Impact of temporal rainfall patterns on flash floods in Hue City, Vietnam
| Autor: | Bin He, Jiqiang Lyu, Daniel Nover, Meimei Zhou, Xiaoli Zhao, Aidi Huo, Weili Duan, Pingping Luo, Dengrui Mu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
lcsh:Disasters and engineering Geography Planning and Development inundation area lcsh:TC530-537 lcsh:TA495 lcsh:River protective works. Regulation. Flood control flood inundation synthetic rainfall Climatology temporal rainfall pattern Flash flood Environmental science Flo‐2D model Safety Risk Reliability and Quality Water Science and Technology Hue |
| Zdroj: | Journal of Flood Risk Management, Vol 14, Iss 1, Pp n/a-n/a (2021) |
| Popis: | Urban flooding is a perennial problem, especially in developing countries with relatively weak infrastructure under ever‐increasing stress due to climate change and human activities. We simulate the temporally variable flood‐water depth and inundation area under four designed rainfall patterns in the typical tropical rainforest city of Hue, Vietnam. The four rainfall types are R1 (peak at fifth hour), R2 (peak at 20th hour), R3 (peak at first hour), and R4 (peak at 13th hour). Results show that temporal rainfall pattern R4 with peak rainfall in the middle of the total period yielded the maximum water depth of 1.88 m. R3, with peak rainfall in the first hour, yields the shallowest maximum water depth and the largest inundation extent. When the water depth for R3 is 0.1–0.2 m, the inundated area caused by R3 is 3–4 times that of the other three patterns. Analysis of urban flood inundation in Hue provides a management tool to facilitate flood risk management in the context of extreme rainfall. |
| Databáze: | OpenAIRE |
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