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Stable Carbon Cycle-Climate Relationship During the Late Pleistocene


Antarctica.  NASA/Goddard Space Flight Center, Scientific Visualization Studio. Stable Carbon Cycle-Climate Relationship During the Late Pleistocene
Science
Vol. 310, Issue 5752, pp. 1313-1317, 25 November 2005.

Urs Siegenthaler1, Thomas F. Stocker1, Eric Monnin1, Dieter Lüthi1, Jakob Schwander1, Bernhard Stauffer1, Dominique Raynaud2, Jean-Marc Barnola2, Hubertus Fischer3, Valérie Masson-Delmotte4, Jean Jouzel4.

1 Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland.
2 Laboratoire de Glaciologie et de Géophysique de l'Environnement (CNRS), 54 Rue Molières, 38402 St. Martin d'Hères Cedex, France.
3 Alfred Wegener Institute for Polar and Marine Research (AWI), Columbusstrasse, D-27568 Bremerhaven, Germany.
4 Institut Pierre Simon Laplace/ Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS 1572, CE Saclay, Orme des Merisiers, 91191 Gif-sur-Yvette, France.
ABSTRACT:
A record of atmospheric carbon dioxide (CO2) concentrations measured on the EPICA (European Project for Ice Coring in Antarctica) Dome Concordia ice core extends the Vostok CO2 record back to 650,000 years before the present (yr B.P.). Before 430,000 yr B.P., partial pressure of atmospheric CO2 lies within the range of 260 and 180 parts per million by volume. This range is almost 30% smaller than that of the last four glacial cycles; however, the apparent sensitivity between deuterium and CO2 remains stable throughout the six glacial cycles, suggesting that the relationship between CO2 and Antarctic climate remained rather constant over this interval.
Download data from the WDC Paleo archive:
EPICA Dome Concordia CO2 Data for 650 - 390 KYrBP, Text or Microsoft Excel format.

To read or view the full study, please visit the Science website.
It was published in Science, Vol. 310, Issue 5752, pp. 1313-1317, 25 November 2005.
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