摘要
Weinvestigatetheroleofcloudsandradiationinthegeneralcirculationoftheatmosphereusingamodeldesignedfor30-daypredictions.Comprehensiveverificationsof30-daypredictionsforthe500hPageo-potentialheightfieldhavebeencarriedout,usingthedatafromECMWFobjectiveanalysesthatcovertheperiodfromMay5toJune3,1982.Weperformthreemodelsimulations,includingexperimentswithinterac-tivecloudformation,withoutclouds,andwithoutradiativeheating.Thelattertwoexperimentsallowustostudytheeffectsofcloud/radiationinteractionsandfeedbacksonthepredictedverticalvelocity,andthemeridionalandzonalwindprofiles,averagedovera30-dayperiod.WedemonstratethattheHadleycirculationismaintainedbythepresenceofclouds.Theradiativecoolingintheatmosphereintensifiestheverticalmotioninlowlatitudesand,tosomeextent,alsostrengthenstheoverallmeridionalcirculation.Themeridionalwindsarecorrectlyreproducedinthemodelifcloudsareincorporated.Thezonalwindsaresignificantlyaffectedbycloudsandradiativecooling.Withoutanappropriateincor-porationofthesephysicalelements,themodelresultswoulddeviatesignificantlyfromobservations.Thepresenceofcloudsstrengthensthewesterliesinmiddleandhighlevels.InMay,thenortherlymovementofthejetstreamovereasternAsiais,inpart,associatedwiththepresenceofclouds.
出版日期
1989年05月15日（中国期刊网平台首次上网日期，不代表论文的发表时间）
