摘要
首先系统总结了基于GIS和遥感的洪水灾害损失评估框架,并重点阐述了洪水淹没范围的提取和水深的计算;在此基础上,针对洪水灾害损失中的3种主要承灾体(农作物、线状设施以及人员伤亡),提出了基于空间网格的洪水损失计算模型,模型以空间网格为计算单元,以淹没损失曲线为基础;最后,将此模型应用到沱江流域的洪灾损失评估中,得到了较好的结果.
Rapid estimation of loss caused by floods is very important for flood disaster mitigation measures. Geographical information system （GIS） and remote sensing （RS） are important tools for flood damage estimation. A basic framework of flood loss estimation based on GIS and RS. Then a mathematical model for flood loss estimation based on spatial grid is built. The model focuses on the scope of rural agriculture products, linear infrastructures and population causality. And it is formulated based on stage-damage relationships between different flood inundation parameters and land use features. Finally, a case study illustrates the real world application of the model to the Tuojiang River basin in China＇s Sichuan Province.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2007年第6期42-46,共5页
Engineering Journal of Wuhan University
关键词
GIS
遥感
洪水损失计算模型
网格
geographic information system
remote sensing
flood loss estimation model
grid
