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| Titel |
TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica |
| VerfasserIn |
D. Buiron, J. Chappellaz, B. Stenni, M. Frezzotti, M. Baumgartner, E. Capron, A. Landais, B. Lemieux-Dudon, V. Masson-Delmotte, M. Montagnat, F. Parrenin, A. Schilt |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 7, no. 1 ; Nr. 7, no. 1 (2011-01-10), S.1-16 |
| Datensatznummer |
250004391
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| Publikation (Nr.) |
 copernicus.org/cp-7-1-2011.pdf |
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| Zusammenfassung |
| A new deep ice core drilling program, TALDICE, has been successfully handled
by a European team at Talos Dome, in the Ross Sea sector of East Antarctica,
down to 1620 m depth. Using stratigraphic markers and a new inverse method,
we produce the first official chronology of the ice core, called TALDICE-1.
We show that it notably improves an a priori chronology resulting from a
one-dimensional ice flow model. It is in agreement with a posteriori controls of the
resulting accumulation rate and thinning function along the core. An
absolute uncertainty of only 300 yr is obtained over the course of the last
deglaciation. This uncertainty remains lower than 600 yr over Marine Isotope
Stage 3, back to 50 kyr BP. The phasing of the TALDICE ice core climate
record with respect to the central East Antarctic plateau and Greenland
records can thus be determined with a precision allowing for a discussion of
the mechanisms at work at sub-millennial time scales. |
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