Page 5 - 《水资源与水工程学报》2022年第3期
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!33 " ! 3 #                       & ' ( ) & * + , -                               Vol.33No.3
               2022 $ 6 %               JournalofWaterResources&WaterEngineering                 Jun.,2022

            DOI:10.11705/j.issn.1672-643X.2022.03.01


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                 8IBJK:P458.1 21.1;P426.62   LMNOP:A    LQRK:1672643X(2022)03000111
                  Simulationanalysisofmaximum hourlyrainfallprocessinZhengzhou
                                         rainstorm centerbasedonWRF

                                                    1,2
                                                                                   1
                                                                      1
                                     ZHANGJinping ,ZENGMuxiang,GUOYuan
               (1.CollegeofHydraulicScienceandEngineering,ZhengzhouUniversity,Zhengzhou450001,China;2.StateKeyLaboratoryof
                              SevereWeather ,ChineseAcademyofMeteorologicalSciences,Beijing100081,China)
                 Abstract:InordertoexploretheperformanceofWRF(weatherresearchandforecasting)modelonthe
                 simulationofmaximumhourlyrainfallprocessattherainstormcenterofZhengzhouCity ,weselectedfive
                 commonmicrophysicalprocessschemestosimulatethe14shorttermrainstormsthatoccurredinZheng
                 zhouCityfrom2011to2018 ,andanalyzedtherainfallcharacteristicsincombinationwiththetemporal
                 andspatialdistribution,rainpattern,rainfallpeakvalueandrainfallconcentration.Theresultsshowthat
                 theWRFmodelcansimulatetherainfallofthecorrespondingevent,butwithadeviationattheposition
                 oftherainarea ,andthetimedeviationsoftherainfallprocessformorethan60% oftheeventsareless
                 than180min.Themodelperformswellatthesimulationoftheaccumulatedrainfall ,withahighcorrela
                 tiontotherainfallprocess ,butlackingtheabilitytosimulatetheprocessrainfallamount.Accordingto
                 rainpatternanalysisproducedbythefuzzyrecognitionmethod ,theWRFmodelperformswellatthesim
                 ulationofsinglepeakrainstorm patterninZhengzhouCity ,butpoorlyattheuniform rainfallpattern.
                 WhentheWRFmodelisusedtosimulatethesinglepeakrainfallpattern,therainpeakdeviationcanbe
                 controlledwithin±30%.Thesimulatedrainfallconcentrationof13rainfalleventsareconsistentwiththe
                 actualmeasurements.ResearchshowsthattheoverallsimulationresultsoftheWRFmodelareideal ,
                 whichcanprovidenumericalmethodsupportforthestudyofshorttermrainstormsinZhengzhouCity.
                 Keywords:maximumhourlyrainfallprocess;WRF(weatherresearchandforecasting)model;rainfall
                 simulation ;rainstormcenter;fuzzyrecognitionmethod;characteristicsofrainstorm pattern;Zhengzhou
                 City

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