數(shù)據(jù)集描述信息

1、數(shù)據(jù)集名中文名稱全球1x1度區(qū)域海溫30年氣候月平均數(shù)據(jù)集描述信息數(shù)據(jù)集代碼T8004-2/DS010-6主題自由關(guān)鍵詞海溫學(xué)科主題詞主題詞主題詞表描述Themonthlyoptimuminterpolation(01)fieldsarederivedbyalinearinterpolationoftheweekly01fieldstodailyfieldsthenaveragingthedailyvaluesoveramonth.Themonthlyfieldsareinthesameformatandspatialresolutionastheweeklyfields.The01seasu

2、rfacetemperature(SST)analysisisproducedweeklyonaone-degreegrid.TheanalysisusesinsituandsatelliteSSTsplusSST'ssimulatedbysea-icecover.Beforetheanalysisiscomputed,thesatellitedataisadjustedforbiasesusingthemethodofReynolds(1988)andReynoldsandMarsico(1993).Adescriptionofthe01analysiscanbefoundinRey

3、noldsandSmith(1994).Thebiascorrectionimprovesthelargescaleaccuracyofthe01.ExamplesoftheeffectofrecentcorrectionsisgivenbyReynolds(1993).7orthemorerecentperiod,1990-present,theinsitudatawereobtainedfromradiomessagescarriedontheGlobalTelecommunicationSystem.Thesatelliteobservationswereobtainedfromoper

4、ationaldataproducedbytheNationalenvironmentalSatellite,DataandInformationService(NESDIS).)uringtheperiod1981-1989,theinsitudatawereobtainedfromtheComprehensiveOceanAtmosphereDataSet(COADS)forthe1980s.Thesedata(seeSlutz,etal.,1985,andWoodruff,etal.,1993)consistoflogbookandradioreports.Thesatellitedat

5、awereobtainedfromanalysesofNESDISdataproducedattheUniversityofMiami5sRosentielSchoolofMarineandAtmosphericSciences.The01analysisisdoneoveralloceanareas.Thereisnoanalysisoverland.ThelandvaluesarefilledbyaCressmaninterpolationtoproduceacompletegridforpossibleinterpolation.Theoceanandlandareasaredefine

6、dbyalandseamask.類型02數(shù)據(jù)量存儲量19.9MB記錄數(shù)數(shù)據(jù)來源NCARDS277.0數(shù)據(jù)集提供者134111更新頻率01數(shù)據(jù)集時間創(chuàng)建時間1995-01-01最近修改時間2002-12-31發(fā)布時間語種ZH稱英文名稱字符集URLhttp：/www.atmosphere,離線媒體關(guān)聯(lián)數(shù)據(jù)集關(guān)聯(lián)數(shù)據(jù)集名稱關(guān)聯(lián)類型關(guān)聯(lián)URL地址觀測時次空間編排方式（包括：空間分辨率、空間編排方式、坐標(biāo)系）經(jīng)緯度網(wǎng)格分辨率：1°X1°經(jīng)向：從179.5°W佝東排到179.5°E共360點(diǎn)緯向：從89.5°S向北排到89.5°N共180個點(diǎn)。網(wǎng)

7、格點(diǎn)數(shù)：360X180=64800注意：海表溫度為rX1°,經(jīng)緯度網(wǎng)格內(nèi)的區(qū)域平均值，上面給出的起始經(jīng)緯度值是1°X1°經(jīng)緯度網(wǎng)格區(qū)域中心點(diǎn)的經(jīng)緯度值垂直層統(tǒng)計(jì)特征氣候月平均要素參數(shù)表要素要素名稱海溫名稱縮寫度要素編碼計(jì)量單位層次類型層次值網(wǎng)格類型經(jīng)緯度樣本類型統(tǒng)計(jì)特征氣候月平均數(shù)據(jù)集范圍信息學(xué)科范圍一級分類170二級分類170.15時間范圍時間點(diǎn)日期時間段開始時間日期1981.11結(jié)束時間日期1997.12空間范圍地理名稱行政區(qū)域名稱地理區(qū)域名稱經(jīng)緯度范圍點(diǎn)范圍經(jīng)度緯度平面范圍東部經(jīng)度-179.5西部經(jīng)度179.5南部緯度-89.5北部緯度89.5范圍描述地理標(biāo)

8、識數(shù)數(shù)據(jù)質(zhì)量狀況居wg*爹也黑A：X彩氧河如月旬3庫人名東傳年TUP、時22_一屋息元數(shù)落4間個人2爾傳年T殍時附錄:ProgramtoreadWEEKLY,MONTHLYcompocpsite,andCLIMATOLOGYgrids.Allgridsarelxl,(360,180),(longitude,latitude).Eachglobalgridispreceededbyasingleheaderrecord.ThetablebelowshowsthemeaningoftheheaderrecordvariablesforeachofthethreeSSTdataproducts.IY

9、RST IMST IDSTIYREND INEND IDENDXDAYS INDEXWEEKLY(startdate,yr/mn/day)(enddate,yr/mn/day)7?MONTHLY(yr/mn/1)(yr/mn/day)days/mn?CLIM.(99/mn/l)(99/mn/day)days/mnNote:numericconstantsdenotefixedplace-holdervaluesFollowingtheheaderareintegerSSTvaluesindegreesCtime100,withformat(2014).Thesedataarereadintoi

10、ntegerarrayISST,convertedtodegreeC,andplacedintorealarraySST.Thegeo-locationoftheSSTarrayelementsare:SST(1,1)=179.5W,89.5SSST(1,2)=179.5W,88.5SSST(2,1)=178.5W,89.5SSST(360,180)=179.5E,89.5NNOTES:1) allvalueslessthanorequaltoT.78Careice2) aland/seamaskshouldbeusedtomaskout01SSTanalyzedvaluesnotlocate

11、dintheocean,gramIs.fanddatafileIs.datThemonthlyoptimuminterpolation(01)fieldsarederivedbyalinearinterpolationoftheweekly01fieldstodailyfieldsthenaveragingthedailyvaluesoveramonth.Themonthlyfieldsareinthesameformatandspatialresolutionastheweeklyfields.The01seasurfacetemperature(SST)analysisisp

12、roducedweeklyonaone-degreegrid.TheanalysisusesinsituandsatelliteSST'splusSST'ssimulatedbysea-icecover.Beforetheanalysisiscomputed,thesatellitedataisadjustedforbiasesusingthemethodofReynolds(1988)andReynoldsandMarsico(1993).Adescriptionofthe01analysiscanbefoundinReynoldsandSmith(1994).Thebias

13、correctionimprovesthelargescaleaccuracyofthe01.ExamplesoftheeffectofrecentcorrectionsisgivenbyReynolds(1993).Forthemorerecentperiod,1990-present,theinsitudatawereobtainedfromradiomessagescarriedontheGlobalTelecommunicationSystem.ThesatelliteobservationswereobtainedfromoperationaldataproducedbytheNat

14、ionalEnvironmentalSatellite,DataandInformationService(NESDIS).Duringtheperiod1981-1989,theinsitudatawereobtainedfromtheComprehensiveOceanAtmosphereDataSet(COADS)forthe1980s.Thesedata(seeSlutz,etal.,1985,andWoodruff,etal.,1993)consistoflogbookandradioreports.Thesatellitedatawereobtainedfromanalysesof

15、NESDISdataproducedattheUniversityofMiami'sRosentielSchoolofMarineandAtmosphericSciences.The01analysisisdoneoveralloceanareas.Thereisnoanalysisoverland.ThelandvaluesarefilledbyaCressmaninterpolationtoproduceacompletegridforpossibleinterpolation.Theoceanandlandareasaredefinedbyalandseamask.REFEREN

16、CESReynolds,R.W.,1988:Areal-timeglobalseasurfacetemperatureanalysis.J.Climate,1,75-86.Reynolds,R.W.,1993:ImpactofMountPinatuboaerosolsonsate11ite-derivedSeaSurfaceTemperatures.J.Climate,6,768-774.Reynolds,R.W.andD.C.Marsico,1993:Animprovedreal-timeglobalseasurfacetemperatureanalysis.J.Climate,6,114-

17、119.Reynolds,R.W.andT.MSmith,1994:Improvedglobalseasurfacetemperatureanalyses.J.Climate,7,929-948.Slutz,R.J.,S.J.Lubker,J.D.Hiscox,S.D.Woodruff,R.L.Jenne,D.H.Joseph,P.M.Steuer,J.D.Elms,1985:ComprehensiveOcean-AtmosphereDataSet:Release1.NOAAEnvironmentalResearchLaboratory,Boulder,CO,268pp.Woodruff,S.

18、D.,S.J.Lubker,K.Wolter,S.J.Worley,andJ.D.Elms,1993:ComprehensiveOcean-AtmosphereDataSet(COADS)Releasela:1980-1992.EarthSystemMonitor,Vol.4,No.1,September1993,NOAA.RichardW.Reynolds(INTERNET:)DianeC.Stokes(INTERNET:)ClimateModelingBranchW/NP24Environm

19、entalModelingCenterNationalCentersforEnvironmentalPredictionWorldWeatherBuilding,Room8075200AuthRoadCampSprings,MD20746USAPHONE:(301)763-8396FAX:(301)763-8125AbstractInresponsetothedevelopmentofanewhigherresolutionseasurfacetemperature(SST)analysisattheNationalMeteorologicalCenter(NMC),anewmonthly1-

20、degreeglobalseasurfacetemperatureclimatologywasconstructedfromtwointermediateclimatologies:the2-degreeSSTclimatologypresently,usedatNMCanda1-degreeSSTclimatologyderivedfromthenewanalysis.The2-degreeSSTclimatologyuseda30-year1950-79baseperiodbetweenroughly40Sand60Nbasedoninsitu(shipandbuoy)SSTdatasup

21、plementedby4years(1982-85)ofsatelliteSSTretrievals.The1-degreeSSTclimatologywasbasedonmonthlyanalysesusinginsituSSTdata,satelliteSSTretrievals,andsea-icecoveragedataovera12-yearperiod(1982-93).Thefinalclimatologywascombinedfromthesetwoproductssothata1-degreeresolutionwasmaintainedandthebaseperiodwas

22、adjustedtothe1950-79periodwhereverpossible(approximately40Sand60N).Comparedtothe2-degreeclimatology,the1-degreeclimatologyresolvesequatorialupwellingandfrontsmuchbetter.Thisleadstoabettermatchingofthescalesofthenewanalysisandclimatology.Inaddition,becausethemagnitudesoflarge-scalefeaturesareconsiste

23、ntlymaintainedinboththeolder2-degreeandthenew1-degreeclimatologies,climatemonitoringoflarge-scaleanomalieswillbeminimallyaffectedbytheanalysischange.Theuseof12yearsofsatelliteSSTretrievalsmakesthisnewclimatologyusefulformanyadditionalpurposesbecauseitseffectiveresolutionactuallyapproaches1-degreeeverywhereovertheglobaloceanandbecausethemeanSSTvaluesaremoreaccuratesouthof40Sthanclimatologieswithoutthesedata.Reynolds,R.W.andT.M.Smith,1994:Ahighr