上海复合极端风暴洪水淹没模拟

Journal article (2019)

Authors

Luyang Wang Shanghai Normal University

Min Zhang Shanghai Estuarine and Coastal Science Research Center, Shanghai Normal University

Jiahong Wen Shanghai Normal University

Zhentao Chong Shanghai Normal University

Qinghua Ye Deltares, Coastal Engineering -

Q. Ke Hydraulic Structures and Flood Risk -

Research Group

Coastal Engineering () (TU Delft)

Shanghai Numerical modeling Model coupling Compound storm coastal flooding

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Published Date

2019

Language

Chinese

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Faculty

Civil Engineering & Geosciences

Department

Hydraulic Engineering

Research Group

Coastal Engineering

Abstract

Estuary deltas and coastal cities are facing with the rising risk of the compound flooding due to the coincidence of storm surge, extreme precipitation, high tide and high river discharge. A new integrated numerical modeling system, which coupled atmosphere, ocean and coast processes, was developed to simulate the extreme compound coastal flooding (including four threats of flooding) in Shanghai. The new developed model was calibrated to provide a valid numerical solution for the integrated compound flooding simulation. The results showed that flooding area (inundation depth > 0.2 m) was reduced by approximately 62% after the enhancement of seawall and levee in 1998. Therefore, it is concluded that seawall and levee construction plays a key role in coastal flooding prevention in Shanghai. The accurate simulation of extreme compound coastal flooding provides rational information for the future planning of property insurance and city development.