globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2017MS000943
Scopus记录号: 2-s2.0-85029350696
论文题名:
Compound simulation of fluvial floods and storm surges in a global coupled river-coast flood model: Model development and its application to 2007 Cyclone Sidr in Bangladesh
作者: Ikeuchi H; , Hirabayashi Y; , Yamazaki D; , Muis S; , Ward P; J; , Winsemius H; C; , Verlaan M; , Kanae S
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期:4
起始页码: 1847
结束页码: 1862
语种: 英语
英文关键词: Risk assessment ; Rivers ; Sea level ; Storms ; Surface discharges ; Surface waters ; Water levels ; Water resources ; Extreme discharges ; Global modeling ; ITS applications ; Large-scale studies ; mega-delta ; Model development ; State of the art ; Storm surges ; Floods ; estuarine environment ; flood ; flooding ; hydrological modeling ; ocean tide ; river discharge ; sea level change ; sea surface ; simulation ; storm surge ; water level ; Bangladesh ; Ganges Delta ; Meghna River ; Ziziphus spina-christi
英文摘要: Water-related disasters, such as fluvial floods and cyclonic storm surges, are a major concern in the world's mega-delta regions. Furthermore, the simultaneous occurrence of extreme discharges from rivers and storm surges could exacerbate flood risk, compared to when they occur separately. Hence, it is of great importance to assess the compound risks of fluvial and coastal floods at a large scale, including mega-deltas. However, most studies on compound fluvial and coastal flooding have been limited to relatively small scales, and global-scale or large-scale studies have not yet addressed both of them. The objectives of this study are twofold: to develop a global coupled river-coast flood model; and to conduct a simulation of compound fluvial flooding and storm surges in Asian mega-delta regions. A state-of-the-art global river routing model was modified to represent the influence of dynamic sea surface levels on river discharges and water levels. We conducted the experiments by coupling a river model with a global tide and surge reanalysis data set. Results show that water levels in deltas and estuaries are greatly affected by the interaction between river discharge, ocean tides and storm surges. The effects of storm surges on fluvial flooding are further examined from a regional perspective, focusing on the case of Cyclone Sidr in the Ganges-Brahmaputra-Meghna Delta in 2007. Modeled results demonstrate that a >3 m storm surge propagated more than 200 km inland along rivers. We show that the performance of global river routing models can be improved by including sea level dynamics. © 2017. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75740
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Department of Civil Engineering, The University of Tokyo, Tokyo, Japan; Institute of Industrial Science, The University of Tokyo, Tokyo, Japan; Institute for Environmental Studies (IVM), Vrije Universiteit Amsterdam, Amsterdam, Netherlands; Department of Integrated Climate Change Projection Research, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Deltares, Delft, Netherlands; Department of Applied Mathematics, Delft University of Technology, Delft, Netherlands; Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Tokyo, Japan

Recommended Citation:
Ikeuchi H,, Hirabayashi Y,, Yamazaki D,et al. Compound simulation of fluvial floods and storm surges in a global coupled river-coast flood model: Model development and its application to 2007 Cyclone Sidr in Bangladesh[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(4)
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