REFINED RISK ASSESSMENT OF STORM SURGE DISASTER IN COASTAL PLAIN: A CASE STUDY OF PINGYANG COUNTY

作     者：CHEN Fu-yuan YU Pu-bing WU Xiu-guang ZHU Yun-ze 陈甫源;于普兵;吴修广;朱韫泽

作者机构：Key Laboratory of Estuary and Coast of Zhejiang Province Zhejiang Institute of Hydraulics and Estuary 

出 版 物：《Journal of Tropical Meteorology》 (热带气象学报（英文版）)

年 卷 期：2019年第25卷第3期

页      面：304-311页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：Zhejiang Science and Technology Plan Project(2015C03003 2017F30008 2018F10023) 

主　　题：coastal plain storm surge submergence risk assessment 

摘      要：As the risk of storm surge on coastal plains increases, the research on disaster risk assessment is fundamental for disaster management. Disaster risk assessment tends to develop towards the direction of refinement and it gradually plays a more important role. According to the characteristics of storm surge disaster in coastal plain, the paper uses refined floodplain numerical model which combines typhoon, flood, astronomical tide and waves to simulate inundation process. The model also considers influencing factors of dike-breaking, micro-topography and buildings. Precise calculation is executed for the range and the submerged depth caused by floodplain flow in coastal plain. Based on 3 S technology, disaster-bearing bodies are subdivided into the smallest unit of the ground object, and the vulnerability of these units is evaluated. Refined risk assessment of storm surge disaster for the coastal plain is obtained, and the detailed distribution of risk areas at different risk levels is achieved. These results can be widely applied in many fields,such as disaster prevention and mitigation, urban planning, industrial arrangement, disaster insurance and so on.