基于GIS技术的台风风暴潮灾害风险评估--以台州市为例

Typhoon storm surge risk assessment based on GIS——A case study of Taizhou

分析了台州市台风风暴潮灾害特征,根据台州市沿海区域的地理、水文、社会经济等特点,在台风风暴潮数值模型模拟基础上,实现了基于格网和GIS技术的台风风暴潮灾害风险评价。通过构建台风风暴潮灾害风险评价模型,对台州市区沿海地区的台风风暴潮灾害危险度、脆弱性和防灾减灾能力进行了分析,在GIS平台上进行淹没分析、叠置分析、以及格网拟合计算,最后绘制出了台州市台风风暴潮灾害高分辨率风险区划图,以期为我国风暴潮防灾减灾工作提供科学参考。

In the paper, the analysis of the characteristic and affect of the typhoon storm surge in the Talzhou was done. According to geography, meteorology and hydrology, economic, cultural and other characteristics in the coastal areas Taizhou, and in the support of the numerical model of typhoon storm surge, the risk assessment of typhoon storm surge of Taizhou based on Grid and GIS was real- ized. After modeling the typhoon storm surge risk assessment, the research on the typhoon storm surge disaster risk, vulnerability and capacity of disaster prevention and mitigation in the coastal area of Taizhou was made. In support of GIS technology and using the flood analysis, overlay analysis and grid computing, got the typhoon storm surge disaster risk zoning map of Taizhou with the high resolution on the remote sensing image. To wish this result could provide the help to reduce the loss of storm surge in China.