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| Content Provider | PubMed Central |
|---|---|
| Author | Masson-delmotte, V. Stenni, B. Blunier, T. Cattani, O. Chappellaz, J. Cheng, H. Dreyfus, G. Edwards, R. L. Falourd, S. Govin, A. Kawamura, K. Johnsen, S. J. Jouzel, J. Landais, A. Lemieux-dudon, B. Lourantou, A. Marshall, G. Minster, B. Mudelsee, M. Pol, K. Röthlisberger, R. Selmo, E. Waelbroeck, C. |
| Abstract | The deuterium excess of polar ice cores documents past changes in evaporation conditions and moisture origin. New data obtained from the European Project for Ice Coring in Antarctica Dome C East Antarctic ice core provide new insights on the sequence of events involved in Termination II, the transition between the penultimate glacial and interglacial periods. This termination is marked by a north–south seesaw behavior, with first a slow methane concentration rise associated with a strong Antarctic temperature warming and a slow deuterium excess rise. This first step is followed by an abrupt north Atlantic warming, an abrupt resumption of the East Asian summer monsoon, a sharp methane rise, and a CO2 overshoot, which coincide within dating uncertainties with the end of Antarctic optimum. Here, we show that this second phase is marked by a very sharp Dome C centennial deuterium excess rise, revealing abrupt reorganization of atmospheric circulation in the southern Indian Ocean sector. |
| Related Links | http://dx.doi.org/10.1073/pnas.0914536107 |
| Starting Page | 12091 |
| File Format | |
| ISSN | 10916490 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 27 |
| Volume Number | 107 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2010-07-06 |
| Access Restriction | Open |
| Rights Holder | National Academy of Sciences |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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