历年二氧化碳浓度数据.

[1]PielerT.Trendsinatmosphericcarbondioxide-Global.[2]EtheridgeDM,SteeleLP,elal.HistoricalCO2recordderivedfromasplinefit（20yearcutoff）oftheLawDomeDE08andDE08-2icecores.:PieterTans(3034976678;[e-mail])##FileCreation:WedJun512:05:502013##RECIPROCITY##Useofthesedataimpliesanagreementtoreciprocate.#Laboratoriesmakingsimilarmeasurementsagreetomaketheir#owndataavailabletothegeneralpublicandtothescientific#communityinanequallycompleteandeasilyaccessibleform.#Modelersareencouragedtomakeavailabletothecommunity,#uponrequest,theirowntoolsusedintheinterpretation#oftheESRLdata,namelywelldocumentedmodelcode,transport#fields,andadditionalinformationnecessaryforother#scientiststorepeattheworkandtorunmodifiedversions.#Modelavailabilityincludescollaborativesupportfornew#usersofthemodels.#--------------------------------------------------------------------###See(SIO)andwereobtainedfromthe#Scrippswebsite(scrippsco2.ucsd.edu).##Theestimateduncertaintyintheannualmeanisthestandarddeviation#ofthedifferencesofannualmeanvaluesdeterminedindependentlyby#NOAA/ESRLandtheScrippsInstitutionofOceanography.##NOTE:Ingeneral,thedatapresentedforthelastyeararesubjecttochange,#dependingonrecalibrationofthereferencegasmixturesused,andotherquality#controlprocedures.Occasionally,earlieryearsmayalsobechangedforthesame#reasons.Usuallythesechangesareminor.##CO2expressedasamolefractionindryair,micromol/mol,abbreviatedasppm##yearmeanunc1959315.970.121960316.910.121961317.640.121962318.450.121963318.990.121964319.620.121965320.040.121966321.380.121967322.160.121968323.040.121969324.620.121970325.680.121971326.320.121972327.450.121973329.680.121974330.180.121975331.080.121976332.050.121977333.780.121978335.410.121979336.780.121980338.680.121981340.100.121982341.440.121983343.030.121984344.580.121985346.040.121986347.390.121987349.160.121988351.560.121989353.070.121990354.350.121991355.570.121992356.380.121993357.070.121994358.820.121995360.800.121996362.590.121997363.710.121998366.650.121999368.330.122000369.520.122001371.130.122002373.220.122003375.770.122004377.490.122005379.800.122006381.900.122007383.760.122008385.590.122009387.370.122010389.850.122011391.630.122012393.820.12#--------------------------------------------------------------------#USEOFNOAAESRLDATA##Thesedataaremadefreelyavailabletothepublicandthe#scientificcommunityinthebeliefthattheirwidedissemination#willleadtogreaterunderstandingandnewscientificinsights.#Theavailabilityofthesedatadoesnotconstitutepublication#ofthedata.NOAAreliesontheethicsandintegrityoftheuserto#insurethatESRLreceivesfaircreditfortheirwork.Ifthedata#areobtainedforpotentialuseinapublicationorpresentation,#ESRLshouldbeinformedattheoutsetofthenatureofthiswork.#IftheESRLdataareessentialtothework,orifanimportant#resultorconclusiondependsontheESRLdata,co-authorship#maybeappropriate.Thisshouldbediscussedatanearlystagein#thework.ManuscriptsusingtheESRLdatashouldbesenttoESRL#forreviewbeforetheyaresubmittedforpublicationsowecan#insurethatthequalityandlimitationsofthedataareaccurately#represented.##Contact:PieterTans(3034976678;[e-mail])##FileCreation:WedJun512:05:502013##RECIPROCITY##Useofthesedataimpliesanagreementtoreciprocate.#Laboratoriesmakingsimilarmeasurementsagreetomaketheir#owndataavailabletothegeneralpublicandtothescientific#communityinanequallycompleteandeasilyaccessibleform.#Modelersareencouragedtomakeavailabletothecommunity,#uponrequest,theirowntoolsusedintheinterpretation#oftheESRLdata,namelywelldocumentedmodelcode,transport#fields,andadditionalinformationnecessaryforother#scientiststorepeattheworkandtorunmodifiedversions.#Modelavailabilityincludescollaborativesupportfornew#usersofthemodels.#--------------------------------------------------------------------###See