{"NOAAStudyId":"16492","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":"2014-05-27","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-16492.xml","doi":null,"earliestYearBP":110522,"earliestYearCE":-108572,"entryId":"noaa-icecore-16492","funding":[{"fundingAgency":"Swiss National Science Foundation","fundingGrant":null},{"fundingAgency":"Prince Albert II of Monaco Foundation","fundingGrant":null}],"investigators":"Schüpbach, S.; Federer, U.; Bigler, M.; Fischer, H.; Stocker, T.F.","mostRecentYearBP":53612,"mostRecentYearCE":-51662,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/16492","originalSource":null,"publication":[{"abstract":"A precise synchronization of different climate records is indispensable for a correct dynamical interpretation of paleoclimatic data. A chronology for the TALDICE ice core from the Ross Sea sector of East Antarctica has recently been presented based on methane synchronization with Greenland and the EDC ice cores and d18Oice synchronization with EDC in the bottom part (TALDICE-1). Using new high-resolution methane data obtained with a continuous flow analysis technique, we present a refined age scale for the age interval from 55-112 thousand years (ka) before present, where TALDICE is synchronized with EDC. New and more precise tie points reduce the uncertainties of the age scale from up to 1900 yr in TALDICE-1 to below 1100 yr over most of the refined interval and shift the Talos Dome dating to significantly younger ages during the onset of Marine Isotope Stage 3. Thus, discussions of climate dynamics at sub-millennial time scales are now possible back to 110 ka, in particular during the inception of the last ice age. Calcium data of EDC and TALDICE are compared to show the impact of the refinement to the synchronization of the two ice cores not only for the gas but also for the ice age scale.","author":{"name":"S. Schüpbach, U. Federer, M. Bigler, H. Fischer, and T.F. Stocker"},"citation":"S. Schüpbach, U. Federer, M. Bigler, H. Fischer, and T.F. Stocker. 2011. A refined TALDICE-1a age scale from 55 to 112 ka before present for the Talos Dome ice core based on high-resolution methane measurements. Climate of the Past, 7(3), 1001-1009. doi: 10.5194/cp-7-1001-2011","edition":null,"identifier":{"id":"10.5194/cp-7-1001-2011","type":"doi","url":"http://dx.doi.org/10.5194/cp-7-1001-2011"},"issue":"3","journal":"Climate of the Past","pages":"1001-1009","pubRank":"1","pubYear":2011,"reportNumber":null,"title":"A refined TALDICE-1a age scale from 55 to 112 ka before present for the Talos Dome ice core based on high-resolution methane measurements","type":"publication","volume":"7"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"31509","geo":{"geoType":"Feature","geometry":{"coordinates":["-72.8166","159.1833"],"type":"POINT"},"properties":{"easternmostLongitude":"159.1833","maxElevationMeters":"2315","minElevationMeters":"2315","northernmostLatitude":"-72.8166","southernmostLatitude":"-72.8166","westernmostLongitude":"159.1833"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"26648","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>atmospheric gas"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/taldice2011ch4.txt","linkText":"TALDICE Ice Core Methane Data","urlDescription":"Data File","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":"gas chromatography","cvSeasonality":null,"cvShortName":null,"cvUnit":"parts per billion","cvWhat":"chemical composition>compound>organic compound>hydrocarbon>alkane>n-alkane>methane"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE FORCING|ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"atmospheric material>bulk atmosphere","cvMethod":"continuous flow analysis","cvSeasonality":null,"cvShortName":null,"cvUnit":"parts per billion","cvWhat":"chemical composition>compound>organic compound>hydrocarbon>alkane>n-alkane>methane"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE FORCING|ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"atmospheric material>bulk atmosphere","cvMethod":"wet extraction","cvSeasonality":null,"cvShortName":null,"cvUnit":"parts per billion","cvWhat":"chemical composition>compound>organic compound>hydrocarbon>alkane>n-alkane>methane"}]}],"dataTableName":"TALDICE2011CH4MIS3","dataTableNotes":null,"earliestYear":110522,"earliestYearBP":110522,"earliestYearCE":-108572,"mostRecentYear":53612,"mostRecentYearBP":53612,"mostRecentYearCE":-51662,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"26649","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>chemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/taldice2011ca.txt","linkText":"TALDICE Ice Core Calcium Data","urlDescription":"Data File","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>ice age"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":"continuous flow analysis","cvSeasonality":null,"cvShortName":null,"cvUnit":"parts per billion","cvWhat":"chemical composition>element or single-element molecule>calcium"}]}],"dataTableName":"TALDICE2011Ca","dataTableNotes":null,"earliestYear":80842,"earliestYearBP":80842,"earliestYearCE":-78892,"mostRecentYear":54172,"mostRecentYearBP":54172,"mostRecentYearCE":-52222,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Talos Dome TALDICE"}],"studyCode":null,"studyName":"TALDICE Ice Core 55-112 KYrBP Methane and Calcium Data","studyNotes":"High-resolution methane and calcium data from the TALDICE ice core, used in development of the TALDICE 1a timescale, synchronized to the EPICA Dome C ice core.","version":"1.0","xmlId":"14219"}