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1 个结果
  • 简介:Inthisstudy,twopossiblepersistentanomaliesoftheMadden-JulianOscillationmode(MJO)arefoundinthesummerseason(persistentlyPacificactiveandIndianOceanactive),andanindexissettodefinetheintensityofthetwomodes.TheyareprovedtohavehighstatisticalcorrelationstothelaterENSOeventsintheautumnandwinterseasons:WhenpersistentanomalyofMJOhappensinthePacificOceaninsummer,ElNinoeventsareofteninducedduringtheautumnandwinterseasonsofthatyear.However,duringtheotherMJOmodewhenthesummerpersistentanomalyofMJOoccursintheIndianOcean,LaNinaeventsoftenfollowinstead.TheanalysisoftheatmosphericcirculationfieldindicatesthatpersistentanomalyofMJOcanprobablyaffecttheentireEquatorialPacificcirculation,andresultsinwindstressanomalies.Thewindstressanomaliescouldexcitewarmorcoldwatermasseswhichpropagateeastwardsatthesubsurfaceocean.TheaccumulationofwarmorcoldsubsurfacewaterintheEquatorialEasternPacificOceanmayeventuallyleadtotheformationofanENSO.

  • 标签: MJO ENSO wind stress sea surface