Journal article
Projecting changes in flood event runoff coefficients under climate change
M Ho, R Nathan, C Wasko, E Vogel, A Sharma
Journal of Hydrology | Published : 2022
Abstract
Climate change is projected to impact on the magnitude, spatial location, and timing of large precipitation events, with evidence for this already present in the historical record. However, determining the impacts of these precipitation changes on floods is non-trivial as floods are a result of many compounding factors. For example, changes in the timing and spatial distribution of rainfalls influence soil moisture conditions prior to the flood-causing precipitation event, which in turn change the peak and volume of the resultant flood. Despite this, the impact of climate-changed precipitation on runoff and flood volumes has yet to be quantified historically or examined under different scena..
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Grants
Awarded by Department of Natural Resources
Funding Acknowledgements
The HRS streamflow data set is publicly available from www.bom. gov.au/hrs. Gridded rainfall from AGDC is freely available from the Australian Bureau of Meteorology (2020). Gridded AWRA-L runoff is freely available upon request from http:// www.bom.gov.au/water/landscape/The authors thank Declan OShea for provision of Koppen Climate boundaries, and Ulrike Bende-Michl and Wendy Sharples from the Australian Bureau of Meteorology for facilitating access to the projections of runoff. This project was supported the Australian Research Council (ARC) Discovery Projects DP200101326, Discovery Early Career Researcher Award DE210100479. Michelle Ho is funded by a collaboration jointly funded by the Department of Natural Resources, Mine and Energy, HydroElectric Corporation, Melbourne Water Corporation, Murray-Darling Basin Authority, Seqwater, Snowy Hydro, SunWater, Water Corporation (Western Australia) and WaterNSW.