{"NOAAStudyId":"18316","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":"2015-04-27","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-18316.xml","doi":null,"earliestYearBP":1217,"earliestYearCE":733,"entryId":"noaa-icecore-18316","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"0839078"}],"investigators":"Bauska, T.K.; Joos, F.; Mix, A.C.; Roth, R.; Ahn, J.; Brook, E.J.","mostRecentYearBP":11,"mostRecentYearCE":1939,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/18316","originalSource":null,"publication":[{"abstract":null,"author":null,"citation":"Ahn, J., E.J. Brook, L. Mitchell, J. Rosen, J.R. McConnell, \r\nK. Taylor, D. Etheridge, and M. Rubino. 2012. \r\nAtmospheric CO2 over the last 1000 years: A high-resolution \r\nrecord from the West Antarctic Ice Sheet (WAIS) Divide ice core. \r\nGlobal Biogeochem. Cycles, 26, 2, GB2027, doi:10.1029/2011GB004247","edition":null,"identifier":{"id":"10.1029/2011GB004247","type":"doi","url":"http://dx.doi.org/10.1029/2011GB004247"},"issue":null,"journal":"Global Biogeochemical Cycles","pages":null,"pubRank":"2","pubYear":2012,"reportNumber":null,"title":"Atmospheric CO2 over the last 1000 years: A high-resolution  record from the West Antarctic Ice Sheet (WAIS) Divide ice core. ","type":"publication","volume":null},{"abstract":"The stability of terrestrial carbon reservoirs is thought to be closely linked to variations in climate, but the magnitude of carbon-climate feedbacks has proved difficult to constrain for both modern and millennial timescales. Reconstructions of atmospheric CO2 concentrations for the past thousand years have shown fluctuations on multidecadal to centennial timescales, but the causes of these fluctuations are unclear. Here we report high-resolution carbon isotope measurements of CO2 trapped within the ice of the West Antarctic Ice Sheet Divide ice core for the past 1,000 years. We use a deconvolution approach to show that changes in terrestrial organic carbon stores best explain the observed multidecadal variations in the d13C of CO2 and in CO2 concentrations from 755 to 1850 CE. If significant long-term carbon emissions came from pre-industrial anthropogenic land-use changes over this interval, the emissions must have been offset by a natural terrestrial sink for 13C-depleted carbon, such as peatlands. We find that on multidecadal timescales, carbon cycle changes seem to vary with reconstructed regional climate changes. We conclude that climate variability could be an important control of fluctuations in land carbon storage on these timescales.","author":{"name":"Thomas K. Bauska, Fortunat Joos, Alan C. Mix, Raphael Roth, Jinho Ahn, and Edward J. Brook"},"citation":"Thomas K. Bauska, Fortunat Joos, Alan C. Mix, Raphael Roth, Jinho Ahn, and Edward J. Brook. 2015. Links between atmospheric carbon dioxide, the land carbon reservoir and climate over the past millennium. Nature Geoscience, 8(5), 383-387. doi: 10.1038/NGEO2422","edition":null,"identifier":{"id":"10.1038/NGEO2422","type":"doi","url":"http://dx.doi.org/10.1038/NGEO2422"},"issue":"5","journal":"Nature Geoscience","pages":"383-387","pubRank":"1","pubYear":2015,"reportNumber":null,"title":"Links between atmospheric carbon dioxide, the land carbon reservoir and climate over the past millennium","type":"publication","volume":"8"}],"reconstruction":"N","scienceKeywords":["carbon cycle"],"site":[{"NOAASiteId":"22909","geo":{"geoType":"Feature","geometry":{"coordinates":["-79.47","-112.13"],"type":"POINT"},"properties":{"easternmostLongitude":"-112.13","maxElevationMeters":"1759","minElevationMeters":"1759","northernmostLatitude":"-79.47","southernmostLatitude":"-79.47","westernmostLongitude":"-112.13"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"28694","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>carbon 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