Timing of atmospheric CO2 and Antarctic temperature changes across termination III

被引：125

作者：

Caillon, N ^{[1
]}

Severinghaus, JP

Jouzel, J

Barnola, JM

Kang, JC

Lipenkov, VY

机构：

[1] CEA Saclay, CNRS, Inst Pierre Simon Laplace, Lab Climat & Environm, F-91191 Gif Sur Yvette, France

[2] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA

[3] CNRS, Lab Glaciol & Geophys Environm, F-38402 St Martin Dheres, France

[4] Polar Res Inst China, Shanghai 200129, Peoples R China

[5] Arctic & Antarctic Res Inst, St Petersburg 199397, Russia

来源：

SCIENCE | 2003年 / 299卷 / 5613期

关键词：

D O I：

10.1126/science.1078758

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The analysis of air bubbles from ice cores has yielded a precise record of atmospheric greenhouse gas concentrations, but the timing of changes in these gases with respect to temperature is not accurately known because of uncertainty in the gas age-ice age difference. We have measured the isotopic composition of argon in air bubbles in the Vostok core during Termination III (similar to240,000 years before the present). This record most likely reflects the temperature and accumulation change, although the mechanism remains unclear. The sequence of events during Termination III suggests that the CO2 increase tagged Antarctic deglacial warming by 800 +/- 200 years and preceded the Northern Hemisphere deglaciation.

引用

收藏

页码：1728 / 1731

页数：4

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