摘要
Usinggeographicinformationsystemtostudyfloodedareaanddamageevaluationhasbeenahotspotinenvironmentaldisasterresearchforyears.Inthispaper,amodelforfloodedareacalculationanddamageevaluationispresented.Floodingisdividedintotwotypes:‘sourceflood'and‘non-sourceflood'.Thesource-floodareacalculationisbasedonseedspreadalgorithm.Theflooddamageevaluationiscalculatedbyoverlayingthefloodedarearangewiththematicmapsandrelatingtheresulttoothersocialandeconomicdata.Toraisetheoperationalefficiencyofthemodel,askippingapproachisusedtospeedseedspreadalgorithmandallthematicmapsareconvertedtorasterformatbeforeoverlayanalysis.Theaccuracyoffloodedareacalculationanddamageevaluationismainlydependentupontheresolutionandprecisionofthedigitalelevationmodel(DEM)data,upontheaccuracyofregisteringallrasterlayers,anduponthequalityofeconomicinformation.ThismodelhasbeensuccessfullyusedintheZhejiangProvinceComprehensiveWaterManagementInformationSystemdevelopedbytheauthors.TheapplicationsshowthatthismodelisespeciallyusefulformostcountiesofChinaandotherdevelopingcountries.
出版日期
2001年02月12日（中国Betway体育网页登陆平台首次上网日期，不代表论文的发表时间）
