Synchronous Change of Atmospheric CO2 and Antarctic Temperature During the Last Deglacial Warming

被引：232

作者：

Parrenin, F. ^{[1
]}

Masson-Delmotte, V. ^{[2
]}

Koehler, P. ^{[3
]}

Raynaud, D. ^{[1
]}

Paillard, D. ^{[2
]}

Schwander, J. ^{[4
]}

Barbante, C. ^{[5
,6
]}

Landais, A. ^{[2
]}

Wegner, A. ^{[3
]}

Jouzel, J. ^{[2
]}

机构：

[1] Lab Glaciol & Geophys Environm CNRS UJF, Grenoble, France

[2] Lab Sci Climat & Environm CEA CNRS UVSQ IPSL, Gif Sur Yvette, France

[3] Alfred Wegener Inst Polar & Marine Res, Bremerhaven, Germany

[4] Univ Bern, Inst Phys, Bern, Switzerland

[5] Univ Venice, Dept Environm Sci, I-30123 Venice, Italy

[6] Univ Venice, Inst Dynam Environm Proc CNR, I-30123 Venice, Italy

来源：

SCIENCE | 2013年 / 339卷 / 6123期

关键词：

ABRUPT CLIMATE-CHANGE; EPICA DOME-C; POLAR ICE; FIRN; AIR; CONSTRAINTS; DELTA-N-15; DIFFERENCE; GREENLAND; CORES;

D O I：

10.1126/science.1226368

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：

Understanding the role of atmospheric CO2 during past climate changes requires clear knowledge of how it varies in time relative to temperature. Antarctic ice cores preserve highly resolved records of atmospheric CO2 and Antarctic temperature for the past 800,000 years. Here we propose a revised relative age scale for the concentration of atmospheric CO2 and Antarctic temperature for the last deglacial warming, using data from five Antarctic ice cores. We infer the phasing between CO2 concentration and Antarctic temperature at four times when their trends change abruptly. We find no significant asynchrony between them, indicating that Antarctic temperature did not begin to rise hundreds of years before the concentration of atmospheric CO2, as has been suggested by earlier studies.

引用

页码：1060 / 1063

页数：4

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