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| Atmospheric methane and nitrous oxide of the late Pleistocene from Antarctic ice cores |
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| Author(s): Spahni R, Chappellaz J, Stocker TF, Loulergue L, Hausammann G, Kawamura K, Fluckiger J, Schwander J, Raynaud D, Masson-Delmotte V, Jouzel J |
| Source: SCIENCE Volume: 310 Issue: 5752 Pages: 1317-1321 Published: NOV 25 2005 |
| Times Cited: 69 References: 34 |
| Abstract: The European Project for Ice Coring in Antarctica Dome C ice core enables us to extend existing records of atmospheric methane (CH4) and nitrous oxide (N2O) back to 650,000 years before the present. A combined record of CH4 measured along the Dome C and the Vostok ice cores demonstrates, within the resolution of our measurements, that preindustrial concentrations over Antarctica have not exceeded 773 +/- 15 ppbv (parts per billion by volume) during the past 650,000 years. Before 420,000 years ago, when interglacials were cooler, maximum CH4 concentrations were only about 600 ppbv, similar to lower Holocene values. In contrast, the N2O record shows maximum concentrations of 278 +/- 7 ppbv, slightly higher than early Holocene values. |
| Document Type: Article |
| Language: English |
| Reprint Address: Stocker, TF (reprint author), Univ Bern, Inst Phys, Sidlerstr 5, CH-3012 Bern, Switzerland |
Addresses:
1. Univ Bern, Inst Phys, CH-3012 Bern, Switzerland
2. UJF, CNRS, Lab Glaciol & Geophys Environm, F-38402 St Martin Dheres, France
3. Ctr Etud Saclay, Inst Pierre Simon Laplace, Lab Sci Climat & Environm, CEA CNRS 1572, F-91191 Gif Sur Yvette, France |
| Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA |
| Subject Category: Multidisciplinary Sciences |
| IDS Number: 988KN |
| ISSN: 0036-8075 |
| DOI: 10.1126/science.1120132 |
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| | | | | | | | | Record from Web of Science® | | | | | | | | | |