INTERANNUAL VARIATIONS OF ATMOSPHERIC HEAT SOURCES AND MOISTURE SINKS OVER THE EQUATORIAL PACIFIC AND THEIR RELATIONS TO THE SST ANOMALIES

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摘要 TheinterannualvariationsofatmosphericheatsourcesandmoisturesinksovertheEquatorialPacificandtheirrelationswiththeSSTanomaliesarestudiedusingECMWFreanalysisdatafrom1979to1993.Itisfoundbysingularvaluedecomposition(SVD)analysisthattheregioninthetropicalPacificwithhighpositivecorrelationbetweentheverticallyintegratedheatsourceanomalyandtheSSTanomaly,andbetweentheverticallyintegratedmoisturesinkanomalyandtheSSTanomaly,ismainlylocatedinalongandnarrowbelttotheeastof170(Ebetween5(Sand5(N.TheanalysisoftheverticalstructureofatmosphericheatsourcesandmoisturesinksshowsthattheinterannualvariationsofQ1,Q2andSSTintheequatorialcentralandeasternPacificarestronglyandpositivelycorrelatedinthewholetroposphereexceptthebottom(962.5hPa)andthetop(85hPa)layers.However,inthewesternPacific,theinterannualvariationsofQ1below850hPaisnegativelyrelatedtotheSST.Thecorrelationcoefficientatthelevel962.5hPareacheseven-0.59.InotherlayersthepositivecorrelationbetweentheinterannualvariationsofQ1,Q2andtheSSTareweakinthewesternPacific.
机构地区 不详
出版日期 2004年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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