Flood Simulation and Population Impact Analysis of Short-Duration Intense Rainfall in Urban Area
- 1Slopeland and Hydrology Division, National Science and Technology Center for Disaster Reduction(NCDR), New Taipei City, Taiwan
- 2Department of Harbor and River Engineering,National Taiwan Ocean University, Keelung City, Taiwan
- 3Department of Civil Engineering ,National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
A report from World Bank in 2022 reveals that about 1.81 billion people (23% of the world population) are directly exposed to flood with depths greater than 0.15 meters. In this study, we evaluate the impact of extreme rainfall events on population in urban areas in Taiwan using SOBEK models. The validation results of the SOBEK models are promising with photos collected from social media for historical storm events. To further assess the impact of extreme rainfall events, we used design rainfall with hourly rainfall of 80mm/hr, 90mm/hr, and 100mm/hr derived from Simple Scaling Gaussian Markov (SSGM) method for single rainfall gauge within major urban area. These results are provided for disaster prevention authority to reinforce the flooding management in urban area.
How to cite: Wei, H.-P., Su, Y.-F., Chang, C.-H., and Yeh, K.-C.: Flood Simulation and Population Impact Analysis of Short-Duration Intense Rainfall in Urban Area, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-5027, https://doi.org/10.5194/egusphere-egu23-5027, 2023.
