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1、NumericalsimulationoftheYellowSeacoldwatermassseasonalchangesAbstract：YellowSeacoldwatermass,isauniquehydrologicalphenomenapresentedintheYellowSea,therehavetwocoldcenterintheSouthYellowSeaandnortherninSummer.TheFVCOMmodel(FVCOM，F(xiàn)initeVolumeCoastandOceanModel)byf
2、initevolumemethodwithirregulartriangularmeshisusedinthispaper.Basedonthenewterrainandshorelinedata,thetidesandtidalcurrentsaswellastemperatureinYellowandBohaiSeaareaccuratelysimulated.Throughnumericalexperiments,thetemperatureandcirculationoftheYellowSeaColdWate
3、rMassareinvestigatedintheseasonalscaleandtheinfluencesofseaice,windandtidesarediscussed.Firstly,theYellowSea,theBohaiSeatides,positivetrendsweresimulatedandthemainfeaturesofthetides,tideandtide-inducedresidualcurrentEuler;simulationresultsshow:ThemaintidalM2andS
4、2formfourrotatingsystemineachoftheBohaiSeaandtheYellowSea，thetidepointsdeviatetotheChinalandside。Full-daytidalwaveK1and01aredistributedintheYellowSeaandBohaiSeasimilarly。Theyareallhaveano-tidepointclosetothecentralYellowSeaandBohaiStrait，Thesameamplitudelinesare
5、distributedliketheconcentricasthecenteroftheno-tidepoint，Allthetidalwavesystemarecounterclockwise,SofromHebei,ShandongandJiangsucoastalview,thetidalwaveispropagatingfromnorthtosouth.Eulerresidentialcurrentaregenerallyweak,theflowrateisgenerallylessthan5cm/s.萬方數(shù)據(jù)
6、AccordingtohighspatialandtemporalresolutionofNCEP-CFSRdatasets,addingseaicemoduleintothemodelaswellasconsideringtheeffectsoftide,windfield,heatflux,solarshortwaveradiation,precipitationandevaporation,three-dimensionalthermohalinestructureissuccessfullysimulatedt
7、hroughouttheyearinYellowandBohaiSea.AnalysisofmodelresultsindicatesthatthewinterSSTdistributionshowsthetendencyoflowwesthigheastaswellasnorthandsouthhighlowcenterinoverallinYellowandBohaiSea.Inaddition,centralwatersisothermpresentszonaldistributionandeachlayerof
8、theSSTdistributesuniformity.InSpring,thedistributionofSSTismoreuniformonsurface.Withtheincreaseofdepth,coastalandcentraltemperaturedifferenceincreasesgradually,theund
