摘要
TheavailabledataontidalcurrentsspanningperiodsgreaterthansixmonthsforthecontinentalshelfoftheEastChinaSea(26°30.052′N,122°35.998′E)wereanalyzedusingseveralmethods.TidalCurrentHarmonicAnalysisresultsdemonstratedthatsemi-diurnaltidesdominatedthecurrentmovement.Thetidalcurrentsoftheprincipaldiurnalandsemidiurnalrotatedclockwisewithdepth,withthedeflectionofthemajorsemi-axestotherightintheupperlayerandtotheleftinthelowerlayer.Theverticalstructuresoftwoprincipalsemi-diurnalconstituents-M2andS2-weresimilar,whichindicatesthatthetidalcurrentsaremainlybarotropicinthisarea.Themainfeaturesofthevariationofthefourprincipaltidalconstituentswithdepthdemonstratethatthecurrentsinthisregionareinfluencedbytheupperandlowerboundarylayers.Therefore,thetidalconstituentsoftheshallowwateraresimilar.DifferentverticalmodeswerecalculatedbasedontheEmpiricalOrthogonalFunction(EOF)analysisoftheEasternandNortherncomponentsofthetidalcurrents,withavariancecontributionforthezero-ordermodelofatleast90%.Thevariancecontributionofthebaroclinicmodelisminimal,whichfurtherrevealsastrongbarotropiccharacterforthetidalcurrentsofthisregion.
出版日期
2012年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)