Multiple climate shifts in the Southern Hemisphere over the past three centuries based on central Antarctic snow pits and core studies

noaa-icecore-22532 Vostok, Antarctica 350 Year Ice Core Deuterium Data and Temperature Ekaykin, A.A.; Kozachek, A.V.; Lipenkov, V.; Shibaev, Yu.A. Vostok, Antarctica 350 Year Ice Core Deuterium Data and Temperature 2017-05-19 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22532 Investigator A.A. Ekaykin Investigator A.V. Kozachek Investigator V. Lipenkov Investigator Yu.A. Shibaev earth science paleoclimate ice cores ice age,null,null,year Common Era,null,ice cores,null,null,N,null earth science paleoclimate ice cores delta 2H,bulk ice,68% confidence interval margin of error,per mil SMOW,null,ice cores,null,isotope ratio mass spectrometry,N,null earth science paleoclimate climate reconstructions|ice cores age,null,null,year Common Era,null,climate reconstructions|ice cores,null,null,N,null earth science paleoclimate climate reconstructions|ice cores air temperature,delta 2H,null,degree Celsius,annual,climate reconstructions|ice cores,anomalized,regression analysis,N,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) earth science paleoclimate ice core reconstruction earth science paleoclimate ice core hydrogen isotopes geoscientificInformation 1654 AD 2010 AD 296 cal yr BP -60 cal yr BP Complete -78.47 -78.47 106.8 106.8 Continent Antarctica Vostok>LATITUDE -78.47>LONGITUDE 106.8 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII 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 10.3189/201AoG66A189 https://www.igsoc.org/annals/55/66/a66A189.html

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. STUDY NOTES: Ice core deuterium (dD) data and temperature reconstruction from snow pits and shallow cores at Vostok, Antarctica.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014temp.txt Formatted Text Data File; Vostok 350 Year Temperature Reconstruction GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014dd.txt Formatted Text Data File; Vostok 350 Year dD Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11