3 4th Hydrology & Water R esources Symposium 2012 S ydney, Australia 1 9-22 November 2012 V olume 1 of 2 I SBN: 978-1-63439-934-0 Printed from e-media with permission by: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 Some format issues inherent in the e-media version may also appear in this print version. Copyright© (2012) by Engineers Australia All rights reserved. Printed by Curran Associates, Inc. (2015) For permission requests, please contact Engineers Australia at the address below. Engineers Australia Engineering House 11 National Circuit Barton ACT 2600 Phone: +61 2 6270 6555 Fax: (02) 6273 1488 memberservices@engineersaustralia.org.au Additional copies of this publication are available from: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 USA Phone: 845-758-0400 Fax: 845-758-2634 Email: curran@proceedings.com Web: www.proceedings.com TABLE OF CONTENTS VOLUME 1 DESIGN RAINFALL AND FLOOD ESTIMATION I Undertaking Broadscale Flooding Assessments in Urban Catchments Without Drainage Asset Data .......................... 1 B.C. Phillips, S. Yu, T. Fang, A. Reid Probabilistic Losses for Design Flood Estimation: A Case Study in New South Wales ................................................... 9 Melanie Loveridge, Ataur Rahman Regionalisation of Rainfall Temporal Patterns in New South Wales for Application with the Monte Carlo Simulation Technique to Design Flood Estimation ................................................................................................ 17 Wilfredo Caballero, Ataur Rahman, Surendra Shrestha Drainage Design in Brunei Darussalam: Generation of Design Rainfall and Ocean Water Level Conditions ............................................................................................................................................................................ 25 Chris Nielsen, Hj Mohd Sidek bin Hj Mohd Yusof, Claus Pedersen, Henrik Madsen Joint Peak-Volume Design Flood Hydrograph Methodology for South Africa.............................................................. 34 Andre H.M. Gorgens GROUNDWATER AND GROUNDWATER/SURFACE WATER INTERACTIONS I Long-Term Salinity Changes in an Inland Aquifer, NSW, Australia ............................................................................. 43 Alexandra Badenhop, Wendy Timms OpenMI Coupling of FEFLOW and MIKE SHE ............................................................................................................. 52 K. Yamagata, M.B. Butts, J. Grooss, T.H. Clausen, D.N. Graham, V. Clausnitzer, R. Grundler, B. Monninkhoff “Qualitative Model Predictive Error Analysis'' --- A Protocol for a Simple Practical Application ............................. 60 Piotr A. Rzepecki Testing the Suitability of Modflow for Interpreting Pump Tests in a Hydraulically Fractured Well .......................... 68 Huw Morgan, Garry Willgoose QUANTIFYING AND MANAGING UNCERTAINTY I Volumetric Flow Measurements & Uncertainty Elements for in-situ Volumetric Testing ........................................... 76 Nurullah Ozbey Towards the Adoption of Uncertainty Assessment in Water Resources Models: the eWater Source Uncertainty Guideline ......................................................................................................................................................... 85 Julien Lerat, Luk Peeters, Quanxi Shao Decision Support and Uncertainty in Self-Supply Irrigation Areas ................................................................................ 93 Keirnan Fowler, Robert Donohue, Robert Morden, Jacqueline Durrant, Joel Hall Upscaling Hydraulic Processes and Properties to Assess Impacts on Groundwater from Coal Seam Gas Abstractions................................................................................................................................................................ 102 Catherine Moore, John Doherty Uncertainty Quantification of Hydrological Predictions Using a Hierarchical Error Model ..................................... 110 Ming Li, Q.J. Wang RIVER HYDRAULICS I Does the Critical Shields Stress for Sediment Transport Depend on Channel-Bed Slope? ......................................... 117 Ishraq Alfadhli, Shu-Qing Yang, Muttucumaru Sivakumar Troubleshooting a Complex Linked One- and Two-Dimensional Hydraulic Model.................................................... 129 Sam Marginson, Melanie Collett, Rod Watkinson, Lachlan Johnson Scour of Rock in Spillways --- A Review.......................................................................................................................... 136 Steven E. Pells, William L. Peirson, Lily Wu, Kurt Douglas Brisbane River Hydraulic Model to Probable Maximum Flood.................................................................................... 144 J.M. Charalambous River Restoration Using Pools and Riffles: Flow-Sediment Effects on Bedform Formation and Maintenance ....................................................................................................................................................................... 152 Jose F. Rodriguez, Gustavo A. Mazza de Almeida DESIGN RAINFALL AND FLOOD ESTIMATION II Estimation of Extreme Spatial Rainfall Intensities ......................................................................................................... 160 Bree Bennett, Martin Francis Lambert, Mark A. Thyer, Bryson Bates, Michael Leonard Defining Independence of Rainfall Events with a Partial Duration Series Approach ................................................. 169 Karin Xuereb, Janice Green Quality Controlling Daily Read Rainfall Data for the Intensity-Frequency-Duration (IFD) Revision Project................................................................................................................................................................................. 177 Janice Green, Fiona Johnson, Deacon McKay, Scott Podger, Michael Sugiyanto, Lionel Siriwardena Regionalisation of Rainfall Statistics for the IFD Revision Project ............................................................................... 185 Fiona Johnson, Karin Xuereb, Erwin Jeremiah, Janice Green To Every Flood There is a Season --- Especially in South-West Western Australia .................................................... 193 L.J. Pearce GROUNDWATER AND GROUNDWATER/SURFACE WATER INTERACTIONS II A Review of the Great Artesian Basin Water Resource Assessment ............................................................................. 202 James Hill Building on What We Had: The Evolution of Groundwater Management in the Lower Campaspe Valley .................................................................................................................................................................................. 208 Luke Richards, Brendan Cossens The Complexities of Groundwater Resource Management in the Central Victorian Mineral Springs Region ................................................................................................................................................................................. 216 Karina Joy, Brendan Cossens Western Sydney Saline Groundwater: Where's the Problem? ...................................................................................... 224 Sarah Taylor, R. Willem Vervoort QUANTIFYING AND MANAGING UNCERTAINTY II Improvement in Skills of Ensemble Streamflow Forecasting Through Model Updating with Ensemble Kalman Filter..................................................................................................................................................................... 232 Hongxing Zheng, Enli Wang, Q.J. Wang, Lu Zhang Improving Predictions Using Streamflow Uncertainty in Rainfall-Runoff Modelling ................................................ 240 Jorge L. Pena-Arancibia, Yongqiang Zhang, Daniel E. Pagendam, Neil R. Viney Improving Hydrological Model Prediction via Hierarchical Mixture of Experts ........................................................ 248 Erwin Jeremiah, Ashish Sharma Diagnosing Non-Stationary Behaviour in a Hydrological Model .................................................................................. 256 Seth Westra, Mark A. Thyer, Michael Leonard, Dmitri Kavetski, Martin Francis Lambert Towards a Recursive Bayesian Total Error Analysis Framework ................................................................................ 265 Amanda Newman, George Kuczera, Dmitri Kavetski RIVER HYDRAULICS II Using Joint Probability Analysis to Test Assumptions of Downstream Boundary Conditions for Flood Models in Areas Affected by Extreme Sea Levels ........................................................................................................... 274 Sam Marginson, Melanie Collett, Saima Aijaz Acoustic Doppler Technology and Estimating Manning Roughness Coefficients from Nikuradse's Equivalent Sand-Roughness ............................................................................................................................................. 282 Nurullah Ozbey Utilising Chiu's Probability Concept to Estimate Cross Sectional Mean Velocity from Single Velocity Measurement in Natural Rivers ....................................................................................................................................... 291 Nurullah Ozbey Simulation of River-Bed Evolution Due to Channel Widening...................................................................................... 299 Thomas Berchtold, David Vetsch, Volker Weitbrecht, Robert Boes Experimental Study of the Flow Structure Interactions Between Bridge Piers ........................................................... 308 Chij K. Shrestha, Alireza Keshavarzi, Hadi Khabbaz, James Ball INTEGRATED CATCHMENT MANAGEMENT In the Beginning There Was the Flood Study.................................................................................................................. 316 Karen Brakell, Craig Bearsley, Kate Stephens, Chiara Callipari Integrated Drainage Management and Flood Mitigation in Central Auckland, New Zealand................................... 325 Paul L. Miselis, Brian Sharman, Xeno Captain, Matthew Davis Lessons Learnt in Assessing Land-Use Changes in Local Catchments in New South Wales, Australia .................... 334 Marlene van der Sterren, Kate Hey-Cunningham, Anthony J. Pik Integrated Systems Analysis to Create Evidence Based Policies for Water Cycle Reform in Greater Melbourne .......................................................................................................................................................................... 346 Peter Coombes FLOODS AND PRECIPITATION EXTREMES I On the Relationship Between Site Specific Australian Flood Risk and Natural Variability in the Pacific, Indian and Southern Oceans ............................................................................................................................... 354 Anthony S. Kiem, Danielle C. Verdon-Kidd The Brigalow Catchment Study: Effects of Land Development on Peak Runoff Rate and Its Prediction in Central Queensland, Australia .................................................................................................................. 362 Craig Thornton, Bofu Yu LiDAR, Floodrisk and the Christchurch Earthquakes .................................................................................................. 370 Mike Gillooly, Greg Whyte Floodplain Development Strategy for the Murray River, Western Australia .............................................................. 380 R.D. Connolly, S. Rodgers STOCHASTIC HYDROLOGY Fine Timescale Continuous Rainfall Simulation Through Daily Rainfall Disaggregation .......................................... 388 Yeboah Gyasi-Agyei Sampling in Time and Space --- Inclusion of Rainfall Spatial Patterns and Tidal Influences in a Joint Probability Framework..................................................................................................................................................... 398 Kristen Sih, Peter Hill, Rory Nathan, Hamid Mirfenderesk Annual Maximum or Partial Duration Series: A Review............................................................................................... 407 Sri Srikanthan Use of CLIGEN to Simulate Climate Change in Southwest of Western Australia....................................................... 415 Parshin Vaghefi, Bofu Yu DROUGHT Modelling Evaporative Losses from the Darling River During Drought Using δ2H and δ18O .................................... 423 Catherine E. Hughes, Suzanne E. Hollins, Jagoda Crawford, Karina T. Meredith, Dioni I. Cendon Improved Modelling of Low Flows and Drought Impacts in Australian Catchments Using New Rainfall-Runoff Model SpringSIM .................................................................................................................................. 429 Avijeet Ramchurn Trend Analysis of Drought Using Standardised Precipitation Index (SPI) in Victoria, Australia ............................. 441 Siti Nazahiyah Rahmat, Niranjali Jayasuriya, Muhammed Bhuiyan Characterising Low Rainfall Events in Greater Melbourne Using Standard Precipitation Index ............................. 449 Shirley Gato-Trinidad CLIMATE CHANGE I Hydroclimate Baseline and Future Water Availability Projections for Water Resources Planning .......................... 461 Francis H.S. Chiew, David A. Post, Rae J. Moran Modelling High and Low Flows in a Changing Climate: Influence of Objective Function Selection ......................... 469 Jai Vaze, C. Petheram, Francis H.S. Chiew, Biao Wang, Nick Potter, Jin Teng Will CMIP5 GCMs Reduce or Increase Uncertainty in Future Runoff Projections?.................................................. 477 Jin Teng, Francis H.S. Chiew, Jai Vaze FLOODS AND PRECIPITATION EXTREMES II Testing a Remote Sensed Rainfall Product (PERSIANN) Against Ground Based Rainfall Data for Three Sites in NSW............................................................................................................................................................ 485 Nalin Senevirathne, Garry Willgoose Analysis of Rainfall Patterns Over the Yarra River Catchment ................................................................................... 493 N. Muttil, B. Pomroy, B.J.C. Perera Flash Flood Protection in the Saudi Desert --- Why and How? Protecting Jeddah from Extreme Wadi Flooding .............................................................................................................................................................................. 501 Graham Knott, Mansour Shehri SURFACE WATER HYDROLOGY I Water Poverty Analysis of Selected River Basins in Nepal ............................................................................................ 509 Vishnu Prasad Pandey, Sujata Manandhar, Futaba Kazama Estimation of the Statistical Significance of a Major Flood Event --- A Case Study.................................................... 516 Nicole Harcombe, Eric Lam Rapid Inundation Modelling Using LiDAR-DEM in the Mid Murrumbidgee Floodplain.......................................... 528 Yongqiang Zhang, Dushmanta Dutta, Jai Vaze URBAN HYDROLOGY I Modelling a Residential Catchment, an Industrial Catchment and a Catchment Under Construction to Evaluate the Quality and Quantity of Stormwater Discharges into a Coastal Salt Water Lake ............................ 536 Marlene van der Sterren, Kate Hey-Cunningham, K. Brennan Understanding Treatment Characteristics of Constructed Stormwater Wetlands ...................................................... 545 Isri R. Mangangka, Prasanna Egodawatta, Jay Rajapakse, Ashantha Goonetilleke WSUD Application Audit at Gold Coast City ................................................................................................................. 553 Jay Rajapakse, Prasanna Egodawatta, Hamid Mirfenderesk, Ashantha Goonetilleke CLIMATE CHANGE II Changes to Sub-Daily Rainfall Patterns in a Future Climate ........................................................................................ 561 Seth Westra, Jason Evans, Rajeshwar Mehrotra, Ashish Sharma Statistical Downscaling for Hydrological Application: Advantages and Challenges ................................................... 571 Guobin Fu, Stephen P. Charles, Francis H.S. Chiew, Jin Teng, Hongxing Zheng Application of a Space-Time Stochastic Model for Downscaling Future Rainfall Projections ................................... 579 Bhupendra A. Raut, Lorenzo de la Fuente, Alan W. Seed, Christian Jakob, Michael J. Reeder Projected Changes in Rainfall and Runoff for South-Eastern Australia Under 1 °C of Global Warming………… 587 David A. Post, Francis H.S. Chiew, Jin Teng, Biao Wang, Steve Marvanek Statistical Downscaling of General Circulation Model Outputs to Precipitation......................................................... 595 D.A. Sachindra, F. Huang, Andrew F. Barton, B.J.C. Perera FLOODS AND PRECIPITATION EXTREMES III Implications of Changes in Wooramel River Flow Regime to the Stromatolites and Faure Sill in Shark Bay Northwest Western Australia ........................................................................................................................ 603 F.S. Mpelasoka, Paul Rustomji, Mat Vanderklift Managing Available Storage Capacity During Floods ................................................................................................... 611 Andrew Shields Variability of Discharge and Flood Risk on the Rhine River from 1820 to 2011 ......................................................... 619 Jens Bender, Christoph Mudersbach, Jurgen Jensen Review of Flood Hazard Prediction on Urban Floodplains............................................................................................ 628 Maree Riley, Grantley Smith, Conrad Wasko Implications of the Lockyer Valley Flood on the Management of Flood Risk in Australia......................................... 637 Greg Rogencamp, Peter Hill WATER QUALITY MODELLING AND ESTAURINE PROCESSES I Applying eWater Source as the Catchment Model for the Hawkesbury-Nepean Water Quality Model System................................................................................................................................................................................. 645 Rose Mannik, Agathe Boronkay, Phillip Jordan, Tony Church, Donna Hughes, Stephen Blockwell Predicting Tides at Lakes Entrance as part of a Flood Warning System ..................................................................... 656 Anthony R. Ladson, Andrew Herron, Avijeet Ramchurn Overland Tidal Dynamics and Numerical Modelling Implications ............................................................................... 664 William Glamore, Duncan Rayner, Jamie Ruprecht Modelling the Saline Dynamics of NSW East Coast Estuaries ...................................................................................... 673 Brett M. Miller, William L. Peirson Developing Empirical Hydraulic Geometry Relationships for Tidal Channels in NSW Wetlands ............................ 682 Jamie Ruprecht, William Glamore, Duncan Rayner URBAN HYDROLOGY II Hydrodynamically Coupled Stormwater Model of the Auckland Central Business District ...................................... 690 Sindiya Vaakesan, Paul L. Miselis, S. Jones, M. Summerhays, R. Smedley Modeling Non-Residential Urban Water Use: Case Study on Two High Water Use Schools in Melbourne .......................................................................................................................................................................... 700 S. Barua, A.W.M. Ng, S. Muthukumaran, P. Roberts, A. Athuraliya, N.T. Diamond, B.J.C. Perera Evaluation of Urban Stormwater Harvesting Schemes Using Multi-Criteria Assessment.......................................... 708 P.M. Inamdar, A.K. Sharma, B.J.C. Perera Consideration of the Development of a New Urban Rainfall Runoff Model................................................................. 717 Will Shepherd, Adrian J. Saul Insights into Household Water Use Behaviours Throughout South East Queensland During Drought .................... 725 Peter Coombes WATER RESOURCES MANAGEMENT I Proposed Project Methods for the Flinders and Gilbert Agricultural Resource Assessment ..................................... 733 C. Petheram, I. Watson, P. Stone, M. Barber, R. Bartley, D. Brough, D. Burrows, N. Crossman, Dushmanta Dutta, M. Grundy, J. Hornbuckle, I. Jolly, Julien Lerat, D. McJannet, T. Munday, R.K. Schmidt, N. Waltham, T. Webster eWater Source --- Australia's Next Generation IWRM Modelling Platform ............................................................... 742 Robert Carr, Geoff Podger eWater's Quality Assurance Approach for Developing and Applying Water Management Models.......................... 750 Peter Wallbrink, Joel Rahman, Emma Betts, Dugald Black, Matthew Bethune Implementation of Continuous Sharing Resource Assessment System in Source: An Application in the Macintyre Brook River ..................................................................................................................................................... 758 Dushmanta Dutta, W.D. Welsh, Lydia Cetin Trialling eWater Source with a Simplified Pioneer Catchment..................................................................................... 766 W.D. Welsh, Lydia Cetin, Dushmanta Dutta DESIGN RAINFALL AND FLOOD ESTIMATION III Space Transformation with Multidimensional Scaling to Account for Topography-Induced Local Anisotropy in Kriging........................................................................................................................................................ 774 Min Liu, Jing Li, Andras Bardossy A Methodology for Incorporating Orographic Information in Deriving Intensity-Frequency-Duration Relationships ...................................................................................................................................................................... 782 Zac Richards, Ashish Sharma, Mark Babister An Investigation into Design Inputs for Design Flood Estimation in New South Wales.............................................. 792 Melanie Loveridge, Ataur Rahman, Dharma Hagare Application of Bayesian GLSR to Estimate Sub Daily Rainfall Parameters for the IFD Revision Project................................................................................................................................................................................. 800 Fiona Johnson, Khaled Haddad, Ataur Rahman, Janice Green The Revised Intensity-Frequency-Duration (IFD) Design Rainfall Estimates for Australia --- An Overview............................................................................................................................................................................. 808 Janice Green, Karin Xuereb, Fiona Johnson, Garry Moore, Cynthia The VOLUME 2 WATER QUALITY MODELLING AND ESTAURINE PROCESSES II Sediment, Carbon and Vegetation Dynamics in an Estuarine Wetland of the Hunter Estuary, NSW....................... 816 Jose F. Rodriguez, Alice Howe, Patricia Saco Modelling Pathogen Contamination Within a Tidally Dominated Estuary.................................................................. 824 Emma J. Gale, Ben Asquith, Andrew Weekes Using Elevated Digital Images, Vegetation Mapping and Hydrodynamic Modelling to Track Tidal Hydraulics and Saltmarsh Evolution ............................................................................................................................... 832 Lisa Granqvist, William Glamore, Ron Cox Three-Dimensional Hydrodynamic Modelling of the Nagambie Lakes System and Implications for Management....................................................................................................................................................................... 840 Chris O'Neill Configuring Consumptive Water Transfers for Ecological Benefit: An Algal Response Model for Water Resource Operations.............................................................................................................................................. 848 Islam Atazadeh, Keely Mills, Andrew F. Barton, Peter Gell OPERATIONAL HYDROLOGY Evaluation of Numerical Weather Prediction Model Rainfall Forecasts for Streamflow Forecasting....................... 856 Durga Lal Shrestha, David E. Robertson, Q.J. Wang, Thomas Pagano, H.A.P. Hapuarachchi Use of Forecast Rainfall in the Control of Flooding........................................................................................................ 864 Greg McMahon Tackling Non-Hydrological Behaviours for Real Time Flood Forecasting Using The URBS Model ......................... 875 Shangyou Zhang, Justin Robinson, Wei Wang Predicting Flood Heights in a Complex Lake System..................................................................................................... 883 Andrew Herron, Anthony R. Ladson Accounting for Environmental Water Deliveries in Regulated Rivers ......................................................................... 891 Guy Ortlipp WATER RESOURCES MANAGEMENT II Comparing Efficiency of Water Distributions in Heuristic and Optimised Ordering Systems: A Case Study in Goulburn River System...................................................................................................................................... 899 Jie Chen, David Penton, Dushmanta Dutta Modelling Goulburn-Broken-Campaspe-Loddon Catchment with ``Source Rivers'' Software ................................. 907 Yong Li, Uttam Manandhar, Barry James A Pilot Study of Tradeoffs Between Flood Mitigation and Supply Security for South-East Queensland Using eWater Source ......................................................................................................................................................... 915 Robert Carr, Wai-Tong Wong, Abel Immaraj Urban Water Resources: A Nation Water Account Perspective ................................................................................... 923 Claire McClusky, Dene Moliere Collaboration in Water Information Across Australia: The National Water Account ............................................... 931 David Wilson, Carla Mooney DESIGN RAINFALL AND FLOOD ESTIMATION IV Identification of the Best-Fit Probability Distributions in At-Site Flood Frequency Analysis: A Case Study for Australia Using 127 Stations ............................................................................................................................ 939 Mohammad Ashrafuz Zaman, Ataur Rahman, Khaled Haddad, Dharma Hagare Revision of Hydrological Design Loss Rates for the Central and Eastern Kimberley Region of Western Australia.............................................................................................................................................................. 947 Alanna Clayton Comparison of Artificial Neural Networks and Adaptive Neuro-Fuzzy Inference System for Regional Flood Estimation in Australia........................................................................................................................................... 954 Kashif Aziz, Ataur Rahman, Gu Fang, Surendra Shrestha Application of Monte Carlo Simulation to the Estimation of Large to Extreme Floods for Lake Rowallan............................................................................................................................................................................. 962 Kim Robinson, Fiona Ling, Jayson Peterson, Rory Nathan, Ian Tye A New Regionalisation Model for Large Flood Estimation in Australia: Consideration of Inter-site Dependence in Modelling .................................................................................................................................................. 969 Khaled Haddad, Ataur Rahman, George Kuczera, Erwin Weinmann WATER QUALITY MODELLING AND ESTAURINE PROCESSES III SCARMS Case Studies --- Application of Sydney Catchment Authority's Reservoir Management System to Winter Turnover in Lake Burragorang ......................................................................................................... 977 Jason Martin, S. Maheswaran Stormwater Treatment Systems Cost Optimisation Using MUSIC............................................................................... 985 Monzur Alam Imteaz, Iqbal Hossain, F. Mekanik Event-Based Water Quality Monitoring Using Stratified Random Sampling Designs................................................ 992 Jason S. Lessels, Thomas F.A. Bishop The Brigalow Catchment Study: Nitrogen Runoff Generation Rates from Pasture Legumes and Changes Since Land Development ................................................................................................................................. 1000 Amanda Elledge, Craig Thornton Planning for the Future: Modelling Anticipated Changes in Water Quality.............................................................. 1008 Al Preston, Imad A. Hannoun, E. John List, Peggy Roefer, Ron Zegers, Todd Tietjen SURFACE WATER HYDROLOGY II Validity of High Temporal Resolution Conceptual Hydrological Model Parameters Calibrated Using Low Resolution Data ....................................................................................................................................................... 1016 H.A.P. Hapuarachchi, David E. Robertson, Q.J. Wang Is There Potential to Inform Time Varying Conceptual Rainfall Runoff Model Parameters Using Groundwater Data?......................................................................................................................................................... 1024 Matt S. Gibbs, Holger R. Maier, Graeme R. Dandy, Mark A. Thyer The Effect of Stream Network Simplification on River Model Performance ............................................................. 1032 Justin D. Hughes, Dushmanta Dutta, Shaun Sang Ho Kim, Jai Vaze, Geoff Podger Regional Calibration of a Macroscale Hydrologic Model for Catchments Across South-Eastern Australia ........................................................................................................................................................................... 1040 Fangfang Zhao, Francis H.S. Chiew, Lu Zhang, Jai Vaze, Lei Cheng Continuous Rainfall-Runoff Modelling of Railway Embankment Steep Slopes ........................................................ 1048 Asim Krishna Sajjan, Yeboah Gyasi-Agyei, Raj Hari Sharma WATER RESOURCES MANAGEMENT III A Daily River System Model for the Murray-Darling Basin: Development, Testing and Implementation ................................................................................................................................................................ 1057 Dushmanta Dutta, Justin D. Hughes, Jai Vaze, Shaun Sang Ho Kim, Ang Yang, Geoff Podger Strategic Long-Term Planning for Greater Sydney's Water Supply .......................................................................... 1067 S. Maheswaran, G. Begg, I. Tanner Modelling of Environmental Flow Releases from Warragamba Dam ........................................................................ 1075 Golam Kibria, S. Maheswaran Darwin Region Level of Service Objectives Analysis.................................................................................................... 1083 Tim Rhodes, Peter Comino, Amir Deen, Trevor Durling FLOODS AND PRECIPITATION EXTREMES IV Changes to Flooding Potentials in South East Queensland Based on GCM Outputs and Observations.................. 1093 Yi-Ru Chen, Bofu Yu, Ryoji Nagayanagi East Coast Low Storms and the Pasha Bulker Storm --- Lessons Learned Five Years On....................................... 1101 Danielle C. Verdon-Kidd, Anthony S. Kiem, Garry Willgoose, Mark G. Stewart Calculating Average Annual Time of Submergence for Flooding on Roads .............................................................. 1109 W.D. Weeks Statistical Forecasts of High Streamflows for the Next Month .................................................................................... 1117 James C. Bennett, Q.J. Wang, Prafulla Pokhrel, David E. Robertson HYDROINFORMATICS I Detection of Change Point in Annual Maximum Flood Series Over Eastern Australia Using a Bayesian Approach.......................................................................................................................................................... 1125 Mohammad Ashrafuz Zaman, Ataur Rahman, Khaled Haddad GRIDDA: Simple Software to Mould Gridded Data to a Crooked World ................................................................. 1133 Phillip G.D. Ward, James C. Bennett, David E. Robertson A River Modelling Platform for Building a Simplified Daily River System Model for the Murray- Darling Basin ................................................................................................................................................................... 1141 Ang Yang, Dushmanta Dutta, Jai Vaze, Shaun Sang Ho Kim Investigation of Support Vector Machine Technique for Multi-Time Step Forecasting of Time Series Data................................................................................................................................................................................... 1149 Dung Tran, N. Muttil SURFACE WATER HYDROLOGY III Assessing Catchment Runoff Responses Under Dry and Wet Year Scenarios --- A Case Study .............................. 1157 K.S. Tan, Priya Crawford-Wilson, Bruce Rhodes Improving Dynamical Seasonal Rainfall Forecasts for Hydrological Applications ................................................... 1165 Andrew Schepen, Q.J. Wang, David E. Robertson Merging Statistical and Dynamical Forecasting Models to Improve Seasonal Streamflow Forecasts in Eastern Australian Catchments...................................................................................................................................... 1173 Prafulla Pokhrel, Q.J. Wang, David E. Robertson Annual Variability and Decadal Trends of Streamflow in Logan Basin..................................................................... 1181 M. Amghar WATER RESOURCES MANAGEMENT IV Towards a Framework for the Rapid Prediction of Dam Construction and Operational and Maintenance Costs in Australia...................................................................................................................................... 1191 C. Petheram, T.A. McMahon DamSite: An Automated Method for the Regional Scale Identification of Dam Wall Locations ............................. 1199 A.M. Read, J.C. Gallant, C. Petheram Optimisation as a Tool to Assist Environmental Portfolio Management .................................................................... 1206 Avril Horne, Erin Murrihy, Brad Neal, Simon Lang, Nicola Falcon, Mike Stewardson Improving Reservoir Water Balance Computation in Semi-Arid Region Using Climatic Data --- A Case Study of Roseires-Blue Nile- Multi-Purpose Reservoir ....................................................................................... 1214 Mohammed Abdallah, Jurgen Stamm Compiling Preliminary State-Wide Estimates of Evapotranspiration for Victoria Using Outputs from 1-Dimensional Modelling ................................................................................................................................................ 1222 Rachel Brown, Peter Hill, Khalif Jusuf, Bruce Greenop, Rae J. Moran FLOODS AND PRECIPITATION EXTREMES V Estimation of Rare Design Rainfalls for New South Wales and the Australian Capital Territory: An Application of the CRC-FORGE Method...................................................................................................................... 1234 Nanda Nandakumar, Phillip Jordan, Erwin Weinmann, Kristen Sih, Peter Hill, Rory Nathan A Bayesian Hierarchical Downscaling Model for Western Australia Winter Rainfall.............................................. 1242 Yong Song Non-Stationarity in Annual Maxima Rainfall Timeseries --- Implications for IFD Development ............................ 1248 Danielle C. Verdon-Kidd, Anthony S. Kiem Comparison of Scaling Methods for Short-Duration Rainfall Frequency Analysis ................................................... 1256 Karin Xuereb, Janice Green Modelling the Non-Stationary, Asymmetric Impact of ENSO on Seasonal Rainfall Totals and Daily Rainfall Extremes ............................................................................................................................................................ 1264 Xun Sun, Benjamin Renard, Michel Lang, Mark A. Thyer HYDROINFORMATICS II Using Optimisation to Inform the Management of Environmental Water Holdings................................................. 1273 Alice E. Brown, Carmel A. Pollino Multi-Objective Optimisation Method for Water Resources Management: A Multi-Reservoir System Case Study ........................................................................................................................................................................ 1281 Walter R. Godoy, Andrew F. Barton, B.J.C. Perera Artificial Neural Networks (ANN) Modelling of Spring Rainfall Using Dual-Climate Indices for Victoria, Australia ........................................................................................................................................................... 1289 F. Mekanik, Monzur Alam Imteaz Minimization of Pumping Costs in Water Distribution Systems Using Explicit and Implicit Pump Scheduling ........................................................................................................................................................................ 1298 A.M. Bagirov, H. Mala Jetmarova, A. Al Nuaimat, S.T. Ahmed, N. Sultanova, Andrew F. Barton A Comparative Study Between Three Genetic Algorithm Software Applications for Optimizing Water Distribution Systems ............................................................................................................................................ 1306 Mahnd Younis, Graeme R. Dandy SURFACE WATER HYDROLOGY IV Is Smaller Really Better? 2D Grid Cell Size and Perceived Accuracy ........................................................................ 1317 R.S.D. Thomson, B.C. Phillips, S. Yu, B. Kilaparty, T. Fang, S. Pathiraja 2D Hydrology: Using the Shallow Water Wave Equation to Model Hydrologic Response ....................................... 1325 Rudy Van Drie, Petar Milevski, Michael Simon The Use of Hydrodynamic Modelling and Remote Sensing to Assess Hydrological Connectivity of Floodplain Wetlands........................................................................................................................................................ 1334 Fazlul Karim, Steve Marvanek, Jim Wallace, C. Petheram, Catherine Ticehurst, Ben Gouweleeuw Investigation of Different Loss and Gain Accounting Methodologies for River System Modelling.......................... 1342 Shaun Sang Ho Kim, Jai Vaze, Dushmanta Dutta, Justin D. Hughes, Warrick Dawes Developing National Virtual Teaching Tools for Hydrology........................................................................................ 1350 R. Willem Vervoort, Floris F. Van Ogtrop, Barry Croke WATER RESOURCES MANAGEMENT V Two Problems, One Solution: Delivering Coal Seam Gas Water to the Central Condamine Alluvium .................. 1358 Toby McGrath, Ron Populin, Joan Meecham The Basin Plan --- The Role of Engineers in Water Reform ........................................................................................ 1366 Adrian Piani, Kirsty Pearson An Optimized, Real Time Water Delivery and Management System for the Murrumbidgee River........................ 1374 T. van Kalken, Nachi Nachiappan, Dan Berry, John Skinner Municipal Lessons in Water Demand Management: Case Study from South Africa................................................ 1385 Jeremiah Mutamba, Ola Busari Australian Water Resources Assessment-AWRA Report ............................................................................................ 1393 Amgad Elmahdi, Malcolm Watson Predicted Effects of Bauxite Mining on Inflows to Serpentine Reservoir in Western Australia............................... 1401 Muhammad Shafiqul Alam, Renee N.M. Dixon A Pre-Feasibility Study of Isotopes for Investigation of Monsoon Dynamics ............................................................. 1409 M.S. Rao, Gopal Krishan, C.P. Kumar, Shivam Tripathi, Bhishm Kumar AUSTRALIAN RAINFALL AND RUNOFF How Connected Are Urban Catchments? Estimating the Effective Impervious Area .............................................. 1417 R.S.D. Thomson, B.C. Phillips, A.G. Goyen, S. Pathiraja, M. Griffin Gridding of Design Rainfall Parameters for the IFD Revision Project for Australia ................................................ 1425 Cynthia The, Fiona Johnson, Michael Hutchinson, Janice Green Development of a New Regional Flood Frequency Analysis Method for Semi-Arid and Arid Regions of Australia....................................................................................................................................................................... 1433 Ataur Rahman, Mohammad Ashrafuz Zaman, Khaled Haddad, George Kuczera, Erwin Weinmann, W.D. Weeks, Lakshman Rajaratnam, David Kemp Regional Flood Estimation in Australia: An Overview of the Study for the Upgrade of `Australian Rainfall and Runoff' ........................................................................................................................................................ 1441 Ataur Rahman, Khaled Haddad, Mohammad Ashrafuz Zaman, George Kuczera, Erwin Weinmann, W.D. Weeks Outcomes from a Pilot Study on Modelling Losses for Design Flood Estimation ...................................................... 1449 Peter Hill, Zuzanna Graszkiewicz, Kristen Sih, Rory Nathan, Melanie Loveridge, Ataur Rahman Attaching Probability to the PMF --- Is This Hydrology or Geometry??? ................................................................. 1457 Greg McMahon CLIMATE CHANGE III A Hybrid Method for Efficiently Estimating the Annual Flood Distribution Under a Changing Climate ............................................................................................................................................................................. 1467 Jing Li, Mark A. Thyer, Martin Francis Lambert, George Kuczera, Andrew Metcalfe Spatiotemporal Fuzzy Based Climate Classification for Southeastern Australia ...................................................... 1477 Maryam Montazerolghaem, R. Willem Vervoort, Budiman Minasny, Alex McBratney Rainfall, Temperature and Evaporation Trends in the Fitzroy Basin, Queensland, Australia................................. 1484 Md. Sharif Imam Ibne Amir, Mohammad Masud Kamal Khan, Mohammad Golam Rasul, Raj Hari Sharma, Fatema Akram Bridging the Gap Between Climate Science Capability and Water Resource Management..................................... 1492 Emma K. Austin, Anthony S. Kiem, Danielle C. Verdon-Kidd Water Trading as a Climate Change Adaptation Strategy --- Will We be Happy if the Objective is Achieved? ......................................................................................................................................................................... 1500 Anthony S. Kiem Water Balance Modelling with Climate Change Effects, Narromine Irrigation Scheme, Macquarie River, Australia................................................................................................................................................................ 1508 Babak Bozorgy, Mehdi Mirzaee, Vaughan Pearce SURFACE WATER HYDROLOGY V Quantifying the Impact of Different Irrigation Scheduling Options on Evapotranspiration and Deep Percolation for Pasture.................................................................................................................................................... 1516 Faith Githui, Thabo Thayalakumaran Improving the Inputs to Assessing the Impact of Stock and Domestic Farm Dams in Queensland ......................... 1524 Chloe R. Wiesenfeld, Nicola Logan, Ahmed Naseem, Phillip Jordan, Bronwyn Edwards, Phil Delaney, Robert Morden Modelling the Impact of Stock and Domestic Farm Dams in Queensland.................................................................. 1536 Nicola Logan, Chloe R. Wiesenfeld, Phillip Jordan, Bronwyn Edwards, Robert Morden Mine Rehabilitation Hydrology, Infiltration and Runoff Routing Responses for Bowen Basin Coal Mines................................................................................................................................................................................. 1547 Garry Willgoose, Yeboah Gyasi-Agyei, Rob Loch Australian Network of Hydrologic Reference Stations --- Advances in Design, Development and Implementation ................................................................................................................................................................ 1555 Margot Turner, Mohammed Bari, Gnanathikkam Amirthanathan, Zahid Ahmad The Brigalow Catchment Study: Increases in Runoff Associated with Land Development Can Still Be Detected in Flood Events at a Small Catchment Scale.................................................................................................. 1565 Craig Thornton, Amanda Elledge POSTER PAPERS River Flow Forecasting Using an Integrated Approach of Wavelet Analysis and Artificial Neural Networks........................................................................................................................................................................... 1571 Honey Badrzadeh, Ranjan Sarukkalige Quantifying First Flush Loadings of Stormwater Runoff from Residential Catchment ........................................... 1579 M.F. Chow, Z. Yusop Precipitation Stable Isotopes δ2H and δ18O in the Sydney Basin 1586 Catherine E. Hughes, Jagoda Crawford, Stephen Parkes, Suzanne E. Hollins Hydrologic and Geologic Integrated Study to Better Understand the Salinity Problems of the Mount Annan Area, Western Sydney, Australia ....................................................................................................................... 1594 Sanaa Issa, R. Willem Vervoort, Damien Field PIV Study of Turbulent Flow Around a Circular Bridge Pier Using Fractal Scaling ............................................... 1604 Alireza Keshavarzi, James Ball PIV Measurement of Coherent Flow Structure Over Gravels in a River Bed ........................................................... 1610 Alireza Keshavarzi, James Ball Assessing the Vulnerability of the Iranshahr Aquifer to Contamination Using DRASTIC and GIS ....................... 1618 Kh. Shafiei Motlagh, A. Salemian, M. Moaddab Author Index