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1、ClimateChangeResearchLetters气候变化研究快报,2014,3,25-30http://dx.doi.org/10.12677/ccrl.2014.31005PublishedOnlineJanuary2014(http://www.hanspub.org/journal/ccrl.html)ClimaticCharacteristicsofRainstorminFloodSeasoninBeijing112HonglianZheng,HongYang,JunYan161741TroopsofPLA,Beijing2BeijingAviationMet
2、eorologicalInstitute,BeijingEmail:azheng919@sina.comthththReceived:Jun.16,2013;revised:Jul.14,2013;accepted:Jul.25,2013Copyright©2014HonglianZhengetal.ThisisanopenaccessarticledistributedundertheCreativeCommonsAttributionLicense,whichpermitsunrestricteduse,distribution,andreproductioninanym
3、edium,providedtheoriginalworkisproperlycited.InaccordanceoftheCreativeCommonsAttributionLicenseallCopyrights©2014arereservedforHansandtheowneroftheintellectualpropertyHonglianZhengetal.AllCopyright©2014areguardedbylawandbyHansasaguardian.Abstract:Usingthedataofprecipitation,circulationparam
4、etersandhistoricsynopticchartatBeijingstation,thecli-maticcharacteristicsandtheclassificationofweathersituationinmainfloodseasonatBeijingstationinthelast62yearswereanalysed.Theconclusionwasexpressedasfollow.1)Infloodseason,thevariationtrendofaccumulatedrainstormrainfallisassameasaccumulated
5、rainfall,showingadecreasingtrend,andtherainstormcontributionrateshowsawavechange.2)Informerfloodseason,theproportionofrainstorminJulyandAugustshowssomeperiodicchanges,andthestormperiodmaybecominginthenext10years.3)Infloodseason,thewaveletpowerspectrumofstormfrequencyisa2-3-yearperiodandaqus
6、i-5-yearperiod.Accordingtoit,thestormfrequencywillbeonthelowsidein2013.4)Intheyearsofmorestorms,theWesternPacificSubtropicHighAreaislarger;thestrengthisstronger;theridgeismorenorthandwest;andsunspotisinaninactiveperiod.Instead,intheyearsoffewerstorms,theWesternPacificSubtropicHighAreaissmal
7、ler;thestrengthisweaker;theridgeismorenorthandwest;thetemperatureislower;andsunspotisinanactiveperiod.Keywords:SynopticMeteorology;RainstorminFloodSeason;ClimaticCharacteristics;WaveletAnalysis;FrontalRainstorm;Beijing北京汛期暴雨气候特征分析112郑红莲，杨弘，严军1中国人民解放军6174
