Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
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Daily Overview |
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Poster session: Poster session with drinks and snacks Location: HSB3 | |
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Poster
Estimating Climate Change-Induced Trends in CSO Volume and Flooding using an Ensemble of Precipitation Predictions Institute of Urban Water Management, Graz University of Technology, Graz, Austria Climate change intensifies challenges for urban drainage systems through altered precipitation patterns and increased flooding risks. This study evaluates the resilience of Graz, Austria’s combined sewer system under future climate scenarios. A novel statistical emulator integrates global and regional climate models to generate ensemble projections, validated against 13 rain gauges. The methodology assesses shifts in precipitation intensity, seasonality, and spatial variability, alongside urban drainage performance via hydrodynamic simulations. Results reveal climate models underestimate short-duration rainfall but project stable annual precipitation with increased dry periods and intensified convective storms. Future scenarios (2041–2050; 2090–2099) indicate rising combined sewer overflow (CSO) frequencies and expanded flood extents, particularly in near-future projections. Spatial flood risk redistribution underscores the need for adaptive strategies addressing both climatic and anthropogenic factors, including urbanization and sustainable drainage solutions. While wastewater treatment plant inflows decrease due to shorter rainfall events. | |