# EPICA Dome C Ice Cores Deuterium Data # ----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # ----------------------------------------------------------------------- # NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! # # # NAME OF DATA SET: EPICA Dome C Ice Cores Deuterium Data # LAST UPDATE: 7/2004 (Original receipt by WDC Paleo) # # # CONTRIBUTOR: Jean Jouzel, Institut Pierre Simon Laplace/ # Laboratoire des Sciences du Climat et de l'Environnement, # UMR CEA-CNRS 1572, CE Saclay, Orme des Merisiers, # 91191Gif-Sur-Yvette, France. # # # IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004-038 # # # SUGGESTED DATA CITATION: Jouzel, J., et al. 2004. # EPICA Dome C Ice Cores Deuterium Data. # IGBP PAGES/World Data Center for Paleoclimatology # Data Contribution Series # 2004-038. # NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. # # # ORIGINAL REFERENCE: EPICA community members. 2004. # Eight glacial cycles from an Antarctic ice core. # Nature, Vol. 429, No 6992, pp.623-628, June 10, 2004. # doi:10.1038/nature02599. # # # ABSTRACT: # The Antarctic Vostok ice core provided compelling evidence of the nature of climate, # and of climate feedbacks, over the past 420,000 years. Marine records suggest that # the amplitude of climate variability was smaller before that time, but such records # are often poorly resolved. Moreover, it is not possible to infer the abundance of # greenhouse gases in the atmosphere from marine records. Here we report the recovery # of a deepice core from Dome C, Antarctica, that provides a climate record for the # past 740,000 years. For the four most recent glacial cycles, the data agree well # with the record from Vostok. The earlier period, between 740,000 and 430,000 years # ago, was characterized by less pronounced warmth in interglacial periods in Antarctica, # but a higher proportion of each cycle was spent in the warm mode. The transition # from glacial to interglacial conditions about 430,000 years ago (Termination V) # resembles the transition into the present interglacial period in terms of the # magnitude of change in temperatures and greenhouse gases, but there are significant # differences in the patterns of change. The interglacial stage following Termination # V was exceptionally long-28,000 years compared to, for example, the 12,000 years # recorded so far in the present interglacial period. Given the similarities between # this earlier warm period and today, our results may imply that without human # intervention, a climate similar to the present one would extend well into the future. # # # # GEOGRAPHIC REGION: Antarctica # PERIOD OF RECORD: 0 - 741 kyr BP # # # DESCRIPTION: # Deuterium data from EPICA Dome C ice cores, 6.6-3140.5 metres, # also presented as 3 kyr averages, 0-741 kyr. # # dD was determined on meltwater from 55 cm long sections. # The current dataset was derived using a "quick" mode # (each sample is measured twice instead of four times), # leading to a typical accuracy of 1.5‰, whereas we aim # for a final precision of 0.5‰ over the entire core. # The data here correspond to values averaged across seven # successive samples (depth scale) or averaged across # 3000 year intervals. Ages are given on timescale EDC2 # (EPICA Community Members, Eight glacial cycles from an # Antarctic ice core, Nature, 429 (6992), 623-628, 2004). # # Deuterium data from EPICA Dome C ice cores, 6.6-3140.5 metres. # # Column 1: Mean age # Column 2: dD, permill # # Age/mean deltaD 70,-391.20 139,-396.49 216,-398.19 295,-398.11 375,-400.07 460,-398.49 550,-397.83 640,-394.86 730,-400.54 822,-392.33 916,-398.81 1015,-396.96 1114,-396.37 1213,-393.51 1310,-394.30 1411,-395.44 1517,-396.86 1625,-397.49 1736,-397.54 1852,-396.51 1972,-397.89 2093,-396.96 2215,-396.97 2343,-402.41 2475,-397.01 2604,-395.10 2729,-393.74 2849,-393.96 2970,-396.33 3094,-395.95 3221,-399.50 3352,-397.56 3479,-394.81 3601,-393.87 3723,-393.87 3850,-396.24 3983,-394.44 4118,-395.27 4251,-395.20 4382,-395.00 4515,-396.20 4654,-396.91 4790,-395.27 4926,-396.07 5061,-394.10 5198,-395.53 5339,-399.23 5479,-396.94 5616,-395.29 5753,-393.10 5892,-397.51 6033,-396.41 6173,-397.56 6316,-397.54 6459,-400.19 6605,-398.03 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