《Relations between Low-Frequency Modes of Climate Variability and Air-Sea Heat Flux at the Mediterranean Interface》.pdf

JournalofEachScienceandEngineering4(2014)101-106 N 锰 RelationsbetweenLow-·FrequencyModesofClimate VariabilityandAir-S·eaHeatFluxattheMediterranean lnte aCe LamriNacefandNourEIIslam Bachari DepartmentofEcologyandEnvironment，FaculytofBiologicalSciences，HouariBoumedieneUniversityofScienceandTechnoloyg Algiers161li．Algeria Received：December02 2013|Accepted：January172014 |Published：February25，2014 Abstract：Themainobjectiveofthisworkistoexaminestatisticalcausalityrelationshipsbetweenlow-rfequencymodesofclimate variabilityandwinter(DecembertoFebruary)anomalyofnetheatfluxattheMediterraneanair—seainterface．Theintroductionofthe conceptofGrangercausalityallowedustoexaminetheinfluenceoftheseclimatesjndicesonthenetheatfluxanomalyandtoselect Mediterraneansurfaceregionsthatreallyinfluencedbyeachindex．Resultsshow thatthewinteranomalyofthenetheatfluxinthe AlgerianbasinsouthandthegulfofLionismainlycausedbytheArcticOscillation．EINifio—SouthernOscillationinfluencesmuch moretheAlgerianbasinnorthandthenorthern IonianSea．TheOuasi．BiennialOscillationaffectsonlytheAlboranandthe TyrrhenianSeasButtheAdriaticandLevantinebasinareimpactedbyanyclimateindex．Theyalsoshowthattheseclimateindices canincreaseexplainedvarianceinwintervariationsofair．seanetheatfluxbv l0％ to l5％．with alagofthreeseasons These relationshipsarelesspersistentandspatiallylimited． Keywords：MediterraneanSea，winternetheatflux，air-seainterface，climateindex，causalityanalysis 1．Intr0ductiOn SST anomaliescouldbetheresultofpersistence，or eventhepreviousatmosphericanomaliesaffectingthe Generally．the ocean．atmosphere interactionsare SSTduringpreviousseasons．So，itispossiblethatthe dominatedbyatmosphericforcingwhichproducesthe