NUMERICAL SIMULATION OF LAG INFLUENCE OF ENSO ON EAST-ASIAN MONSOON

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    摘要 Byprescribingseasurfacetemperatureanomalies(SSTAs)overeasternequatorialPacificinJanuary-March,thelaginfluenceofENSO(ElNinoandLaNina)onmonsoonoverEastAsiahasbeenstudied.Theresultssuggestthat,duetotheexcitationofatmosphericlow-frequencyoscillationbytheSSTA,ENSOhassignificantlaginfluenceonthemonsoonoverEastAsia.DuringthesummerafterElNino,thesubtropicalhighoverwesternPacificisintensifiedandshowsthenorthwardandwestwarddisplacement,meanwhile,therainfalloverEastChinaisbelownormal,especiallyinNorthChina;duringthewinterafterElNino,boththeAsiantroughandthewintermonsoonoverEastAsiaarestrengthened.DuringthesummerafterLaNina,theanomaloussubtropicalhighprevailsoverthelowerreachesofYangtze(Changjiang)River,therainfallbetweenYangtzeandHuaiheRiversisbelownormal;duringthewinterafterLaNina,boththeAsiantroughandthewintermonsoonoverEastAsiaareweaker.ComparedwithLaNina,theeffectofElNinoisstronger,butitisnotalwaysoppositetotheoneofLaNina.
    机构地区 不详
    出处 《气象学报:英文版》 2001年1期
    出版日期 2001年01月11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)
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