TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica
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 TALDI...
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ftcopernicus:oai:publications.copernicus.org:cp8461 2023-05-15T13:36:36+02:00 TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica Buiron, D. Chappellaz, J. Stenni, B. Frezzotti, M. Baumgartner, M. Capron, E. Landais, A. Lemieux-Dudon, B. Masson-Delmotte, V. Montagnat, M. Parrenin, F. Schilt, A. 2018-09-27 application/pdf https://doi.org/10.5194/cp-7-1-2011 https://cp.copernicus.org/articles/7/1/2011/ eng eng doi:10.5194/cp-7-1-2011 https://cp.copernicus.org/articles/7/1/2011/ eISSN: 1814-9332 Text 2018 ftcopernicus https://doi.org/10.5194/cp-7-1-2011 2020-07-20T16:26:14Z 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. Text Antarc* Antarctic Antarctica East Antarctica Greenland ice core Ross Sea Copernicus Publications: E-Journals Antarctic East Antarctica Greenland Ross Sea Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Climate of the Past 7 1 1 16 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
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. |
format |
Text |
author |
Buiron, D. Chappellaz, J. Stenni, B. Frezzotti, M. Baumgartner, M. Capron, E. Landais, A. Lemieux-Dudon, B. Masson-Delmotte, V. Montagnat, M. Parrenin, F. Schilt, A. |
spellingShingle |
Buiron, D. Chappellaz, J. Stenni, B. Frezzotti, M. Baumgartner, M. Capron, E. Landais, A. Lemieux-Dudon, B. Masson-Delmotte, V. Montagnat, M. Parrenin, F. Schilt, A. TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica |
author_facet |
Buiron, D. Chappellaz, J. Stenni, B. Frezzotti, M. Baumgartner, M. Capron, E. Landais, A. Lemieux-Dudon, B. Masson-Delmotte, V. Montagnat, M. Parrenin, F. Schilt, A. |
author_sort |
Buiron, D. |
title |
TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica |
title_short |
TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica |
title_full |
TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica |
title_fullStr |
TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica |
title_full_unstemmed |
TALDICE-1 age scale of the Talos Dome deep ice core, East Antarctica |
title_sort |
taldice-1 age scale of the talos dome deep ice core, east antarctica |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-7-1-2011 https://cp.copernicus.org/articles/7/1/2011/ |
long_lat |
ENVELOPE(158.000,158.000,-73.000,-73.000) |
geographic |
Antarctic East Antarctica Greenland Ross Sea Talos Dome |
geographic_facet |
Antarctic East Antarctica Greenland Ross Sea Talos Dome |
genre |
Antarc* Antarctic Antarctica East Antarctica Greenland ice core Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Greenland ice core Ross Sea |
op_source |
eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-7-1-2011 https://cp.copernicus.org/articles/7/1/2011/ |
op_doi |
https://doi.org/10.5194/cp-7-1-2011 |
container_title |
Climate of the Past |
container_volume |
7 |
container_issue |
1 |
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1 |
op_container_end_page |
16 |
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1766081347990847488 |