{"NOAAStudyId":"21691","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":"2017-03-19","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-21691.xml","doi":null,"earliestYearBP":23988,"earliestYearCE":-22038,"entryId":"noaa-icecore-21691","funding":[{"fundingAgency":"Australian Research Council  ","fundingGrant":null}],"investigators":"Fogwill, C.; Turney, C.S.M.; Golledge, N.R.; Etheridge, D.M.; Rubino, M.; Thornton, D.P.; Baker, A.; Woodward, J.; Winter, K.; van Ommen, T.D.; Moy, A.D.; Curran, M.A.J.; Davies, S.M.; Weber, M.E.; Bird, M.I.; Munksgaard, N.C.; Menviel, L.; Rootes, C.M.; Ellis, B.; Millman, H.; Vohra, J.; Rivera, A.; Cooper, A.","mostRecentYearBP":11174,"mostRecentYearCE":-9224,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/21691","originalSource":null,"publication":[{"abstract":"Reconstructing the dynamic response of the Antarctic ice sheets to warming during the Last Glacial Termination (LGT; 18,000-11,650 yrs ago) allows us to disentangle ice-climate feedbacks that are key to improving future projections. Whilst the sequence of events during this period is reasonably well-known, relatively poor chronological control has precluded precise alignment of ice, atmospheric and marine records, making it difficult to assess relationships between Antarctic ice-sheet (AIS) dynamics, climate change and sea level. Here we present results from a highly-resolved 'horizontal ice core' from the Weddell Sea Embayment, which records millennial-scale AIS dynamics across this extensive region. Counterintuitively, we find AIS mass-loss across the full duration of the Antarctic Cold Reversal (ACR; 14,600-12,700 yrs ago), with stabilisation during the subsequent millennia of atmospheric warming. Earth-system and ice-sheet modelling suggests these contrasting trends were likely Antarctic-wide, sustained by feedbacks amplified by the delivery of Circumpolar Deep Water onto the continental shelf. Given the anti-phase relationship between inter-hemispheric climate trends across the LGT our findings demonstrate that Southern Ocean-AIS feedbacks were controlled by global atmospheric teleconnections. With increasing stratification of the Southern Ocean and intensification of mid-latitude westerly winds today, such teleconnections could amplify AIS mass loss and accelerate global sea-level rise.","author":{"name":"C.J. Fogwill, C.S.M. Turney, N.R. Golledge, D.M. Etheridge, M. Rubino, D.P. Thornton, A. Baker, J. Woodward, K. Winter, T.D. van Ommen, A.D. Moy, M.A.J. Curran, S.M. Davies, M.E. Weber, M.I. Bird, N.C. Munksgaard, L. Menviel, C.M. Rootes, B. Ellis, H. Millman, J. Vohra, A. Rivera, A. Cooper"},"citation":"C.J. Fogwill, C.S.M. Turney, N.R. Golledge, D.M. Etheridge, M. Rubino, D.P. Thornton, A. Baker, J. Woodward, K. Winter, T.D. van Ommen, A.D. Moy, M.A.J. Curran, S.M. Davies, M.E. Weber, M.I. Bird, N.C. Munksgaard, L. Menviel, C.M. Rootes, B. Ellis, H. Millman, J. Vohra, A. Rivera, A. Cooper. 2017. Antarctic ice sheet discharge driven by atmosphere-ocean feedbacks at the Last Glacial Termination. Scientific Reports, 7, 39979. doi: 10.1038/srep39979","edition":"39979","identifier":{"id":"10.1038/srep39979","type":"doi","url":"http://dx.doi.org/10.1038/srep39979"},"issue":null,"journal":"Scientific Reports","pages":null,"pubRank":"1","pubYear":2017,"reportNumber":null,"title":"Antarctic ice sheet discharge driven by atmosphere-ocean feedbacks at the Last Glacial Termination","type":"publication","volume":"7"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"56641","geo":{"geoType":"Feature","geometry":{"coordinates":["-80.3","-81.35"],"type":"POINT"},"properties":{"easternmostLongitude":"-81.35","maxElevationMeters":"800","minElevationMeters":"800","northernmostLatitude":"-80.3","southernmostLatitude":"-80.3","westernmostLongitude":"-81.35"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"32685","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>hydrogen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/patriot/patriot2017dd.txt","linkText":"Patriot Hills Blue Ice Last Glacial Transition dD Data","urlDescription":"Formatted Text Data File","variables":[{"cvAdditionalInfo":"Distance along transect of blue ice","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"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 2H"}]}],"dataTableName":"Patriot2017dD","dataTableNotes":null,"earliestYear":23988,"earliestYearBP":23988,"earliestYearCE":-22038,"mostRecentYear":11174,"mostRecentYearBP":11174,"mostRecentYearCE":-9224,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Patriot Hills"}],"studyCode":null,"studyName":"Patriot Hills, West Antarctica Last Glacial Transition dD Data","studyNotes":"Ice core hydrogen isotope (dD) data from the Patriot Hills blue ice area, Antarctica, from the Last Glacial Transition (11,000 to 24,000 years before present). 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