TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica

Buiron, D.; Chappellaz, J.; Stenni, B.; Frezzotti, M.; Baumgartner, Matthias; Capron, E.; Landais, A.; Lemieux-Dudon, B.; Masson-Delmotte, V.; Montagnat, M.; Parrenin, F.; Schilt, Adrian (2011). TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica. Climate of the past, 7(1), pp. 1-16. Göttingen: Copernicus Publications 10.5194/cp-7-1-2011

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Climate and Environmental Physics

UniBE Contributor:

Baumgartner, Matthias and Schilt, Adrian

ISSN:

1814-9324

Publisher:

Copernicus Publications

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:27

Last Modified:

08 Jun 2016 10:27

Publisher DOI:

10.5194/cp-7-1-2011

Web of Science ID:

000288992700001

BORIS DOI:

10.7892/boris.10123

URI:

https://boris.unibe.ch/id/eprint/10123 (FactScience: 215965)

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