{"NOAAStudyId":"24170","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":"2018-07-11","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-24170.xml","doi":null,"earliestYearBP":46441,"earliestYearCE":-44491,"entryId":"noaa-icecore-24170","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"ANT 0838936"}],"investigators":"Bauska, T.K.; Brook, E.J.; Marcott, S.A.; Baggenstos, D.; Shackleton, S.; Severinghaus, J.; Petrenko, V.V.","mostRecentYearBP":10919,"mostRecentYearCE":-8969,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/24170","originalSource":null,"publication":[{"abstract":null,"author":{"name":"Bauska, T.K., Baggenstos, D., Brook, E.J., Mix, A.C., Marcott, S.A, Petrenko, V.V., Schaefer, H., Severinghaus, J.P., and Lee, J.E."},"citation":"Bauska, T.K., Baggenstos, D., Brook, E.J., Mix, A.C., Marcott, S.A, Petrenko, V.V., Schaefer, H., Severinghaus, J.P., and Lee, J.E. 2016. Carbon isotopes characterize rapid changes in atmospheric carbon dioxide during the last deglaciation. Proceedings of the National Academy of Sciences, 113(13), 3465-3470. doi: 10.1073/pnas.1513868113","edition":null,"identifier":{"id":"10.1073/pnas.1513868113","type":"doi","url":"http://dx.doi.org/10.1073/pnas.1513868113"},"issue":"13","journal":"Proceedings of the National Academy of Sciences","pages":"3465-3470","pubRank":"2","pubYear":2016,"reportNumber":null,"title":"Carbon isotopes characterize rapid changes in atmospheric carbon dioxide during the last deglaciation","type":"publication","volume":"113"},{"abstract":"Changes in atmospheric CO2 on millennial-to-centennial timescales are key components of past climate variability during the last glacial and deglacial periods (70-10ka) yet the sources and mechanisms responsible for the CO2 fluctuations remain largely obscure. Here we report the 13C/12C ratio of atmospheric CO2 during a key interval of the last glacial period at sub-millennial resolution, with coeval histories of atmospheric CO2, CH4 and N2O concentrations. The carbon isotope data suggest that the millennial-scale CO2 variability in MIS3 is driven largely by changes in the organic carbon cycle, most likely by sequestration of respired carbon in the deep ocean. Centennial-scale CO2 variations, distinguished by carbon isotope signatures, are associated with both abrupt hydrological change in the tropics (e.g. Heinrich Events) and rapid increases in northern hemisphere temperature (DO events). These events can be linked to modes of variability during the last deglaciation, thus suggesting that drivers of millennial and centennial CO2 variability during both periods are intimately linked to abrupt climate variability.","author":{"name":"T.K. Bauska, E.J. Brook, S.A. Marcott, D. Baggenstos, S. Shackleton, J.P. Severinghaus, V.V. Petrenko"},"citation":"T.K. Bauska, E.J. Brook, S.A. Marcott, D. Baggenstos, S. Shackleton, J.P. Severinghaus, V.V. Petrenko. 2018. Controls on millennial-scale atmospheric CO2 variability during the last glacial period. Geophysical Research Letters. . doi: 10.1029/2018GL077881","edition":null,"identifier":{"id":"10.1029/2018GL077881","type":"doi","url":"http://dx.doi.org/10.1029/2018GL077881"},"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2018,"reportNumber":null,"title":"Controls on millennial-scale atmospheric CO2 variability during the last glacial period","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["carbon cycle"],"site":[{"NOAASiteId":"56720","geo":{"geoType":"Feature","geometry":{"coordinates":["-77.75","161.75"],"type":"POINT"},"properties":{"easternmostLongitude":"161.75","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"-77.75","southernmostLatitude":"-77.75","westernmostLongitude":"161.75"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"35893","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>atmospheric gas"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/taylor/taylor2018d13co2.txt","linkText":"Taylor Glacier CO2, N2O, and d13CO2 Data","urlDescription":"NOAA Template File","variables":[{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>inorganic compound>carbon dioxide","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"},{"cvAdditionalInfo":"Field campaign","cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>notes"},{"cvAdditionalInfo":"Notes including potential outliers","cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Character","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>notes"},{"cvAdditionalInfo":"Transect location in meters","cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>notes"},{"cvAdditionalInfo":"Baggenstos et al. 2017","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"},{"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 million","cvWhat":"chemical composition>compound>inorganic compound>carbon dioxide"},{"cvAdditionalInfo":null,"cvDataType":"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>inorganic compound>nitrous oxide"}]}],"dataTableName":"Taylor2018d13CO2","dataTableNotes":null,"earliestYear":46441,"earliestYearBP":46441,"earliestYearCE":-44491,"mostRecentYear":10919,"mostRecentYearBP":10919,"mostRecentYearCE":-8969,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Taylor Glacier"}],"studyCode":null,"studyName":"Taylor Glacier, Antarctica 40,000 Year CO2, N2O, and d13CO2 Data","studyNotes":"Greenhouse gas (CO2, N2O) and carbon isotope (d13CO2) data from the Taylor Glacier ice core for 46,000 - 11,000 years before present","version":"1.0","xmlId":"22314"}