noaa-icecore-6081 EPICA Dome C - Timescales EDC3 Parrenin, F.; Barnola, J.M.; Beer, J.; Blunier, T.; Castellano, E.; Chappellaz, J.A.; Dreyfus, G.; Fischer, H.; Fujita, S.; Jouzel, J.; Kawamura, K.; Lemieux-Dudon, B.; Loulergue, L.; Masson-Delmotte, V.; Narcisi, B.; Petit, J.-R.; Raisbeck, G.M.; Raynaud, D.; Ruth, U.; Schwander, J.; Severi, M.; Spahni, R.; Svensson, A.M.; Udisti, R.; Waelbroeck, C.; Wolff, E.W. EPICA Dome C - Timescales EDC3 2007-09-01 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/6081 Investigator F. Parrenin Investigator J.M. Barnola Investigator J. Beer Investigator T. Blunier Investigator E. Castellano Investigator J.A. Chappellaz Investigator G. Dreyfus Investigator H. Fischer Investigator S. Fujita Investigator J. Jouzel Investigator K. Kawamura Investigator B. Lemieux-Dudon Investigator L. Loulergue Investigator V. Masson-Delmotte Investigator B. Narcisi Investigator J.-R. Petit Investigator G.M. Raisbeck Investigator D. Raynaud Investigator U. Ruth Investigator J. Schwander Investigator M. Severi Investigator R. Spahni Investigator A.M. Svensson Investigator R. Udisti Investigator C. Waelbroeck Investigator E.W. Wolff earth science paleoclimate ice cores ice age,null,null,calendar year before present,null,ice cores,null,null,N,null earth science paleoclimate ice cores sample identification,null,null,null,null,ice cores,null,null,C,null earth science paleoclimate ice cores depth,null,null,meter,null,ice cores,null,null,N,null earth science paleoclimate ice cores gas age,null,null,calendar year before present,null,ice cores,null,null,N,null earth science paleoclimate ice core age control geoscientificInformation -799662 AD 2000 AD 801612 cal yr BP -50 cal yr BP Complete -75.1 -75.1 123.4 123.4 3240 3240 Continent Antarctica EPICA Dome C>LATITUDE -75.1>LONGITUDE 123.4 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 Parrenin, F., J.-M. Barnola, J. Beer, T. Blunier, E. Castellano, J. Chappellaz, G. Dreyfus, H. Fischer, S. Fujita, J. Jouzel, K. Kawamura, B. Lemieux-Dudon, L. Loulergue, V. Masson-Delmotte, B. Narcisi, J.-R. Petit, G. Raisbeck, D. Raynaud, U. Ruth, J. Schwander, M. Severi, R. Spahni, J. P. Steffensen, A. Svensson, R. Udisti, C. Waelbroeck, and E. Wolff 2007 Climate of the Past 3 485-497

The EPICA (European Project for Ice Coring in Antarctica) Dome C drilling in East Antarctica has now been completed to a depth of 3260 m, at only a few meters above bedrock. Here we present the new EDC3 chronology, which is based on the use of 1) a snow accumulation and mechanical flow model, and 2) a set of independent age markers along the core. These are obtained by pattern matching of recorded parameters to either absolutely dated paleoclimatic records, or to insolation variations. We show that this new time scale is in excellent agreement with the Dome Fuji and Vostok ice core time scales back to 100 kyr within 1 kyr. Discrepancies larger than 3 kyr arise during MIS 5.4, 5.5 and 6, which points to anomalies in either snow accumulation or mechanical flow during these time periods. We estimate that EDC3 gives accurate event durations within 20% (2 sigma) back to MIS11 and accurate absolute ages with a maximum uncertainty of 6 kyr back to 800 kyr. STUDY NOTES: Timescale EDC3 for the EPICA Dome C ice core, both for the ice matrix and gas bubbles.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc1-edc2-timescale.txt GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc3-timescale.txt USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11