资源描述：
《Siple站的冰芯二氧化碳历史记录,南极洲》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、Siple站的冰芯二氧化碳历史记录,南极洲(HistoricalCarbonDioxideRecordfromtheSipleStationIceCore,Antarctica)数据介绍：DeterminationsofancientatmosphericCO2concentrationsforSipleStation,locatedinWestAntarctica,werederivedfrommeasurementsofairoccludedina200-mcoredrilledatSipleStationintheAntarcticsu
2、mmerof1983-84.ThecorewasdrilledbythePolarIceCoringOfficeinNebraskaandthePhysicsInstituteattheUniversityofBern.Theicecouldbedatedwithanaccuracyofapproximately±2yearstoadepthof144m(whichcorrespondstotheyear1834)bycountingseasonalvariationsinelectricalconductivity.Belowthatdep
3、th,thecorewasdatedbyextrapolation(Friedlietal.1986).关键词：数据格式：TEXT数据详细介绍：HistoricalCarbonDioxideRecordfromtheSipleStationIceCoreInvestigatorsA.Neftel,H.Friedli,E.Moor,H.Lötscher,H.Oeschger,U.Siegenthaler,B.StaufferPhysicsInstitute,UniversityofBern,CH-3012Bern,SwitzerlandPeri
4、odofRecord1734-1983MethodsDeterminationsofancientatmosphericCO2concentrationsforSipleStation,locatedinWestAntarctica,werederivedfrommeasurementsofairoccludedina200-mcoredrilledatSipleStationintheAntarcticsummerof1983-84.ThecorewasdrilledbythePolarIceCoringOfficeinNebraskaan
5、dthePhysicsInstituteattheUniversityofBern.Theicecouldbedatedwithanaccuracyofapproximately±2yearstoadepthof144m(whichcorrespondstotheyear1834)bycountingseasonalvariationsinelectricalconductivity.Belowthatdepth,thecorewasdatedbyextrapolation(Friedlietal.1986).Thegasesfromices
6、ampleswereextractedbyadry-extractionsystem,inwhichbubbleswerecrushedmechanicallytoreleasethetrappedgases,andthenanalyzedforCO2byinfraredlaserabsorptionspectroscopyorbygaschromatography(Nefteletal.1985).Aftertheicesampleswerecrushed,thegasexpandedoveracoldtrap,condensingthew
7、atervaporat-80°Cintheabsorptioncell.TheanalyticalsystemwascalibratedforeachicesamplemeasurementwithastandardmixtureofCO2innitrogenandoxygen.Forfurtherdetailsontheexperimentalanddatingprocedures,seeNefteletal.(1985),Friedlietal.(1986),andSchwanderandStauffer(1984).SipleStati
8、on,Antarctica75°55'S,83°55'WTrendsAnatmosphericCO2recordforthepast200yearswasobtai
