www.clim-past.net/3/485/2007/ © Author(s) 2007. This work is licensed under a Creative Commons License. Climate of the Past The EDC3 chronology for the EPICA Dome C ice core

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 co...

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Bibliographic Details
Main Authors: F. Parrenin, J. -m. Barnola, J. Beer, T. Blunier, E. Castellano, 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. Schw, M. Severi, R. Spahni, J. P. Steffensen, A. Svensson, R. Udisti, C. Waelbroeck, E. Wolff
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2007
Subjects:
Dome Fuji
East Antarctica
Antarc*
Antarctica
EPICA
ice core
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.5388
http://hal.archives-ouvertes.fr/docs/00/33/07/61/PDF/cp-3-485-2007.pdf
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Summary: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

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