lai Y. G., 2008), a two-dimensional hydraulic and sediment model for river systems, to develop an automatic calibration tool. PEST is specifically designed for automatic calibration of numerical models. It requires “field observations” on which the optimisation process is based. PEST then takes control of the model and runs it multiple times until it finds the set of parameters for which the difference between observations generated by the model and “field observations” is at a minimum. A 15 km river reach is used to demonstrate the capabilities of the new developed tool with regard to finding the best Manning’s coefficients. The results are encouraging to extend the capabilities of this tool to perform automatic calibration for other parameters such as the best sediment transport equation or the active layer thickness to be used. CSCE2015-16 Presented in Session 4C: URBAN FLOOD RISK MANAGEMENT AND ADAPTATION Determining the Optimal Time Delay Embedding Parameters of Urban Water Supply System Signals John Quilty The concept of representing water resources time series as chaotic systems has gained popularity in recent years. However, the problem of determining the optimal time delay embedding parameters (m,τ) of such a time series is still an open problem. Generally, one must decide whether to apply a uniform or non-uniform embedding strategy for a given time series, and then follow a principled routine for choosing m and τ. This study applies instances of both uniform and non-uniform embedding strategies to urban water supply system signals for isolating the optimal time delay embedding parameters. Afterwards, a new machine learning technique, Extreme Learning Machines, is used to identify the most important time delay embedding lags of each signal by studying the relationship between one-step prediction error and each time delay’s contribution to the prediction. The uniform time delay embedding strategy is based on the entropy ratio (ER) method while the non-uniform counterpart is based on the local constant modeling (LCM) scheme. We test each of the time delay embedding strategies for their abilities to provide an optimal time lag space by testing their one-step prediction. This study utilizes production and demand time series from the urban water supply system in Ottawa, Ontario, Canada to identify the most appropriate strategy for deriving an optimal time lag space. The methods introduced in this study may be used to reconstruct the dynamics and provide a preliminary step to building time series forecasts for a variety of urban water supply system signals. The results of this study indicate that the LCM method be preferred for determining the optimal time delay embedding of the urban water supply system signals examined in this work. 24 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-17 Sorted by abstract number Presented in Session 6B: SUSTAINABLE WATER RESOURCES MANAGEMENT Improved Knowledge-Based Cooperative Particle Swarm Optimization for Optimal Reservoir Flood Control Operation Benyou Jia Heuristics based algorithms, with parallel and efficient global search ability, offer some advantages in solving reservoir operation problems. A knowledge-based cooperative particle swarm optimization (KCPSO) is a novel hybrid algorithm, with clear structure, high stability, and some limitations. In this paper, a relative difference definition, instead of absolute difference definition, is introduced for swarm search capacity in order to enhance the usability of the algorithm. The time-varying threshold factor (TVTF) is used to replace the standard algorithm constant threshold factor. The use of time-varying threshold factor can effectively balance local, cooperative and global search behavior in each evolution period, and therefore increase the convergence rate of the optimal solution. The new algorithm, KCPSO is applied to optimal flood control operation of the Nianyushan Reservoir on the Guan River (Henan Province, China). The performance of new algorithm is verified by its comparison with classical particle swarm optimization (PSO) algorithms. The comparison results are evaluated using mean and variance indicators. The comparison of optimization results shows that the KCPSO algorithm (a) results in a smaller mean and variance of reservoir peak outflow, (b) has a higher accuracy and numerical stability, and (c) shows smaller mean fluctuation of the outflow hydrograph. Therefore, the improved algorithm presented in this paper has a potential for improving the flood control reservoir operations. CSCE2015-18 Presented in Session 1C: COASTAL HYDRAULICS Recovery of Concave Shoreline Induced By the 2011 Tohoku Tsunami Hitoshi Tanaka The 2011 tsunami flushed sand spit at the Nanakita River mouth, Sendai Coast, Miyagi Prefecture. It also caused severe erosion of sand barrier which is adjacent to the left side of the river mouth. These damages formed concave shoreline at this area after the tsunami. The morphological recovery of this area is presented through analysis of aerial photography. A new analytical solution of oneline model, which describes the evolution of shoreline of concave landform bounded by rigid boundaries, has been introduced. Good agreement between measured shoreline positions and simulated results is also obtained. CSCE2015-19 Presented in Session 6D: FLUVIAL HYDRAULICS 2 Computational Modeling of Thermally Stratified Reservoirs Upstream of Hydropower Facilities Mathew Langford Deep lakes and reservoirs in northern climates, such as Canada’s have a dimictic stratification cycle. This results in the waterbodies “turning over” twice over the course of the year. Generally reservoirs will be isothermal during the winter and spring and stratification will develop in later summer and fall. An ideal reservoir’s stratification profile will have three distinct layers: a well-mixed epilimnion near the water surface, a relatively distinct thermocline or metalimnion, and a cooler isothermal hypolimnion below this. Some reservoirs can be approximated by a distinct two-layer stratification temperature vs. depth relationship, with a sharp temperature change at the thermocline, however this is not the case for all reservoirs. The temperature and depth of the epilimnion are controlled by the amount of solar insolation from the sun as well as the strength of surficial wind mixing. A lack of wind mixing can result in a less distinct or more gradual thermal profile that is hyperbolic. The vertical density distribution of a thermally stratified reservoir may limit the elevation at which water is withdrawn at hydropower facilities which can result in drawing the thermocline down resulting in a linear thermal profile. This linear thermal profile has distinct impacts on the flow field developed upstream of intake structures. In this paper, a computational fluid dynamic model was constructed using the Reynolds Averaged Navier Stokes equations and κ-ε turbulence model to assess the impact of thermal profile on the characteristics of the intake-induced flow field at Mica Dam, and Revelstoke Dam. The model is validated against a field ADCP study that was completed for the thermal profile of the upstream reservoir at the time of the measurements. In addition to the field-measured thermal profile, the model is used to evaluate the impact of varying thermal profiles including distinct two-layer, hyperbolic, linear and isothermal profiles as well as the water depth on the upstream flow field. The results of the study are generalized for application at other facilities. 25 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-20 Sorted by abstract number Presented in Session 5D: GREEN INFRASTRUCTURE DESIGN AND LAND USE CHANGES The Effect of Sand Grain Size on the Development of Cyanobacterial Biocrusts Offer Rozenstein Biocrusts are critical components of desert ecosystems, significantly modifying the surfaces they occupy. Although the presence of fine soil particles is known to be conducive to biocrust development and recovery from disturbance, their influence on the inceptive development of biocrusts has not been empirically studied. In this study, the effect of substrate granulometry on the development of biocrusts was explored, under controlled laboratory conditions of light, soil humidity, and temperature. A cyanobacterial inoculum of Microcoleus Vaginatus was applied to five sand fractions in the range of 1 - 2000 µm. The results showed that the biocrusts developed more rapidly on the fine fraction (<125 µm) than on the coarser fractions. While the biocrust cover on the fine fraction was spatially homogenous, it was patchy and discontinuous on the coarse fractions. The difference in the pore size between the different fractions is suggested to be the reason for these discrepancies in biocrust development, since large pores between the particles of coarse soil restrict and regulate the filaments’ spreading. It was found that the spectroscopic indices, the Normalized Difference Vegetation Index and the Brightness Index, were more sensitive to the biocrust development than the bio-physiological parameters of the biocrusts (polysaccharides, protein, and chlorophyll contents). The faster biocrust development on the fine fractions can explain various biophysical phenomena in aeolian environments. CSCE2015-21 Presented in Session 6A: HYDRAULIC STRUCTURE MODELING AND DESIGN Physical Modeling and Design Optimizations for President Kennedy Terminal, Brazil Scott Baker This paper discusses two 3D physical hydraulic model studies conducted in support of the design for a new iron ore exporting terminal located offshore of Espírito Santo, Brazil. The proposed terminal consists of a 5km long trestle, an iron ore export berth, an offshore berm breakwater, and a dredged access channel. The first model study was conducted to study wave agitation and moored vessel motion in order to estimate berth availability (downtime) for the new port, optimize and verify the breakwater length, and evaluate a softer mooring system. A 1:70 scale model of the surrounding bathymetry and preliminary terminal layout was constructed, and then modified to simulate several alternative layouts. The second model study was conducted to verify and optimize the breakwater design, which was devised as a dynamically stable berm breakwater featuring two roundheads, three straight trunk sections, and two bends. The breakwater stability study was performed in two stages (quasi3D and fully-3D) at a scale of 1:40. The stability of the berm breakwater and the changes in breakwater profile shape under various storm intensities were analyzed in detail, and many optimizations to improve the breakwater performance, constructability, and cost effectiveness were investigated and assessed. CSCE2015-23 Presented in Session 5C: DAM BREACH AND LANDSLIDE Modeling and Simulation of Tailings Dam Breaches using SPH Atilla Zsaki Failure of tailings dams often results in the release of substantial amounts of tailings into the environment, causing considerable damage. The flow of tailings presents a complex modeling challenge due to the free-surface flow and large deformations involved, often intractable by conventional finite element or finite difference methods. A mesh-free formulation, based on Smoothed Particle Hydrodynamics (SPH), was utilized to back-analyse documented tailings dam failures. As with any numerical model, the calibration of model parameters to corresponding physical quantities is a requirement prior to any application of the model. Since model parameters, such the roughness of terrain, are hard to quantify, a simple experimental setup of a flume flow was modelled to calibrate the SPH model. In this paper, the calibrated model was applied to a literature-reported tailings dam failure. The outflow of tailings interacting with the terrain resulted in considerably good agreement between the simulation results and the reported case, enabling use of the modelling approach to assess the potential damage cause by tailings dam breaches and predict flow paths of tailings. 26 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-26 Sorted by abstract number Presented in Session 1B: ADAPTIVE WATER MANAGEMENT IN A CHANGING CLIMATE Perceptions of Environmental Flows and Ecological Restoration – A Document Analysis Kate Reilly Environmental flows involve restoring a river’s natural flow regime to protect instream ecosystems. Implementation requires restricting water withdrawals, changing dam operations or removing dams altogether, all of which often affect human activities. Finding a balance between society’s and ecosystems’ needs for water is often challenging, and opposition from stakeholders frequently prevents environmental flow implementation. Drivers of this opposition are little understood, although perceptions that human needs are being sacrificed for ecosystems may contribute. This study used frame analysis, where a frame defines how a person views an issue based on their past knowledge and experiences, to explore those perceptions. The aim was to explore stakeholders’ frames of an environmental flow policy, ecosystems and ecosystem restoration to begin to understand disputes around the policy. The study focused on the Mactaquac Dam on the St John River, New Brunswick. Dam removal is being considered as one of three options for the end of its current life, which would address ecosystem damage caused by changes in downstream flow. Qualitative analysis of online documents was used to explore stakeholders' perceptions of the dam removal. Relevant documents, such as news articles and blogs, were identified using periodic keyword searches in Google. Texts that stated the writer’s position on dam removal were analysed. Concern for ecosystems was common and was used to argue for both dam removal and dam retention. The ecosystems that have developed since dam construction were frequently described as 'natural' and deserving of protection by retaining the dam, a short-term view of ecological restoration favoured over the longer-term restoration process involved in dam removal. Anglers were more in favour of dam removal due to its benefits for Atlantic salmon. Other issues of concern included the need to maintain the dam for its cheap and reliable energy and a desire for a free-flowing river. CSCE2015-27 Presented in Session 1B: ADAPTIVE WATER MANAGEMENT IN A CHANGING CLIMATE Environmental Flow and the Economy in the Bow River Basin: Investigating Tradeoffs through a Hydroeconomic Model Jordan Gonda The Bow River Basin (BRB), located in Southern Alberta and passing through Calgary, is a heavily allocated basin. As of 2010 over 60% of river flow has been allocated, mainly for irrigation and hydropower. Not only is water required for hydropower generation, agriculture and municipal water uses, but fish species and riparian vegetation depend on adequate river flows. This creates the challenge of maximizing economic benefits while still supporting environmental flows. These two contrasting requirements- economy and environment- are analyzed using the integrated water resources and decision support model SWAMP. Through altering hydropower release and evaluating alternative strategies for environmental flow, the conflict is investigated in an integrated manner. Simulations show that just altering TransAlta hydropower release from the headwaters can be a viable option. Here, the economy is minimally affected while environmental deficits are reduced. Both altering hydropower release in addition to allowing an environmental license is most effective at mitigating environmental deficits, but diminishes from the overall economic benefits, which currently exclude any formal inclusion of environmental goods and services. This study illustrates the use of an integrated decision supported model to examine water conflicts. CSCE2015-28 Presented in Session 1B: ADAPTIVE WATER MANAGEMENT IN A CHANGING CLIMATE Integrated Water Resource Management under Water Supply and Irrigation Development Uncertainty Elmira Hassanzadeh The Saskatchewan River Basin (SaskRB) in Saskatchewan, Canada, supports municipal, industrial, irrigated agricultural, hydropower, and environmental water demands. Proposals for future development include significantly increased irrigation agriculture, but they have not yet integrated water supply uncertainties into their water resources management analysis. The purpose of this paper is to stochastically generate flows at the Alberta/Saskatchewan border using a feasible range of shifts in annual volume and peak timing of headwater flows. This envelope of variation, including 30,800 flow realizations is combined with varying levels of irrigation expansion areas to produce future scenarios of resource development and water availability. The results show that the level of irrigation development, as well as variation in volume and peak timing of flows, affect water availability, vulnerability of shortage, and economic productivity of the water resources system. The effect of large irrigation expansion, combined with a reduction in the volume of flows and earlier timing of the annual peak substantially stresses the water resources system, produces unstable net revenues, and decreases flood frequency in the Saskatchewan River Delta, a region of high biodiversity and environmental significance and home to First Nations people who subsist on the Delta for hunting, fishing, and farming. 27 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-29 Sorted by abstract number Presented in Session 2A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 2 Probable Maximum Flood under Changing Climate Conditions for the Mattagami River Basin JOHN PERDIKARIS For dams whose failure may cause significant loss of life and/or economic losses the Probable Maximum Precipitation (PMP) and the Probable Maximum Flood (PMF) are two criteria used in their safety risk analyses. The PMF is the flood generated by the most severe precipitation event possible for a basin during a specific time of year, referred to as the PMP. Analysis of the observed climate records and future climate model projections indicate that the occurrence and frequency of extreme precipitation events is increasing. The most critical PMFs for the Mattagami River basin result from a combination of the spring PMP, 100-year maximum snowpack and critical melt temperature sequence. The focus of this study will be to assess the sensitivity of the PMF to projected changes in the above three meteorological parameters, obtained through the analysis of an ensemble of Regional Climate Model simulations (comparing future vs. present climate encompassing the 2041-2070 vs. 1971-2000 periods). Four separate scenarios were developed and applied to the Mattagami River basin to assess the impact of projected changes in meteorological parameters to the resulting PMF: present climate conditions (reference parameters for PMP, 100-year maximum snowpack and critical temperature sequence); projected changes in spring PMP; projected changes in both spring PMP and 100-year maximum snowpack; and projected changes in spring PMP, 100-year maximum snowpack and critical temperature sequence. The following hydrograph parameters of the PMF were evaluated as part of the sensitivity analysis including: runoff volumes and peak discharge flows. The methodology used to generate the PMF and the sensitivity analysis is presented, along with results, and a short discussion on potential adaptation options. CSCE2015-30 Presented in Session 1C: COASTAL HYDRAULICS An Experimental Investigation of Bore-Induced Local Scour around a Circular Structure ALEXANDRA LAVICTOIRE This paper investigates scour around structures caused by supercritical hydraulic bores. In light of recent tsunamis and other natural disasters, a better understanding of the impacts of bore-like waves on structures is of great interest to both researchers and practicing engineers. The high velocity and the relatively short duration of such hydraulic bores cause a unique local scouring process. An experimental program has been developed at the Hydraulics Laboratory of the University of Ottawa to simulate the propagation of a hydraulic bore over a movable sediment bed placed around a pier-like structure. Measurements of water surface elevation, bore propagation velocity and scour distribution were recorded for various bore heights and sediment types. Analysis of these measurements attempts to investigate the correlation between the bore depth, flow velocity and temporal and spatial development of the local scour. Results indicate that the correlation between the bore depth and bore propagation velocity closely follows the relationship suggested by the formulas of FEMA P646. Final scour bed elevations indicated that scour depth was highly dependent on the bore velocity. The scour depth ratios suggested in current design guidelines were significantly lower than those obtained in this study. This novel research provides first hand observations and measurements of scour caused by supercritical hydraulic bores. CSCE2015-31 Presented in Session 5D: GREEN INFRASTRUCTURE DESIGN AND LAND USE CHANGES Using Regional Data Exploration to Improve Understanding of Local Hydrologic Parameters: Three Practical Cases in Canada, Mexico and Turkey Victor Muñoz Regional data exploration is a useful hydrologic tool important in understanding trends and hydrologic parameters. Using local data only can lead to error when interpreting results. Traditional data compilation for regional hydrologic analyses can consume a significant amount of time and money due to lengthy accessing time, data selection, data processing and the generation of regional trends. New tools are available that can significantly reduce the computation time and cost of regional analyses. The statistical language R can create shortcuts for accessing and analyzing meteorological and hydrometric data. ArcGIS Spatial Analyst contains geostatistical tools that can be used to generate visual aids based on measured data points which can then be presented within regional topography. Three applications of these tools within regional data analyses in Canada, Mexico, and Turkey are presented to demonstrate their importance for developing more reliable local hydrologic parameters. In each case, it was found that performing regional data exploration using the numerical and geostatistical tools discussed above resulted in significant improvements in estimating local hydrologic parameters. The purpose of this paper is to define a procedure for implementing these tools in regional and local analyses to obtain faster and more enhanced hydrologic results. 28 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-32 Sorted by abstract number Presented in Session 4A: CLIMATE CHANGE IMPACTS AND ADAPTATION 2 Decision-Making under Climate Uncertainty in the Hydroelectric Sector David Huard Large infrastructure investments in the hydroelectric sector are planned decades in advance and their economic returns evaluated over periods ranging up to a century. Such long time spans and the sensitivity of hydroelectric productivity to climatic conditions make those investments especially sensitive to uncertainties in climate projections. However, there are very few known examples of hydroelectric investments using climate projections to assess their robustness to future climate conditions. One explanation may be that typical top-down climate scenarios prepared for impacts and adaptation studies do not give decision-makers the tools required to evaluate the climate risks, or opportunities, of a given project. Indeed, the large uncertainties around climate projections may be perceived as an obstacle to their use in investment planning or as an indication of climate science's immaturity. In collaboration with Hydro-Québec and Manitoba-Hydro, Ouranos is developing decision-making tools for two case studies in the hydroelectricity sector. These tools are based on the Robust Decision Making methodology and explore the sensitivity of different investment options to climate projection uncertainty. Both climate and economic uncertainties are included so that their respective effects on the performance of investment options may be compared. Although the cases studied here are simple conceptual versions of their real-life counterpart, the exercise illuminates how decision-makers can leverage the uncertain information from climate projections to identify robust solutions. CSCE2015-33 Presented in Session 6A: HYDRAULIC STRUCTURE MODELING AND DESIGN Abrasion of Concrete Hydraulic Structures Surfaces by Water-Borne Sand Mohammad Sabbir Hasan One of the main causes of deterioration in hydraulic structures is the abrasion-impact due to water borne sand on the concrete surface. This may limit their service life. It is not possible to prevent hydraulic structures from abrasion, erosion and impact completely; however, it is possible to reduce the effect of it by using proper repairing materials which can also increase the life span of the structures. The aim of this research is to investigate several types of repairing materials which can be used as the surface layer of hydraulic structures and protect the structure from abrasion. To simulate the real abrasion scenario of concrete, a method has been utilized where a high speed flow of water jet mixed with sand has been used to simulate the effect of abrasion as well as direct impact on concrete surface. The methodology has been used in this research to evaluate abrasion resistance is by mass loss and assessing the abraded surface profile and abrasion depth by using 3D scan technology and Matlab. The repairing materials used in this research are polymer modified concrete, high performance fast setting concrete and high performance synthetic fiber reinforced concrete. CSCE2015-35 Presented in Session 2A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 2 Climate Change Influenced Riverine Flooding and Sea Level Rise on Canada’s west coast Angela Peck More frequent flood events in British Columbia have recently sparked concern related to severe weather events in communities on the West coast of Canada. The low topography, estuarine environments, and dense urban populations which characterize many coastal cities make them vulnerable to both, ocean and riverine flooding. Many coastal cities have extensive networks of dikes, seawalls and other flood protection infrastructure to reduce exposure to flood hazards. However, as the climate is changing, so are the magnitudes and patterns of extreme weather events and most coastal cities can expect an increase in sea level rise and frequency and magnitude of extreme precipitation events in the future. Existing flood protection infrastructure in coastal cities has often been designed to specifications based on historical observations over short periods of time; therefore this infrastructure may no longer provide adequate levels of flood protection. This means there is a gap between current levels of protection and levels sufficient to accommodate climate change and other events exceeding historic observations. A methodology for incorporating climate change projections into flood inundation and sea level rise mapping is discussed for the Metro Vancouver region of British Columbia. While the methods and software used in the hydrologic and hydraulic river modeling are not novel, the incorporation of potential climate change impacts is unique for this region. Flood inundation maps are created in a geographic information system (GIS) environment which provides spatial extent and depth for a set of potential future flood scenarios. These maps are combined with coastal sea level rise estimations to present a more complete picture of potential future flooding extremes and their spatiotemporal impacts. These maps can be used to help assess future flood risks and assist in both short- and long-term climate change adaptation and disaster preparedness. 29 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-36 Sorted by abstract number Presented in Session 1C: COASTAL HYDRAULICS Optimal Use of Delft 3D Software for Wave Induced Erosion Guillaume Lamothe The erosion on the beaches of the St-Lawrence Gulf is threatening nearshore infrastructures. The reduction of the ice cover in the Gulf let the beaches more vulnerable to winter storm. This paper presents a numerical model able to represent and predict the sediment transport caused by waves using Delft 3D software, 2D/3D modelling suite for coastal and river simulation. The characterisation of the beaches and the principal transport phenomena, the possibility offered by Delft 3D and some sensitivity analysis are presented. The sediment transport is mainly created by the energy released by breaking waves. In order to get a simulation that represents the observation, the simulation must be done by coupling the hydrodynamic, the wave and the morphological models. Once the data are well represented, it’s possible to start the simulation. The problem at this point is that the computational time is approximately a month. This paper present a way to optimize the simulation time using Delft 3D. Delft 3D doesn’t run parallel simulation, but if the domains are build using the domain decomposition function, each domain will be computed on a different processor, so the user may optimize the simulation. This is the first way to reduce simulation time. The second way to reduce the computational time, valuable for morphologic simulation only, is using the Morphological Factor (MORFAC). The MORFAC is an erosion and sedimentation acceleration factor. In each time step the volume of sand transport by the water is multiplied by MORFAC. A value of MORFAC too high creates unrealistic erosion and sedimentation pattern. Using post processing tools it’s possible to find the fastest simulation that creates realistic results. The calibration process can start once the simulation time is optimized. CSCE2015-38 Presented in Session 5B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 2 Hydrodynamic Modelling of Intakes for Run-Of-River Hydroelectric Projects Violeta Martin Run-of-river, diversion-type hydroelectric projects on steep mountainous streams create changes in environmental conditions, including modified hydraulic and sediment transport conditions in the headpond upstream of the flow diversion intake and in the diversion section of the stream between the intake and the tailrace. These types of changes can lead to environmental and operational challenges that require careful consideration at the project design stage in order to achieve a successful, sustainable project. Hydrodynamic modelling including two dimensional and Computational Fluid Dynamics (CFD) modelling were used to investigate the flow and sediment transport patterns through the headponds and intake structures of one existing and two proposed run-of-river hydroelectric projects located in coastal British Columbia. The intake structures consist of a concrete weir, a Coanda screen or an inflatable rubber weir, an intake facility with conveyance to the penstock entrance, and sluicing facilities for flushing sediment from the headpond. This paper reviews the relevant environmental, engineering and modeling issues for each project and discusses how results from these numerical modelling tools were used in finetuning the intake designs. CSCE2015-39 Presented in Session 1C: COASTAL HYDRAULICS An Efficient Use of a Physical Model to Verify the Performance of Coastal Structures at Two Harbours in Oman Paul Knox In 2013, The National Research Council of Canada’s Ocean, Coastal and River Engineering portfolio (NRC-OCRE) was commissioned by Baird & Associates (Baird) to undertake physical model studies to assist in the detailed engineering design of coastal structures intended to help mitigate sedimentation and wave agitation issues at two different fishing harbours in Oman. The first site, Al Ashkharah Harbour, consists of an existing fishing harbour protected by a pair of breakwaters. Sediment deposition at the harbour entrance frequently leads to navigation issues and related dredging operations. Baird has designed a series of groynes, some of which extend off the existing breakwater, which will serve to control the sediment and decrease the frequency of dredging operations at the entrance. A physical model consisting of one groyne structure was designed to represent elements of several of the proposed groynes. The model was used to verify the hydraulic stability of the designs under severe storms. Extreme significant design waves can reach 11.8m (in deep water), and can come from a variety of directions since they are generated by tropical cyclones. The second site, Quriyat Harbour, is another fishing harbour protected by breakwaters. Here, wave energy passes through the entrance gap and creates agitation issues within the harbour basin. The solution proposed by Baird extends the southern breakwater and re-orienting the gap. The physical model is intended to verify the designs for this breakwater extension, and test the viability of different sizes of armour units under severe storms. The extreme significant design waves for this location can reach 9.7m (in deep water), again from a variety of directions since they are generated by cyclones. 30 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number This paper will discuss the use of an efficient and austere approach to a set of physical models investigating the stability and performance of the coastal structures at both of these sites. The modelling approach was to construct and test the Al Ashkharah groyne, remove the model structure, and then construct and test the Quriyat breakwater extension on a commonly designed bathymetry. The studies were conducted in NRC-OCRE’s Coastal Basin at an undistorted scale of 1:38.5 for the Al Ashkharah groyne, and 1:47 scale for the Quriyat breakwater. The stability tests were conducted with long-crested waves of varying intensities. The testing focused on verifying the hydraulic stability of the ACCROPODETM II armour units intended for the design at various locations on the structures. The interface between different size and types of concrete armour units as well as unique transition details in the structure alignment were also investigated in these studies. The paper will present and discuss the results of each model, and also show how this efficient modelling approach was able to verify preliminary designs at a low cost and expedited schedule. CSCE2015-41 Presented in Session 5C: DAM BREACH AND LANDSLIDE Numerical Simulation of Dam-Break Flows Using Depth-Averaged Hydrodynamic and Three-Dimensional CFD Models Daniel Robb This paper investigates the capability of three different numerical models to simulate sudden dam-break flows in the presence of an obstacle. The numerical results from a two-dimensional (2D) hydrodynamic depth-averaged model and two fully three-dimensional (3D) computational fluid dynamics (CFD) models are presented. The models selected for this study are: (1) the free and open-source code TELEMAC-2D, (2) the commercially-available CFD software package FLOW-3D, and (3) the free and open-source CFD code OpenFOAM. TELEMAC-2D is based on the solution of the shallow-water (Saint-Venant) equations, which neglect vertical velocities and accelerations. Both FLOW-3D and OpenFOAM are based on the solution of the Navier-Stokes equations along with the volume of fluid (VOF) method to track the location of the free surface at the air-water interface. The numerical results are compared to existing experimental data from two flume experiments conducted as part of the European IMPACT project. Flow conditions in both experiments are complex due to the presence of hydraulic jumps, reflecting waves, and wet-dry fronts. All three numerical models agree well with the water levels recorded in the experiments, especially for the triangular bottom sill case. The results from the depth-averaged model compare well with the experimental data and with the numerical results from the more sophisticated and computationally demanding 3D CFD models. The results from the CFD models show little improvement over those from the depthaveraged model, with the exception of one location in the vicinity of a moving hydraulic jump. CSCE2015-42 Presented in Session 6D: FLUVIAL HYDRAULICS 2 One-Dimensional Hydraulic Modeling on a Large and Complex Domain: Data Management and Model Setup Gaven Tang During the June 2013 flood in Calgary, Alberta, high flow velocities in the Bow and Elbow Rivers caused significant bank erosion and bed scouring at multiple locations. Areas of deposition also developed, resulting in the formation of large gravel bars. The results of an existing one-dimensional HEC-RAS model completed in 2012 were used during the 2013 flood for emergency response and evacuation planning purposes. To investigate how changes to the river morphology impact water levels of future floods, this model was updated based on post-flood survey data. Some of the challenges in updating the model included: handling and processing the large survey dataset, updating the geometry of the existing HEC-RAS model and updating the flow splits of the existing model to better reflect observed flow patterns during the 2013 flood. The survey dataset consisted of bathymetric survey points and land survey points (from LiDAR). The bathymetric survey included 1,077 cross-sections on the Bow and Elbow Rivers and their side channels, with an average spacing of 138 m on the Bow River and 29 m on the Elbow River. The total number of bathymetric points collected was approximately 183,000. A new automated procedure was developed for the anisotropic interpolation of the river bed between cross-sections in the flow direction. The LiDAR survey of land commissioned by The City yielded a point cloud with approximately 2.4 billion points and an average spacing of 0.02 m. Both data sets were combined to create a high resolution integrated digital elevation model (DEM) for updating the HEC-RAS cross-section geometries and inundation mapping. The updated HEC-RAS model consists of 717 cross-sections, 8 side channels, 63 bridges, 1 culvert, and 4 weirs. The results of the two models were compared to identify local and overall changes in water levels. 31 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-43 Sorted by abstract number Presented in Session 6C: SEDIMENT AND TRANSPORT MODELING Variation in River Bed Morphology and Sediment Transport Rates during Flood Events Etta H. Gunsolus Extreme precipitation events can alter the hydraulic and sediment regimes in rivers and streams. Such alterations can result in erosion hazards, damage to instream infrastructure and increased risk of flooding. Predicting the bed morphological response to flood events is challenging due to the complex relationship between hydraulics and sediment transport during periods of unsteady flow. The present research seeks to evaluate the relationship between bed morphological adjustments and sediment transport rates during flood events. Laboratory experimental runs were conducted in a 5.0 m-long, 0.31 m-wide sediment transport flume comprised of a well-sorted, medium sand with an average grain size of 0.36 mm. Hydrographs of varying magnitude and duration were generated to simulate flood events. The experimental hydrographs consisted of three experimental stages: antecedent conditions (base-flow), unsteady event (flood flow) and post-flood conditions (return to base-flow). Bed morphological measurements were conducted at the end of each stage and sediment transport rates were monitored throughout the experimental runs. The relationship between the transit bed load rate, bed morphology and measured transport rates during each stage of the flood event is assessed. CSCE2015-44 Presented in Session 4A: CLIMATE CHANGE IMPACTS AND ADAPTATION 2 Predicted Changes in Peace River Channel Morphology and Sediment Transport Related to the Site C Clean Energy Project Craig Nistor The Site C Clean Energy Project is a third dam and 1100 MW hydroelectric generating station on the Peace River in northeastern British Columbia, Canada. BC Hydro plans to start construction in the summer of 2015. This paper presents the predicted changes in channel morphology and suspended sediment dynamics during Project operations that were described in the Environmental Impact Statement (EIS) for the Project. The reservoir is predicted to trap 70% of the incoming sediment delivered from tributaries and from shoreline erosion induced around the reservoir perimeter. However, sediment deposition on the reservoir bed is predicted to reduce the initial reservoir volume by only 2.5% after 50 years. The mean annual suspended sediment load of the Peace River immediately downstream from the dam is predicted to be reduced by 54% compared to baseline conditions. Farther downstream at the Town of Peace River, Alberta, the predicted reduction in sediment load is only 2%, due to the large sediment inputs delivered to the Peace River by intervening tributaries. The Peace River has a cobble-gravel bed extending for several hundred kilometres downstream from the Site C dam site, and the sediment that will be trapped in the reservoir is much finer than the bed material in this section of the river. Long-term field observations indicate that the bed material in this part of the river is generally immobile due to flow regulation at the two existing dams, which has led to ongoing bed material aggradation at tributary confluences and vegetation encroachment on gravel bars. The Project will not change the flow regime of the river with respect to bedload transport competence, and so is not expected to cause any incremental change in channel morphology downstream from the Site C Dam under normal operating conditions. CSCE2015-46 Presented in Session 1A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 1 Changes in Heavy Rainstorm Characteristics with Time and Temperature Barry Palynchuk The effects of climate change upon extreme rainfall is evaluated, based upon the identificationof individual storms, and the changes in their statistical parameters and distributions. Those changes will be measured based upon historical time spans, and climatic temperature associated with the events. A brief review and comparison with other research is provided. CSCE2015-47 Presented in Session 5A: STRATEGIES FOR EFFICIENT WATER RESOURCES PLANNING Studying the Effect of Renaissance Dam on the Egyptian Water Budget AbdelhamidEl-Tahan The Grand Renaissance Dam, GRD or Millennium dam is an under construction project that lies in Ethiopia near its border with south Sudan. It is a gravity dam on the Ethiopian Blue Nile Basin River. According to the formal news, the main purpose of this dam is to generate the electrical power only so it reflects the Ethiopia intends to become the most African power country. And the Ethiopians defends their opinion regarding the negative effect of their dam on the water budget of Sudan countries and Egypt by simply mentioning that they do not depend on the river water in agricultural purposes due to the topography of their country and the plenty of rainfall. But according to different scenarios which will be studied in this paper, the downstream countries of the GRD face many problems. In the research project reported in this paper, we focus only on the drought period during the filling of the reservoir behind the dam which is estimated to be about 63 billion cubic meters of water by studying different scenarios of filling the reservoir after extracted the necessary variables using the digital elevation model and GIS data for the Ethiopian Blue Nile basin to evaluate the total water discharge and volume just behind the dam using the will know hydrological model, HEC-WMS. 32 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-50 Sorted by abstract number Presented in Session 5C: DAM BREACH AND LANDSLIDE Three-Dimensional Numerical Simulations of Subaerial Landslide Gerated Waves William Daley Clohan This research aims to advance the continuing effort of general purpose computational fluid dynamics model validation of subaerial landslide generated wave (SLGW) simulations. Specifically, using the weakly compressible open source Smooth Particle Hydrodynamics model, DualSPHysics, three-dimensional simulations are quantitatively compared against a combination of physical model data and traditional general-purpose computational fluid dynamics, Flow-3DTM, data. Many simulations were conducted to determine the effect of both numerical parametrization and numerical scheme prescriptions on SLGW accuracy. A systematic approach was taken to parse out insignificant physical processes using Flow-3DTM - specifically surface tension - and to determine the optimal numerical scheme settings that yield the most accurate results for both Flow-3DTM and DualSPHysics. From this research, it is found that DualSPHysics is able to accurately simulate both wave generation and wave propagation, but tends to over-predict the maximum wave run-up by about 70%. In contrast, Flow-3DTM was able to accurately simulate wave propagation, but under predicted wave generation by about 25% and over predicted the maximum wave run-up by about 40%. The question as to why both DualSPHysics and Flow-3DTM both over predict the maximum wave run-up during a SLGW simulation is still open. However, it is speculated that this due to a lack of either energy dissipation through physical air entrainment or resonance frequency consideration’s. CSCE2015-51 Presented in Session 3C: FLUVIAL HYDRAULICS 1 Evaluation of Existing Equations for Estimating Bank Erosion in Meandering Streams Mohsen Ebrahimi The objective of this paper is to evaluate existing equations for estimating bank erosion in meandering streams. As is well-known, such equations invariably relate the rate of bank erosion to shear stress or to flow velocity, and imply that the maximum bank erosion occurs either at the location of maximum bank shear stress or maximum near-bank velocity. The present analysis rests on laboratory experiments especially carried out by the authors at Queen’s University. The laboratory stream consisted of a sine-generated meandering channel having an initial deflection angle of 70° and a width of 0.80 m. The bed surface was immobilized; the trapezoidal banks were movable. In these experiments, the maximum bank erosion was found to occur between the locations of maximum velocity and maximum downstream velocity gradient. It is shown that, in spite of their widespread acceptance in the literature and in practice, the existing equations are not able to adequately predict the bank erosion observed in the case of the present laboratory experiments. This brings to light the lack of generality of the existing equations. The paper ends with a brief discussion of more realistic means of estimation of bank erosion. CSCE2015-53 Presented in Session 4C: URBAN FLOOD RISK MANAGEMENT AND ADAPTATION Design of a Novel Vortex Drop Structure for Large Stormwater Flows Genevieve Kenny Computational fluid dynamics (CFD) is becoming an increasingly popular design tool for civil engineering projects. This paper will present CFD use for the design of a vortex drop shaft for a new construction stormwater sewer located in Toronto, Ontario, Canada. A vortex inlet was required as a transition piece between a 2 metre by 2 metre concrete channel and a drop shaft with a height of 23 metres that feeds a stormwater conveyance tunnel which transports stormwater for treatment. The purpose of the vortex inlet was to direct the water into a swirl pattern, circling along the wall of the drop shaft preventing a “water fall” effect, where water would plummet to the base of the drop shaft causing erosion. Any erosion at the base of the drop shaft would negatively impact the operation of the flushing system, and therefore it was critical that the vortex inlet perform correctly. These unique design constraints including the need to minimize head loss for high storm event flows were such that the standard vortex drop design parameters based on the Iowa Institute of Hydraulics Research (IIHR) could not be applied in their entirety. While the vortex drop shaft was designed in accordance with the IIHR guidelines, conceptual design layouts were tested using hydraulic modeling with pilot scale models. Following the testing of the pilot scale models, a full scale CFD model was developed to verify the design. This CFD model was initially validated by comparing the results with the pilot scale model, and once validated, the CFD model was run at multiple flow rates to evaluate the performance of the vortex drop shaft. 33 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-54 Sorted by abstract number Presented in Session 4D: DECISION SUPPORT SYSTEMS Development and Operation of the Great Lakes Storm Surge Operational System Patrick Delaney Due to the size of the Great Lakes the communities located in low-lying regions along the shorelines are susceptible to short-term flooding events caused by storm surges. Severe storms with persistent high winds can dramatically change the water levels along the shoreline in a matter of hours, and this can be further exacerbated by large waves as well as backwater effects on tributaries to the lakes. Communities along the shores of Lakes Erie and St. Clair are particularly susceptible to flooding and storm damage with storm surges of up to 2.5 m being measured at the eastern end of Lake Erie. In response to this problem, the Ontario Ministry of Natural Resources’ Surface Water Monitoring Centre has developed the Great Lakes Storm Surge Operational System for generating accurate and reliable forecasts of water levels and wave heights for Ontario communities along the Great Lakes. The system automatically collects and displays real-time water levels and wave height measurements at selected locations on the Great Lakes along with wind and barometric pressure forecasts from Environment Canada. This information is then used to inform a series of hydrodynamic and wave models for Lake Ontario, Lake Erie, Lake St. Clair, Lake Huron and Lake Superior. The models and resulting forecasts are updated multiple times per day and the information is made available and disseminated to the Conservation Authorities responsible for flood warnings in these communities. Although there is nothing that can be done to prevent the storm surges from happening, the impacts to the communities have been mitigated by providing accurate forecasts and advanced warnings about storm surge events. CSCE2015-55 Presented in Session 4D: DECISION SUPPORT SYSTEMS Using detailed 2D Urban Floodplain Modelling to Inform Development Planning in Mississauga, ON Patrick Delaney The city of Mississauga has recently identified strategic growth areas where investments will be targeted for redevelopment and intensification projects. One of the growth areas has a history of flooding during major storm events. In order to redevelop this area, businesses and land owners need to prepare development proposals ensuring that appropriate flood proofing requirements have been achieved and emergency management plans have been prepared. Although the area had previously been included in an update to the regulatory floodplain mapping, the one-dimensional (1D) model that was used to map the floodplain was not capable of representing the complex overland flow within the study area. Therefore, the Toronto Region Conservation Authority determined that a more detailed two-dimensional (2D) hydraulic model was required to refine the floodplain mapping for this area. MIKE FLOOD was selected for the modelling because it couples a 1D channel flow model (MIKE 11) with a 2D overland flow model (MIKE 21). This approach was advantageous because it could leverage the existing 1D HEC-RAS model to prepare a MIKE 11 model for the 1D channel flow in Little Etobicoke Creek and then model the overland flooding using the 2D MIKE 21 model. This approach provided the ability to accurately represent the depths and velocities of flooding in the streets, on properties, and around buildings. The resultant model was used to run different storm events such as 5-year, 50-year, 350-year and regional flow for the existing condition where the flood wall and flood protection berm were included in the model. Similar models were also run for 350-year and regional flow events for the condition without flood wall and the berm in order to determine the current level of flood protection being provided, and to meet regulatory floodplain mapping requirements. The model is also being used to evaluate the effectiveness of the proposed flood proofing and flood mitigation plans. The updated flood constraint mapping will also provide guidance to local, regional and provincial government agencies as well as private sectors in managing and planning existing and future developments throughout the region. CSCE2015-58 Presented in Session 4C: URBAN FLOOD RISK MANAGEMENT AND ADAPTATION Flow Development and Retention Times in a Vortex-Type Storm Water Retention Pond Rocky Chowdhury Storm water retention ponds area widely used best management practice for improving the water quality of storm water runoff. Most of the retention ponds, constructed during the 1980’s and 1990’s, were designed for flow attenuation, as water quality was not taken as a major concern at the time. Although these ponds have been found to improve the quality of storm water runoff to some extent, they are subjected to a high degree of short-circuiting, the presence of dead zones, and short retention times. 34 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number This paper discusses hydraulic model development and testing of a new vortex-type retention pond that has been designed with careful consideration of the flow pattern in the pond for minimization of shortcircuiting and dead zones and improved removal of sediment. First, flow visualization using dye was conducted to determine the general flow pattern in the model as a means to estimate model dead space. Then tracer studies were carried out within the model under steady flow conditions to determine the time for the flow to fully develop and give consistent retention time results. The characteristic parameters for describing retention time are presented (e.g. baffle factor, Morrill dispersion index, etc.) as a function of flow development time. The results are thought to indicate the importance of considering flow development in the design and operation of the full-scale ponds, which typically operate under unsteady flow conditions. CSCE2015-60 Presented in Session 6C: SEDIMENT AND TRANSPORT MODELING Using Suspended Sediment Particle Size Distributions to Charactrize Sediment Transport on the Red River Masoud Goharrokhi Sediment transport processes are a complicated phenomenon and are important for many fields within river engineering. The key objective of this study was to assess the dominant mode of the sediment flux along a 10 km reach of the Red River in Winnipeg using measured suspended sediment size distributions and flow characteristics over the spring to fall period of 2013. Local and average shear velocity (u∗) was obtained by means of ADCP measurements under different turbulent flow conditions. Herein a combination of the Red River shear velocity and fall velocity of the individual particle size is employed to determine the maximum particle size potential per u∗ in bed transport and fully suspended transport modes. Water-sediment samples were collected at various depths and spanwise locations and at several cross sections along the reach during the study period, and were then measured using a Malvern Mastersizer 2000 instrument. Class sizes of suspended materials were compared with estimated particle entrainment values under varying flow conditions to determine the dominant mode of sediment transport. CSCE2015-61 Presented in Session 3A: CLIMATE CHANGE IMPACTS AND ADAPTATION 1 The Lake Champlain Haut-Richelieu Water System; Adaptation to Climate and Anthropogenic Changes Pierre Dupuis The 2011 Lake Champlain and Richelieu River flood affected about 3 000 homes in the Montérégie area and did for millions of dollars of damages in northern Vermont and New-York States. The Lake Champlain water level crested at an elevation never seen before. Most of the damages were south of the Saint-Jean-sur-Richelieu Rapids, a constriction in the Richelieu River that regulates the outflow from Lake Champlain and dictates the upstream water level variations. Previous flood events, in the beginning of the 1900’s, in the 40’s and in the 70’s lend to major studies, some conducted under the auspices of the International Joint Commission (IJC). The main objective was to identify mitigation solutions to this recurring problem. In fact, in the late 30’ Fryers Dam was built as part of a solution to help in managing water levels but the Second World War postponed completion of this project indefinitely. In this paper, an historical daily water levels time series, reconstituted from digital records and historical papers that covers more than 150 years is presented. This long time series helps in the evaluation of either wet-dry cycles and/or trends that could be explained in part by climate changes. Care was given to make sure that all data gathered from both U.S and Canada sources was corrected to a common datum of reference. From this series it is shown that a major upward shift in water levels occurred in the early 1970’ that had a significant impact on the wetlands flora and vegetation at that time. Changes were so drastic that it prompted major studies to be undertaken under the IJC auspices in the 70’s. Anthropogenic changes are also analyzed as they are a significant contributing factor to the hydraulic response of this basin. A main contributing factor is the Chambly Canal, constructed in the mid 1800’s for navigation purposes and exchange of good between Canada and the US. This canal extends in the natural river bed, creating a constriction of the flow. Widening of the canal in the first years or the 1970’s by almost 30 meters contributed to 50% of the upstream water table upward shift. This ratio can be estimated based stage-discharge relationships established from all stage-discharge measurements that cover periods prior to 1970 and later, from an inverse water balance hydrological model created specifically for this analysis and on the analysis of flow from the Hudson River water system. Observations are made about the necessity to perform exhaustive evaluation of all available data, the danger of not recognizing bad data or anthropogenic changes in the evaluation of climatic changes effects. Finally recommendations are made as to how to adapt to these changes to help manage the water resources in this region. 35 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-62 Presented in Session 3D: FLOOD HYDRAULICS AND HYDROLOGY Flood Inundation Maps Using Reduced Complexity Models Heather McGrath Complex computer models exist for computing flood hazard at a specific return period or to reproduce historic events. While technologically sophisticated, these programs are intended, first of all, for use by a small number of technical and scientific experts. As part of a more comprehensive flood risk assessment research program, this study aims to provide the capability to compute approximate flood inundation maps at any potential river stage. The intended audience is the non-expert public safety community, which combines flood hazard information together with the inventory of assets at risk and respective vulnerabilities to assess expected economic and social losses. The proposed framework will provide tools to run otherwise complex flood risk assessment scenarios with the ‘press of a button’ and to ensure informed emergency response and mitigation decisions. A number of simple methods for computing flood inundation maps will be created in a web-based mapping application. These methods will compute on-the-fly and display scenario inundation maps in an instant to the user. The following methods are proposed: (i) constant discharge by interpolation between precomputed flooded water surfaces (CADYRi), (ii) constant immersion depth (1D+), and (iii) constant horizontal flooded water surface (0D- models). These methods are assumed acceptable for small study areas with relatively uniform topography, usually representative of urban environment, whereas larger study areas should be divided into smaller portions depending of the hydrology and terrain characteristics. CSCE2015-65 Presented in Session 3B: HYDROINFORMATICS TOOLS L-Moments Based Novel Record-Extension Technique for Short Gauged Water Quality Parameters Bahaa Khalil Extension of hydrological or water quality records at short-gauged station using information from another longgauged station is termed “record extension”. The Ordinary least squares regression (OLS) is a traditional and commonly used record-extension technique. However, OLS is more appropriate for the substitution of scattered missing values but not for record-extension as the OLS provides extended records with underestimated variance. Underestimation of the extended records variability leads to underestimation of high percentiles and overestimation of low percentiles, given that the data is normally distributed. The maintenance of variance extension techniques (MOVE) have the advantage of maintaining the variance in the extended records. However the OLS and MOVE techniques are sensitive to the presence of outliers. Two new record-extension techniques were recently proposed with the advantage of being robust in the presence of outliers, the robust line of organic correlation (RLOC) and modified version of the Kendall-Theil Robust line (KTRL2). In this study a new robust technique is proposed. The new regression technique (LM-R) is a modified version of the RLOC and KTRL2, where the LM-R intercept is the one used for RLOC and KTRL2, while the slope is estimated based on the second L-moment. An empirical examination of the preservation of the characteristics of the water quality parameters was carried out using water quality records from the Nile Delta water quality monitoring network in Egypt. A comparison between six record-extension techniques (OLS, MOVE1, KTRL, KTRL2, RLOC and LM-R) was performed to examine the extended records for bias and standard error of the estimate of statistical moments and over the full range of percentiles. Results showed that the proposed LM-R technique outperforms other techniques by producing extended records that preserve variability as well as extreme percentiles. CSCE2015-66 Presented in Session 6B: SUSTAINABLE WATER RESOURCES MANAGEMENT Social Learning for Transboundary Water Resource Management in the St. Lawrence River Basin Alison Furber Meaningful participation of stakeholders in decision making is now widely recognised as a crucial element of effective water resource management, particularly with regards to adapting to climate and environmental change. Social learning is increasingly being cited as an important component of engagement if meaningful participation is to be achieved (e.g. Medema et al., 2014; Mostert et al., 2008). The exact definition of social learning is still a matter under debate (Reed et al., 2010), but is taken to be a process in which individuals experience a change in understanding that has a social dimension in that it is brought about by social interaction and is linked to wider communities of practice (ibid). Social learning has been identified as particularly important in transboundary contexts (Pahl-Worstl et al., 2004) where it is necessary to reframe problems from a local perspective to a basin wide one (Mostert et al., 2008). Social learning is explored in the context of transboundary water resource management in the St. Lawrence River Basin. The overarching goal is to identify and assess the effectiveness of current social learning practices within the basin. To achieve this end, in-depth interviews have been conducted with ten of the region’s water resource managers. Questions were designed to explore the relevance of social learning in the St. Lawrence River basin context, and to identify the practices currently employed which impact on social learning. While examples of social learning occurring have been identified, preliminary results suggest that these examples are exceptions rather than the rule, and that on the whole social learning is not occurring to its full potential. Further work is proposed to analyse the mechanisms that enabled the identified examples of social learning and those which create barriers in other cases. 36 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-68 Sorted by abstract number Presented in Session 4C: URBAN FLOOD RISK MANAGEMENT AND ADAPTATION Application of Gauge-Adjusted Weather Radar for Hydrology Jack McKee Radar has long been recognized to have immense potential in the field of hydrology, however, it is still not widely used for hydrological modeling due to several well-known errors and difficulty in managing and obtaining realtime data. Several techniques have been established to minimize these errors, including the adjustment of radar estimates based on ground observations from rain gauges. The success of individual adjustment techniques depends on several location-specific environmental and operational factors. Few studies have assessed the impact of applying gauge-adjustment techniques at the watershed-level using Environment Canada’s (EC) radar network in real-time. The goal of this study is to analyse the impact of well-known gauge-adjustment techniques on the accuracy of the final radar product using EC’s radar network, with a focus on the effect of the time-step of adjustment. Four gauge-adjustment techniques are analysed at five different time-steps of adjustments. Error was generally observed to decrease as the time-step increased. The decrease in error is attributed to spatio-temporal variations which tend to be prominent at smaller time-steps. Despite these errors, gauge-adjustment techniques provide significant improvement in accuracy at all time-steps and will result in more reliable hydrological modeling. CSCE2015-69 Presented in Session 6D: FLUVIAL HYDRAULICS 2 Evaluation of Hydraulic Zone Of Influence for Planktonic Entrainment at a Cooling Water Intake Structure in Lake Huron Jack Brand Cooling water intake structures (CWIS) at water usage industries draw large volumes of water from the surrounding aquatic environment and can result in the entrainment of ichthyoplankton from the water body. It is important to be able to accurately estimate CWIS entrainment rates from power plant operational, environmental assessment and fisheries perspectives. Rates of entrainment are known to be affected by hydrodynamic processes, yet, to date, there have been few studies investigating the spatial extent of influence of cooling water intake structures. This research seeks to characterize the hydraulic zone of influence of a CWIS operated by a nuclear generating station on Lake Huron. Hydrodynamic patterns were characterized with measurements strategically sampled around the intake structure by surface-deployed acoustic Doppler current profilers in 2013. Results indicate: 1) an inverse relationship between velocity and distance from the intake; 2) complex bathymetric effects on currents; and 3) a disruptive effect of CWIS discharge on surface velocity near the intake. The data reveal that the CWIS hydraulic zone of influence may extend up to a distance 250 m from the intake structure. The results are used to investigate the relationship between hydrodynamic patterns and the entrainment risk of Lake Whitefish (Coregonus clupeaformis) larvae in the source waters. CSCE2015-70 Presented in Session 3D: FLOOD HYDRAULICS AND HYDROLOGY Two-Dimensional Hydrodynamic Model Development for Complex Floodplain Studies Junying Qu With the development of computer hardware and numerical modeling software and the increase of computational power, numerical hydrodynamic modeling continues to be pushed to the limits. Where at one time it was not possible, nor common, complex two-dimensional (2D) shallow water modeling is becoming increasingly applied in the water resources engineering field. A significant challenge to past model studies, and as well today, is the accurate model representation of the passage of a major flood event over a large scale, complex and shallow flow floodplain. Within the floodplain the major rivers and the related tributaries, as well as, manmade infrastructure, including roads/railways, dikes, culverts, bridges, and man-made drains are of critical hydraulic importance to how flood flows are conveyed along the floodplain. This paper describes the development of a complex two dimensional model of the Red River floodplain in southern Manitoba. A critical component of the model development is the accurate representation of the physical domain with a computational mesh. The mesh design combined the advantages of both triangular mesh and quadrangular mesh to best represent the river channels and critical physical features of the floodplain, while at the same time minimizing the number of mesh elements, which minimizes the computational time and reduces the potential for model instabilities. The model complexity was compounded by the incorporation of road washouts that occur at the peak of a flood event. The model was calibrated and validated against a number of historical flood events and then successfully applied to assess the hydraulic conditions associated with the proposed raising of a section of a major highway from Winnipeg, Manitoba to the Pembina-Emerson Port of Entry. The model was also used to develop mitigation measures to ensure no measureable change to flood patterns or levels in the Red River Valley. 37 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-72 Sorted by abstract number Presented in Session 4D: DECISION SUPPORT SYSTEMS Converting Waste to Resources: A Decision-Support Model for Short-Rotation Coppice Systems Planning and Management Huy T. Nguyen Short-rotation coppice (SRC) plantations of willow or poplar are intended to be both environmentally friendly, permitting disposal of treated, nutrient-rich, domestic wastewater and biosolids, and economically viable, providing a sustainable source of wood fibre for biofuel and biochar production. These SRC systems are complex and involve interactions between numerous factors, including climate, wastewater and biosolids characteristics, soil chemistry and physical characteristics, woody crop establishment and growth, bioenergy, environmental regulations, and economics. A method is therefore required to identify and understand interactions and feedbacks between these various system components in order for decision makers to plan appropriately, maximize biomass end-uses, and optimize their investments. This paper describes the development of the “WISDOM” model, a new, comprehensive, decision-support model for short-rotation coppice (SRC) systems. WISDOM can be used to aid stakeholders and decision-makers in long-term planning for environmentally- and economically-sustainable SRC plantations. In terms of model performance, WISDOM produces good results. A variety of key SRC system components were simulated successfully based on eight years of Whitecourt, Alberta, historical data; for instance, the match between simulated and observed values was R2 = 0.98 for biomass production, R2 = 0.92 for tree height, and R2 = 0.90 for soil electrical conductivity. The model can be used to identify how alternative management decisions affect system behaviour through the development of “what-if” scenarios, with three climate scenarios run for Whitecourt SRC to predict biomass yields and irrigation requirements, and nine combined yield-harvest economic scenarios produced for a complete SRC life cycle of more than twenty years. These scenarios provide insights into the plantation and management of the Whitecourt site into the future. CSCE2015-73 Presented in Session 6A: HYDRAULIC STRUCTURE MODELING AND DESIGN Innovative Wave Analysis Approach For Decision-Making–Case Study: Mont-Louis Wharf Rehabilitation Justin McKibbon The Port of Mont-Louis is located on the south shore of the Gulf of St. Lawrence, roughly 120 km west of Gaspé, Québec. A 450 m long breakwater was constructed on the east side of the bay in 1955 to form a sheltered harbor basin and to serve as a commercial wharf. The structure has since been exposed to numerous severe storms that have caused considerable damage. Urgent repairs were thus required. Ten different wharf rehabilitation configurations were submitted for analysis. The objectives of this study were to evaluate the effect of the different rehabilitation options on long-term shoreline erosion inside the bay (comparative analysis) and evaluate how the new wharf configuration would affect harbor agitation conditions behind the Fishermen’s wharf, located on the west side of the bay. The proposed approach required the coupling of phase-averaged (SWAN-Delft3D) and phaseresolving (CGWAVE) wave transformation models, as well as the development of 4-D numerical solution-spaces, using in house hydroinformatics expertise, to recreate the nearshore wave climate and assess long-term wave stresses along the shoreline. Hourly wave height and water level time-series were produced for a 22 year period, at 60 cross-sections located around the bay. Total wave hours and wave energy attacking the shoreline were then compiled and graphed for each wharf rehabilitation configuration analysed. A similar protocol was used to characterise wave agitation conditions at each cell of a 5 m spaced grid overlaying the study area behind the Fishermen’s wharf. This study demonstrates how in-house software development can be used to meet specific client needs and support the decision-making process. The proposed approached was designed to post-process large amounts of modeling output, easily visualize and compare wave stresses and variability along the shoreline, identify low-erosion impact scenarios for the repair works and produce 2-D maps illustrating harbor oscillation conditions. CSCE2015-74 Presented in Session 4D: DECISION SUPPORT SYSTEMS 3D Hydraulic Modeling to Support Hydrotechnical Design and Decision-Making Process Nicolas Guillemette The understanding of water-structure interaction is a subject with important applications in the design of hydraulic structures, whether for dam and hydropower projects, municipal infrastructures, mining industry or various industrial purposes. 3D hydraulic modeling is recommended where local hydrodynamic behaviour is of prime interest, or where multiple water retaining structures are present (i.e. formed by many pipes, chambers, retaining walls causing the flow not to be unidirectional). Due to cost and time constraints, the use of physical models may not always be possible and computational Fluid Dynamics (CFD) modeling represents a very interesting alternative to support the design and decisionmaking processes. In this presentation, we provide some guidelines to identify the key parameters to be considered when using 3D modeling to support hydrotechnical design. Real-world case studies show how to take advantage of 3D outputs through Best Management Practices (BMP). We also explore some of the typical constraints and provide guidance for the development of the 3D geometry and mesh. Finally, we discuss how 3D models help us determine if a forecast is realistic and reliable, how to improve the effort to get buy-in from stakeholders and how to minimize risk by tackling the problem as explicitly as possible. 38 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-76 Sorted by abstract number Presented in Session 3C: FLUVIAL HYDRAULICS 1 Hydraulics of Repelling Groynes and Their Application to the Bow River After the June 2013 Flood Michael Bender There are many styles of river training structures within the spectrum of groynes or spurs. One of those styles is the use of short spurs or groynes that are angled downwards from the top of the bank and are pointed upstream. The arrangement creates eddies on both the upstream and downstream sides of the structure, and a mid-stream scour location away from the spur. In this way, the shape of the structure results in the river bank being protected by water flow patterns instead of rock, and protected during all river stages. This style of groyne is referred to as a repelling groyne. The characteristics of sloped-crested repelling groynes are not well documented by the literature. The paper will describe the hydraulic characteristics of this style of spur based on 2D modelling, and will present several examples that have been constructed along the Bow River in the City of Calgary after the June 2013 floods in Alberta. CSCE2015-77 Presented in Session 6B: SUSTAINABLE WATER RESOURCES MANAGEMENT CFD Modeling of a Large Intake Structure Bernando Majano A plant uses a large water intake (the Intake) from a bay for cooling large thermal turbines. The flow is in excess of 10 m3/s which is restricted by a permit to take water. Because the water is used for cooling, the required flow increases proportionally to the bay’s water temperature (i.e. higher Intake flows during summer, assuming same heat rejection load at the turbines). In the summer of 2013, plant staff noticed a temperature change in the Intake water temperature. The change in the influent water temperature was attributed to conditions created when a bulk carrier, under load and deep in draft, docked across the mouth of the Intake. It was theorized that the vessel’s deep draft created a condition where water was being drawn from a deeper zone of the bay, resulting in cooler, cooling water influent conditions. RVA was retained by the owner of the plant to further study the feasibility of constructing a baffle wall at the Intake. As part of the scope, RVA developed a CFD model of the intake with a baffle wall of variable depths. The model was used to determine temperature, velocity, and pressure distribution within the model. Various baffle wall depths were modeled in order to obtain the depth that obtains the coolest water temperature while keeping the water velocities and pressure drops within acceptable values. The present paper describes the engineering analysis and CFD modeling methodology used to study the problem and provide recommendations to the plant owner. CSCE2015-78 Presented in Session 6A: HYDRAULIC STRUCTURE MODELING AND DESIGN Romaine Hydroelectric Complex – Scale Model Optimization of the Hydraulic Structures Marc Villeneuve Hydro-Quebec Production obtained the necessary approvals to build a 1,550-MW hydroelectric complex on the Rivière Romaine, north of the municipality of Havre-Saint-Pierre on the north shore of the St. Lawrence. The complex will consist of four hydropower generating stations with average annual output of 8.0 TWh. Since 2009, Hydro-Quebec and Lasalle|NHC have been working together through scale model studies on the hydraulic optimization of the various components of the four projects. In spite of the development and growth of numerical modeling capabilities, physical (scale) modeling is still essential for the final optimization of large hydraulic structures. This paper first describes the general approach and goals involved in the comprehensive modeling of the projects, with simulation of the spillway, power intake and temporary diversion works. Specific results of the Romaine-1, Romaine-2 and Romaine-3 comprehensive models are presented with emphasis on power intake condition requirements and spillway energy dissipation. The local, larger scale models that were built to optimize the hydraulic structures used for instream flow requirements are also presented. These include the model for diversion gate operation during the initial filling of the RO-2 reservoir, the model for the high head outlets used during the second phase of filling, as well as the model of the spillway orifices used for permanent release of the instream flow. The issues raised by those studies include gate loads and vibration, cavitation, bedrock erodibility and the need for accurate discharge capacity curves. For each of these models, the specific modeling objectives and results are discussed, along with the model-prototype relationships and potential scale effects. 39 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-79 Sorted by abstract number Presented in Session 5D: GREEN INFRASTRUCTURE DESIGN AND LAND USE CHANGES Comprehensive Numerical Model of the St. Lawrence Estuary between Quebec City and Rimouski – Application to Hydrodynamics, Wave and Sediment Transport Catherine Denault In the last fifteen years, in the course of its R&D activities and studies performed for private and governmental clients, Lasalle|NHC has gradually developed a comprehensive numerical model of the St. Lawrence Estuary. The depth-averaged model developed using the MIKE 21 commercial package now covers nearly 300 km of the St. Lawrence River, from the Quebec Bridge to Pointe-au-Père (Rimouski). It integrates the most recent bathymetric data from the Canadian Hydrographic Service, as well as additional coastal surveys performed for specific projects. The modeling results have been validated by field measurements in various portions of the domain. With the modular architecture of MIKE 21, wave, sediment transport and pollutant dispersion processes can be coupled with the hydrodynamic modeling. The paper first describes the main steps of the model development, with emphasis on bathymetric data, definition of boundary conditions and model formulation, for which both the finite difference (structured grid) and finite volume (flexible mesh) versions of the model have been tested. Three specific case studies are presented: hydrodynamic modeling for the construction of a new ferry dock at Rivière-du-Loup, sediment transport by currents in the Isle-aux-Coudres reach and complete modeling of sediment transport and morphological changes under the influence of waves and tidal currents for an expansion project in the Port of Quebec City. The results outline the need for site-specific validation data and the inherent complexity of modeling hydrosedimentologic processes in the St. Lawrence Estuary. CSCE2015-80 Presented in Session 2A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 2 Estimation of Streamflows with Parametric Frequency Pairing Method Jasmine Kang For many water management related practices, long term stream flow and precipitation data are required to estimate design flow or storm events and their likelihood of reoccurrence. In practice, conducting these hydrological analyses becomes difficult for projects that are located in remote sites without long-standing meteorological records (e.g. 20-year precipitation/streamflow data), or with compromised records due to lack of maintenance. Recent studies have shown the advantages of using the Empirical Frequency Pairing (EFP) method to prepare synthetic long-standing data utilizing short-term data input (Butt, 2013). This method has invoked interest to statistically pair a project site’s data to long-standing records of gauged streams by using a distribution fitting method such as the Parametric Frequency Pairing (PFP) method (Millar, 2013). With this approach, stream flow records are fitted to a parametric statistical distribution function for both long-term weather stations and short-term project sites. A set of parameters associated to the specific distribution functions are estimated with the limited length of the project site’s record. This set of parameters allows the interpolation and extrapolation of random variables of different frequency probabilities. For various water resources design and planning purposes, stream flow with different frequencies of occurrence can be predicted using this approach. For example, estimation of stream flow rate with 50% probability of exceedance enables capacity calculations of small hydro power stations. In this study, the PFP method is applied to the flow records from six gauged streams in British Columbia that were used in Butt's EFP study (Butt, 2013). The simulated long-term data sets are then compared to the historical records to evaluate the PFP’s performance. CSCE2015-82 Presented in Session 4A: CLIMATE CHANGE IMPACTS AND ADAPTATION 2 Investigating Seasonal Modeling of Flow Series for Nashwaak River, NB, Canada Shabnam Mostofi Zadeh This paper presents the results of seasonal modeling of flow series for Nashwaak River in the province of New Brunswick, Canada. It is well known that hydrological phenomena tend to vary from one season to another. Knowledge about seasonal changes in magnitude of flows is critical as it is needed for the planning and design of water resources projects. Therefore it is important to be able to model these seasonal changes. This study investigates the application of two major families of seasonal models; Seasonal Autoregressive Integrated Moving Average (SARIMA) and Deseasonalized models for modeling seasonal data. The seasonal models were constructed based on 49 years of historical flows of Nashwaak River and separately applied to a set of monthly average streamflows. Extensive exploratory data analysis and comparative studies were performed on the data to determine the type and number of model parameters. The McLeod-Hipel Time Series package was employed for parameter estimation. It was found that the seasonal models are well constructed and passed the required diagnostic checks. These models were then utilized for forecasting future monthly average streamflows. Forecasting experiments were conducted for series of data that were not used in the model construction stage. It was concluded that these models produce comparable forecasts that are similar to available historical monthly average flows. 40 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-83 Sorted by abstract number Presented in Session 4A: CLIMATE CHANGE IMPACTS AND ADAPTATION 2 Analysis and Monitoring of Watercourses in Urban Environments for Sustainable Development and Adaptation to Climate Change – the Lorette River case study François Groux The increase in precipitation intensity and the frequency of extreme events, commonly associated with currently occurring climate change, creates new problems for already sensitive rivers flowing through urban areas. A detailed analysis of these types of watercourses and their connecting drainage networks, combined with instrumentation and real-time monitoring, provides managers the information required for targeted and efficient responses to the evolving flood problems (dynamics?). On May 31st, 2013, a severe thunderstorm occurred over the Lorette River’s watershed, resulting in more than 60 mm of rainfall in less than 3 hours. This event caused a flash flood affecting the river and its connecting drainage networks. This kind of flooding had never before been observed on this watershed which is rather well-known for its vulnerability to long rain periods typically associated with hurricane remnants. This event led managers to review their previously established work program for mitigating flood risks. This paper will show how the knowledge obtained from the studies carried out (including many surveys along with hydrologic and hydraulic modelling), coupled with real-time monitoring of precipitations and flows, enabled a rapid characterization of the May event and the development of an appropriate response for emergency works and the implementation of a contingency plan. CSCE2015-84 Presented in Session 2A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 2 Climate Change and Storm Surges in the Hudson and James Bays Alexandre Massé A common problem that afflicts coastal communities along the Hudson Bay and James Bay is the lack of reliable data on water levels, especially data on extreme water levels. The construction and maintenance of coastal infrastructures and the assessment of the risks related to marine flooding and coastal erosion are very difficult to achieve without this critical information. A recent study conducted by the consortium on climate change Ouranos and LaSalle|NHC¬ achieved important progress on the understanding and prediction of the development of tides and storm surges induced by variations of wind and pressures in the Hudson Bay area. The study first focused on the development and calibration of a reliable two-dimensional hydrodynamic numerical model, aimed at reconstituting the water levels in the entire Hudson Bay area over the last 30 years period, from wind and atmospheric pressure data fields issued from the NARR (North American Regional Reanalysis) model. Reliable statistics on extreme water levels for the actual climate were established. With the extensive data base of water levels over the last 30 years, the storminess in the Hudson Bay was also investigated to understand the atmospheric mechanisms that lead to the strongest storm surges, and to define the main characteristics of the critical storms. According to the CRCM (Canadian Regional Climate Model), climate change will modify the storms patterns in the future, which would lead to an increased number of critical storms in the Hudson Bay affecting the extreme water levels. A methodology to account for climate change is proposed. CSCE2015-85 Presented in Session 5C: DAM BREACH AND LANDSLIDE Probabilistic Method to Evaluate the Peak Outflow of Dam Failures by Overtopping Youssef Bentaiebi The peak breach outflow and temporal parameters of the breach are often required in risk assessment studies of dam failures. They ensue generally from a forecast of the behavior of the dam during its failure and from the final shape of the breach. This forecast is generally soiled by several sources of uncertainties resulting as much from hypotheses of modeling as by the choice of parameters which interfering in calculations. In this work, a physical model of computing the breach outflow of an earth embankment damaged by overtopping (ERODE), is exploited by the use of Monte Carlo simulations to predict effects of uncertainties of floods, water level and nominal diameter of the earth dam. Such an evaluation is important in risk and safety analysis of dams to avoid overestimation or understatement in decision-making. 41 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-86 Sorted by abstract number Presented in Session 3A: CLIMATE CHANGE IMPACTS AND ADAPTATION 1 Influences of ENSO, NAO, and PDO on Canada’s Monthly Streamflow: Trends and Variability Deasy Nalley The trends and variability in hydroclimatic time series (such as El-Niño Southern Oscillation (ENSO), North Atlantic Oscillation (NAO), and Pacific Decadal Oscillation (PDO)) are critical in examining the potential impacts of the changing climate on our precious water resources. In order to examine the effect of changing climate, this study aimed to assess the influence of ENSO, NAO, and PDO – which are considered important large-scale climate indices affecting Canada’s climate – on the trends and variability of streamflows in Canada. Monthly streamflow records from seven reference hydrometric basin network (RHBN) stations in Canada having a minimum of 40 years of continuous data were used in this study. Wavelet transform is a very useful mathematical technique for extracting time-frequency information from non-stationary hydrological time series (such as streamflow) and is used in this study in combination with non-parametric statistical tests. The Mann-Kendall trend test was used to identify the starting point of trends in monthly streamflow data, while continuous wavelet transform was used to quantify the main periodicities in the streamflow and the three climate indices. The relationships between streamflow and each of the climate indices were quantified at different time scales using wavelet coherence. While the starting points of trends in the streamflow time series varied among the studied stations, the continuous wavelet spectra consistently showed significant periodicities at the 6-month and 12-month time scales. The inter-annual influence was apparent at 2-6 years for ENSO and NAO, and up to 8 years for PDO. The influence of PDO was also apparent at time scales of 16 years or more (up to 32 years). Information provided by this study will be useful for improving hydrological forecasting capacity and for more efficient and effective water resources management in Canada. CSCE2015-87 Presented in Session 1A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 1 Investigation of the Impact of Climate Change on Flooding in the Red River Basin Peter Rasmussen In this presentation, we investigate the impact of climate change on the frequency of spring peak flows in the Red River basin. The most severe flood events of the Red River occur as a result of the spring snow melt. We employ a regression model to predict spring peak discharge from a set of predictor variables that include antecedent precipitation in the previous fall, winter snow accumulation, and spring precipitation. Data from the Coupled Model Intercomparison Project - Phase 5 (CMIP5) are used to project changes in the time series of predictor variables and this information in turn is used to derive flood distributions for future climate conditions. Most climate models predict increased precipitation during winter months but this trend toward larger snow packs is partly offset by a shorter snow accumulation period and higher winter evaporation rates. The means and medians of an ensemble of 16 climate models do not suggest a particular trend toward more or less frequent floods of the Red River. However, the ensemble range is quite large, highlighting the difficulties involved in estimating changes in extreme events. CSCE2015-89 Presented in Session 3B: HYDROINFORMATICS TOOLS Estimation of Mean Monthly Flows at Ungauged Locations in the Maritimes and Pacific Hydrologic Regions M. Naveed Khaliq A statistical approach, based on multiple regression (MR) and hydrological neighbourhood concept, is developed for estimating mean monthly flows (MMFs) at ungauged locations. For performing MR, 43 different catchment attributes, derived from geographical, climatological, land cover type and geological characteristics are considered. For the identification of hydrological neighbourhood, canonical correlation analysis (CCA) is used. The combined (CCA-MR) approach is first assessed through cross-validation tests across the Canadian hydrometric network from Water Survey of Canada and then applied to estimate mean monthly flows in two large hydrologic regions (i.e. Maritimes and Pacific) by defining all possible stream-networks and associated catchment attributes in a Geographical Information System environment. When assessed on the basis of normalized root mean square error or other similar criteria, the estimated MMFs appear to be reasonable for the ice-free May to September months and not so for the remaining months, particularly for the December to March period. Apart from freezing winter conditions and uncertainties associated with interpolated catchment attributes, the differences between the physical mechanisms responsible for runoff generation and lack of adequate nearest neighbours for smaller stream reaches could be among possible reasons. In spite of notable discrepancies for the winter season, the estimated flows will be useful for spatial mapping of monthly streamflow regime indicators and obtaining insights into surface flow conditions across the entire geographic space. 42 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-91 Sorted by abstract number Presented in Session 1D: TURBULENT MIXING AND ENTRAINMENT The Effect of a Turbulent Background on the Concentration Field of a High-Schmidt-Number Passive Scalar within a Turbulent Jet Susan Gaskin The final disposal of water borne pollution, after varying levels of treatment, is often as a turbulent jet into surface waters – lakes, rivers and oceans. Dilution by turbulent entrainment and mixing of the ambient fluid into the jet is relied on to minimize the toxic effects on the environment. The vast majority of studies of turbulent jets have considered quiescent backgrounds, assuming that neglecting the effect of external turbulence on turbulent jets is conservative. A study on a plane jet in a shallow co-flow indicated that the background turbulence field reduces the dilution in the near field. The present investigation complements a more detailed study of the effect of background turbulence on the velocity field of an axisymmetric turbulent jet by investigating the concentration field of a high-Schmidt-number passive scalar in the same jet. A quasi-homogeneous and isotropic, zero mean flow turbulent background was generated with a random jet array. The concentration field within the turbulent jet was measured using planar laser induced fluorescence. The evolution of the mean concentration field in the jet in background turbulence is compared to that of a jet in a quiescent background. The results show that the mean concentration decreases near the centreline when compared with that of the jet discharging into a quiescent background, whereas near the edges of the jet, higher values were measured. The jet half-width increases slightly compared to the quiescent background with downstream distance. These results are discussed in relation to earlier studies. CSCE2015-93 Presented in Session 6A: HYDRAULIC STRUCTURE MODELING AND DESIGN Design and Construction of a Ship ARREST BOOM AT Beauharnois Canal along the St Lawrence Seaway Navigation System Razek Abdelnour A unique Ship Arrest Boom was built in 2012, at the Beauharnois Canal near Montreal Quebec, to stop ships up to 35,000 tons and moving at a speed of 3.5 knots from impacting any of the 13 bridge piers supporting a 2 km long bridge built 500 m downstream. The design ship is the largest that can pass in the adjacent Beauharnois Lock along the St Lawrence Seaway Navigation. In addition to stopping ships, the system was designed to resist the Beauharnois Canal ice during its formation and its breakup without interfering with the existing ice boom system deployed every winter along the canal to monitor and control the ice in the canal. The system was also designed to minimize the headlosses caused by the system, which have reduced the head of the 1000 MW hydroelectric plant located 2 km downstream of the bridge. The Ship Arrest Boom consists of a barrier with ten spans. The barrier is held in place by 24 nylon ropes capable of stretching up to 40% before their failure at 100 tonnes. The ropes are fixed at the bottom of the canal to 13 rock anchors. Each span consists of a steel cable that connects to four rope anchors. The steel cable is retained on the water surface by buoys that consist of long cylinders shaped to provide the necessary buoyancy while letting the newly formed ice to move downstream. Numerical modeling of the ship retention system showed that the barrier is capable to reach a complete stop after about 100 m penetration distance. The paper describes the procedures followed for the design development, the numerical and risk analysis, the fabrication and installation of the system during the past 3 years in operation. CSCE2015-95 Presented in Session 1A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 1 Development of Regional Storm Frequency Maps for the Upper Yangtze River Basin and Its application to Assess Climate Change Jinhui Huang A framework named Precipitation Regional Extreme Mapping (PREM) consists of regional analysis, mapping methods and Student¡¯s t-test was proposed in this study. It uses a set of ground station data to investigate the spatial-temporal characteristics of precipitation for a study area. Due to the employment of student¡¯s t-test, it has the capability to assess presence/absence of climate change for extreme events. This framework was applied to the upper Yangtze River basin in China. This study confirms the homogeneous regions identified by Wang (2002) using a heterogeneity measure, where all three regions have heterogeneity less than 1.0. The distribution of PE3 (the Pearson type III distribution) was found to be acceptable for all three regions. Two indices, RMSE (root mean square error) and BIAS (mean bias), were used for accuracy characterizations for the extreme map and the results show that the extreme map can predict precipitation for ungauged regions with acceptable accuracy. Results indicate there have been no significant changes in maximum daily precipitation events over the past four decades, a finding that is valuable for the safe integrity planning of major hydraulic projects and the management and planning of water resources in the upper Yangtze River basin. 43 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-99 Sorted by abstract number Presented in Session 3A: CLIMATE CHANGE IMPACTS AND ADAPTATION 1 Modeling Impacts of Climate Change on Hydrologic Processes in Subsurface Drained Croplands Using an Agricultural System Model Zhiming Qi Using a calibrated and validated agricultural system model, Root Zone Water Quality Model (RZWQM2), the potential effects of climate change and elevated atmospheric CO2 concentrations (CO2) on evapotranspiration (ET), tile drainage volume, and crop production were assessed integrally for a subsurface drained corn-soybean rotation cropping system near Gilmore City, Iowa. Simulations were conducted with six different climate change scenarios for the period of 2045 to 2064, with CO2 rising from 369 to 548 ppm. Averaged across the scenarios, actual ET and potential ET increased from 44.2 cm to 45.0 cm and from 57.5 cm to 60.8 cm, respectively; tile drainage increased from 29.0 cm to 33.2 cm. Increased temperature and decreased relative humidity were found to enhance ET, overcoming the decreasing impact on ET of elevated CO2. The impacts of changes in precipitation, short wave radiation and wind speed on ET were small to negligible. Precipitation showed a strong positive correlation with drainage flow. This simulation suggested an increasing trend in subsurface drainage which may lead to more nitrate pollution from tile drains. CSCE2015-100 Presented in Session 5B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 2 Discharge Characteristics of Siphon Spillways Amruthur Ramamurthy This study deals with the discharge coefficient for siphon spillways based on the results of experimental methods and numerical simulations. Siphon spillways are used as the outlet in reservoirs to control the incoming flood flows. A scaled plexiglass model of a siphon was fabricated and tested in the laboratory flume to determine the siphon discharge coefficient over a range of Reynolds numbers. The RNG k-ε model was used to obtain the discharge coefficient of the siphon. The existing experimental results and the present test data were used to validate the model predictions. The agreement of the model with test data was reasonable. A properly validated model permits the evaluation of the siphon discharge coefficient for different flow configurations encountered in the field, without recourse to expensive experimental procedures. CSCE2015-102 Presented in Session 5B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 2 Nonlinear PLS Method for Side Weir Flows Amruthur Ramamurthy Side weirs are flow-regulating devices commonly encountered in hydraulic engineering. In the past, the discharge coefficient for flow past a side weir was investigated experimentally by many researchers. In this study, a modified discharge coefficient Cd for side weirs in rectangular channels is defined. The multivariable non-linear partial least square (PLS) method is used to determine the empirical equations relating Cd with the dimensionless weir parameters F1, S/Y1 and L/D. Compared to the previous studies, the procedures to calculate the discharge of the side weirs is simplified. The discharge predicted using the empirical equations based on the nonlinear PLS method is in good agreement with the measured discharge. The nonlinear PLS method can also be applied to many other hydraulic flow configurations characterized by a large number of variables. CSCE2015-103 Presented in Session 5B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 2 Simulation of Flow past an Open Channel Floor Slot Amruthur Ramamurthy In the past, solutions to the problem of flow past a floor slot in a rectangular open channel used to divert flow from one stream to another were obtained mainly on the basis of model tests or through the development of simplified theoretical expressions. In the present study, the free-surface turbulence model is applied to obtain the flow parameters such as pressure head distribution, velocity distribution, and water surface profile. The results of simulation are validated using the experimental data. The predictions of the proposed numerical model are validated using experimental data. For flow past an open-channel floor slot, a model that is properly validated can be used to predict the flow characteristics under slightly differing boundary conditions for the flow configurations encountered in the field, without resorting to expensive experimental procedures. 44 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-104 Presented in Session 4B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 1 V-shaped Multi-slit Weir Systems Amruthur Ramamurthy Weirs and notches are efficient devices for measuring flow rates. Banks of slit weirs forming multi-slit weirs allow both precise discharge measurements in a very large range of flow rates and also permit a good flow regulation. V-shaped weirs are traditionally used as precise laboratory flow measuring devices, especially in the low discharge ranges. In the study investigation, the method of images was used to form the V-shaped multi-slit weir system to allow measurement and regulation of flows in a large range of flows that includes very low flow rates. Experimental studies were conducted to determine the discharge coefficients of V-shaped multi-slit weirs over a wide range of weir Reynolds numbers. The study provided a single relation between the weir discharge coefficient and the weir Reynolds number for both the rectangular and V-shaped multi-slit weir systems. CSCE2015-105 Presented in Session 1D: TURBULENT MIXING AND ENTRAINMENT Measuring Reynolds Stresses in the Flow Field of Hydroclones Mustafa Al Kayed To measure velocity components using the laser Doppler anemometry (LDA) in a cylindrical surface, as in a hydrocyclone, traditionally, one encloses the top circular tube of the hydrocyclone with a flat surface box to minimize the refraction effects of laser beams caused by the curved solid walls. In this brief study, an alternative procedure is suggested to reorient the laser beams to measure the mean and fluctuation velocity components. Adopting the beam orientation suggested at a single point in the flow field the axial and circumferential mean velocity components, along with the corresponding turbulent normal and shear stress components can be determined. Test results confirm that the proposed method is valid to get data related to the mean velocities and the Reynolds stresses at a single point in the flow field of a hydrocyclone. The suggested procedure with slight modifications can be applied to measure velocities in the flow field formed by other circular surfaces, such as cones. CSCE2015-106 Presented in Session 5C: DAM BREACH AND LANDSLIDE Flow around Open Channel 90° Bends with Vanes Amruthur Ramamurthy Sharp open channel bends are commonly encountered in hydraulic engineering design. Disturbances such as secondary flows and flow separation caused by the bend may persist for considerable distances in the downstream channel. A simple way of reducing these disturbances is through the insertion of vertical vanes in the bend section. A Laser Doppler Anemometry (LDA) unit was used to measure the three-dimensional mean and turbulent velocity components of flow in an experimental rectangular open channel bend. Flow characteristics of the bend with no vane are compared with those of bends having 1 or 3 vertical vanes. The size of the flow separation zone at the inner wall of the bend was determined from dye visualization data and confirmed using the mean streamwise velocity data. Results show that the vertical vanes are effective in considerably reducing flow separation in the downstream channel. Furthermore, energy loss for bends with vanes is slightly less than for the no-vane case. CSCE2015-107 Presented in Session 4B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 1 Experimental Study of Wake Characteristics of Shallow Flow past Tandem Cylinders Mehdi Heidari Flow past multiple cylinders is a simple conceptual flow model that has potential applications used in engineering. Although flow passing a single circular cylinder has been widely addressed in literature, many interesting fluid phenomena occur when multiple cylinders are placed in a certain spatial orientation and the grouping effect of bodies is a relatively less explored subject in fluidstructure interactions. Studying the velocity field, turbulence parameters, shear layer and wake development have not received much attention, especially in shallow open channel flow. In this paper, the shallow open channel flow past two and three cylinders arranged in tandem configuration with different gap distances is experimentally investigated using particle image velocimetry (PIV). The wake region shaped by tandem cylinders in the shallow flow is studied in the horizontal field-of-view at middepth at low Reynolds number. The shallow flow effect in the near-wake region is studied in the form of velocity and turbulence profiles. Also effect of the gap between the cylinders on near-wake region is investigated. 45 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-109 Presented in: Session 3D: FLOOD HYDRAULICS AND HYDROLOGY 2D High Resolution River Flood Simulations in Urban Environment: Global Sensitivity Analysis for Spatial Ranking of Uncertain Parameters Morgan Abily High resolution (infra-metric) topographic data, such as LiDAR data and photogrammetric born 3D classified data, are becoming commonly available at large range of spatial extent, such as municipality or industrial site scale. This category of dataset is promising for high resolution (HR) Digital Elevation Model (DEM) generation, allowing description of fine above-ground structures which might influence overland flow hydrodynamic. Even though HR classified data are highly horizontally and vertically accurate (in a range of few centimeters), this data set is assorted of errors and uncertainties. Moreover, in order to optimize design and computation time of 2D Shallow Water Equations (SWE) based models, hydraulic modellers make choices regarding procedure for this type of dataset use. This study investigates on uncertainties related to HR topographic data use for 2D HR flood modelling. A Global Sensitivity Analysis (GSA) approach, allowing estimation of inputs parameter variance contribution to the model output variance is applied to a 2D SWE based river flood model. Two categories of uncertain parameters are considered: the first category is inherent to HR topographic data measurement errors and the second category is related to operator choices for this type of data insertion in 2D hydraulic codes. The study has been performed over the lower part of the Var river valley (Nice, France) using the estimated hydrograph of 1994 flood event. HR topographic data has been made available for the study area (17.5 km²), by Nice municipality. Three uncertain parameters were studied: the measurement error (var. E), the level of details of above-ground element representation in DEM (buildings, sidewalks, etc.) (var. S), and the spatial discretization resolution (grid cell size for regular mesh) (var. R). Combining these parameters, a database of 1,500 simulations was built using 400,000 CPU hours on a HPC. A random sampling on the produced result database has allowed to perform an uncertainty propagation through Monte-Carlo approach. GSA has allowed the production of Sobol index maps over the area of interest, enhancing the relative weight of each uncertain parameter on the variability of calculated overland flow. Results stress out and quantify the importance and spatial variation of uncertainty introduced by modeller choices (var.S and var.R). CSCE2015-110 Presented in Session 2D: LAKE HYDRAULICS Brackish Pit Lakes Approaching Fall Turnover Davood Hasanloo This study investigates the buoyancy fluxes and wind-driven turbulence in the hours leading up to fall turnover. In fresh water lakes, the stability, namely the work required to mix the entire water body to a uniform density, is dominated by temperature. As the surface of fresh water lakes cool in fall, their stability decreases, and fall turnover occurs when wind driven circulation is sufficient to overcome this stability. However, the water in mine pit lakes is often brackish, with a salinity of order of 1 kgm-3. In brackish lakes, vertical gradients in salinity can increase the stability and resist turnover. The contribution of salinity gradients to stability is affected by ice-melt, precipitation, runoff and evaporation. We examined scenarios with differing initial salinity stratification and differing ratios of runoff to evaporation to determine the conditions under which turnover is suppressed. Data from the Colomac Zone 2 pit lake, which is not subject to turnover, provides a framework for the investigation, and the model CE-QUAL-W2 is used to investigate conditions under which Zone 2 pit, or other pit lakes with similar intermediate salinity, might resist turnover in fall. CSCE2015-114 Presented in Session 4B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 1 Shear Instability in High-Speed Shallow Flows Shooka Karimpour The supercritical instability of high-speed shear flow in shallow waters is distinctly different from the subcritical instability for the discontinuity at the returning surfaces where the current speed is equal to the gravity-wave speed. Entrapment of wave energy between the returning surfaces and the occasional leakage of the energy are the processes in the supercritical instability that is not describable by the classical method that analyses the instability as an eigenvalue problem. In this paper, a fifth-order WENO spatial interpolation scheme is employed to capture the discontinuity in the direct numerical simulation based on the shallow-water equations. The time integration is accurate to the fourth order by the Runge-Kutta method. Calculations for supercritical instability have been carried out using progressively refined grid of 64, 128 and 256 cells per wave length in the longitudinal direction of the base flow to achieve the convergence of the numerical simulation to the true solution. The orders of the convergence are 4.78 and 3.79 for the supercritical flow with the convective Froude number of 1.2 and 1.4, respectively. 46 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-115 Presented in Session 4B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 1 Mixing in Shallow Waters in High Froude Number Shooka Karimpour The mixing of mass and momentum across the shear flow by the turbulence and waves is examined by direct numerical simulations using the shallow-water equations. The simulation starts with a small perturbation to an unstable shear flow. The development of the shear flow is examined as the shear flow is in transition to the turbulent motion. During the transition the energy level, flow pattern and the disturbance kinetic energy change rapidly. Shear layer growth rate reduces as flow discontinuities in the form of shock waves begin to occur in supercritical flow of high convective Froude numbers. To capture the flow discontinuities in the numerical simulations, the spatial interpolation over a staggered grid is performed by a fifth-order WENO scheme. A fourth-order RungeKutta method advances the calculations in time. Results are consistent with the analogous correlation of flow structure to the convective Mach number in gas dynamics. The orders of convergence are 3.09 and 3.39 for the simulation in the transcritical and supercritical flows of convective Froude numbers of 0.8 and 1.4, respectively. CSCE2015-116 Presented in Session 1D: TURBULENT MIXING AND ENTRAINMENT Experimental and Numerical Study of Thermal Buoyant Wall Jet in Calm Ambient Water Hassan Alfaifi The goal of this paper is to study some of mixing zone characteristics for the effluent of the industrial outfalls (e.g. desalination plants) on the near-field flow. Experimental and numerical studies of thermal buoyant wall jet discharged from submerged outfall into calm ambient water have been conducted. Two different low densimetric Froude numbers (Fd) (10 and 15) are used in both experimental and numerical modelling. Two different Reynoldsaveraged Navier-Stokes (RANS) turbulence models; Realizable k-ε and Launder-Reece-Rodi (LRR) are applied in this study. The comparison between laboratory and numerical results for cling length and jet trajectory as well as with existing experimental and numerical date are presented. In general, a good agreement is observed between the numerical and experimental cases examined here, for both Froude numbers. CSCE2015-117 Presented in Session 2D: LAKE HYDRAULICS Echosoundings in Base Mine Lake Edmund Tedford The Base Mine Lake (BML) program is the first commercial-scale demonstration of Water-Capped technology in the oil sands industry. The lake is located in the mined-out West In-Pit of the Syncrude Mildred Lake Operation. A pit was filled over a period of 17 years, and consists of a base of FFT (silt, clay, process-affected water and residual bitumen), capped with a combination of oil sands process-affected water (OPSW) and fresh water. Infrastructure has been installed to facilitate import and export of water during the summer as an analogue for natural flows in the future. Echosoundings are emerging as a critical technology in the study of aquatic systems. Preliminary data collected in the lake suggest echosoundings can be used to track gas bubbles and suspended solids and may provide novel information on poorly understood under-ice dynamics. The bubbles rising from the underlying FFT are of particular interest as they potentially represent a large component of gas flux. The bubbles are ubiquitous in the lake and, in addition to driving gas flux, may contribute to the vertical transport of heat and solids. We will present preliminary echosoundings and complimentary water temperature profiles from Base Mine Lake. CSCE2015-118 Presented in Session 4D: DECISION SUPPORT SYSTEMS Use of Groundwater Table Variation to Optimize the Design of Shallow and Deep Monitoring Well Networks James Leach This study investigates the use of seasonal variation in groundwater level for optimizing the design of monitoring well networks using Dual Entropy-Multiobjective Optimization (DEMO). The DEMO model has been demonstrated to be sufficiently robust for designing optimum hydrometric networks. The study was conducted using the Ontario Provincial Groundwater Monitoring Network wells in the Hamilton, Halton, and Credit Valley (Mississauga) regions of Ontario. The entropy functions in DEMO are used to identify the optimal trade-offs between the maximum possible information content in the data, and the minimum shared information between each of the existing and potential monitoring wells. Since the groundwater table varies by season, an additional design objective was used in DEMO to help capture and use the information associated with that seasonality. This design objective was used here to quantify the hydrological characteristics of the aquifers as well as the seasonal variability of the water level and thus provide more information for the network optimization. The importance of determining the applicability of using groundwater table variation as a design objective is driven by the needs of the end users of the wells. Shallow wells are generally used for irrigation purposes and deep wells for municipal water supply. Preliminary results show that including groundwater table variation as a design objective significantly increases the number of optimal networks and provides additional information for potential locations of new wells. These results also suggest that the shallow well network is more sensitive to the water table variations than the deep well network; however, overall it is worth it to include the additional objective in both cases. 47 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-121 Presented in Session 4B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 1 Undular Waves in Subcritical Flow over an Obstacle Gregory Lawrence Supercritical, but not strongly supercritical, open channel flow along a flat bed transitions to subcritical flow via the classic undular jump. Undular jumps will not occur if the flow is subcritical everywhere. However, if an underwater sill is placed into a subcritical flow, undular waves can appear downstream, even if the flow is subcritical everywhere. This paper investigates the physics behind the formation of the undular waves. Experiments to investigate how their wavelength and amplitude vary downstream as a function of Froude number were performed in a 6 m long, 15 cm wide open channel flume. The results of analytical and numerical models of the flow are compared. The wavelength of the undular waves is modeled accurately, but modeling the variation in amplitude still presents challenges. The analogy between this flow and Hawking radiation, the mechanism by which energy is thought to escape from black holes, will be discussed briefly. CSCE2015-122 Presented in Session 2D: LAKE HYDRAULICS Effects of Spectral Variation in the Attenuation Co-Efficient on the Heating of Lakes Yasmin Nassar We describe a situation - in clear lakes - where accounting for the wavelength dependence of the light attenuation coefficient results in the deeper penetration of light and, consequently, changes in the rate of heating at a given depth. In limnological models, ultra-violet (UV) and infra-red radiation (IR) are typically assumed to be absorbed at the surface, while photosynthetically active radiation (PAR) is distributed throughout the water column assuming a constant attenuation coefficient. This approach appears to have underestimated hypolimnetic warming in several studies. We hypothesize that these underestimates are due to UV penetrating into the hypolimnion, and/or the fact that the attenuation coefficient can vary dramatically within the PAR domain. We use data from three lakes of varying clarity (Crater Lake, Pavilion Lake and Lake Superior) to evaluate the importance of accounting for the spectral variation in attenuation coefficient. We start by comparing the subsurface distribution of irradiance modeled using a spectrally varying attenuation coefficient with that modeled using a constant attenuation coefficient. We then compare the rates of subsurface heating predicted by both approaches with field measurements from Pavilion Lake. CSCE2015-123 Presented in Session 2D: LAKE HYDRAULICS Under-Ice Circulation in Lakes Driven by Salt Exclusion Gregory Lawrence In lakes of low salinity, the importance of salt exclusion during ice formation is the subject of debate given the influence of other processes (e.g., groundwater intrusions, sediment heat flux, and solar radiation through the ice cover). Field observations in an Arctic lake showed that excluded salts redistributed throughout the water column and that the lake did not turnover, despite the presence of episodic isothermal layers over discrete depths. These observations motivated us to conduct laboratory experiments at different salinities (S = 0 to 8 g/L) to examine the circulation and redistribution of excluded salts below the ice. Our distilled water experiments replicated the typical dimictic behavior expected for pure fresh water lakes, while all saline experiments showed evidence of local mixing beneath the ice, especially at the onset of ice formation when the excluded flux of salt is highest. For our S = 8 gL-1, convection throughout the water column was regularly observed throughout the ice production period. In the less saline experiments, the water column remained reverse temperature-stratified throughout the ice production period despite evidence of local mixing. The temperature time-series and vertical sampling of salt after ice-off also showed the presence of a stabilizing salt gradient at depth. CSCE2015-124 Presented in Session 5D: GREEN INFRASTRUCTURE DESIGN AND LAND USE CHANGES Tidal-In-Stream Power Resource Potential Gregory Lawrence The extraction of kinetic energy from tidal flows has been heralded as a significant potential source of renewable power. We show theoretically that many resource assessments are optimistic and that physical, economic and regulatory constraints will likely limit tidal power generation to more modest levels than have been assumed. A large laboratory experiment was built to validate our analytical model. Simulating the boundary conditions associated with tidal flows involved numerous, novel motion control systems. The results of the physical model compare well with the analytical model. 48 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-126 Presented in Session 6C: SEDIMENT AND TRANSPORT MODELING Experimental and Numerical Modeling of Erosion and Sedimentation in Navigation Channel Wanquig Chi Navigation channels are often in need of frequent dredging. In order to understand the flux and mechanisms of sediment erosion and deposition in navigation channels, laboratory experiments were conducted in a large tilting flume using bottom trenches in sediment bed under different flow and sediment conditions. The geometry of these bottom trenches were varied in the experiments. The sediment transportation flux data were measured under three sediment grain sizes, different angle of the sediment slope and different approaching flow velocities. Water velocity profiles were measured using acoustic Doppler velocimetry, and the evolution of the bottom sediment profiles were recorded using a laser sheet and a high-speed video camera. The relationships of the sediment flux with the approaching velocity, the geometry of the bottom trench, and the grain size of sediment were studied. These results were then used to construct a numerical model using ANSYS Fluent to simulate the erosion and sedimentation processes in the bottom trench. The calibrated numerical model is then applied to study the change of topography of Zhuangjiabu navigation channel in Shandong, China. Field sedimentation measurements of 41 sites were used and the model was verified by the observation data of 2009 with a general good agreement. The numerical model was then used to study the change of the tidal currents and the seabed deformation. CSCE2015-127 Presented in Session 1D: TURBULENT MIXING AND ENTRAINMENT Numerical and Experimental Investigation of Saline Discharges in Stationary Ambient Saeideh Kheradmand Submerged discharge of dense jets (higher in density than the ambient water), which has been known as the most common engineering practice, is associated with many environmental issues. Mixing characteristics of the jet and the ambient water (especially in near field), maximum rise height and associated dilution, and the location of the impact point are some of the main concerns. A numerical and experimental study has been performed in order to investigate the hydraulic behaviour of the inclined round dense jet (negatively buoyant jet) for discharge angles θ=30° and 45° with various densities. The experiments were performed in a rectangular 1.8 m long basin (0.62 m3 volume) with a single round port. In the numerical simulation, a Linear Eddy Viscosity turbulence model (realizable k-ε) and a Reynolds Stress turbulence model (LRR), have been applied using a finite volume model (OpenFOAM). Jet characteristics such as maximum jet rise height, jet dilution at maximum rise, and the location and dilution at the impact point were studied while various densimetric Froude numbers were considered. Results from the numerical simulation showed a good agreement with those of the experimental study; however, along the jet trajectory, some overestimations and underestimations were observed. A qualitative comparison between the numerical and experimental study is presented in this paper. CSCE2015-129 Presented in Session 1B: ADAPTIVE WATER MANAGEMENT IN A CHANGING CLIMATE Dynamic River Modelling for Flood Risk Management Shohan Ahmad The dynamic modelling approaches presented in this paper for analysis of risk in water resources management has the potential to enhance the modelling capabilities in numerous application areas, where the main interest is the interaction between time and space in understanding uncertainty and its consequences. The two major sources of uncertainty in water resources management are spatial variability and temporal variability. Spatial variability occurs when values fluctuate upon location of an area and temporal variability occurs when values fluctuate with time. To understand risk dynamics, patterns in time and location in space need to be examined together. Therefore, to better understand dynamic characteristics of flood risk, two modelling framework is presented in this paper that not only captures the dynamic processes in time and location in space but also integrates different modelling tools required for solving complex flood risk management problems. Hydrodynamic and system dynamics modelling is presented in this paper as two powerful tools for modelling the interaction between time and space. The first modeling framework presents system dynamics simulation coupled with 3-D fuzzy set theory. Whereas the second modeling framework presents hydrodynamic modeling coupled with 3-D fuzzy set theory. This integrated modelling framework can enhance our ability to understand complex flood management processes, and can also assist in generating adequate information/scenarios in order to help decision-making. Presented methodology is illustrated using the Red River flood of 1997 (Manitoba, Canada) as a case study. 49 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-130 Presented in Session 2A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 2 Future Flooding Increase: Prediction and Probable Cause. A Case Study at Vietnam Central Coastal Area Ngoc Duong Vo As shown in World Bank studies, with more than 70% of the population working in agriculture, inhabitants mainly concentrate at the coastal plain, Vietnam is one of the countries that are most heavily affected by the consequences of climate change. Especially, the impact of climate change is expected to be more serious at Vietnam central. Which will be main factor of scale variability of inundation area in future, sea level or inflow rising? In order to answer the question, a flood map is established for this region. This flood map is constructed on the combination between a hydrological model (MIKESHE) and hydraulic model (MIKEFLOOD). MIKESHE model which is calibrated and validated in twenty years with the Nash Sutcliffe and correlation coefficients could reach to 0.82 and 0.92, respectively, is used to project the change of river flow in the end of 21st century. The enlargement of flood plain due to the increase of flood flow and sea level is estimated via MIKEFLOOD model, which is calibrated and validated on typical actual flood event with the statistical index reach to 0.92 as R and 0.83 as E. The comparison is expected to determine the primary perpetrator caused the change of flooded area in last years of this century for Vu Gia Thu Bon catchment, Viet Nam’s coastal area as well. The variable scale of inundation area allows an operational approach for integrating between the climate change and the engineering design activities dedicated to flood protection measures and resilience strategies. CSCE2015-132 Presented in Session 5A: STRATEGIES FOR EFFICIENT WATER RESOURCES PLANNING Role of Plantain Peel Biochar in Enhancing Safe Use of Untreated Wastewater Christopher Nzediegwu There has been a rise in global water consumption in the past 100 years due to increase in human population, urbanization, economic growth, improved standard of living and industrialization. In many parts of the world, wastewater is generated in a sustainable manner from industries and homes, but it is not used efficiently. The use of wastewater in the agricultural sector—a major driver in water usage, is being advocated in many developing countries. However, there are myriad issues related to its usage which may pose serious problems directly or indirectly to the global environment. Biochar, the carbon-rich product obtained from the pyrolysis of plant based materials, has shown some agronomical and environmental benefits. These benefits derived from the use of biochar, depend largely on the type of feedstock used. Thus, this preliminary study was conducted to ascertain if plantain peel biochar (PPB) will serve as a low cost sorbent for the removal of heavy metals (Cd, Cr and Pb) in untreated or partially treated wastewater. Batch sorption and desorption test was conducted using three different cocktails of Cd, Cr and Pb. Cd and Pb showed very high sorption efficiency of 98.8% and 94.6%, respectively. The desorption test also revealed that the PPB is holding the heavy metals tightly. Therefore, it is evident that PPB is a potential low cost sorbing material for removing heavy metals in untreated or partially treated wastewater. The outcome of this test will help in the development of cheap PPB filter materials that will encourage the safe use of wastewater especially in developing countries. CSCE2015-133 Presented in Session 5A: STRATEGIES FOR EFFICIENT WATER RESOURCES PLANNING Use of Super Absorbent Polymers (Hydrogels) To Promote Safe Use of Wastewater in Agriculture Jaskaran Dhiman Water resource plays a pivotal role in the development of human civilization and will continue to do so in the future. There has been an increase in demand of freshwater due to increase in human population. The global human population is projected to reach 9.6 billion by the year 2050 and this would also lead to further increase in freshwater demand for various activities like urbanization, industrialization and agriculture. Thus, there is a need to increase our water use efficiency to meet this increasing demand. Researchers are looking at wastewaters from urban and industrial settings as a potential source for use in agriculture. However, wastewater is known to be a source of contaminants such as heavy metals, sex hormones and antibiotics which can be harmful to the environment as well as human health. Use of super absorbent polymers (SAP) is an established water conservation technique in agriculture and is widely used in different parts of the world. For our study, it is hypothesized that the use of SAP and SAP-biochar mixture would ensure safe use of wastewater in agriculture. Preliminary experiments aiming at quantifying SAP’s ability to absorb contaminants present in wastewater, viz. female sex hormones (estrone and estradiol), antibiotics (oxytetracycline) and heavy metals (Cd, Cr and Pb) are ongoing in our laboratory. Our results showed that SAP was able to absorb hormones and heavy metals from prepared solutions. SAP was able to reduce concentration of hormones E1 (estrone) and E2 (estradiol) from 5 mg/L prepared solution by 14.1% and 8.8% respectively, whereas for heavy metals, SAP was able to reduce Cd concentration by 76.0% and 76.2% for the Cd and Pb mix ‘cocktail’ and individual Cd solutions respectively. The outcome of this study would help in development of methodology involving SAP use along with biochar to ensure safe wastewater use in agriculture. 50 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-138 Presented in Session 2D: LAKE HYDRAULICS Potential Mixing Mechanisms in End Pit Lakes Gregory Lawrence The extraction of crude from the Canadian oil sands has produced large quantities of fluid fine tailings (FFT) and oil sands process-affected water (OPSW). A remediation strategy is to create “end pit-lakes” by backfilling mine pits with FFT and capping them with a mix of OPSW and fresh water. A primary concern is the potential for mixing between the water cap and the FFT. There are many potential mixing mechanisms, including: shear at the mudline due surface wind-wave action and internal wave seiching; inflows and outflows; penetrative convection due to surface cooling and evaporation; convection due to salt-water exclusion during ice formation; gas bubbles emerging from the FFT; and double-diffusion at the mudline. Mixing between the two layers is inhibited by a density step of order 200 kg/m3 across the “mudline”, and by the viscosity of the FFT. Given that thermoclines in natural lakes with a density step of order 1 kg/m3 are resilient to many of the above listed processes throughout the summer, it is conceivable that these mechanisms are not directly responsible for the mixing of FFT into the water cap. In the absence of any mixing the pore water released as the FFT dewaters would likely form an intermediate layer between the FFT and the water cap with a density of 1 – 10 kg/m3 more than the overlying water. Many of the mechanisms listed above are likely to be able to mix the intermediate layer into the water cap. This conceptual model of pit-lake behavior is tested using data from Syncrude’s Base Mine Lake, the first commercial-scale end pit lake. CSCE2015-141 Presented in Session 6D: FLUVIAL HYDRAULICS 2 Design and Hydrodynamic Modeling of Walleye (Sander Vitreus) Habitat Improvements in the Nipigon River Joshua Wiebe The Nipigon River is the largest tributary to Lake Superior and is renowned for its sport fisheries. Over the last century, the populations of many fish species declined due to a variety of factors including: overfishing, habitat degradation, dam construction, flow regulation and ramping, logging, and industrial and municipal pollution. Walleye were once the most abundant fish species in the river, but suffered severe declines in the 1960s due to pollution from a local pulp mill and overfishing. The loss of the walleye fishery and other environmental degradation led to the listing of Nipigon Bay as an Area of Concern under the 1987 Great Lakes Water Quality Agreement. Efforts were made to rehabilitate the walleye population by improving the quality of industrial and municipal effluents, stocking fish, and restoring habitat. In this study, we evaluated a number of design alternatives to create new walleye spawning habitat and to improve access between spawning and nursery habitat. The alternatives were evaluated using a two-dimensional hydrodynamic model of the Nipigon River. A particle tracking model was also used to assess the effectiveness of the design in transporting walleye fry from the spawning grounds to the nursery habitat. The study demonstrates the use of modeling tools to develop and evaluate design alternatives. The project was constructed in August 2014. CSCE2015-206 Presented in Session 5B: EXPERIMENTAL AND COMPUTATIONAL HYDRAULICS 2 Measurement of Scour Profiles around Bridge Piers in Channel Flow with and without Ice-Cover Peng Wu The present study was carried out to investigate the impact of ice-cover on the scour geometry around bridge piers. The scour around piers of four different diameters was evaluated at three different flow depths with and without ice cover. This resulted in a test matrix consisting of 24 experiments. The results revealed that the extent of scour in the presence of ice-cover was greater than without ice-cover in both the streamwise and transverse directions. The presence of the ice-cover also resulted in the increase of the maximum scour depth. As the flow depth increased, the dimensionless maximum scour depth increased initially and then tends to decrease. The dimensionless maximum scour depth was found to be inversely proportional to the ratio between flow depth and pier diameter. CSCE2015-215 Presented in Session 6B: SUSTAINABLE WATER RESOURCES MANAGEMENT Application of Cavitation Water Jet on Pipeline Cleaning in Oilfield Hongyi Sun The cavitation water jet technology was introduced to clean pipeline scaling in oil fields. The advantages of the technique was also discussed in the present study. By using a commercial software FLUENT, the flow field of cavitation water jet was simulated numerically. The velocity and pressure field was analyzed and compared. Furthermore, the optimization design of cleaning device was also discussed here. Through validation with experimental data, it was found that the water jet technology can be broadly used to clean pipeline scaling in oil fields. 51 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-220 Presented in Session 3C: FLUVIAL HYDRAULICS 1 3D Numerical Simulation of Turbulent Flow and Pollutant Transport in Meandering Channels Van Thinh Nguyen In this study, a three-dimensional numerical simulation of the turbulent flow and pollutant transport in various meandering channels is carried out by a new specific solver, which is developed and coupled into an open source CFD tool box, the OpenFOAM package. The new solver has been validated against typical benchmarking experiments, such as Rosovskii’s and Chang’s experiments. The comparisons between the simulations and observations show a good agreement on the flow patterns and pollutant transports. CSCE2015-242 Presented in Session 3B: HYDROINFORMATICS TOOLS Design of Riprap by Optimization of Neural Network Input Using a Spread Sheet Abdelhamid El Tahan Artificial neural networks (ANN) have been used in many water research applications To ably ANN many commercial software are available which can help designing the structure and train the network with different algorithms appropriate for the selected application. Commercial ANN software doesn't allow users to select different activation functions for each neuron at the same layer or optimize any of the input parameters for design purpose. In this research, Neural Network is hosted by a spread sheet that designed the structure of the desired Neural Network. The spread sheet model simulates the architecture and process of artificial neural network in a transparent environment. The ANN spread sheet was trained to predict abutment scour. The structure of ANN consists of two layers: input and output layers with five neurons in the input layer and one neuron in the output layer. Using a spread sheet allow for viewing the weights and bias for each neuron, selecting different activation functions for each neuron and backward optimization of any of the input parameters. To enhance the performance of ANN different activation functions were selected for each neuron. Evolver addin that uses genetic algorithm optimized the value of each weight, bias and the type of the activation function of each neuron. As a result six ANN were created that gives an accepted root mean square error (R.M.S.E.) and succeeded in prediction of abutment scour. The data for abutment scour for non- uniform sediment mixtures was collected from the Federal Highway Administration published report Input optimization for the bed diameter (D50) were performed it only succeeded for one of the six NN which is (NN1). The result of input optimization was compared with riprap design equations for vertical wall abutment and a new equation for riprap design for abutment was developed using regression analysis of neural network input optimization values. CSCE2015-1A1 Presented in Session 1A: HYDROLOGIC EXTREMES AND CLIMATE CHANGE 1 An Integrated Extreme Rainfall Modeling Tool for Climate Change Impacts and Adaptation in Urban Areas Myeong-Ho Yeo This paper proposes an integrated extreme rainfall modeling tool for constructing the Intensity-Duration-Frequency (IDF) relations at a local site in the context of climate change. More specifically, the proposed approach is based on combination of a spatial downscaling method to link large-scale climate variables given by General Circulation Models (GCMs) with observed daily extreme precipitations at a site using the statistical downscaling method (SDRain), and a temporal downscaling method to describe the relationships between daily and sub-daily extreme precipitation using the scale-invariance General Extreme Value distribution (SDExtreme). The feasibility and accuracy of the suggested method were assessed using rainfall data available from Quebec (Canada) and South Korea for the 1961-2000 period and climate simulations under four different climate change scenarios provided by the Canadian (CGCM3) and the UK (HadCM3) GCM models. Results of this application using data from two completely different climatic regions have indicated that it is feasible to link sub-daily extreme rainfalls a local site with GCM-based daily climate predictors for establishing IDF relations for the present (1961-1990) and future periods (2020s, 2050s, and 2080s) under different climate change scenarios. The proposed integrated extreme rainfall modeling approach provided therefore an essential tool for estimating extreme rainfalls for climate-related impact assessment studies for a given area. 52 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-2B1 Presented in Session 2B: SOME EMERGING TECHNOLOGIES IN HYDROLOGIC MODELING Ensemble Modeling of Hydrologic Processes at One Shot: Modeling Stochastic Kinematic Wave Open Channel Flow by the Stochastic Method of Characteristics Ali Ecran The “master key” equation developed by Kavvas 2003 (J. Hydrol. Eng. 8(2):44–53) and the characteristic equations of kinematic wave open channel flow problem were utilized to develop a corresponding mixed LagrangianEulerian Fokker Planck Equation (LEFPE) of the kinematic wave open channel flow process in order to model the uncertainties in the channel properties and lateral flow conditions. The obtained LEFPE describes the evolution of the probability density function of the state variables of the kinematic open channel flow process in time and space. Details of the material in this presentation were published in J. Hydrol. Eng. 17(1):168–181 and J. Hydrol. Eng. 17(3): 414–423. CSCE2015-2B2 Presented in Session 2B: SOME EMERGING TECHNOLOGIES IN HYDROLOGIC MODELING Climate Change Projection of Snow Cover over Three Mountainous Watersheds in Northern California Chen Jiongfeng In the study, we present the climate change projection of snow cover over the Upper Feather River Watershed (UFRW), the Yuba River Watershed (YRW), and the American River Watershed (ARW), which are located in the high elevation area of Northern California and play a key role in water supply for downstream populated regions. For these three snow-dominated mountainous watersheds, the 13 future projections of atmospheric conditions provided by general circulation models (GCM), including the Fifth-Generation European Centre Hamburg Model (ECHAM5) and the Third-Generation Community Climate System Model (CCSM3), are used as boundary conditions and are dynamically downscaled to 9 km resolution for a continuous 100 years simulation (2000-2099) by the Fifth-Generation PSU/NCAR mesoscale model (MM5). The physically based WEHY snow module, which is driven by the downscaled future climate projections, is used to simulate the snow cover changes in the three watersheds at hourly increments and with spatial resolution of 100 meters. CSCE2015-2B3 Presented in Session 2B: SOME EMERGING TECHNOLOGIES IN HYDROLOGIC MODELING Numerical Atmospheric Hydrological Modeling Based Probable Maximum Precipitation Estimation K. Ishida A 72-hour basin-averaged precipitation over three watersheds in Northern California is maximized using numerical simulations with a regional atmospheric model. Severe storm events in Northern California are mostly caused by an atmospheric river (AR) which is a high-moisture atmospheric flow coming from the Pacific Ocean. Since the path of an AR affects the amount of precipitation over the target watersheds, the contribution of an AR to precipitation over each of the target watersheds is maximized by spatially shifting the atmospheric boundary conditions (ABC) for the regional atmospheric model. Then, this methodology is applied to the 61 severest storm events over each of the target watersheds from the water year 1951 to 2011. The results show that historical storm events had the capability to cause heavier precipitation over the target watersheds, and the presented methodology is effective for the maximum precipitation estimation. CSCE2015-2B4 Presented in Session 2B: SOME EMERGING TECHNOLOGIES IN HYDROLOGIC MODELING Scaling Methods for the Saturated Groundwater Equations James Polsinelli Complex flows in heterogeneous confined and unconfined aquifers is a phenomenon that continues to present difficulties in flow mapping and modeling in the field, laboratory, and through numerical simulations. It is often the case with complicated phenomena that transformative scaling and reduction of the problem through symmetry is of great efficacy in the formation of predictive models in both the laboratory and computational settings. A broad class of scaling transformations for the confined and unconfined groundwater equations is presented based on the highly developed mathematical theory on the Lie group of symmetry transformations. The invariance properties of the groundwater equations under the set of scaling transformations is discussed and compared to other known scaling techniques. The utility of the Lie group scaling is presented through the results of a number of numerical simulations conducted through the USGS simulation software MODFLOW. 53 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-2B5 Presented in Session 2B: SOME EMERGING TECHNOLOGIES IN HYDROLOGIC MODELING Sediment transport scaling and self-similarity: application to the one-dimensional non-equilibrium suspended sediment transport process Kara Carr Conditions for self-similarity of non-equilibrium suspended sediment transport can be identified by applying the one-parameter Lie group of point scaling transformations to the governing equation and the initial and boundary conditions. It is shown that the initial boundary value problem of unsteady one-dimensional suspended sediment transport can be self-similar through numerical simulations of prototype and scaled domains. Scaled values of variables at specified temporal and spatial locations can be up-scaled to their corresponding values in the prototype domain with accuracy. Conditions of self-similarity are found for the general scaling case in which all variables are subject to scaling, and for un-scaled sediment properties. Preserving sediment properties such as grain size and density increases accuracy and applicability of physical scaled models of sediment transport. CSCE2015-2B6 Presented in Session 2B: SOME EMERGING TECHNOLOGIES IN HYDROLOGIC MODELING Numerical Atmospheric Hydrologic Modeling-Based Flood Frequency Analysis for Cache Creek Watershed Toan Trinh Effects of climate change on hydrologic flow regimes, particularly extreme events, necessitate modeling of future flows to best inform water resources management. In this study, the future flows were simulated using global climate models (GCMs) and regional atmospheric models in tandem with watershed models. This research effort ran 13 simulations for possible future carbon emission scenarios (taken from the IPCC SRES A1FI, A1B, A2 and B1 families) over the 21st century (2010-2099) for the Cache Creek watershed in Northern California. The modeled flow results comprise a dataset suitable for time series and frequency analysis allowing for more robust system characterization. A comparison between frequency analysis results on two periods of future simulated flows (2010-2054, 2055-2099) and historical flow data suggests that the annual maximum flows significantly increase in the future. This comparison found that the 100 year flood increased 5% from 1903-2012 period to 2010-2054 period, and 28% from 2010-2054 period to 2055-2099 period. CSCE2015-2C1 Presented in Session 2C: FLOODNET - A STRATEGIC RESEARCH NETWORK ON FLOODS IN CANADA Overview of Floodnet Paulin Coulibaly FloodNet is a NSERC Strategic Network that aims to facilitate collaborative research work between universities, federal/provincial agencies and private sector. It is the best approach to optimize resources and expertise to address the growing issue of floods in Canada. The main objective of FloodNet is to create a vehicle for a concerted nation-wide effort to improve knowledge on flood processes and their impacts, and enhance flood forecasting and management capacity in Canada. This is a particularly challenging task because of the large diversity of geographical and hydro-climatic conditions in Canada, but feasible through a structured research network such as FloodNet that brings together scientists/experts, users/operational forecasters, and the private sector to tackle the complex and fundamental research questions and the technological gaps that need to be addressed in order to significantly enhance flood forecasting and management in Canada. CSCE2015-2C2 Presented in Session 2C: FLOODNET - A STRATEGIC RESEARCH NETWORK ON FLOODS IN CANADA Flood Regimes in Canada: Learning from the Past and Preparing for the Future Paulin Coulibaly Floods are arguably the most common natural disaster with considerable social, economic and environmental consequences. Damages from floods can include property loss, destruction of infrastructure, loss of life, social and economic disruption from evacuations, and environmental degradation. There is evidence that the frequency, magnitude and economic damages from floods are rising in recent years as a result of increased human exposure to flood-prone areas as well as the impacts of climate change (Brooks et al. 2001). This component of the NSERC Strategic Network, FloodNet, will explore ways to better estimate the probability of occurrence of extreme events and improve our understanding of the spatial and temporal variability of extremes. Throughout this research, the over-arching goal is to develop the information required to enhance the management of floods and extreme events. The research program will advance our knowledge of flood regimes in Canada (past, present and projected future) and provide guidelines for infrastructure design. 54 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-2C3 Presented in Session 2C: FLOODNET - A STRATEGIC RESEARCH NETWORK ON FLOODS IN CANADA Development of New Methods for Updating IDF Curves in Canada Van-Thanh-Van Nguyen The majority of the world populations currently live in urban areas, and existing or new urban centres will continue to grow in size and economic importance. In particular, urban infrastructures (e.g., drainage and water supply systems) have been constructed at large scale across cities worldwide. These systems have reduced the vulnerability of the cities in general, but at the same time could make them more vulnerable to climate extremes, partly due to the lack of consideration to what might occur when the design criteria are exceeded. Next to this increase in the vulnerability, there is now a broad scientific consensus that the global climate is changing in ways that are likely to have a profound impact on the hydrologic cycle and the human society. Consequently, urban water managers need to start accounting for these effects in the design and management of urban infrastructures in order to minimize the risks of failures of these systems. Research on developing suitable approaches for limiting climate change and adapting its impacts on the planning and design of urban infrastructure, especially urban water utilities, is therefore highly critical. More specifically, many practical urban water issues related to climate change are dependent on various aspects of climate simulations at a global (or regional) scale. While these climate models have been recognized to be able to represent reasonably well the main features of the global (or regional) distribution of some basic climate parameters, but they so far could not reproduce well details of climate conditions at scales of relevance to urban hydrological studies. This necessitates some form of downscaling of the climate simulation results from a coarse (30km-300km) spatial resolution down to much finer spatial grids, and even virtually point values if changes in local urban processes are to be assessed. Therefore, the main objective of the proposed research is to develop downscaling procedures for linking global (or regional) climate predictions to urban hydrologic processes (such as extreme rainfall process) at appropriate high spatial and temporal resolutions in order to be able to develop improved methods for planning and design of critical urban infrastructure. CSCE2015-2C4 Presented in Session 2C: FLOODNET - A STRATEGIC RESEARCH NETWORK ON FLOODS IN CANADA Quantifying and Reducing Predictive Uncertainty of Floods François Anctil An ensemble forecasting system aims to assess and provide useful information on the uncertainty of hydrological predictions by proposing, at each time step, an ensemble of forecasts from which one can estimate the probability distribution of the predictand (the probabilistic forecast). This is in contrast with a single estimate of the flow for which no probability distribution is provided (the deterministic forecast). Ensemble techniques are the main focus of Theme 2 of the NSREC Canadian FloodNet and constitute an integral component of the flood forecasting system developed in Theme 3. Since the early 1990s, many of the major meteorological agencies have issued both deterministic and ensemble (probabilistic) forecasts. While promise exists, limitations have been identified within operational meteorological ensemble prediction systems including lack of realistic spread in forecasts, limited horizontal resolution, and simplistic representation of land and water surfaces, including lakes, coastal waters and open oceans. CSCE2015-2C5 Presented in Session 2C: FLOODNET - A STRATEGIC RESEARCH NETWORK ON FLOODS IN CANADA Evaluation of Flood Forecasting and Warning Systems in Canada Peter Rasmussen One of the primary goals of FloodNet, the newly established NSERC Strategic Network, is for Canadian university researchers and provincial forecast centres to work together to develop improved models and procedures for producing flood forecasts for Canadian rivers. In Canada, flood forecasts and flood warnings generally fall under provincial jurisdiction. The human resources and technology invested in flood forecast centres differ from province to province and typically depend on the frequency and severity of flood events in the province. Major flood events often trigger a review of procedures and resource investments. For example, the 2011 flood on the Assiniboine River prompted the Government of Manitoba to form the Manitoba 2011 Flood Review Task Force, an independent body established to examine details of the 2011 flood, including the preparedness of the provincial flood forecast centre to deal with an extreme event never seen before (Manitoba 2011 Flood Review Task Force, 2013). A similar review was undertaken in Alberta following the disastrous 2013 flood where a project entitled "Flood Indicators: Improving Flood Forecasting in Alberta" was initiated. One of the outcomes of the project in Alberta was a report that includes a review of flood forecasting in various jurisdictions in Canada as well as in other countries (Alberta WaterSMART, 2014). As part of FloodNet activities, we are undertaking a separate review of data, models, and procedures used at the various Canadian floodforecasting centres. The review will serve as a basis for some of the activities in the FloodNet research program. The review will aim to identify strengths and weaknesses of the different tools used by provincial forecast centres and to propose and explore areas of improvements, which could include things such as efficient data base systems, improved hydrologic models, uncertainty analysis, and effective communication of flood-related information to the public. The project is still in its early stage. The talk will use findings from recent flood review reports and from our own preliminary survey of provincial flood forecast centres to identify what we see as key issues in flood forecasting in Canada. 55 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-2C6 Presented in Session 2C6: Floodnet - A Strategic Research Network on Floods in Canada Risk Analysis of Physical, Socio-Economic, and Environmental Impacts of Floods Marguerite A. Xenopoulos Trent University FloodNet is a transdisciplinary network recently funded by NSERC. One of the themes that will be explored in FloodNet is related to social, environmental and economic impacts of flood events to provide a comprehensive understanding of the consequences of flooding that can be incorporated into an enhanced approach to flood management. In Canada, there have been many large flood events that have led to a variety of negative social, economic and environmental impacts. However, flood events can also have beneficial impacts for some ecosystems by maintaining the function and biodiversity of the ecosystem, recharging groundwater and delivering nutrients to agriculture areas. Further research is needed to better understand all of the possible socio-economic and environmental impacts of flood events, including both positive as well as negative consequences arising from flooding. The major research projects that will be addressed in this theme include 1) the role of floods on aquatic ecosystem condition and aquatic ecosystem services, 2) modelling-based integrated assessment of flood impacts on urban and rural water resources systems, 3) flood risk analysis and its utility for management decisions, and, 4) assessing and planning for the socio-economic effects of floods. A range of statistical, hydrologic and watershed modeling and economic and psychometric analyses will be used in this theme. The outcomes of this theme include to 1) quantify links between flooding and aquatic ecosystem condition to facilitate the development of management and conservation plans; 2) produce a physical system modelling approach for assessing the integrated impacts of floods in rural, urban and semi-urban watersheds; 3) produce a systematic approach for developing risk indicators with uncertainty estimate that water resources and disaster managers can use for decision making ; 4) determine the costs and benefits of flooding and living in flood-prone areas; 5) develop a framework for generating holistic flood vulnerability indicators that account for socio-economic effects of floods. Each of these outcomes will be briefly discussed. It is expected that these results produce much needed information for overall flood management plans. CSCE2015-4A2 Presented in Session 4A: CLIMATE CHANGE IMPACTS AND ADAPTATION 2 Comparison of Multisite and Single-Site Temperature Downscaling Effects on Streamflow and Runoff Simulation Alireza Zareie The issue of preserving spatial dependence among a set of weather stations has triggered the demand for downscaling of weather variables at many different sites concurrently. Hence, several methods of multisite downscaling have been emerged in recent years. However, those studies related to multisite downscaling methods were mostly involved the assessment of the capability of these techniques in describing accurately the spatio-temporal variability of observed weather variables, but very few studies evaluate the effects of single-site and multi-site downscaling procedures on runoff simulations. In this context, this study was carried out to assess the impacts of multisite downscaling of daily temperature series as compared to the use of single-site temperature downscaling in the simulation of runoff from the Romaine basin located in Côte-Nord region of Quebec. The multisite multivariate statistical downscaling (MMSD) method, which is a combination of multiple linear regression models, singular value decomposition technique and multivariate autoregressive model, was used for multisite downscaling, while the popular single-site SDSM model was used for single-site downscaling of daily temperature extremes. Streamflow simulation was based on the Variable Infiltration Capacity (VIC) distributed hydrologic model. Results of this application have indicated that the multi-site downscaling method could provide more accurate simulations of streamflows than those given by the single-site downscaling procedure. In addition, this paper has investigated the impacts on streamflows due to future changes in precipitation and temperature under different climatic scenarios (SRES) given by six RCMs and two GCMs. Projections under future climatic conditions indicate increasing trends in temperature and precipitation with earlier snowmelt and spring floods in the basin. 56 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Poster Presentations - Sorted by abstract number POSTERS CSCE2015-49 Environmental Flows Evaluation in New Brunswick Presenter: Nassir El-Jabi, Université de Moncton River hydrology is a key component in river engineering, river restoration, river resources planning as well as in the functioning of river ecosystems. As such, hydrological analyses play an important role not only in water resources projects but also in fish habitat and instream flow studies. The present study focused on flow metrics that best describe the natural flow regime and the hydrological characteristics of rivers within New Brunswick. In total, 54 hydrometrics stations were selected for the analysis and parameters describing flow availability included, among others, the mean annual flow, median flow as well as mean monthly flows. A flow duration analysis was also conducted for each station to estimate the probability of exceedance of different flows throughout the year. Extreme events are also important in hydrology and these were studied by conducting a high and low flow frequency analyses. Following the frequency analysis, regional regression equations were calculated between many flow metrics and drainage basin area. Following the characterization of the flow regime, environmental flows were calculated and assessed for the studied rivers. The concept of environmental flow relates to the quantity of water required in rivers to sustain an acceptable level of living conditions for aquatic biota at various phases of their development. For many agencies, environmental flow methods are essential in environmental impact assessments and in the protection of important fisheries resources. This part of this study deals with the evaluation of hydrologically based environmental flow methods within the New Brunswick. In total, four hydrologically based environmental flow methods were compared using data from the selected stations across the region: the 25% mean annual flow, the Q50 method, the 70% Q50 method and the Q90 flow duration method. The study provided a range of potential environmental flows on a monthly basis as well as potential water availability CSCE2015-64 Dew Water Collection as a Nonconventional Source of Water Presenter: Bahaa Khalil, McGill University Dew and rain water were collected during summer 2014 at the Macdonald Campus of McGill University, SainteAnne-de-Bellevue, Quebec, Canada. The objective was to provide a review of the main factors affecting passive dew water collection in a humid continental climate. Three standard dew condenser units were installed at 1, 1.5 and 2 m above soil surface in the Macdonald campus. Each unit had four standard passive dew condenser panels that were facing the North, West, South and East. Daily measurements were performed early in the morning, just before sun rise, and the amount of dew water harvested by each panel was recorded. In addition, after any rain event, the amount of water collected due to the rain was recorded for each panel. Weather data was recorded every 5 minutes including ambient temperature, relative humidity, wind speed and direction, and dew point temperature. Different statistical analyses were employed to examine the effect of different weather variables on the amount of dew collected as well as to examine the effect of the level as well as the direction at which the panels were installed on the amount of dew water collected. Results indicated that the amount of dew water collected was significantly affected by the level at which the units were installed, while the position and direction of the panel had little effect. In addition, different behaviours with weather conditions were observed based on the level at which the condenser was installed as well as its orientation. CSCE2015-67 Flood risk assessment using MS Excel spreadsheet: A case study of Fredericton (New Brunswick) Presenter: Heather McGrath, University of New Brunswick Conventional knowledge of the flood hazard alone (extent and frequency) is not sufficient for informed decision-making. The public safety community needs tools and guidance to adequately undertake flood hazard risk assessment in order to estimate respective damages and social and economic losses. While many complex computer models have been developed for flood risk assessment, they require highly trained personnel to prepare the necessary input (hazard, inventory of the built environment, and vulnerabilities) and analyze model outputs. As such, tools which utilize open-source software or are built within popular desktop software programs are appealing alternatives. Eva-Risk 2 (ER2), recently developed based on the standard methodology applied in U.S.FEMA’s Hazus-Flood software, runs loss assessment analysis in a Microsoft Excel spreadsheet. User input is limited to a handful of drop-down menus utilized to describe the building type, age, and occupancy and the expected water level. Respective depth damage curves and other vulnerability parameters have been imported from Hazus and are accessed in conjunction with user input to display exposure and estimated economic losses related to the structure and the content of the building. Building types and occupancies representative of those most exposed to flooding in Fredericton (New Brunswick) were introduced and test flood scenarios were run. The algorithm was validated against results from the Hazus-Flood model for the same building types and flood depths, indicating a narrow variation, within ±1.5% for damage to a structure, whereas for aggregate scenario over a dissemination area, the total damages (structure and contents) variation was ±6%. 57 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations - Sorted by abstract number CSCE2015-88 2D Numerical Modeling of Sediment Trap Efficiency in a Multi-Basin Desander Presenter: Marcus V. Estigoni, University of Sao Paulo - Northwest Hydraulic Consultants In sediment-laden streams, water diverted through run-of-river intakes can be subject to high concentrations of sand and silt transported in suspension. In hydropower projects, suspended sand can settle along diversion channels reducing hydraulic capacity and increasing head losses, while also causing serious abrasion damage in turbines. Desanders are structures located in the diversion channels intended to remove suspended sediments, trap efficiency being one of the most important parameters needed for their design. This study investigates the applicability of the numerical model Telemac-2D to simulate the flow hydraulics and sediment settling process in a 160 m long desander with seven parallel settling basins, each 9 m wide. The desander was designed for a flow discharge of 90 m3/s and intended to trap sediments ranging from 0.125 to 0.5 mm. Hydrodynamic and trap efficiency information gathered in a 1:15 reduced-scale physical model was used to calibrate and validate the numerical model. Despite discrepancies in the flow distribution across the basins predicted by the numerical model and observed in the physical model, the predicted trap efficiency for each basin (and overall trap efficiency) agreed well between both models. In addition to the seven-basin model, the central basin was isolated and simulated separately. For the single basin case (which represents condition similar to those used by analytical models) the numerical model predicted slightly lower trap efficiency compared with the entire desander model due to lower sediment deposition in the transition zone between the approach channel and the basins. CSCE2015-92 Mixing Coefficients and Their Importance in Modeling Waterways Presenter: Adnane Stitou, University of Ottawa Every year, thousands of treatment plants discharge large quantities of waste into natural channels. The waste moves along the flow by gravity (slope), and mixes with the water due to the bed friction. This mixing increases the concentration of toxic elements in the water, and then moves towards ponds, rivers, estuaries, lakes, oceans and causes more adverse effects to the environment. The object of this paper is to dissect and study the mixing process to determine or predict the dispersion of the pollutants. In order to model mixing in natural waterways, we must analyse it in all directions: longitudinal, transverse and vertical. The fundamental processes involved in tracer mixing are advection, molecular diffusion, and turbulent dispersion. These water movements determine the mixing coefficients. The mixing coefficients are parameters that model the level of mixing in the longitudinal direction (K), vertical (εV) and transversal directions (εT). Tracer analysis is used to calculate these three critical coefficients. Tracers mix rapidly in the vertical direction compared to the transverse direction due to the large nature of channels. The most important parameter of mixing is the transverse coefficient of mixing (εT) which is implicated in steady point source discharges (Treatment plants), the longitudinal mixing coefficient (K) is important in sudden discharge problems, while the vertical mixing coefficient (εV) is the parameter that is best predicted theoretically. Transverse and longitudinal coefficients are determined through experimental analysis mostly. CSCE2015-94 Projected Changes to Short and Long-Duration Precipitation Extremes over the Greater Montreal Area Based On Regional Climate Model Simulations Presenter: M. Naveed Khaliq, National Research Council Canada In this study, projected changes to characteristics of May to October short- and long-duration seasonal precipitation extremes were evaluated for Montreal and surrounding areas, using a multi-Regional Climate Model (RCM) ensemble available through the North American Regional Climate Change Assessment Program. The set of simulations considered included those performed with the four participating RCMs for the 1980–2004 period driven by National Centre for Environmental Prediction reanalysis II and those driven by four Atmosphere-Ocean General Circulation Models for the 1971–2000 and 2041–2070 periods, where the future simulations correspond to Special Report on Emissions Scenarios A2 scenario. For the analysis, regional frequency analysis approach was used to develop projected changes to selected 2-, 5-, 10-, 20-, and 50-yr return levels of precipitation extremes. Considerable differences were noted in the performance of individual RCMs. However, multi-RCM ensemble-averaged values of various return levels compared favourably with those observed. Analyses of ensemble-averaged projected changes to various return levels showed a general increase nearly for all return levels, with only few exceptions. The changes to return levels of short-duration (e.g. 3- and 6-h) precipitation extremes were relatively larger than those to the long-duration (e.g. 24- and 48-h) extremes. In addition, the changes to short-duration precipitation extremes were generally found statistically significant compared to those of long-duration. It is anticipated that these changes in extreme precipitation characteristics will have important implications for managing and planning of urban drainage infrastructure in and surrounding areas of Montreal. 58 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Abstracts for Oral Presentations CSCE2015-96 59 Sorted by abstract number Balancing Economic and Environmental Protection Goals in Water Resources Management in the Oldman River Basin Presenter: Hamideh Hosseini Safa, University of Saskatchewan Sustainable water resources management requires balancing economic and environmental protection goals in water allocation practices. Ideally, decision makers have to adjust their water allocation plans under different climatic conditions, resulting in different water supply availabilities (WSAs) and water demands, to remain economically stable while meeting ecosystem demands. The objective of this study is to produce a map representing alternative water allocation policies under different climatic conditions and environmental scenarios. The Oldman River Basin (OMRB), located in the southern Alberta, Canada, is our case study. We developed an integrated water resources management model – SWAMP2.0 –for this Basin using the System Dynamics (SD) approach. SWAMP2.0 is a water allocation model plus economic evaluation, in-stream flow needs (ISFN), and irrigation demand submodels. To present a series of water allocation plans for the OMRB, we used the Pareto approach. In this approach, the SWAMP2.0 is simulated under multiple water supply scenarios, which lead to different economic benefits, for each environmental flow level. Afterwards, a two dimension Pareto curve on which each point represents a water allocation plan, is produced for the OMRB. The frontier of the curve, called a Pareto front, is an optimal series of alternative water allocation plans under different water supply availability scenarios. CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Abdelnour, Elie Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-93: Design and Construction of a Ships Retention System in Beauharnois Canal along the St Lawrence Seaway Navigation System Geniglace Inc. Abdelnour, Razek Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-93: Design and Construction of a Ships Retention System in Beauharnois Canal along the St Lawrence Seaway Navigation System Geniglace Inc. Abily, Morgan Presented in Session 3D Track 3: Flood Hydraulics and Hydrology CSCE2015-109: 2d High Resolution River Flood Simulations in Urban Environment: Global Sensitivity Analysis for Spatial Ranking of Uncertain Parameters University of Nice Sophia Antipolis, France Adamowski, Jan Presented in Session 1B Track 1: Adaptive Water Management in a Changing Climate CSCE2015-26: Perceptions Of Environmental Flows And Ecological Restoration – A Document Analysis Presented in Session 3A Track 3: Climate Change Impacts and Adaptation 1 CSCE2015-86: Influences of Enso, Nao, And PDO on Canada’s Monthly Streamflow: Trends and Variability Presented in Session 3B Track 2: Hydroinformatics Tools CSCE2015-65: L-Moments Based Novel Record-Extension Technique for Short-Gauged Water Quality Parameters Presented in Session 4C Track 5: Urban Flood Risk Management and Adaptation CSCE2015-16: Determining the Optimal Time Delay Embedding Parameters of Urban Water Supply System Signals Presented in Session 5D Track 5: Green Infrastructure Design and Land Use Changes CSCE2015-20: The Effect of Sand Grain Size on the Development of Cyanobacterial Crusts Presented in Session 6B Track 2: Sustainable Water Resources Management CSCE2015-66: Social Learning for Meaningful Participation: Transboundary Water Resource Management in the Great Lakes and St. Lawrence River McGill University Ahmad, Shohan Presented in Session 1B Track 4: Adaptive Water Management In A Changing Climate CSCE2015-129: Dynamic River Modelling for Flood Risk Management University of Western Ontario Albers, Cory Presented in Session 4C Track 4: Urban Flood Risk Management and Adaptation CSCE2015-58: Flow Development and Retention Times in a Vortex-Type Storm Water Retention Pond University of Saskatchewan Alfaifi, Hassan Presented in Session 1D Track 2: Turbulent Mixing and Entrainment CSCE2015-116: Experimental and Numerical Study of Thermal Buoyant Wall Jet in Calm Ambient Water University of Ottawa Alkayeed, M. Presented in Session 1D Track 4: Turbulent Mixing and Entrainment CSCE2015-105: A Procedure to Measure Reynolds Stresses in the Flow Field of Hydroclones Concordia University Alodah, Abdullah Presented in Session 2A Track 3: Hydrologic Extremes and Climate Change 2 CSCE2015-11: Anticipated Alteration in Extreme Events Utilizing Bias Correction of Two Climate Model Outputs for the South Nation Watershed University of Ottawa 60 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Alsaeed, Badir Presented in Session 5A Track 3: Strategies For Efficient Water Resources Planning CSCE2015-10: Development of a Reilp Approach for Long-Term Planning of Warm System in Saudi Arabia Dalhousie University Anctil, Francois Presented in Session 2C Track 1: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C1: Overview of Floodnet Presented in Session 2C Track 4: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C4: Quantifying and Reducing Predictive Uncertainty of Floods Université Laval Anderson, M.L. Presented in Session 2B Track 3: Some Emerging Technologies in Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrological Modeling Based Probable Maximum Precipitation Estimation University of California-Davis Ashkar, Fahim Presented in Session 2C Track 2: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C2: Flood Regimes in Canada: Learning From the Past and Preparing for the Future University of Waterloo Atwater, Joel Presented in Session 5D Track 1: Green Infrastructure Design and Land Use Changes CSCE2015-124: Tidal In-Stream Power Resource Potential University of British Columbia Awadallah, Ayman G. Presented in Session 3B Track 2: Hydroinformatics Tools CSCE2015-65: L-Moments Based Novel Record-Extension Technique for Short-Gauged Water Quality Parameters McGill University Baek, Donghae Presented in Session 3C Track 3: Fluvial Hydraulics 1 CSCE2015-220: 3D Numerical Simulation of Turbulent Flow and Pollutant Transport in Meandering Channels Seoul National University, Korea Baker, Scott Presented in Session 1C Track 4: Coastal Hydraulics CSCE2015-39: An Efficient Use of a Physical Model to Verify the Performance of Coastal Structures at Two Harbours in Oman Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-21: Physical Modelling and Design Optimizations for President Kennedy Terminal, Brazil National Research Council of Canada Balachandar, Ramaswami Presented In Session 4B Track 2: Experimental and Computational Hydraulics 1 CSCE2015-107: Experimental and Numerical Study of Shallow Flow past a Single Cylinder Presented in Session 5B Track 1: Experimental and Computational Hydraulics 2 CSCE2015-206: Measurement of Scour Profiles around Bridge Piers in Channel Flow with and Without Ice Cover University of Windsor Banting, Doug Presented in Session 4C Track 1: Urban Flood Risk Management and Adaptation CSCE2015-13: Evaluation of Stormwater Low Impact Development Practices for the Lake Simcoe Regions Ryerson University Barbet, Marc Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-78: Romaine Hydroelectric Complex – Scale Model Optimization of the Hydraulic Structures Lasalle|NHC Inc. 61 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Barron, Ron Presented In Session 4B Track 2: Experimental and Computational Hydraulics 1 CSCE2015-107: Experimental and Numerical Study of Shallow Flow past a Single Cylinder University of Windsor Bender, Michael Presented in Session 3C Track 2: Fluvial Hydraulics 1 CSCE2015-76: The Hydraulics of River Groynes / Spurs and their Application to the Bow River after the June 2013 Flood Golder Associates Ltd. Bentaiebi, Youssef Presented in Session 5C Track 1: Dam Breach and Landslide CSCE2015-85: Probabilistic Method to Evaluate the Peak Outflow of Dam Failures by Overtopping École Polytechnique de Montréal Bertrand, Nathalie Presented in Session 3D Track 3: Flood Hydraulics and Hydrology CSCE2015-109: 2d High Resolution River Flood Simulations in Urban Environment: Global Sensitivity Analysis for Spatial Ranking of Uncertain Parameters University of Nice Sophia Antipolis, France Binns, Andrew Presented in Session 4C Track 2: Urban Flood Risk Management and Adaptation CSCE2015-68: Application of Gauge-Adjusted Weather Radar for Hydrology Presented in Session 6C Track 1: Sediment and Transport Modeling CSCE2015-43: Variation in River Bed Morphology and Sediment Transport Rates during Flood Events The University of Western Ontario Presented in Session 6D Track 4: Fluvial Hydraulics 2 CSCE2015-69: Evaluation of Hydraulic Zone of Influence for Planktonic Entrainment at a Cooling Water Intake Structure in Lake Huron The University of Western Ontario Biron, P. Presented in Session 5C Track 4: Dam Breach and Landslide CSCE2015-106: Characteristics of Flow around Open Channel 90° Bends with Vanes Concordia University Biswas, Asim Presented in Session 3A Track 3: Climate Change Impacts and Adaptation 1 CSCE2015-86: Influences of Enso, Nao, And PDO on Canada’s Monthly Streamflow: Trends and Variability McGill University Blakely, Deighen Presented in Session 6D Track 2: Fluvial Hydraulics 2 CSCE2015-42: 1D Hydraulic Modelling on a Large and Complex Domain: Data Management and Model Setup Golder Associates Ltd. Blank, Martin Presented in Session 4D Track 1: Decision Support Systems CSCE2015-72: Converting Wastes to Resources: A Decision-Support Model for Short-Rotation Coppice Systems Planning and Management McGill University Bluteau, Cynthia Presented in Session 2D Track 6: Lake Hydraulics CSCE2015-123: Under-Ice Circulation in Lakes Driven by Salt Exclusion University of British Columbia Bomhof, James Presented in Session 3B Track 3: Hydroinformatics Tools CSCE2015-89: Estimation of Mean Monthly Flows at Ungauged Locations in the Maritimes and Pacific Hydrologic Regions National Research Council Canada 62 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Boucher, Marie-Amélie Presented in Session 3B Track 1: Hydroinformatics Tools CSCE2015-9: Breathing New Life to an Older Model: The Cequeau Tool for Flow and Water Temperature Simulations and Forecasting INRS-ETE Bourgeois, Gilles Presented in Session 4D Track 5: Decision Support Systems CSCE2015-74: 3D Hydraulic Modeling to Support Hydrotechnical Design and Decision-Making Process WSP Canada Inc. Brand, Jack Presented in Session 6D Track 4: Fluvial Hydraulics 2 CSCE2015-69: Evaluation of Hydraulic Zone of Influence for Planktonic Entrainment at a Cooling Water Intake Structure in Lake Huron University of Western Ontario Brown, David Presented in Session 3D Track 1: Flood Hydraulics and Hydrology CSCE2015-70: Two Dimensional Hydrodynamic Model Development for Complex Floodplain Studies KGS Group Burn, Donald H. Presented in Session 2C Track 1: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C1: Overview of Floodnet Presented in Session 2C Track 2: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C2: Flood Regimes in Canada: Learning From the Past and Preparing for the Future Presented in Session 4A Track 1: Climate Change Impacts and Adaptation 2 CSCE2015-82: Investigating Seasonal Modeling of Flow Series for Nashwaak River, Nb, Canada University of Waterloo Carr, Kara Presented in Session 2B Track 5: Some Emerging Technologies in Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B5: Sediment Transport Scaling and Self-Similarity: Application to the One-Dimensional Non-Equilibrium Suspended Sediment Transport Process University of California-Davis Chen, Z.Q. Presented in Session 2B Track 3: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrological Modeling Based Probable Maximum Precipitation Estimation Presented in Session 2B Track 6: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrologic Modeling-Based Flood Frequency Analysis for Cache Creek Watershed University of California-Davis Chi, Wanqing Presented in Session 6C Track 4: Sediment and Transport Modeling CSCE2015-126: Experimental and Numerical Modeling of Erosion and Sedimentation in Navigation Channel First Institute of Oceanography, China Chowdhury, Rocky Presented in Session 4C Track 4: Urban Flood Risk Management and Adaptation CSCE2015-58: Flow Development and Retention Times in a Vortex-Type Storm Water Retention Pond University of Saskatchewan Chu, Vincent H. Presented In Session 4B Track 3: Experimental and Computational Hydraulics 1 CSCE2015-114: Shear Instability in High-Speed Shallow Flows Presented In Session 4B Track 4: Experimental and Computational Hydraulics 1 CSCE2015-115: Mixing in Shallow Waters at High Froude Number McGill University 63 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Clark, Shawn Presented in Session 6C Track 2: Sediment and Transport Modeling CSCE2015-60: Using Suspended Sediment Particle Size Distributions to Characterize Sediment Transport on the Red River University of Manitoba Clohan, William Daley Presented in Session 5C Track 5: Dam Breach and Landslide CSCE2015-50: Three-Dimensional Numerical Simulations of Subaerial Landslide Generated Waves Golder Associates Ltd. Cornett, Andrew Presented in Session 1C Track 4: Coastal Hydraulics CSCE2015-39: An Efficient Use of a Physical Model to Verify the Performance of Coastal Structures at Two Harbours in Oman Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-21: Physical Modelling and Design Optimizations for President Kennedy Terminal, Brazil National Research Council of Canada Comfort, George Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-93: Design and Construction of a Ships Retention System in Beauharnois Canal along the St Lawrence Seaway Navigation System Geniglace Inc. Coulibaly, Paulin Presented in Session 2C Track 1: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C1: Overview of Floodnet Presented in Session 2C Track 2: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C2: Flood Regimes in Canada: Learning From the Past and Preparing for the Future Presented in Session 4D Track 2: Decision Support Systems CSCE2015-118: Use of Groundwater Table Variation to Optimize the Design of Shallow and Deep Monitoring Well Networks. McMaster University Crawford, Stephen S. Presented in Session 6D Track 4: Fluvial Hydraulics 2 CSCE2015-69: Evaluation of Hydraulic Zone of Influence for Planktonic Entrainment at a Cooling Water Intake Structure in Lake Huron University of Western Ontario Daneshvar, P. Presented in Session 5C Track 2: Dam Breach and Landslide CSCE2015-23: Modeling and Simulation of Tailings Dam Breaches Using SPH Concordia University Davies, Evan G. R. Presented in Session 4D Track 1: Decision Support Systems CSCE2015-72: Converting Wastes to Resources: A Decision-Support Model for Short-Rotation Coppice Systems Planning and Management McGill University Daviau, Jean-Luc Presented in Session 4D Track 5: Decision Support Systems CSCE2015-74: 3D Hydraulic Modeling to Support Hydrotechnical Design and Decision-Making Process WSP Canada Inc. Delaney, Patrick Presented in Session 4D Track 3: Decision Support Systems CSCE2015-54: Development and Operation of the Great Lakes Storm Surge Operational System Presented in Session 4D Track 4: Decision Support Systems CSCE2015-55: Using Detailed 2D Urban Floodplain Modelling to Inform Development Planning in Mississauga, On DHI Water & Environment 64 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Delestre, Olivier Presented in Session 3D Track 3: Flood Hydraulics and Hydrology CSCE2015-109: 2d High Resolution River Flood Simulations in Urban Environment: Global Sensitivity Analysis for Spatial Ranking of Uncertain Parameters University of Nice Sophia Antipolis, France Denault, Catherine Presented in Session 5D Track 4: Green Infrastructure Design and Land Use Changes CSCE2015-79: Comprehensive Numerical Model of the St. Lawrence Estuary Between Quebec City and Rimouski – Application to Hydrodynamics, Wave and Sediment Transport Lasalle|NHC Inc. Deslauriers, Simon Presented in Session 6C Track 5: Sediment and Transport Modeling CSCE2015-15: Automatic Calibration Tool for Two-Dimensional Hydraulic and Sediment Model for River Systems École polytechnique de Montréal Dhiman, Jaskaran Presented in Session 5A Track 4: Strategies for Efficient Water Resources Planning CSCE2015-133: Use of Super Absorbent Polymers (Hydrogels) to Promote Safe Use of Wastewater in Agriculture McGill University Dupuis, Pierre Presented in Session 3A Track 2: Climate Change Impacts and Adaptation 1 CSCE2015-61: The Lake Champlain-Haut Richelieu Hydric System: Climate and Anthropogenic Changes and Adaptation Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-73: Innovative Wave Analysis Approach for Decision-Making – Case Study: Mont-Louis Wharf Rehabilitation WSP Canada Inc. Duong Vo, Ngoc Presented in Session 2A Track 6: Hydrologic Extremes and Climate Change 2 CSCE2015-130: Future Flooding Increase: Prediction and Probable Cause – A Case Study of Vietnam Central Coastal Area University of Nice Sophia Antipolis, France Dyck, Miles Presented in Session 4D Track 1: Decision Support Systems CSCE2015-72: Converting Wastes to Resources: A Decision-Support Model for Short-Rotation Coppice Systems Planning and Management McGill University Ebrahimi, Mosen Presented in Session 3C Track 1: Fluvial Hydraulics 1 CSCE2015-51: Evaluation of Existing Equations for Estimating Bank Erosion in Meandering Streams Queen's University Ecran, Ali Presented in Session 2B Track 1: Some Emerging Technologies in Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B1: Ensemble Modeling of Hydrologic Processes at One Shot: Modeling Stochastic Kinematic Wave Open Channel by the Stochastic Method of Characteristics University of California-Davis El-Jabi, Nassir Poster 49: Environmental Flows Evaluation in New Brunswick University of Moncton Elsayed, Eman Presented in Session 5A Track 2: Strategies for Efficient Water Resources Planning CSCE2015-132: Role of Plantain Peel Biochar in Enhancing Safe Use of Untreated Wastewater Presented in Session 5A Track 4: Strategies for Efficient Water Resources Planning CSCE2015-133: Use of Super Absorbent Polymers (Hydrogels) to Promote Safe Use of Wastewater in Agriculture McGill University 65 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Elshorbagy, Amin Presented in Session 1B Track 2: Adaptive Water Management in a Changing Climate CSCE2015-27: Environmental Flow and Economy in the Bow River Basin: Reaching a Compromise through a Hydroeconomic Model Presented in Session 1B Track 3: Adaptive Water Management in a Changing Climate CSCE2015-28: Integrated Water Resource Management under Water Supply and Irrigation Development Uncertainty Poster 96: Balancing Economic and Environmental Protection Goals in Sustainable Water Resources Management in the Oldman River Basin University of Saskatchewan El Tahan, Abdelhamid Presented in Session 3B: HYDROINFORMATICS TOOLS CSCE2015-242: Design of Riprap by Optimization of Neural Network Input Using a Spread Sheet Arab Academy for Science Technology and Maritime Transport Estigoni, Marcus V. Poster 88: 2D Numerical Modelling of Sediment Trap Efficiency in a Multi-Basin Desander University of Sao Paulo Ferreira da Silva, Ana Maria Presented in Session 3C Track 1: Fluvial Hydraulics 1 CSCE2015-51: Evaluation of Existing Equations For Estimating Bank Erosion In Meandering Streams Queen's University Frank, Graham Presented in Session 1C Track 4: Coastal Hydraulics CSCE2015-39: An Efficient Use of a Physical Model to Verify the Performance of Coastal Structures at Two Harbours in Oman Presented in Session 6D Track 1: Fluvial Hydraulics 2 CSCE2015-141: Design and Hydrodynamic Modelling of Walleye Habitat Improvements in the Nipigon River W.F. Baird & Associates Coastal Engineers Ltd Frigon, Anne Presented in Session 2A Track 2: Hydrologic Extremes and Climate Change 2 CSCE2015-29: Probable Maximum Flood under Changing Climate Conditions for the Mattagami River Basin Ontario Power Generation Furber, Alison Presented in Session 6B Track 2: Sustainable Water Resources Management CSCE2015-66: Social Learning for Meaningful Participation: Transboundary Water Resource Management in the Great Lakes and St. Lawrence River McGill University G Millar, Robert Presented in Session 2A Track 1: Hydrologic Extremes and Climate Change 2 CSCE2015-80: Estimation of Design Stream Flow with Parametric Frequency Pairing Method University of British Columbia Gallant, Gord Presented in Session 4D Track 3: Decision Support Systems CSCE2015-54: Development and Operation of the Great Lakes Storm Surge Operational System DHI Water & Environment Gan, Thian Y. Presented in Session 2C Track 2: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C2: Flood Regimes in Canada: Learning From the Past and Preparing for the Future University of Waterloo Gaskin, Susan Presented in Session 1D Track 3: Turbulent Mixing and Entrainment CSCE2015-91: The Effect of a Turbulent Background on the Concentration Field of a High-Schmidt-Number Passive Scalar within a Turbulent Jet McGill University 66 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Gober, Patricia Presented in Session 1B Track 3: Adaptive Water Management in a Changing Climate CSCE2015-28: Integrated Water Resource Management under Water Supply and Irrigation Development Uncertainty University of Saskatchewan Goharrokhi, Masoud Presented in Session 6C Track 2: Sediment and Transport Modeling CSCE2015-60: Using Suspended Sediment Particle Size Distributions to Characterize Sediment Transport on the Red River University of Manitoba Gonda, Jordan Presented in Session 1B Track 2: Adaptive Water Management in a Changing Climate CSCE2015-27: Environmental Flow and Economy in the Bow River Basin: Reaching a Compromise through a Hydroeconomic Model University of Saskatchewan Gordon Putz, Anne Presented in Session 4C Track 4: Urban Flood Risk Management and Adaptation CSCE2015-58: Flow Development and Retention Times in a Vortex-Type Storm Water Retention Pond University of Saskatchewan Gourbesville, Philippe Presented in Session 2A Track 6: Hydrologic Extremes and Climate Change 2 CSCE2015-130: Future Flooding Increase: Prediction and Probable Cause – A Case Study of Vietnam Central Coastal Area Presented in Session 3D Track 3: Flood Hydraulics and Hydrology CSCE2015-109: 2d High Resolution River Flood Simulations in Urban Environment: Global Sensitivity Analysis for Spatial Ranking of Uncertain Parameters Keynote lecture 4: Challenges of the Water Information System: Needs and Opportunities University of Nice Sophia Antipolis, France Grenon, Geneviève Presented in Session 6B Track 2: Sustainable Water Resources Management CSCE2015-66: Social Learning for Meaningful Participation: Transboundary Water Resource Management in the Great Lakes and St. Lawrence River McGill University Groux, François Presented in Session 4A Track 4: Climate Change Impacts and Adaptation 2 CSCE2015-83: Analysis and Monitoring of Watercourses in Urban Environments for Sustainable Development and Adaptation to Climate Change – The Lorette River Case Study. WSP Canada Guillemette, Nicolas Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-73: Innovative Wave Analysis Approach for Decision-Making – Case Study: Mont-Louis Wharf Rehabilitation Presented in Session 4D Track 5: Decision Support Systems CSCE2015-74: 3D Hydraulic Modeling to Support Hydrotechnical Design and Decision-Making Process WSP Canada Inc. Gunsolus, Etta H. Presented in Session 6C Track 1: Sediment and Transport Modeling CSCE2015-43: Variation in River Bed Morphology and Sediment Transport Rates During Flood Events The University of Western Ontario Guo, Yiping Presented in Session 1A Track 3: Hydrologic Extremes and Climate Change 1 CSCE2015-46: Changes in Heavy Rainstorm Characteristics with Time and Temperature Presented in Session 4D Track 2: Decision Support Systems CSCE2015-118: Use of Groundwater Table Variation to Optimize the Design of Shallow and Deep Monitoring Well Networks. McMaster University 67 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Han, S.S. Presented in Session 5C Track 4: Dam Breach and Landslide CSCE2015-106: Characteristics of Flow around Open Channel 90° Bends with Vanes Concordia University Hansen, Henrik Presented in Session 4D Track 3: Decision Support Systems CSCE2015-54: Development and Operation of the Great Lakes Storm Surge Operational System DHI Water & Environment Hasan, Mohammad Sabbir Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-33: Abrasion of Hydraulic Structures Concrete Surface by Water-Borne Sand Concordia University Hasanloo, Davood Presented in Session 2D Track 3: Lake Hydraulics CSCE2015-110: Brackish Pit Lakes Approaching Fall Turnover University of British Columbia Hassan, Eman Presented in Session 3B Track 2: Hydroinformatics Tools CSCE2015-65: L-Moments Based Novel Record-Extension Technique for Short-Gauged Water Quality Parameters McGill University Hassanzadeh, Elmira Presented in Session 1B Track 3: Adaptive Water Management in a Changing Climate CSCE2015-28: Integrated Water Resource Management under Water Supply and Irrigation Development Uncertainty University of Saskatchewan Heidari, Mehdi Presented In Session 4B Track 2: Experimental and Computational Hydraulics 1 CSCE2015-107: Experimental and Numerical Study of Shallow Flow past Tandem Cylinder University of Windsor Helsten, Mark, Presented in Session 4C Track 2: Urban Flood Risk Management and Adaptation CSCE2015-68: Application of Gauge-Adjusted Weather Radar for Hydrology The University of Western Ontario Huang, Jinhui Presented in Session 1A Track 2: Hydrologic Extremes and Climate Change 1 CSCE2015-95: Development of Regional Storm Frequency Maps for the Upper Yangtze River Basin and its Application to Assess Climate Change Nankai University, China Huard, David Presented in Session 4A Track 3: Climate Change Impacts and Adaptation 2 CSCE2015-32: Decision-Making under Climate Uncertainty in the Hydroelectric Sector Ouranos Ishida, K. Presented in Session 2B Track 2: Some Emerging Technologies in Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B2: Climate Change Projection of Snow Cover Over Three Mountainous in Northern California Presented in Session 2B Track 3: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrological Modeling Based Probable Maximum Precipitation Estimation Presented in Session 2B Track 6: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrologic Modeling-Based Flood Frequency Analysis for Cache Creek Watershed 68 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author University of California-Davis, USA Jang, S. Presented in Session 2B Track 2: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B2: Climate Change Projection of Snow Cover Over Three Mountainous in Northern California Presented in Session 2B Track 3: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrological Modeling Based Probable Maximum Precipitation Estimation Presented in Session 2B Track 6: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrologic Modeling-Based Flood Frequency Analysis for Cache Creek Watershed University of California-Davis, USA Jenkinson, Wayne Presented in Session 3B Track 3: Hydroinformatics Tools CSCE2015-89: Estimation of Mean Monthly Flows at Ungauged Locations in the Maritimes and Pacific Hydrologic Regions National Research Council Canada Jesudhas, Vimaldoss Presented In Session 4B Track 2: Experimental and Computational Hydraulics 1 CSCE2015-107: Experimental and Numerical Study of Shallow Flow past a Single Cylinder University of Windsor Jia, Benyou Presented in Session 6B Track 3: Sustainable Water Resources Management CSCE2015-17: Improved Knowledge-Based Cooperative Particle Swarm Optimization for Flood Control Reservoir Operation University of Western Ontario Jiongfeng, Chen Presented in Session 2B Track 2: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B2: Climate Change Projection of Snow Cover Over Three Mountainous in Northern California University of California-Davis, USA Joksimovic, Darko Presented in Session 4C Track 1: Urban Flood Risk Management and Adaptation CSCE2015-13: Evaluation of Stormwater Low Impact Development Practices for the Lake Simcoe Regions Ryerson University Katra, I Presented in Session 5D Track 5: Green Infrastructure Design and Land Use Changes CSCE2015-20: The Effect of Sand Grain Size on the Development of Cyanobacterial Crusts McGill University Kaatz, Ron Presented in Session 3D Track 1: Flood Hydraulics and Hydrology CSCE2015-70: Two Dimensional Hydrodynamic Model Development for Complex Floodplain Studies KGS Group Kang, Jasmine Presented in Session 2A Track 1: Hydrologic Extremes and Climate Change 2 CSCE2015-80: Estimation of Design Stream Flow with Parametric Frequency Pairing Method University of British Columbia Karimpour, Shooka Presented In Session 4B Track 3: Experimental and Computational Hydraulics 1 CSCE2015-114: Shear Instability in High-Speed Shallow Flows Presented In Session 4B Track 4: Experimental and Computational Hydraulics 1 CSCE2015-115: Mixing in Shallow Waters at High Froude Number McGill University Karnieli, A. 69 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Presented in Session 5D Track 5: Green Infrastructure Design and Land Use Changes CSCE2015-20: The Effect of Sand Grain Size on the Development of Cyanobacterial Crusts McGill University Kavvas, M. Levent Keynote lecture 2: Coupled Modeling of Atmospheric-Hydrologic Processes at Watershed Scale with Application to Ungauged and Sparsely-Gauged Watersheds Presented in Session 2B Track 1: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B1: Ensemble Modeling of Hydrologic Processes at One Shot: Modeling Stochastic Kinematic Wave Open Channel by the Stochastic Method of Characteristics Presented in Session 2B Track 2: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B2: Climate Change Projection of Snow Cover Over Three Mountainous in Northern California Presented in Session 2B Track 3: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrological Modeling Based Probable Maximum Precipitation Estimation Presented in Session 2B Track 6: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrologic Modeling-Based Flood Frequency Analysis for Cache Creek Watershed University of California-Davis Kenny, Genevieve Presented in Session 4C Track 3: Urban Flood Risk Management And Adaptation CSCE2015-53: Design of a Novel Vortex Drop Structure for Large Stormwater Flows Presented in Session 6B Track 5: Sustainable Water Resources Management CSCE2015-77: CFD Modeling of a Lakewater Cooling Intake RV Anderson Associates Limited Khalil, Bahaa Presented in Session 3A Track 3: Climate Change Impacts and Adaptation 1 CSCE2015-86: Influences of Enso, Nao, and PDO on Canada’s Monthly Streamflow: Trends and Variability Presented in Session 3B Track 2: Hydroinformatics Tools CSCE2015-65: L-Moments Based Novel Record-Extension Technique for Short-Gauged Water Quality Parameters McGill University Khaliq, Naveed M. Presented In Session 3B: Hydroinformatics Tools CSCE2015-89: Estimation of Mean Monthly Flows at Ungauged Locations in the Maritimes and Pacific Hydrologic Regions Poster 94: CSCE2015-94: Projected Changes to short and Long-Duration Precipitation Extremes over the Greater Montreal Area based on Regional Climate Model Simulations National Research Council Canada Kheradmand, Saeideh Presented in Session 1D Track 1: Turbulent Mixing and Entrainment CSCE2015-127: Numerical and Experimental Investigation of Saline Discharges in Stationary Ambient University of Ottawa Kheirkhah, Hossein Presented in Session 1D Track 1: Turbulent Mixing and Entrainment CSCE2015-127: Numerical and Experimental Investigation of Saline Discharges in Stationary Ambient Presented in Session 1D Track 2: Turbulent Mixing And Entrainment CSCE2015-116: Experimental and Numerical Study of Thermal Buoyant Wall Jet in Calm Ambient Water University of Ottawa 70 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Klyszejko, Erika Presented in Session 3B Track 3: Hydroinformatics Tools CSCE2015-89: Estimation of Mean Monthly Flows at Ungauged Locations in the Maritimes and Pacific Hydrologic Regions National Research Council Canada Koenig, Kristina Presented in Session 2A Track 2: Hydrologic Extremes and Climate Change 2 CSCE2015-29: Probable Maximum Flood under Changing Climate Conditions for the Mattagami River Basin Ontario Power Generation Knox, Paul Presented in Session 1C Track 4: Coastal Hydraulics CSCE2015-39: An Efficient Use of a Physical Model to Verify the Performance of Coastal Structures at Two Harbours in Oman National Research Council of Canada Krygier, Richard Presented in Session 4D Track 1: Decision Support Systems CSCE2015-72: Converting Wastes to Resources: A Decision-Support Model for Short-Rotation Coppice Systems Planning and Management McGill University Lamothe, Guillaume Presented in Session 1C Track 2: Coastal Hydraulics CSCE2015-36: Optimal Use of Delft 3D Software for Wave Induced Coastal EROSION Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-21: Physical Modelling and Design Optimizations for President Kennedy Terminal, Brazil École Polytechnique de Montréal Langford, Mathew Presented in Session 6D Track 5: Fluvial Hydraulics 2 CSCE2015-19: Computational Modeling of Thermally Stratified Reservoirs Upstream of Hydropower Facilities Amec Foster Wheeler Environment and Infrastructure Larabi, Samah Presented in Session 3B Track 1: Hydroinformatics Tools CSCE2015-9: Breathing New Life to an Older Model: The Cequeau Tool for Flow and Water Temperature Simulations and Forecasting INRS-ETE Latraverse, Marco Presented in Session 3B Track 1: Hydroinformatics Tools CSCE2015-9: Breathing New Life to an Older Model: The Cequeau Tool for Flow and Water Temperature Simulations and Forecasting INRS-ETE Laval, Bernard Presented in Session 5C Track 5: Dam Breach and Landslide CSCE2015-50: Three-Dimensional Numerical Simulations of Subaerial Landslide Generated Waves Golder Associates Ltd. Lavictoire, Alexandra Presented in Session 1C Track 3: Coastal Hydraulics CSCE2015-30: An Experimental Investigation of Bore-Induced Scour Around a Circular Structure University of Ottawa Lawrence, Gregory Presented in Session 2D Track 1: Lake Hydraulics CSCE2015-138: Potential Mixing Mechanisms in End Pit Lakes Presented in Session 2D Track 2: Lake Hydraulics CSCE2015-110: Brackish Pit Lakes Approaching Fall Turnover Presented in Session 2D Track 4: Lake Hydraulics CSCE2015-122: Effects of Spectral Variation in the Attenuation Co-Efficient on the Heating of Lakes Presented in Session 2D Track 5: Lake Hydraulics CSCE2015-117: Echosoundings in Base Mine Lake 71 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Presented in Session 2D Track 6: Lake Hydraulics CSCE2015-123: Under-Ice Circulation in Lakes Driven by Salt Exclusion Presented In Session 4B Track 1: Experimental and Computational Hydraulics 1 CSCE2015-121: Undular Waves In Subcritical Flow Over An Obstacle Presented in Session 5D Track 1: Green Infrastructure Design and Land Use Changes CSCE2015-124: Tidal In-Stream Power Resource Potential University of British Columbia Leach, James Presented in Session 4D Track 2: Decision Support Systems CSCE2015-118: Use of Groundwater Table Variation to Optimize the Design of Shallow and Deep Monitoring Well Networks. McMaster University Lee, Joseph Hun-wi Keynote lecture 3: Environmental Hydraulics of Chlorine Disinfection for the Hong Kong Harbour Area Treatment Scheme Hong Kong University of Science and Technology Li, James Presented in Session 4C Track 1: Urban Flood Risk Management and Adaptation CSCE2015-13: Evaluation of Stormwater Low Impact Development Practices for the Lake Simcoe Regions Ryerson University Li, S. Samuel Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-33: Abrasion of Hydraulic Structures Concrete Surface by Water-Borne Sand Presented in Session 6D Track 3: Fluvial Hydraulics 2 CSCE2015-8: Assessment of CFD Modelling Methods for Predicting Turbulent Flow and Bed Shear Stress Around Bridge Piers Concordia University Li, Yu Presented in Session 1A Track 2: Hydrologic Extremes and Climate Change 1 CSCE2015-95: Development of Regional Storm Frequency Maps for the Upper Yangtze River Basin and its Application to Assess Climate Change Nankai University, China Liu, Lei Presented in Session 5A Track 3: Strategies for Efficient Water Resources Planning CSCE2015-10: Development of a Reilp Approach for Long-Term Planning of Warm System in Saudi Arabia Dalhousie University Liu, Yanling Presented in Session 6C Track 4: Sediment and Transport Modeling CSCE2015-126: Experimental and Numerical Modeling of Erosion and Sedimentation in Navigation Channel First Institute of Oceanography, China Lorrain, Nick Presented in Session 4D Track 4: Decision Support Systems CSCE2015-55: Using Detailed 2D Urban Floodplain Modelling to Inform Development Planning in Mississauga, On DHI Water & Environment Ma, Wenqi Presented in Session 6B Track 4: Sustainable Water Resources Management CSCE2015-215: Application of Water Jet Cavitation on Pipeline Cleaning University of Windsor Mahdi, Tew-Fik Presented in Session 1C Track 2: Coastal Hydraulics CSCE2015-36: Optimal Use of Delft 3D Software for Wave Induced Coastal EROSION Presented in Session 5C Track 1: Dam Breach and Landslide 72 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author CSCE2015-85: Probabilistic Method to Evaluate the Peak Outflow of Dam Failures by Overtopping Presented in Session 6C Track 5: Sediment and Transport Modeling CSCE2015-15: Automatic Calibration Tool for Two-Dimensional Hydraulic and Sediment Model for River Systems École Polytechnique de Montréal Mahlujy, Keyvan Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-21: Physical Modelling and Design Optimizations for President Kennedy Terminal, Brazil National Research Council of Canada Marche, Claude Presented in Session 5C Track 1: Dam Breach and Landslide CSCE2015-85: Probabilistic Method to Evaluate the Peak Outflow of Dam Failures by Overtopping École Polytechnique de Montréal Marin, Saul Presented in Session 3C Track 2: Fluvial Hydraulics 1 CSCE2015-76: The Hydraulics of River Groynes / Spurs and their Application to the Bow River After the June 2013 Flood Golder Associates Ltd. Ltd. Majano, Bernardo Presented in Session 4C Track 3: Urban Flood Risk Management and Adaptation CSCE2015-53: Design of a Novel Vortex Drop Structure for Large Stormwater Flows Presented in Session 6B Track 5: Sustainable Water Resources Management CSCE2015-77: CFD Modeling of a Lakewater Cooling Intake RV Anderson Associates Limited Mannan, Abdul Ehsan Presented in Session 5A Track 2: Strategies For Efficient Water Resources Planning CSCE2015-132: Role of Plantain Peel Biochar in Enhancing Safe Use of Untreated Wastewater Presented in Session 5A Track 4: Strategies For Efficient Water Resources Planning CSCE2015-133: Use of Super Absorbent Polymers (Hydrogels) to Promote Safe Use of Wastewater in Agriculture McGill University Martin, Violeta Presented in Session 4A Track 5: Climate Change Impacts and Adaptation 2 CSCE2015-44: Predicted Changes in Peace River Channel Morphology and Sediment Transport Related to the Site C Clean Energy Project Presented in Session 5B Track 5: Experimental and Computational Hydraulics 2 CSCE2015-38: Hydrodynamic Modelling of Intakes for Run-Of-River Hydroelectric Projects Knight Piesold Ltd. Massé, Alexandre Presented in Session 2A Track 4: Hydrologic Extremes and Climate Change 2 CSCE2015-84: Climate Change and Storm Surges in the Hudson and James Bays LaSalle|NHC Inc. Mazurek, Kerry Presented in Session 4C Track 4: Urban Flood Risk Management and Adaptation CSCE2015-58: Flow Development and Retention Times in a Vortex-Type Storm Water Retention Pond University of Saskatchewan McBean, Ed Keynote lecture 1: Water Security – Priority Needs in a Climate Changing World University of Guelph McGrath, Heather Presented in Session 3D Track 2: Flood Hydraulics and Hydrology CSCE2015-62: Framework For The Development Of Flood Inundation Maps At The Press Of A Button Poster 67: Flood Risk Assessment Using MS Excel Spreadsheet: A Case Study of Fredericton (New Brunswick) University of New Brunswick 73 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author McKee, Jack Presented in Session 4C Track 2: Urban Flood Risk Management and Adaptation CSCE2015-68: Application of Gauge-Adjusted Weather Radar for Hydrology The University of Western Ontario McKibbon, Justin Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-73: Innovative Wave Analysis Approach for Decision-Making – Case Study: Mont-Louis Wharf Rehabilitation WSP Canada Inc. Medema, Wietske Presented in Session 6B Track 2: Sustainable Water Resources Management CSCE2015-66: Social Learning for Meaningful Participation: Transboundary Water Resource Management in the Great Lakes and St. Lawrence River McGill University Menendez-Pidal, Gabriel Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-93: Design and Construction of a Ships Retention System in Beauharnois Canal along the St Lawrence Seaway Navigation System Geniglace Inc. Mereu, Tim Presented in Session 4D Track 4: Decision Support Systems CSCE2015-55: Using Detailed 2D Urban Floodplain Modelling to Inform Development Planning in Mississauga, On DHI Water & Environment Métivier, Vincent Presented in Session 4D Track 5: Decision Support Systems CSCE2015-74: 3D Hydraulic Modeling to Support Hydrotechnical Design and Decision-Making Process WSP Canada Inc. Mitobe, Yuta Presented in Session 1C Track 1: Coastal Hydraulics CSCE2015-18: Recovery of Concave Shoreline Induced by the 2011 Tokoku Tsunami Tohoku University, Japan Mladjic, Bratislav Poster 94: Projected Changes to Short - and Long - Duration Precipitation Extremes over the Greater Montreal Area Using Regional Climate Model Simulations National Research Council Canada Mohamed, Hossam Presented in Session 5A Track 5: Strategies for Efficient Water Resources Planning CSCE2015-48: Statistical Analysis of Morphometric and Hydrologic Parameters in Arid Regions Arab Academy for Science Technology and Maritime Transport Mohammadian, Majid Presented in Session 1D Track 1: Turbulent Mixing and Entrainment CSCE2015-127: Numerical and Experimental Investigation of Saline Discharges in Stationary Ambient Presented in Session 1D Track 2: Turbulent Mixing and Entrainment CSCE2015-116: Experimental and Numerical Study of Thermal Buoyant Wall Jet in Calm Ambient Water University of Ottawa Muñoz, Victor Presented in Session 5D Track 2: Green Infrastructure Design and Land Use Changes CSCE2015-31: Using Regional Data Exploration to Improve Understanding of Local Hydrologic Parameters: Three Practical Cases in Canada, Mexico and Turkey SRK Consulting 74 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Mydlarski, Laurent Presented in Session 1D Track 3: Turbulent Mixing And Entrainment CSCE2015-91: The Effect of a Turbulent Background on the Concentration Field of a High-Schmidt-Number Passive Scalar within a Turbulent Jet McGill University Nalley, Deasy Presented in Session 3A Track 3: Climate Change Impacts and Adaptation 1 CSCE2015-86: Influences of Enso, Nao, And PDO on Canada’s Monthly Streamflow: Trends and Variability McGill University Nassar, Yasmin Presented in Session 2D Track 4: Lake Hydraulics CSCE2015-122: Effects of Spectral Variation in the Attenuation Co-Efficient on the Heating of Lakes University of British Columbia Nastev, Miroslav Presented in Session 3D Track 2: Flood Hydraulics and Hydrology CSCE2015-62: Framework for the Development of Flood Inundation Maps at the Press of a Button University of New Brunswick Nzediegwu, Christopher Presented in Session 5A Track 2: Strategies For Efficient Water Resources Planning CSCE2015-132: Role of Plantain Peel Biochar in Enhancing Safe Use of Untreated Wastewater McGill University Nazemi, Ali Presented in Session 1B Track 3: Adaptive Water Management In A Changing Climate CSCE2015-28: Integrated Water Resource Management Under Water Supply and Irrigation Development Uncertainty University of Saskatchewan Nguyen, Huy T. Presented in Session 4D Track 1: Decision Support Systems CSCE2015-72: Converting Wastes to Resources: A Decision-Support Model for Short-Rotation Coppice Systems Planning and Management McGill University Nguyen, Van-Thanh-Van Presented in Session 1A Track 1: Hydrologic Extremes and Climate Change 1 CSCE2015-1A1: An Integrated Extreme Rainfall Modeling Tool for Climate Change Impacts and Adaptation in Urban Areas Presented in Session 2C Track 1: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C1: Overview of Floodnet Presented in Session 2C Track 3: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C3: Development of New Methods for Updating IDF Curves in Canada Presented in Session 4A Track 2: Climate Change Impacts and Adaptation 2 CSCE2015-4A2: Comparison of Multisite and Single-Site Temperature Downscaling Effects on Streamflow and Runoff Simulation McGill University Nguyen, Van Thinh Presented in Session 3C Track 3: Fluvial Hydraulics 1 CSCE2015-220: 3D Numerical Simulation of Turbulent Flow and Pollutant Transport in Meandering Channels Seoul National University, Korea Nistor, Ioan Presented in Session 1C Track 3: Coastal Hydraulics CSCE2015-30: An Experimental Investigation of Bore-Induced Scour around a Circular Structure Presented in Session 4A Track 5: Climate Change Impacts and Adaptation 2 CSCE2015-44: Predicted Changes in Peace River Channel Morphology and Sediment Transport Related to the Site C Clean Energy Project University of Ottawa 75 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Nokken, Michelle Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-33: Abrasion of Hydraulic Structures Concrete Surface By Water-Borne Sand Concordia University Nzediegwu, Christopher Presented in Session 5A Track 4: Strategies For Efficient Water Resources Planning CSCE2015-133: Use of Super Absorbent Polymers (Hydrogels) to Promote Safe Use of Wastewater in Agriculture McGill University Ohara, N. Presented in Session 2B Track 2: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B2: Climate Change Projection of Snow Cover Over Three Mountainous in Northern California Presented in Session 2B Track 3: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrological Modeling Based Probable Maximum Precipitation Estimation University of California-Davis, USA Onyshko, Peter Presented in Session 6D Track 2: Fluvial Hydraulics 2 CSCE2015-42: 1D Hydraulic Modelling on a Large and Complex Domain: Data Management and Model Setup Golder Associates Ltd. Ltd. Oosting, Andrew Presented in Session 3C Track 2: Fluvial Hydraulics 1 CSCE2015-76: The Hydraulics of River Groynes / Spurs and their Application to the Bow River After the June 2013 Flood Golder Associates Ltd. Ltd. Ouahit, Leila Presented in Session 4A Track 4: Climate Change Impacts and Adaptation 2 CSCE2015-83: Analysis and Monitoring of Watercourses in Urban Environments for Sustainable Development and Adaptation to Climate Change – The Lorette River Case Study. WSP Canada Ouellet-Proulx, Sébastien Presented in Session 3B Track 1: Hydroinformatics Tools CSCE2015-9: Breathing New Life to an Older Model: The Cequeau Tool for Flow and Water Temperature Simulations and Forecasting INRS-ETE Palynchuk, Barry Presented in Session 1A Track 3: Hydrologic Extremes and Climate Change 1 CSCE2015-46: Changes in Heavy Rainstorm Characteristics with Time and Temperature AECOM Canada Ltd. Peck, Angela Presented in Session 2A Track 5: Hydrologic Extremes and Climate Change 2 CSCE2015-35: Climate Change Influenced Flooding and Sea Level Rise on Canada's West Coast University of Western Ontario Pelletier, Pierre Presented in Session 4A Track 4: Climate Change Impacts and Adaptation 2 CSCE2015-83: Analysis and Monitoring of Watercourses in Urban Environments for Sustainable Development and Adaptation to Climate Change – The Lorette River Case Study Presented in Session 4D Track 5: Decision Support Systems CSCE2015-74: 3D Hydraulic Modeling to Support Hydrotechnical Design and Decision-Making Process WSP Canada Inc. Perdikaris, John Presented in Session 2A Track 2: Hydrologic Extremes and Climate Change 2 CSCE2015-29: Probable Maximum Flood Under Changing Climate Conditions for the Mattagami River Basin Ontario Power Generation 76 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Perez-Alvarado, Alejandro Presented in Session 1D Track 3: Turbulent Mixing And Entrainment CSCE2015-91: The Effect of a Turbulent Background on the Concentration Field of a High-Schmidt-Number Passive Scalar within a Turbulent Jet McGill University Pieters, Roger Presented in Session 2D Track 2: Lake Hydraulics CSCE2015-110: Brackish Pit Lakes Approaching Fall Turnover Presented in Session 2D Track 4: Lake Hydraulics CSCE2015-122: Effects of Spectral Variation in the Attenuation Co-Efficient on the Heating of Lakes Presented in Session 2D Track 5: Lake Hydraulics CSCE2015-117: Echosoundings in Base Mine Lake Presented in Session 2D Track 6: Lake Hydraulics CSCE2015-123: Under-Ice Circulation in Lakes Driven by Salt Exclusion University of British Columbia Polsinelli, James Presented in Session 2B Track 4: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B4: Scaling Method for the Saturated Groundwater Equations University of California-Davis Prasher, Shiv Om Presented in Session 5A Track 2: Strategies For Efficient Water Resources Planning CSCE2015-132: Role of Plantain Peel Biochar in Enhancing Safe Use of Untreated Wastewater Presented in Session 5A Track 4: Strategies For Efficient Water Resources Planning CSCE2015-133: Use of Super Absorbent Polymers (Hydrogels) to Promote Safe Use of Wastewater in Agriculture McGill University Qi, Zhiming Presented in Session 3A Track 1: Climate Change Impacts and Adaptation 1 CSCE2015-99: Modeling Impacts of Climate Change on Hydrologic Processes in Subsurface Drained Croplands Using an Agricultural System Model McGill University Qu, Junying Presented in Session 3D Track 1: Flood Hydraulics and Hydrology CSCE2015-70: Two Dimensional Hydrodynamic Model Development for Complex Floodplain Studies Presented In Session 4B Track 5: Experimental and Computational Hydraulics 1 CSCE2015-104: V-Shaped Multi-Slit Weir Systems Presented in Session 5B Track 2: Experimental and Computational Hydraulics 2 CSCE2015-103: Simulation of Flow Past an Open Channel Floor Slot Presented in Session 5B Track 3: Experimental and Computational Hydraulics 2 CSCE2015-102: Nonlinear PLS Method for Side Weir Flows KGS Group Quilty, John Presented in Session 4C Track 5: Urban Flood Risk Management and Adaptation CSE2015-16: Determining the Optimal Time Delay Embedding Parameters of Urban Water Supply System Signals McGill University Rahman, Mahzabeen Presented in Session 4A Track 2: Climate Change Impacts and Adaptation 2 CSCE2015-4A2: Comparison of Multisite and Single-Site Temperature Downscaling Effects on Streamflow and Runoff Simulation McGill University 77 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Ramamurthy, Amruthur Presented in Session 1D Track 4: Turbulent Mixing and Entrainment CSCE2015-105: A Procedure to Measure Reynolds Stresses in the Flow Field of Hydroclones Presented In Session 4B Track 5: Experimental and Computational Hydraulics 1 CSCE2015-104: V-Shaped Multi-Slit Weir Systems Presented in Session 5B Track 2: Experimental and Computational Hydraulics 2 CSCE2015-103: Simulation of Flow past an Open Channel Floor Slot Presented in Session 5B Track 3: Experimental and Computational Hydraulics 2 CSCE2015-102: Nonlinear PLS Method for Side Weir Flows Presented in Session 5B Track 4: Experimental and Computational Hydraulics 2 CSCE2015-100: Discharge Characteristics of Siphon Spillways Presented in Session 5C Track 4: Dam Breach and Landslide CSCE2015-106: Characteristics of Flow around Open Channel 90° Bends with Vanes Concordia University Rasmussen, Peter Presented in Session 1A Track 4: Hydrologic Extremes and Climate Change 1 CSCE2015-87: Investigation of the Impact of Climate Change on Flooding in the Red River Basin Presented in Session 2C Track 1: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C1: Overview of Floodnet Presented in Session 2C Track 2: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C2: Flood Regimes in Canada: Learning From the Past and Preparing for the Future Presented in Session 2C Track 5: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C5: Evaluation of Flood Forecasting and Warning Systems in Canada University of Manitoba Renaud, Steve Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-73: Innovative Wave Analysis Approach for Decision-Making – Case Study: Mont-Louis Wharf Rehabilitation WSP Canada Inc. Rennie, Colin Presented in Session 1C Track 3: Coastal Hydraulics CSCE2015-30: An Experimental Investigation of Bore-Induced Scour around a Circular Structure University of Ottawa Reilly, Kate Presented in Session 1B Track 1: Adaptive Water Management In A Changing Climate CSCE2015-26: Perceptions Of Environmental Flows And Ecological Restoration – A Document Analysis McGill University Robb, Daniel Presented in Session 5C Track 3: Dam Breach and Landslide CSCE2015-41: Numerical Simulation of Dam Break Flows Using Depth-Averaged Hydrodynamic and Three-Dimensional CFD Models Northwest Hydraulic Consultants Rosu, Corina Presented in Session 2A Track 4: Hydrologic Extremes and Climate Change 2 CSCE2015-84: Climate Change and Storm Surges in the Hudson and James Bays LaSalle|NHC Inc. Roussinova, Vesselina Presented In Session 4B Track 2: Experimental and Computational Hydraulics 1 CSCE2015-107: Experimental and Numerical Study of Shallow Flow Past a Single Cylinder University of Windsor Roy, René Presented in Session 4A Track 3: Climate Change Impacts And Adaptation 2 CSCE2015-32: Decision-Making under Climate Uncertainty in the Hydroelectric Sector Ouranos 78 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Rozenstein, Offer Presented in Session 5D Track 5: Green Infrastructure Design and Land Use Changes CSCE2015-20: The Effect of Sand Grain Size on the Development of Cyanobacterial Crusts McGill University Safa, Hamideh Hosseini Poster 96: Balancing Economic and Environmental Protection Goals in Sustainable Water Resources Management in the Oldman River Basin University of Saskatchewan Sakib, Nazmus Presented in Session 6D Track 3: Fluvial Hydraulics 2 CSCE2015-8: Assessment of CFD Modelling Methods for Predicting Turbulent Flow and Bed Shear Stress Around Bridge Piers University of Alberta Savard, Jean-Pierre Presented in Session 2A Track 4: Hydrologic Extremes and Climate Change 2 CSCE2015-84: Climate Change and Storm Surges in the Hudson and James Bays LaSalle|NHC Inc. Seidou, Ousmane Presented in Session 1D Track 1: Turbulent Mixing and Entrainment CSCE2015-127: Numerical and Experimental Investigation of Saline Discharges in Stationary Ambient Presented in Session 2A Track 3: Hydrologic Extremes and Climate Change 2 CSCE2015-11: Anticipated Alteration in Extreme Events Utilizing Bias Correction of Two Climate Model Outputs for the South Nation Watershed University of Ottawa Serrer, Martin Presented in Session 3B Track 3: Hydroinformatics Tools CSCE2015-89: Estimation of Mean Monthly Flows at Ungauged Locations in the Maritimes and Pacific Hydrologic Regions National Research Council Canada Shifflett, Mark Presented in Session 4C Track 2: Urban Flood Risk Management and Adaptation CSCE2015-68: Application of Gauge-Adjusted Weather Radar for Hydrology The University of Western Ontario Simonovic, Slobodan P. Presented in Session 1B Track 4: Adaptive Water Management In A Changing Climate CSCE2015-129: Dynamic River Modelling for Flood Risk Management Presented in Session 2A Track 5: Hydrologic Extremes and Climate Change 2 CSCE2015-35: Climate Change Influenced Flooding and Sea Level Rise on Canada's West Coast Presented in Session 6B Track 3: Sustainable Water Resources Management CSCE2015-17: Improved Knowledge-Based Cooperative Particle Swarm Optimization for Flood Control Reservoir Operation University of Western Ontario Stefanakis, E. Presented in Session 3D Track 2: Flood Hydraulics and Hydrology CSCE2015-62: Framework for the Development of Flood Inundation Maps at the Press of a Button University of New Brunswick St-Hilaire, André Presented in Session 3B Track 1: Hydroinformatics Tools CSCE2015-9: Breathing New Life to an Older Model: The Cequeau Tool for Flow and Water Temperature Simulations and Forecasting INRS-ETE Stitou, Adnane Poster: CSCE2015-92: Mixing Coefficients and Their Importance in Modeling Waterways University of Ottawa 79 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Swainson, Rob Presented in Session 6D Track 1: Fluvial Hydraulics 2 CSCE2015-141: Design and Hydrodynamic Modelling of Walleye Habitat Improvements in the Nipigon River W.F. Baird & Associates Coastal Engineers Ltd Sun, Hongyi Presented in Session 6B Track 4: Sustainable Water Resources Management CSCE2015-215: Application of Water Jet Cavitation on Pipeline Cleaning University of Windsor Tadayon, Rahim Presented in Session 1D Track 4: Turbulent Mixing and Entrainment CSCE2015-105: A Procedure to Measure Reynolds Stresses in the Flow Field of Hydroclones Presented in Session 5B Track 4: Experimental and Computational Hydraulics 2 CSCE2015-100: Discharge Characteristics of Siphon Spillways Concordia University Tanaka, Hitoshi Presented in Session 1C Track 1: Coastal Hydraulics CSCE2015-18: Recovery of Concave Shoreline Induced by the 2011 Tokoku Tsunami Tohoku University, Japan Tang, Gaven Presented in Session 6D Track 2: Fluvial Hydraulics 2 CSCE2015-42: 1D Hydraulic Modelling on a Large and Complex Domain: Data Management and Model Setup Golder Associates Ltd. Tedford, Edmund Presented in Session 2D Track 5: Lake Hydraulics CSCE2015-117: Echosoundings in Base Mine Lake University of British Columbia Thiémonge, Nathalie Presented in Session 4A Track 3: Climate Change Impacts and Adaptation 2 CSCE2015-32: Decision-Making under Climate Uncertainty in the Hydroelectric Sector Ouranos Toan, T.Q. Presented in Session 2B Track 2: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-2B2: Climate Change Projection of Snow Cover Over Three Mountainous in Northern California University of California-Davis, USA Trinh, T. Presented in Session 2B Track 6: Some Emerging Technologies In Hydrologic Modeling (Special Session by University of CaliforniaDavis, USA) CSCE2015-239: Numerical Atmospheric Hydrologic Modeling-Based Flood Frequency Analysis for Cache Creek Watershed University of California-Davis Vasquez, Jose Presented in Session 5C Track 3: Dam Breach and Landslide CSCE2015-41: Numerical Simulation of Dam Break Flows Using Depth-Averaged Hydrodynamic and Three-Dimensional CFD Models Presented in Session 5C Track 5: Dam Breach and Landslide CSCE2015-50: Three-Dimensional Numerical Simulations of Subaerial Landslide Generated Waves Northwest Hydraulic Consultants Vieira, Michael Presented in Session 4A Track 3: Climate Change Impacts and Adaptation 2 CSCE2015-32: Decision-Making under Climate Uncertainty in the Hydroelectric Sector Ouranos 80 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Villeneuve, Marc Presented in Session 2A Track 4: Hydrologic Extremes and Climate Change 2 CSCE2015-84: Climate Change and Storm Surges in the Hudson and James Bays Presented in Session 5D Track 4: Green Infrastructure Design and Land Use Changes CSCE2015-79: Comprehensive Numerical Model of the St. Lawrence Estuary between Quebec City and Rimouski – Application to Hydrodynamics, Wave and Sediment Transport Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-78: Romaine Hydroelectric Complex – Scale Model Optimization of the Hydraulic Structures LaSalle|NHC Inc. Vo Cong, Hoang Presented in Session 1C Track 1: Coastal Hydraulics CSCE2015-18: Recovery of Concave Shoreline Induced by the 2011 Tokoku Tsunami Tohoku University, Japan Wiebe, Joshua Presented in Session 6D Track 1: Fluvial Hydraulics 2 CSCE2015-141: Design and Hydrodynamic Modelling of Walleye Habitat Improvements in the Nipigon River W.F. Baird & Associates Coastal Engineers Ltd Wheater, Howard Presented in Session 1B Track 2: Adaptive Water Management in a Changing Climate CSCE2015-27: Environmental Flow and Economy in the Bow River Basin: Reaching a Compromise through a Hydroeconomic Model Presented in Session 1B Track 3: Adaptive Water Management in a Changing Climate CSCE2015-28: Integrated Water Resource Management under Water Supply and Irrigation Development Uncertainty Poster 96: Balancing Economic and Environmental Protection Goals in Sustainable Water Resources Management in the Oldman River Basin University of Saskatchewan Wu, Shouhong Presented in Session 3C Track 2: Fluvial Hydraulics 1 CSCE2015-76: The Hydraulics of River Groynes / Spurs and their Application to the Bow River After the June 2013 Flood Golder Associates Ltd. Ltd. Wu, Peng Presented in Session 5B Track 1: Experimental and Computational Hydraulics 2 CSCE2015-206: Measurement of Scour Profiles around Bridge Piers in Channel Flow with and Without Ice Cover University of Windsor Xenopoulos, Marguerite A. Presented in Session 2C Track 1: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C1: Overview of Floodnet Presented in Session 2C Track 6: Floodnet - A Strategic Research Network on Floods in Canada CSCE2015-2C6: Risk Analysis of Physical, Socio-Economic, and Environmental Impacts of Floods Trent University Yeo, Myeong-Ho Presented in Session 1A Track 1: Hydrologic Extremes and Climate Change 1 CSCE2015-1A1: An Integrated Extreme Rainfall Modeling Tool for Climate Change Impacts and Adaptation in Urban Areas McGill University Yin, Qiao Presented in Session 4D Track 4: Decision Support Systems CSCE2015-55: Using Detailed 2D Urban Floodplain Modelling to Inform Development Planning in Mississauga, On DHI Water & Environment Yizhaq, H. Presented in Session 5D Track 5: Green Infrastructure Design and Land Use Changes CSCE2015-20: The Effect of Sand Grain Size on the Development of Cyanobacterial Crusts McGill University 81 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Index by Author Zaady, E. I Katra, A Karnieli, J Adamowski, H Yizhaq Presented in Session 5D Track 5: Green Infrastructure Design and Land Use Changes CSCE2015-20: The Effect of Sand Grain Size on the Development of Cyanobacterial Crusts McGill University Zadeh, Shabnam Mostofi Presented in Session 4A Track 1: Climate Change Impacts and Adaptation 2 CSCE2015-82: Investigating Seasonal Modeling of Flow Series for Nashwaak River, Nb, Canada University of Waterloo Zareie, Alireza Presented in Session 4A Track 2: Climate Change Impacts and Adaptation 2 CSCE2015-4A2: Comparison of Multisite and Single-Site Temperature Downscaling Effects on Streamflow and Runoff Simulation McGill University Zhong, Ping’an Presented in Session 6B Track 3: Sustainable Water Resources Management CSCE2015-17: Improved Knowledge-Based Cooperative Particle Swarm Optimization for Flood Control Reservoir Operation University of Western Ontario Zhu, David Z. Presented in Session 6C Track 4: Sediment and Transport Modeling CSCE2015-126: Experimental and Numerical Modeling of Erosion and Sedimentation in Navigation Channel Presented in Session 6D Track 5: Fluvial Hydraulics 2 CSCE2015-19: Computational Modeling of Thermally Stratified Reservoirs Upstream of Hydropower Facilities University of Alberta Department of Civil and Environmental Engineering Zsaki, Attila M. Presented in Session 5C Track 2: Dam Breach and Landslide CSCE2015-23: Modeling and Simulation of Tailings Dam Breaches Using Sph Presented in Session 6A Track 1: Hydraulic Structure Modeling and Design CSCE2015-33: Abrasion of Hydraulic Structures Concrete Surface by Water-Borne Sand Presented in Session 6D Track 3: Fluvial Hydraulics 2 CSCE2015-8: Assessment of CFD Modelling Methods for Predicting Turbulent Flow and Bed Shear Stress Around Bridge Piers Concordia University 82 CSCE 22nd Hydrotechnical Conference | Montreal, Quebec | April 29 - May 2, 2015 Thank you to the following companies for their support Gold Sponsors Silver Sponsor Bronze Sponsor Exhibitors
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