台州沿海地区台风风暴潮淹没风险分析  

Inundation risk assessment of typhoon storm surge along Taizhou coastal areas

作　　者：吴玮[1] 刘秋兴[2] 于福江[2] 傅赐福[2] 董剑希[2] 

机构地区：[1]浙江省海洋监测预报中心,浙江杭州310007 [2]国家海洋环境预报中心,北京100081

出　　处：《海洋预报》2012年第2期25-31,共7页Marine Forecasts

基　　金：海洋局公益性项目"浙江省沿海重点区域海洋灾害风险评估与应急技术响应研究"(200705004)

摘　　要：台州市是我国遭受台风风暴潮灾害最为严重的地区之一,对台州地区进行风暴潮淹没风险分析对于该区域的海洋防灾减灾工作有着十分重要的意义。找出对整个评估区域各控制点均能产生较大增水的台风路径作为淹没风险分析的基础路径,同时为保守起见,保证每次台风过程的最大增水均叠加在当地天文高潮上,根据台风强度不同分为6个等级对应风暴潮的不同强度,评估分析六个不同等级的台风风暴潮叠加到台州当地天文高潮所产生的风暴潮灾害。评估中还充分考虑了实际一维海堤等对评估结果的影响,评估结果更加合理。从分析的结果来看,由于台州市区高程普遍偏低,一旦出现海水漫堤的情况,将会在评估区域内造成大面积的淹没,受灾程度视淹没深度和范围不同而不同。Taizhou city is one of the areas that are most vulnerable to typhoon storm surge in China.Inundation risk analysis is important to Taizhou’s marine disaster prevention and mitigation.A typhoon track is selected as a reference,which could cause the maximum storm surge over the entire region.For the sake of safety,the maxi-mum storm surge should be superimposed on the high astronomical tide.According to the intensity of typhoon,storm surge’s intensity is divided into six categories.Inundation risk should be evaluated through the different flooding areas caused by storm surge for various intensity.It should be more reasonable to take the effect of barri-er into consideration.Inundation risk assessment indicate that Taizhou city will be largely flooded due to the low elevation of Taizhou City.Furthermore,the severity of disaster depends on the inundation depth and extent.

关 键 词：台风风暴潮 天文潮 淹没风险 

分 类 号：P731[天文地球—海洋科学]