Page 39 - 《水资源与水工程学报》2022年第2期
P. 39

!33 " ! 2 #                       & ' ( ) & * + , -                               Vol.33No.2
               2022 $ 4 %               JournalofWaterResources&WaterEngineering                 Apr.,2022
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            DOI:10.11705/j.issn.1672-643X.2022.02.05


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                 HIAJK:TV213.9;TU992   LMNOP:A    LQRK:1672643X(2022)02003510
                      Spatiotemporalheterogeneityofthedesignrainfallanditstotal

                                      amountcontrolrateinNanningCity

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                         MAMi,YANGYunchuan        1,2,3,4 ,LIQianyun,ZHOUJinyu,WEIJiaoyin,
                                                                          1
                                              LIAOLiping  1,2,3,4 ,WEIJunpei
              (1.SchoolofCivilEngineeringandArchitecture,GuangxiUniversity,Nanning530004,China;2.EngineeringResearchCenterof
                WaterSecurityandIntelligentRegulationinKarstArea ,Nanning530004,China;3.KeyLaboratoryofEngineeringDisaster
               PreventionandStructuralSafetyofMinistryofEducation,GuangxiUniversity,Nanning530004,China;4.GuangxiProvincial
                             KeyLaboratoryofDisasterPreventionandEngineeringSafety,Nanning530004,China)
                 Abstract:Thesingleandunifieddesignrainfallanditscontrolrateindicatorareconventionallyadopted
                 intheconstructionandeffectivenessevaluationofspongecityinChina ,whichmakesitdifficulttoeffec
                 tivelyguideandevaluatetheconstructionofdifferentLIDfacilitiesontheunderlyingsurface.Inviewof
                 thisproblem ,weanalyzedthespatiotemporalheterogeneitycharacteristicsofdailyrainfall,designrain
                 fallanditscontrolrate ,anddiscussedthequantitativeinfluenceofthecurrentunderlyingsurfacestorage
                 andpipenetworkdrainageonthecontrolrateindicatorinNanningurbanareausingArcGISspatialinter
                 polation,designrainfallandcontrolraterelationshipmethodandvolumemethod,basedonQuickBird
                 landuse,thefinedivisionofsubbasinsin2020andtheNanning0.1°CMFDgriddailyrainfallseries
                 from1981to2010.Theresultsshowthatthedailyrainfallfrequency,annualdistribution,designrainfall
                 anditscontrolrateofNanningurbanareaallshowedsignificantspatialandtemporalheterogeneity.The

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