{"NOAAStudyId":"2449","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2001-01-01","dataPublisher":"NOAA","dataType":"ICE CORES","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/ice-core","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-icecore-2449.xml","doi":null,"earliestYearBP":21682,"earliestYearCE":-19732,"entryId":"noaa-icecore-2449","funding":[],"investigators":"Monnin, E.; Indermühle, A.; Dällenbach, A.; Flückiger, J.; Stauffer, B.; Stocker, T.F.; Raynaud, D.; Barnola, J.M.","mostRecentYearBP":9050,"mostRecentYearCE":-7100,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/2449","originalSource":null,"publication":[],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"19998","geo":{"geoType":"Feature","geometry":{"coordinates":["-75.1","123.4"],"type":"POINT"},"properties":{"easternmostLongitude":"123.4","maxElevationMeters":"3240","minElevationMeters":"3240","northernmostLatitude":"-75.1","southernmostLatitude":"-75.1","westernmostLongitude":"123.4"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"38333","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>atmospheric gas"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/domec_ch4.txt","linkText":"domec_ch4.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age>gas age"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE FORCING|ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"atmospheric material>bulk atmosphere","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"parts per billion","cvWhat":"chemical composition>compound>organic compound>hydrocarbon>alkane>n-alkane>methane"}]}],"dataTableName":"DomeConcordia CH4 Monnin2001","dataTableNotes":null,"earliestYear":21682,"earliestYearBP":21682,"earliestYearCE":-19732,"mostRecentYear":9050,"mostRecentYearBP":9050,"mostRecentYearCE":-7100,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"38334","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>atmospheric gas"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/domec_co2.txt","linkText":"domec_co2.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age>gas age"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE FORCING|ICE CORES","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"atmospheric material>bulk atmosphere","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"parts per million","cvWhat":"chemical composition>compound>inorganic compound>carbon dioxide"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE FORCING|ICE CORES","cvDetail":null,"cvError":"one standard deviation","cvFormat":"Numeric","cvMaterial":"atmospheric material>bulk atmosphere","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"parts per million","cvWhat":"chemical composition>compound>inorganic compound>carbon dioxide"}]}],"dataTableName":"DomeConcordia CO2 Monnin2001","dataTableNotes":"A record of atmospheric CO2 concentration during the transition \r\nfrom the Last Glacial Maximum to the Holocene, obtained from the \r\nDome Concordia (Antarctica) ice core, reveals that an increase of \r\n76 parts per million by volume (ppmv) occurred over a period of \r\n6 thousand years in four clearly distinguishable intervals. \r\nThe close correlation between CO2 concentration and Antarctic temperature indicates that the Southern Ocean played an important role in causing the CO2 increase. However, the similarity of changes in CO2 concentration and variations of atmospheric methane concentration suggests that processes in the tropics and in the northern hemisphere, where the main sources for methane are located, also had significant effects on atmospheric CO2 concentrations.","earliestYear":21676,"earliestYearBP":21676,"earliestYearCE":-19726,"mostRecentYear":9067,"mostRecentYearBP":9067,"mostRecentYearCE":-7117,"species":[],"timeUnit":"cal yr BP"}],"siteName":"EPICA Dome C"}],"studyCode":null,"studyName":"EPICA Dome C - Carbon Dioxide and Methane Data","studyNotes":"","version":"1.0","xmlId":"2230"}