< PreviousWater Technology recently completed an investigation into the impacts of climate change on stormwater flooding in the Perth metropolitan area. The study area was approximately 20 km 2 consisting of a mixture of residential, parkland and CBD catchments. The main objective of this study was to identify areas prone to flooding due to stormwater under present- day conditions and then to assess the increased risks due to projected climate change conditions in 2050 and 2070. The climate change conditions were based on the very high scenario consistent with the current emissions trend, with increased rainfall intensity due to temperature rise applied in the analysis. The assessment was based on the latest recommendations in Australian Rainfall and Runoff (ARR2016), utilising a variety of temporal patterns and storm durations to assess frequent, rare and extreme storm events. Flood modelling was completed using TUFLOW, which covered upstream catchments as well, for a total model area of 35 km 2 . The surface water was modelled on a two-dimensional grid at a 2m resolution, based on LiDAR data and other more recent topographic data. The model also included the trunk drainage system of the extensive pipe network in the Perth metropolitan area. The outcomes from the study included extensive mapping of flood depths, velocities and flood hazard risk for a range of storm event frequencies and climate change scenarios. Flood hazard was assessed using the categories in ARR2016, which are based on risk to people, vehicles and buildings. Climate Change Resilience For more information, contact +61 8 6555 0105 Scott Wills, Deidre Kelly ( scott.wills@watertech.com.au ) ( deirdre.kelly@watertech.com.au ) PERTH The project identified areas most at risk of flooding due to stormwater, and assessed potential impacts on these areas due to climate change. These areas were prioritised based on flood hazard risk, with potential mitigation solutions considered. The report and maps will help prepare the Perth community to respond to the risks of stormwater flooding, making for a more resilient city. 10 : WATER LINES : ISSUE 1, 2019NEWS Techer Travels Stone grinding site on the Upper Mitta Mitta River in Victoria Kakadu National Park, Northern Territory Modelling for Non-Modellers At the recent Floodplain Management Australia National Conference in Canberra, Steve Clark, Ben Hughes, Danny Rose (FMA and Tweed Shire Council) and Lachlan Inglis presented a workshop on “Modelling for Non-Modellers” to over 50 people from across Australia in Local Government and Emergency Services. The workshop provided the basics necessary to understand the often complex world of flood modelling to better understand flood studies and reports, better manage consultants and prepare briefs, and understand the various technologies available. Find out more online: watertech.com.au/making- australia-flood-safe WATER LINES : ISSUE 1, 2019 : 11MELBOURNE (Head Office) 15 Business Park Drive Notting Hill VIC 3168 +61 3 8526 0800 SYDNEY Level 1, 20 Wentworth Street Parramatta NSW 2124 +61 2 9354 0317 BRISBANE Level 3, 43 Peel Street South Brisbane QLD 4101 +61 7 3105 1460 ADELAIDE 1/198 Greenhill Road Eastwood SA 5063 +61 8 8378 8000 PERTH Ground Floor, 430 Roberts Road Subiaco WA 6904 +61 8 6555 0105 WANGARATTA 40 Rowan Street Wangaratta VIC 3677 +61 3 5721 2650 GEELONG 51 Little Fyans Street Geelong VIC 3220 +61 4 5801 5664 GIPPSLAND 154 Macleod Street Bairnsdale VIC 3875 T+61 3 5152 5833 WIMMERA 597 Joel South Road Stawell VIC 3380 +61 4 3851 0240 GOLD COAST Level 4, 194 Varsity Parade Varsity Lakes QLD 4227 +61 7 5676 7602 SUNSHINE COAST +61 7 3105 1460 Staff Profile Celine Marchenay Senior Project Engineer Celine is a resourceful environmental engineer with 13 years’ experience in the water industry and a passion for integrated water management. She completed a Master’s degree in Hydraulic and Environmental Engineering in France before settling in Australia, where she started her engineering career. During the first five years, Celine focused on delivering a series of potable water and sewer network hydraulic models for water authorities undertaking master planning investigations in Queensland, New South Wales and Victoria. With a deep understanding of the operations and challenges on the potable water and sewer networks associated with population growth and aging infrastructure, Celine joined the Department of Sustainability and Environment (now DELWP) as a Water Resource engineer. During her time spent in a state government organisation, she familiarised herself with the water supply and river catchments across the State of Victoria, water allocations including environmental water, irrigation demands and other such diversions. Over the last eight years, Celine has worked at Water Technology as part of the Integrated Stormwater Management group delivering drainage and stormwater quality related projects including flood studies, stormwater management strategies, design of WSUD assets and stormwater harvesting schemes. More recently, Celine has applied her hydraulic modelling skills to the development of innovative IWM pilot models within the Monash employment precinct looking at simulating storm, potable and waste waters all in the one model using InfoWorks ICM. Celine’s professional experience within the various areas in the water industry gives her a level of appreciation of the constraints and challenges different water beneficiaries and managers are facing in planning and managing for the future. Contact: +61 3 8526 0800, celine.marchenay@watertech.com.au EMAIL: info@watertech.com.au HydroNET: hydronet@watertech.com.au Office Locations 12 : WATER LINES : ISSUE 1, 2019Next >