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...
Published in: | Proceedings of the National Academy of Sciences |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
National Academy of Sciences
2010
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901456 http://www.ncbi.nlm.nih.gov/pubmed/20566887 https://doi.org/10.1073/pnas.0914536107 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:2901456 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:2901456 2023-05-15T13:40:19+02:00 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. Röthlisberger, R. Selmo, E. Waelbroeck, C. 2010-07-06 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901456 http://www.ncbi.nlm.nih.gov/pubmed/20566887 https://doi.org/10.1073/pnas.0914536107 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901456 http://www.ncbi.nlm.nih.gov/pubmed/20566887 http://dx.doi.org/10.1073/pnas.0914536107 Physical Sciences Text 2010 ftpubmed https://doi.org/10.1073/pnas.0914536107 2013-09-03T02:27:23Z 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. Text Antarc* Antarctic Antarctica ice core North Atlantic PubMed Central (PMC) Antarctic Indian Proceedings of the National Academy of Sciences 107 27 12091 12094 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Physical Sciences |
spellingShingle |
Physical 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. Minster, B. Mudelsee, M. Pol, K. Röthlisberger, R. Selmo, E. Waelbroeck, C. Abrupt change of Antarctic moisture origin at the end of Termination II |
topic_facet |
Physical Sciences |
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 |
Text |
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. |
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. Röthlisberger, R. Selmo, E. Waelbroeck, C. |
author_sort |
Masson-Delmotte, V. |
title |
Abrupt change of Antarctic moisture origin at the end of Termination II |
title_short |
Abrupt change of Antarctic moisture origin at the end of Termination II |
title_full |
Abrupt change of Antarctic moisture origin at the end of Termination II |
title_fullStr |
Abrupt change of Antarctic moisture origin at the end of Termination II |
title_full_unstemmed |
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://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901456 http://www.ncbi.nlm.nih.gov/pubmed/20566887 https://doi.org/10.1073/pnas.0914536107 |
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 |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901456 http://www.ncbi.nlm.nih.gov/pubmed/20566887 http://dx.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_ |
1766132290760474624 |