Related Content
Search Google Scholar for:
More Information
Related Jobs from ScienceCareers
|
|
Science 14 March 2003:
Vol. 299. no. 5613, pp. 1728 - 1731
DOI: 10.1126/science.1078758
|
|
Reports
Timing of Atmospheric CO2 and Antarctic Temperature Changes Across Termination III
Nicolas Caillon,12*
Jeffrey P. Severinghaus,2
Jean Jouzel,1
Jean-Marc Barnola,3
Jiancheng Kang,4
Volodya Y. Lipenkov5
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 (~240,000 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 lagged Antarctic deglacial warming by
800 ± 200 years and preceded the Northern Hemisphere
deglaciation.
1 Institut Pierre Simon Laplace/Laboratoire des
Sciences du Climat et de l'Environnement, Commissariat à
l'Energie Atomique/CNRS, L'Orme des Merisiers, CEA Saclay,
91191, Gif sur Yvette, France.
2 Scripps Institution of
Oceanography, University of California San Diego, La Jolla, CA
92093-0244, USA.
3 Laboratoire de Glaciologie et
Géophysique de l'Environnement, CNRS, BP96, 38402, Saint Martin
d'Hères, France.
4 Polar Research Institute of China,
Pudong, Shanghai, 200129, People's Republic of China.
5 Arctic and Antarctic Research Institute, Beringa Street
38, 199397 St. Petersburg, Russia.
*
To whom correspondence should be addressed. E-mail:
ncaillon{at}ucsd.edu
Read the Full Text
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
- Stable Carbon Cycle-Climate Relationship During the Late Pleistocene.
- U. Siegenthaler, T. F. Stocker, E. Monnin, D. Luthi, J. Schwander, B. Stauffer, D. Raynaud, J.-M. Barnola, H. Fischer, V. Masson-Delmotte, et al. (2005)
Science
310, 1313-1317
| Abstract »
| Full Text »
| PDF »
- 340,000-Year Centennial-Scale Marine Record of Southern Hemisphere Climatic Oscillation.
- K. Pahnke, R. Zahn, H. Elderfield, and M. Schulz (2003)
Science
301, 948-952
| Abstract »
| Full Text »
| PDF »
|
|
