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- Title
A New Flash Flood Warning Scheme Based on Hydrodynamic Modelling.
- Authors
Huang, Wei; Cao, Zhixian; Huang, Minghai; Duan, Wengang; Ni, Yufang; Yang, Wenjun
- Abstract
Flash flooding is one of the most severe natural hazards and commonly occurs in mountainous and hilly areas. Due to the rapid onset of flash floods, early warnings are critical for disaster mitigation and adaptation. In this paper, a flash flood warning scheme is proposed based on hydrodynamic modelling and critical rainfall. Hydrodynamic modelling considers different rainfall and initial soil moisture conditions. The critical rainfall is calculated from the critical hazard, which is based on the flood flow depth and velocity. After the critical rainfall is calculated for each cell in the catchment, a critical rainfall database is built for flash flood warning. Finally, a case study is presented to show the operating procedure of the new flash flood warning scheme.
- Subjects
HAZARD mitigation; FLOODS; FLOW velocity; GROUNDWATER flow; SOIL moisture
- Publication
Water (20734441), 2019, Vol 11, Issue 6, p1221
- ISSN
2073-4441
- Publication type
Article
- DOI
10.3390/w11061221