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

作者：陳甫源,于普兵,吳修廣,朱韞澤

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.

發文機構：Key Laboratory of Estuary and Coast of Zhejiang Province

關鍵詞：COASTALplainSTORMSURGESUBMERGENCEriskassessment

分類號： P731.23[天文地球—海洋科學]