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两类ENSO事件衰减期位涡异常及对中国东部春季降水的影响.docx

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两类ENSO事件衰减期位涡异常及对中国东部春季降水的影响 Title:TheImpactofDecayingENOSEventsandVortexAnomaliesonSpringPrecipitationinEasternChina Abstract: TheElNiño-SouthernOscillation(ENSO)isasignificantclimatephenomenonthatinfluencesweatherpatternsaroundtheworld.Inthisstudy,weinvestigatethedecayingphaseofENSOeventsandtheirconnectiontovortexanomalies,andanalyzetheirimpactonspringprecipitationineasternChina.OurfindingsshedlightonthecomplexrelationshipsbetweenENSO,vortexanomalies,andregionalclimatevariability. 1.Introduction 1.1Background 1.2ResearchObjectives 2.ElNiño-SouthernOscillation(ENSO) 2.1DefinitionandMechanism 2.2PhasesofENSO 2.3PreviousStudiesonEnsoDecay 3.VortexAnomaliesintheAtmosphere 3.1ThePolarVortex 3.2VortexAnomaliesandClimatePatterns 3.3RelationbetweenENSOandVortexAnomalies 4.Methodology 4.1DataSources 4.2StudyPeriodandRegion 4.3StatisticalAnalysisTechniques 5.Results 5.1CharacterizingENSODecayPatterns 5.2VortexAnomaliesassociatedwithENSODecay 5.3RelationshipbetweenVortexAnomaliesandSpringPrecipitationinEasternChina 5.4ImpactofENSODecayonSpringPrecipitation 6.Discussion 6.1UnderstandingtheLinkagesbetweenENSO,VortexAnomalies,andSpringPrecipitation 6.2ImplicationsforClimateVariabilityandPredictability 6.3SignificanceforEasternChina'sWaterResourcesManagementandAgriculture 7.Conclusion 7.1SummaryofFindings 7.2LimitationsandFutureResearch References ThispaperaimstoinvestigatethedecayingphaseoftheElNiño-SouthernOscillation(ENSO)eventsandtheirinfluenceonvortexanomalies,aswellastheirimpactonspringprecipitationineasternChina.TheElNiñoandLaNiñaphasesofENSOhavebeenextensivelystudied,butthedecayingphaseanditsrelationshipwithvortexanomaliesarerelativelylessunderstood. Thepaperwillbeginwithanintroduction,providinganoverviewofENSOanditsimportanceinglobalclimatepatterns.ItwillthendelveintothemechanismsofENSOandthevariousphasesittransitionsthrough.Next,theconceptofvortexanomaliesandtheirassociationwithclimatepatternswillbeexplored,followedbyanexaminationoftherelationshipbetweenENSOandvortexan