北太平洋副热带逆流的气候特征 3

24320005ChineseJournalofAtmosphericSciencesVol124,No13May20001999-01-20,1999-09-063499760043(,266003)(,100029)199210199610TOPEX/POSEIDONPOCM(SSH)LevitusNCEP/NCAR137E,,(STCC)18N25N130E157W150m,0.020.04m/s,(7),(1)STCC650m,,0.020.04m/sSTCC,SSH90,STCC,:;;90;1YoshidaKidokoro[1](20N30N),(STCC)25NUda[2](20N25N),,,,,,,[3,4]90,5,TOPEX/POSEIDON,(OGCM)Qiu[5]T/PSTCC,,STCCSTCC,STCC,,,,©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[6](POCM)SSHNCEP/NCAR19801995137E,STCC22.1TOPEX/POSEIDON,TOPEX9.9156,,Geosat,,10d(19921071996110)22(SSH)SSH(T/P)2.2POCMSSHPOCMSemtner&Chervin,,WOCEPOCM0.250.25,20,,SSHPOCM-4APOCM-4BPOCM-4ALevitusECMWFPOCM-4A198619893,POCM-4B1996POCM-4BECMWF,Levitus,[7]SSHPOCM-4B,19921031996109,10148,T/P[8]SSH2.3137E19921993RyofuMaru,19901991(1)(7)137E50100150200m2.4LevitusLevitus,Levitus11,31,010203050751001251502002503004005006007008009001000110012001300140015002000250030003500400045005000mChu[9]P-Vector,,,P-Vector[10]46324©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(NCEP)(NCAR),19801995,1.5()1(),53126m271000m3POCMT/P[7],POCM4SSH(),23NSSH,18NSSH,18N23N130E150W,20NKidokoro(STCC)SSH(4)(1)(2),SSH,(130E150E),STCCLevitusP3P63,2025N137N,167W,149WSTCCSTCC145E,0.02m/s,0.04m/s137E145E,150m650m(0.020.04m/s),(NEC)NCEP/NCAR(19801995),(4)NCEP/NCAR145E180167W(),P,Levitus[6]P,0.010.02m/s,0.04m/s(7167W)3,STCC1825N130E157W150m,0.020.04m/s(7)(1)4SSHSTCC,,SSHSSH(T/P),80109(variance)5633:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(SSH)(199210199610:cm)(totalvariance)0.3(off-equator),20N20S,10S10N0.3,0.4(130E170W),,0.2(),TOPEX:24N,TOPEX84119d()(120E140W),;19N,TOPEX84119d66324©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(199210199610)(117E150W),4565(117130E),84119d;14N,TOPEX;5N,TOPEX7633:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(a)137E;(b)145E;(c)165E;14710,90d60d30d3,2,3035d,(155110W)():STCC,SSH90d,5(MonthlyOceanRe2port),,,20N,3001000km,86324©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()(d)180;(e)167W;(f)149W14710,,137E(19901991)(),1530N,,,20N,,(19901)20N(19907)0.8m/s(24N)0.6m/s(20N)POCMSSH10d,,10d,20N,20N,9633:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(a)145E(b)180(c)167W()-()14710,6TOPEX/POSEIDONPOCM(SSH),Levitus137E,07324©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(7)(1)STCC650m,NEC,0.020.04m/sSTCCSSH90d,20N,120E150W,80109d0.3,STCC,STCC,STCC:PeteBraccioPOCMSSH1Yoshida,K.andT.Kidikoro,AsubtropicalcountercurrentintheNorthPacific?Aneastwardflownearthesubtropicalconvergence,J.Oceanogr.Soc.Japan,1967,23(2),8891.2Uda,M.andK.Hasunuma,TheeastwardsubtropicalcountercurrentinthewesternNorthPacificOcean,J.O2ceanogr.Soc.Japan,1969,25(4),201210.3,,,1987,5(4),6572.4,(),,1988,6(1),7186.5Qiu,B.,VariabilityoftheNorthPacificSubtropicalCountercurrentfromtheTOPEX/POSEIDONAltimetricobserva2tions,J.Phys.Oceanogr.,1999,29(10),24712486.6Levitus,S.,ClimatologicalAtlasoftheWorldOcean,NOAAProfessionalPaper,13,U.S.GovernmentPrintingOf2fice,Washington,D.C.,1982,173pp.7Semtner,A.J.Jr.andR.M.Chervin,Oceangeneralcirculationfromaglobaleddy-resolvingmodel,J.Geophys.Res.,1992,97,54935550.8Stammer,D.C.RuTokmakian,A.J.Semtner,andC.Wunsch,Howwelldoesa1/4oglobalcirculationmodelsimu2latelarge-scaleoceanicobservations?,J.Geophys.Res.,1996,101(C10),2577925811.9Chu,P.C.,P-vectormethodfordeterminingabsolutevelocityfromhydrographicdata,MarineTechnologySocietyJournal,1995,29(3),314.10Chu,P.C.,C.FanandW.Cai,P-VectorInverseMethodEvaluatedUsingtheModularOceanModel(MOM),JournalofOceanography,1998,54,185198.1733:©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(InstituteofPhysicalOceanography,OceanUniversityofQingdao,Qingdao266003)LiWei(StateKeyLaboratoryofNumericalModelingforAtmosphericSciencesandGeophysicalFluidDynamics,InstituteofAtmosphericPhysics,ChineseAcademyofSciences,Beijing100029)AbstractSeaSurfaceHeight(SSH)datafromTOPEX/POSEIDONmissionandPOCMoutput(October1992-October1996),temperatureandsalinitydatafromLevitus,reanalysisoceanicdatafromtheNationalCentersforEnvironmentalPrediction/NationalCenterforAtmosphericResearchandcurrentdataalong137oEareanalyzedinthepresentstudy.TheresultsshowthatthereisaneastwardSubtropicalCountercurrent(STCC)intheupperlayerabove150minthescopeof18oN25oNand130oE157oWintheNorthPacificonthetemporalscaleofbothannualmeanandmonthlymean,withthevelocityof0.020.04m/s.STCCisthestrongestinsummer(July)andweakestinwinter(January)inthewesternPacific.BeneathSTCCandabove650m,thereisawestwardcurrentataspeedofabout0.020.04m/s.Remarkablequas