{"NOAAStudyId":"12882","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":"2012-03-25","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-12882.xml","doi":null,"earliestYearBP":801425,"earliestYearCE":-799475,"entryId":"noaa-icecore-12882","funding":[{"fundingAgency":"European Commission","fundingGrant":"EPICA"}],"investigators":"Lambert, F.; Bigler, M.; Steffensen, J.P.; Hutterli, M.A.; Fischer, H.","mostRecentYearBP":375,"mostRecentYearCE":1575,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/12882","originalSource":null,"publication":[{"abstract":"Ice core data from Antarctica provide detailed insights into \r\nthe characteristics of past climate, atmospheric circulation, \r\nas well as changes in the aerosol load of the atmosphere. \r\nWe present high-resolution records of soluble calcium (Ca2+), \r\nnon-sea-salt soluble calcium (nssCa2+), and particulate mineral \r\ndust aerosol from the East Antarctic Plateau at a depth resolution \r\nof 1 cm, spanning the past 800 000 years. Despite the fact that \r\nall three parameters are largely dust-derived, the ratio of \r\nnssCa2+ to particulate dust is dependent on the particulate \r\ndust concentration itself. We used principal component analysis \r\nto extract the joint climatic signal and produce a common \r\nhigh-resolution record of dust flux. This new record is used \r\nto identify Antarctic warming events during the past eight \r\nglacial periods.  The phasing of dust flux and CO2 changes \r\nduring glacial-interglacial transitions reveals that iron \r\nfertilization of the Southern Ocean during the past nine \r\nglacial terminations was not the dominant factor in the \r\ndeglacial rise of CO2 concentrations.  Rapid changes in dust \r\nflux during glacial terminations and Antarctic warming events \r\npoint to a rapid response of the southern westerly wind belt \r\nin the region of southern South American dust sources on \r\nchanging climate conditions.  The clear lead of these dust \r\nchanges on temperature rise suggests that an atmospheric \r\nreorganization occurred in the Southern Hemisphere before \r\nthe Southern Ocean warmed significantly.\r\n","author":null,"citation":"Lambert, F., M. Bigler, J.P. Steffensen, M. Hutterli, \r\nand H. Fischer. 2012. \r\nCentennial mineral dust variability in high-resolution \r\nice core data from Dome C, Antarctica. \r\nClimate of the Past, Vol. 8, pp. 609-623. \r\ndoi:10.5194/cp-8-609-2012. \r\nhttp://www.clim-past.net/8/609/2012/cp-8-609-2012.html","edition":null,"identifier":{"id":"10.5194/cp-8-609-2012","type":"doi","url":"http://dx.doi.org/10.5194/cp-8-609-2012"},"issue":null,"journal":"Climate of the Past","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"Centennial mineral dust variability in high-resolution ice core data from Dome C, Antarctica","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["westerlies"],"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":"21215","coreLengthMeters":3189,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>mineralogy"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc2012dust.txt","linkText":"edc2012dust.txt","urlDescription":"Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar kiloyear 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":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"milligram per square meter per year","cvWhat":"geological material>bulk geological material>dust"},{"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"}]},{"NOAAKeywords":["earth science>paleoclimate>ice core>mineralogy"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc2012dust.xls","linkText":"edc2012dust.xls","urlDescription":"Data","variables":[]}],"dataTableName":"EDC2012dust","dataTableNotes":null,"earliestYear":801425,"earliestYearBP":801425,"earliestYearCE":-799475,"mostRecentYear":375,"mostRecentYearBP":375,"mostRecentYearCE":1575,"species":[],"timeUnit":"cal yr BP"}],"siteName":"EPICA Dome C"}],"studyCode":null,"studyName":"EPICA Dome C Ice Core 800KYr Dust Flux Data at 25yr Resolution","studyNotes":"Dust record from the EPICA (European Project for Ice Coring in Antarctica) \nDome C ice core covering 0 to 800 kyr BP.  Measurements of dust mass concentration \nand Fine Particle Percentage using both laser and Coulter Counter methods.","version":"1.0","xmlId":"10945"}