{"NOAAStudyId":"22532","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":"2017-05-19","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-22532.xml","doi":null,"earliestYearBP":296,"earliestYearCE":1654,"entryId":"noaa-icecore-22532","funding":[],"investigators":"Ekaykin, A.A.; Kozachek, A.V.; Lipenkov, V.; Shibaev, Yu.A.","mostRecentYearBP":-60,"mostRecentYearCE":2010,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/22532","originalSource":null,"publication":[{"abstract":"Based on the results of geochemical and glaciological investigations in snow pits and shallow cores, regional stack series of air temperature in central Antarctica (in the southern part of Vostok Subglacial Lake) were obtained, covering the last 350 years. It is shown that this parameter varied quasi-periodically with a wavelength of 30-50 years. The correlation of the newly obtained record with the circulation indices of the Southern Hemisphere (SH) shows that the central Antarctic climate is mainly governed by the type of circulation in the SH: under conditions of zonal circulation, negative anomalies of temperature and precipitation rate are observed, whereas the sign of the anomalies is positive during meridional circulation. In the 1970s the sign of the relationship between many climatic parameters changed, which is likely related to the rearrangement of the climatic system of the SH. The data suggest that during the past 350 years such events have taken place at least five times. The stable water isotope content of the central Antarctic snow is governed by the summer temperature rather than the mean annual temperature, which is interpreted as the influence of 'post-depositional' effects. ","author":{"name":"Ekaykin, A.A.; Kozachek, A.V.; Lipenkov, V.Ya.; Shibaev, Yu.A."},"citation":"Ekaykin, A.A.; Kozachek, A.V.; Lipenkov, V.Ya.; Shibaev, Yu.A. 2014. Multiple climate shifts in the Southern Hemisphere over the past three centuries based on central Antarctic snow pits and core studies. Annals of Glaciology, 55(66), 259-266. doi: 10.3189/201AoG66A189","edition":null,"identifier":{"id":"10.3189/201AoG66A189","type":"doi","url":"http://dx.doi.org/10.3189/201AoG66A189"},"issue":"66","journal":"Annals of Glaciology","pages":"259-266","pubRank":"1","pubYear":2014,"reportNumber":null,"title":"Multiple climate shifts in the Southern Hemisphere over the past three centuries based on central Antarctic snow pits and core studies","type":"publication","volume":"55"}],"reconstruction":"Y","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":"33625","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>hydrogen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014dd.txt","linkText":"Vostok 350 Year dD Data","urlDescription":"Formatted Text Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age>ice age"},{"cvAdditionalInfo":null,"cvDataType":"ICE CORES","cvDetail":null,"cvError":"68% confidence interval margin of error","cvFormat":"Numeric","cvMaterial":"hydrologic material>bulk ice","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 2H"}]}],"dataTableName":"Vostok2014dD","dataTableNotes":null,"earliestYear":1654,"earliestYearBP":296,"earliestYearCE":1654,"mostRecentYear":2010,"mostRecentYearBP":-60,"mostRecentYearCE":2010,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"33626","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>ice core>reconstruction"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014temp.txt","linkText":"Vostok 350 Year Temperature Reconstruction","urlDescription":"Formatted Text Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|ICE CORES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"Reference period: 1958-2010: snow isotope content Regression with the air temperature measured at Vostok station in 1958-2010; Mean annual snow accumulation rate (0.021 m ice equivalent); mean annual site temperature (-56C)","cvDataType":"CLIMATE RECONSTRUCTIONS|ICE CORES","cvDetail":"anomalized","cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>isotope ratio>delta 2H","cvMethod":"regression analysis","cvSeasonality":"annual","cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>air temperature"}]}],"dataTableName":"Vostok2014temp","dataTableNotes":null,"earliestYear":1730,"earliestYearBP":220,"earliestYearCE":1730,"mostRecentYear":2010,"mostRecentYearBP":-60,"mostRecentYearCE":2010,"species":[],"timeUnit":"AD"}],"siteName":"Vostok"}],"studyCode":null,"studyName":"Vostok, Antarctica 350 Year Ice Core Deuterium Data and Temperature","studyNotes":"Ice core deuterium (dD) data and temperature reconstruction from snow pits and shallow cores at Vostok, Antarctica. ","version":"1.0","xmlId":"20687"}