基于GIS上海浦东暴雨内涝灾害脆弱性研究.pdf

20 2 Vo.l 20 No. 2 2011 4 JOURNAL OF NATURAL DISASTERS Apr. 2011 : 1004- 4574( 2011) 02- 0029- 07 GIS 1 1 2 尹占娥 , 暴丽杰 , 殷 杰 ( 11 , 2002 4; 21 , 200062) : , , G IS, 20501002005001000 6 , , G IS, , , GIS , : ; ; ; : TP 91; P426. 616 : A GIS-based study on vulnerability to rainstorm inundation in Pudong of Shanghai 1 1 2 Y IN Zhan-e BAO L-i jie Y IN Jie ( 11Shangha iNormalU niversity, Shanghai 2002 4, China; 21E astChina Norm alUniversity, Shanghai 200062, China) Abstract:W ith global clmi ate change and rapid urbanization process, rainstorm flood disaster has becom emajor is- sues and severe challenges faced by human society and econom ic developm ent. Vulnerab ility assessment is mi por- tant basic content of risk assessment, wh ich is a hot points research of international d isaster prevention andm itiga- tion. The authorsutilized a revised SCSmodel to calcu late heavy rain runoff by DEM and the depth of flood inunda- tion for different return periods. Based on six return periods of 20, 50, 100, 200, 500 and 1000 years, w e selectPu- dong New A rea as case study and app ly G IS and remote sensing technology to carry out hazards analysis and vu lner- ab ility analysis in th is paper. Base on the grid, w e re-classify and draw up the inundation depth maps for d ifferent return periods. The data on disaster loss rate ofm instorm inundation in study areaw as surveied and the vulnerab ility classification for study areaw as carrie