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

被引：64

作者：

Buiron, D. ^{[1
]}

Chappellaz, J. ^{[1
]}

Stenni, B. ^{[2
]}

Frezzotti, M. ^{[3
]}

Baumgartner, M. ^{[4
]}

Capron, E. ^{[5
]}

Landais, A. ^{[5
]}

Lemieux-Dudon, B. ^{[6
]}

Masson-Delmotte, V. ^{[5
]}

Montagnat, M. ^{[1
]}

Parrenin, F. ^{[1
]}

Schilt, A. ^{[7
]}

机构：

[1] Univ Grenoble 1, CNRS, Lab Glaciol & Geophys Environm, UMR 5183, F-38402 St Martin Dheres, France

[2] Univ Trieste, Dept Geosci, I-34127 Trieste, Italy

[3] CR Casaccia, ENEA, I-00123 Rome, Italy

[4] Univ Bern, Inst Phys, CH-3012 Bern, Switzerland

[5] CEA Saclay, Lab Sci Climat & Environm, IPSL CEA CNRS UVSQ UMR 1572, F-91191 Gif Sur Yvette, France

[6] INRIA Lab Jean Kuntzmann, F-38041 Grenoble 9, France

[7] Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland

来源：

CLIMATE OF THE PAST | 2011年 / 7卷 / 01期

关键词：

GREENLAND ICE; CLIMATE-CHANGE; ATMOSPHERIC METHANE; COLD REVERSAL; VICTORIA LAND; TAYLOR DOME; FLOW; SHEET; RECORDS; CH4;

D O I：

10.5194/cp-7-1-2011

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

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 1620m 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.

引用

页码：1 / 16

页数：16

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