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


Contact
Peter.Koehler [ at ] awi.de

Abstract

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.



Item Type
Article
Authors
Divisions
Programs
Publication Status
Published
Eprint ID
32547
DOI 10.1126/science.1226368

Cite as
Parrenin, F. , Masson-Delmotte, V. , Köhler, P. , Raynaud, D. , Paillard, D. , Schwander, J. , Barbante, C. , Landais, A. , Wegner, A. and Jouzel, J. (2013): Synchronous Change of Atmospheric CO2 and Antarctic Temperature During the Last Deglacial Warming , Science, 339 (6123), pp. 1060-1063 . doi: 10.1126/science.1226368


Download
[thumbnail of parrenin2013s_accepted_all.pdf]
Preview
PDF
parrenin2013s_accepted_all.pdf

Download (3MB) | Preview
Cite this document as:

Share
Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email


Citation

Research Platforms
N/A

Campaigns
N/A


Actions
Edit Item Edit Item