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[63] LIW,JIANGR,WUH,etal.Asystem dynamicsmodelofurbanrainstorm andfloodresiliencetoachievethe
sustainabledevelopmentgoals [J].SustainableCitiesandSociety,2023,96:104631.
Reanalysisofthecharacteristicsofextremerainstorm andflooddisasterin
urbanareasandcopingcountermeasures
3
1,2
1,2
1,2
YUANXimin ,LANZhuoqing ,WANGLina,TIANFuchang
(1.NationalKeyLaboratoryofIntelligentConstructionandOperationofHydraulicEngineering,
TianjinUniversity,Tianjin 300350,China;
2.SchoolofCivilEngineeringandArchitecture,TianjinUniversity,Tianjin 300350,China;
3.NorthChinaInstituteofMunicipalEngineeringDesignandResearch,Tianjin 300074,China)
Abstract:Withtheeffectsofglobalwarmingandrapidurbanization,theriskofextremerainstormandflooddisas
terinurbanareasisincreasing.Throughliteratureresearch ,scientificanalysisandsocialpractice,firstly,the
maincharacteristicsofurbanheavyrainstormandflooddisastersundertheinfluenceofextremeweathereventsare
summarized:largerainfallintensityandaccumulatedrainfall,strongersuddenness,extremelydifficultforecasting,
obviousspatiotemporaldynamics,coupledandinteractiveflooddisasters,widedistributionrange,frequentmass
occurrence,inducedsecondarydisasters,obviouscascadeeffect,goodatdrillingholes, findingfloodcontrol
loopholes ,andmoredestructiveandinfluentialdisasters.Then,from theaspectsofmulti - scalenaturalenviron
ment ,floodcontrolanddrainagecapacitybuilding,floodmitigationtechnologyandequipment,floodemergency
organizationandmanagement,andfloodpreventionpoliciesandregulations,themaincausesofurbanextreme
rainstormandflooddisastersarerevealed ,andscientificcopingstrategiesforurbanheavyrainstormandflooddis
astersinextremeweathereventsareproposed ,namely:deepeningthetheoryofurbanrainstormandflooddisasters
cascadeeffect ,developingurbanextremerainstormandfloodpredictionandrefinedcalculationmodels,improving
urbanrainstormandfloodemergencydefensetechnologyandequipment ,andpromotingtheoverallcoordinateddis
asterpreventionofurbanfloodcontrolanddrainagesystem.Theresearchresultswillhelptocopewiththenew
challengesfacedbyurbanflooddisastersundertheinfluenceofclimatechangeandextremeweather ,furtherim
provethetheoryandtechnologyofurbanflooddisasterpreventionandriskmanagementsystem ,andhaveimportant
guidingsignificanceforthescientificpreventionandcontrolofurbanextremerainstormflooddisasters.
Keywords:urbanflooddisasters;extremeweather;heavyrain;featurereanalysis;responsestrategies
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