{"NOAAStudyId":"12947","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":"2012-05-24","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-12947.xml","doi":null,"earliestYearBP":145000,"earliestYearCE":-143050,"entryId":"noaa-icecore-12947","funding":[],"investigators":"Parrenin, F.; Petit, J.-R.; Masson-Delmotte, V.; Basile, I.; Jouzel, J.; Lipenkov, V.; Rasmussen, S.O.; Schwander, J.; Severi, M.; Udisti, R.; Veres, D.; Vinther, B.M.; Wolff, E.W.","mostRecentYearBP":0,"mostRecentYearCE":1950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/12947","originalSource":null,"publication":[{"abstract":"This study aims at refining the synchronisation between the EPICA \r\nDome C (EDC) and Vostok ice cores in the time interval 0-145 kyr BP \r\nby using the volcanic signatures. 111 common volcanic events were \r\nidentified by using continuous electrical conductivity (ECM), \r\ndi-electrical profiling (DEP) and sulfate measurements while \r\ntrying to minimize the distortion of the glaciological chronologies. \r\nThis is an update and a continuation of previous works performed \r\nover the 0-45 kyr interval which provided 56 tie points to the \r\nice core chronologies (Udisti et al., 2004). This synchronisation \r\nwill serve for the establishment of the next synchronised Antarctic \r\ndating. A change of slope in the EDC-depth/Vostok-depth diagram \r\nis probably related to a change of accumulation regime as well as \r\nto a change of ice thickness upstream of the Vostok lake, but we\r\ndid not invoke any significant temporal change of surface \r\naccumulation at EDC relative to Vostok. A significant phase \r\ndifference is detected between the EDC and Vostok isotopic records \r\nduring the 95-120 kyr interval, but not during Termination II. \r\nThree possible candidates for the Toba volcanic super-eruption \r\n~73 kyr ago are suggested in the Vostok and EDC volcanic records. \r\nHowever the ECM, DEP and sulfate fingerprints for these three \r\nevents are not significantly larger than many others in the records.\r\n","author":null,"citation":"Parrenin, F., J.-R. Petit, V. Masson-Delmotte, I. Basile-Doelsch, \r\nJ. Jouzel, V. Lipenkov, S. Rasmussen, J. Schwander, M. Severi, \r\nR. Udisti, D. Veres, B. Vinther, and E. Wolff. 2011. \r\nVolcanic synchronisation between the EPICA Dome C \r\nand Vostok ice cores (Antarctica) 0-145 kyr BP. \r\nClim. Past Discuss., 7, 4105-4147.","edition":null,"identifier":null,"issue":null,"journal":"Climate of the Past Discussions","pages":null,"pubRank":"1","pubYear":2011,"reportNumber":null,"title":"Volcanic synchronisation between the EPICA Dome C  and Vostok ice cores (Antarctica) 0-145 kyr BP","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"19976","geo":{"geoType":"Feature","geometry":{"coordinates":["-78.47","106.8"],"type":"POINT"},"properties":{"easternmostLongitude":"106.8","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"-78.47","southernmostLatitude":"-78.47","westernmostLongitude":"106.8"}},"locationName":"Continent>Antarctica","mappable":"Y","paleoData":[{"NOAADataTableId":"22416","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2011ecm.txt","linkText":"vostok2011ecm.txt","urlDescription":"Data","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":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":"direct current electrical conductivity measurement","cvSeasonality":null,"cvShortName":null,"cvUnit":"relative unit","cvWhat":"electrical property>electrical conductivity"}]},{"NOAAKeywords":["earth science>paleoclimate>ice core>physical properties"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2011ecm.xlsx","linkText":"vostok2011ecm.xlsx","urlDescription":"Data","variables":[]}],"dataTableName":"Vostok2011ECM","dataTableNotes":null,"earliestYear":145000,"earliestYearBP":145000,"earliestYearCE":-143050,"mostRecentYear":0,"mostRecentYearBP":0,"mostRecentYearCE":1950,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Vostok"}],"studyCode":null,"studyName":"Vostok Ice Core Electrical Conductivity Measurements (ECM)","studyNotes":"Electrical Conductivity Measurements (ECM) from two ice cores \ncollected at Vostok, Antarctica. Data from the shallow VK-BH7 \ncore are presented to 240m depth, and data from the deep VK-5G \ncore from 200m to 2000m depth, both at 1 cm. resolution. \nRaw data collected every millimeter, averaged every 5 centimeters, \nand resampled every centimeter. ","version":"1.0","xmlId":"10989"}