An abrupt change of Antarctic moisture origin at the end of Termination II
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 transit...
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ftnerc:oai:nora.nerc.ac.uk:10575 2023-05-15T13:45:10+02:00 An abrupt change of Antarctic moisture origin at the end of Termination II 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. Rothlisberger, R. Selmo, E. Waelbroeck, C. 2010 http://nora.nerc.ac.uk/id/eprint/10575/ unknown National Academy of Sciences 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 orcid:0000-0001-8887-7314 Minster, B.; Mudelsee, M.; Pol, K.; Rothlisberger, R.; Selmo, E.; Waelbroeck, C. 2010 An abrupt change of Antarctic moisture origin at the end of Termination II. Proceedings of the National Academy of Sciences, 107 (27). 12091-12094. https://doi.org/10.1073/pnas.0914536107 <https://doi.org/10.1073/pnas.0914536107> Meteorology and Climatology Glaciology Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.1073/pnas.0914536107 2023-02-04T19:26:49Z 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core North Atlantic Natural Environment Research Council: NERC Open Research Archive Antarctic Indian Proceedings of the National Academy of Sciences 107 27 12091 12094 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Meteorology and Climatology Glaciology |
spellingShingle |
Meteorology and Climatology Glaciology 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. Rothlisberger, R. Selmo, E. Waelbroeck, C. An abrupt change of Antarctic moisture origin at the end of Termination II |
topic_facet |
Meteorology and Climatology Glaciology |
description |
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. |
format |
Article in Journal/Newspaper |
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. Rothlisberger, R. Selmo, E. Waelbroeck, C. |
author_facet |
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. Rothlisberger, R. Selmo, E. Waelbroeck, C. |
author_sort |
Masson-Delmotte, V. |
title |
An abrupt change of Antarctic moisture origin at the end of Termination II |
title_short |
An abrupt change of Antarctic moisture origin at the end of Termination II |
title_full |
An abrupt change of Antarctic moisture origin at the end of Termination II |
title_fullStr |
An abrupt change of Antarctic moisture origin at the end of Termination II |
title_full_unstemmed |
An abrupt change of Antarctic moisture origin at the end of Termination II |
title_sort |
abrupt change of antarctic moisture origin at the end of termination ii |
publisher |
National Academy of Sciences |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/10575/ |
geographic |
Antarctic Indian |
geographic_facet |
Antarctic Indian |
genre |
Antarc* Antarctic Antarctica ice core North Atlantic |
genre_facet |
Antarc* Antarctic Antarctica ice core North Atlantic |
op_relation |
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 orcid:0000-0001-8887-7314 Minster, B.; Mudelsee, M.; Pol, K.; Rothlisberger, R.; Selmo, E.; Waelbroeck, C. 2010 An abrupt change of Antarctic moisture origin at the end of Termination II. Proceedings of the National Academy of Sciences, 107 (27). 12091-12094. https://doi.org/10.1073/pnas.0914536107 <https://doi.org/10.1073/pnas.0914536107> |
op_doi |
https://doi.org/10.1073/pnas.0914536107 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
107 |
container_issue |
27 |
container_start_page |
12091 |
op_container_end_page |
12094 |
_version_ |
1766214196078313472 |