DOI: 10.1007/s11069-019-03803-0
论文题名: Flood risk assessment in Quzhou City (China) using a coupled hydrodynamic model and fuzzy comprehensive evaluation (FCE)
作者: Geng Y. ; Zheng X. ; Wang Z. ; Wang Z.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 100, 期: 1 起始页码: 133
结束页码: 149
语种: 英语
中文关键词: Coupled hydrodynamic model
; Flood risk assessment
; Fuzzy comprehensive evaluation
; Urban flood
英文关键词: flooding
; fuzzy mathematics
; hydrodynamics
; hydrological modeling
; risk assessment
; spatiotemporal analysis
; urban area
; China
; Hebei
; Quzhou
英文摘要: To evaluate urban flood risk while considering spatial and temporal characteristics, this paper establishes an assessment method based on a coupled hydrodynamic model and a fuzzy comprehensive evaluation method. An assessment system is developed using hydrologic, social and economic factors. In addition, hydrology factors are obtained by the coupled hydrodynamic model. The hydrodynamic model is solved using the three-cascade method of the Saint–Venant equations for a river system, and the surface runoff is solved using a modified Roe-type approximate Riemann solver. The hydrology results are used as hydrologic factors and directly reflect the inundation of the subsequent assessment. Afterward, an analytic hierarchy process is used to calculate the weights of the assessment indices. Then, the urban flood risk is analyzed using the fuzzy comprehensive evaluation method. Five different rainfall events in Quzhou City are simulated and evaluated. The numerically computed results compare well with the statistical data and indicate an extreme inundation depth of more than 3 m. In addition, the assessment risk of Quzhou City is at level IV (high). This study shows that combining the assessment method with the coupled hydrodynamic model efficiently reflects the urban flood risk by considering flood, social and economic data. © 2019, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168501
Appears in Collections: 气候变化与战略
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作者单位: School of Transportation, Southeast University, Nanjing, 210096, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing, 210024, China; Shanghai JiaoTong University Underwater Engineering Institute, Shanghai, 200030, China
Recommended Citation:
Geng Y.,Zheng X.,Wang Z.,et al. Flood risk assessment in Quzhou City (China) using a coupled hydrodynamic model and fuzzy comprehensive evaluation (FCE)[J]. Natural Hazards,2020-01-01,100(1)