人民长江2001，Vol.32Issue(z1)：50-52,3.
基于3S技术的长江中下游洪涝灾情评估研究
Flood and Waterlogging Disaster Damage Evaluation
in Middle-Lower Yangtze Rive r by 3S technology
ZHAN 1Xiao-guo2
作者信息
- 1. Engineer, Yangtze River Scientific Research Institute,
- 2. Senior Engineer, Yangtze River Scientific Research Institute,
- 折叠
摘要
Abstract
The evaluation method, model and process for the flood and waterlogging disaster condition by GIS,RS and GPS technology and the method for setting up d isaster condition database, dyke database and historical disaster damage databas e are presented. An index of flood damage degree(FDD) used to evaluate the relat ive degree of disaster loss and divide flood and waterlogging area is suggested . The value of flood damage degree can be calculated as follows :taking the vari ous disaster losses of sample area in a base year as standard value and computin g the ratios of various disaster loss values in different areas and years to th e standard flo od disaster loss values, then summing up the weighted ratios. The computed resul t s are the value of flood damage degree in the every year. The macroscopic flood disaster distribution can be evaluated by the values of flood loss degree.分类
建筑与水利引用本文复制引用
ZHAN,Xiao-guo..基于3S技术的长江中下游洪涝灾情评估研究[J].人民长江,2001,32(z1):50-52,3.
