Vostok, Antarctica 350 Year Ice Core Deuterium Data and Temperature Ekaykin, A.A.; Kozachek, A.V.; Lipenkov, V.; Shibaev, Yu.A. Ekaykin, A.A. Kozachek, A.V. Lipenkov, V. Shibaev, Yu.A. 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 earth science/paleoclimate/ice core (Vostok>LATITUDE -78.47>LONGITUDE 106.8) 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. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Ekaykin, A.A. Investigator : Kozachek, A.V. Investigator : Lipenkov, V. Investigator : Shibaev, Yu.A. 2017-05-19 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/22532 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014temp.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014dd.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014temp.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014dd.txt English https://www.ncdc.noaa.gov/paleo/study/22532 https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014temp.txt https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/vostok2014dd.txt Ekaykin, A.A.; Kozachek, A.V.; Lipenkov, V.Ya.; Shibaev, Yu.A.2014Multiple climate shifts in the Southern Hemisphere over the past three centuries based on central Antarctic snow pits and core studiesAnnals of Glaciology5566259-26610.3189/201AoG66A189https://www.igsoc.org/annals/55/66/a66A189.html START YEAR: 1654 AD * END YEAR: 2010 AD 106.8 -78.47 106.8 -78.47