One-to-one coupling of glacial climate variability in Greenland and Antarctica
Precise knowledge of the phase relationship between climate changes in the two hemispheres is a key for understanding the Earth's climate dynamics. For the last glacial period, ice core studies1, 2 have revealed strong coupling of the largest millennial-scale warm events in Antarctica with the...
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ftnerc:oai:nora.nerc.ac.uk:935 2023-05-15T14:05:16+02:00 One-to-one coupling of glacial climate variability in Greenland and Antarctica Barbante, C. and 84 others, including Wolff, E.W. Mulvaney, R. Littot, G. Hutterli, M. Rothlisberger, R. 2006 http://nora.nerc.ac.uk/id/eprint/935/ https://doi.org/10.1038/nature05301 unknown Nature Publishing Group Barbante, C.; and 84 others, including; Wolff, E.W.; Mulvaney, R. orcid:0000-0002-5372-8148 Littot, G.; Hutterli, M.; Rothlisberger, R. 2006 One-to-one coupling of glacial climate variability in Greenland and Antarctica. Nature, 444 (7116). 195-198. https://doi.org/10.1038/nature05301 <https://doi.org/10.1038/nature05301> Meteorology and Climatology Glaciology Publication - Article PeerReviewed 2006 ftnerc https://doi.org/10.1038/nature05301 2023-02-04T19:20:34Z Precise knowledge of the phase relationship between climate changes in the two hemispheres is a key for understanding the Earth's climate dynamics. For the last glacial period, ice core studies1, 2 have revealed strong coupling of the largest millennial-scale warm events in Antarctica with the longest Dansgaard–Oeschger events in Greenland3, 4, 5 through the Atlantic meridional overturning circulation6, 7, 8. It has been unclear, however, whether the shorter Dansgaard–Oeschger events have counterparts in the shorter and less prominent Antarctic temperature variations, and whether these events are linked by the same mechanism. Here we present a glacial climate record derived from an ice core from Dronning Maud Land, Antarctica, which represents South Atlantic climate at a resolution comparable with the Greenland ice core records. After methane synchronization with an ice core from North Greenland9, the oxygen isotope record from the Dronning Maud Land ice core shows a one-to-one coupling between all Antarctic warm events and Greenland Dansgaard–Oeschger events by the bipolar seesaw6. The amplitude of the Antarctic warm events is found to be linearly dependent on the duration of the concurrent stadial in the North, suggesting that they all result from a similar reduction in the meridional overturning circulation. Article in Journal/Newspaper Antarc* Antarctic Antarctica Dansgaard-Oeschger events Dronning Maud Land Greenland Greenland ice core ice core Natural Environment Research Council: NERC Open Research Archive Antarctic Dronning Maud Land Greenland The Antarctic Nature 444 7116 195 198 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
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unknown |
topic |
Meteorology and Climatology Glaciology |
spellingShingle |
Meteorology and Climatology Glaciology Barbante, C. and 84 others, including Wolff, E.W. Mulvaney, R. Littot, G. Hutterli, M. Rothlisberger, R. One-to-one coupling of glacial climate variability in Greenland and Antarctica |
topic_facet |
Meteorology and Climatology Glaciology |
description |
Precise knowledge of the phase relationship between climate changes in the two hemispheres is a key for understanding the Earth's climate dynamics. For the last glacial period, ice core studies1, 2 have revealed strong coupling of the largest millennial-scale warm events in Antarctica with the longest Dansgaard–Oeschger events in Greenland3, 4, 5 through the Atlantic meridional overturning circulation6, 7, 8. It has been unclear, however, whether the shorter Dansgaard–Oeschger events have counterparts in the shorter and less prominent Antarctic temperature variations, and whether these events are linked by the same mechanism. Here we present a glacial climate record derived from an ice core from Dronning Maud Land, Antarctica, which represents South Atlantic climate at a resolution comparable with the Greenland ice core records. After methane synchronization with an ice core from North Greenland9, the oxygen isotope record from the Dronning Maud Land ice core shows a one-to-one coupling between all Antarctic warm events and Greenland Dansgaard–Oeschger events by the bipolar seesaw6. The amplitude of the Antarctic warm events is found to be linearly dependent on the duration of the concurrent stadial in the North, suggesting that they all result from a similar reduction in the meridional overturning circulation. |
format |
Article in Journal/Newspaper |
author |
Barbante, C. and 84 others, including Wolff, E.W. Mulvaney, R. Littot, G. Hutterli, M. Rothlisberger, R. |
author_facet |
Barbante, C. and 84 others, including Wolff, E.W. Mulvaney, R. Littot, G. Hutterli, M. Rothlisberger, R. |
author_sort |
Barbante, C. |
title |
One-to-one coupling of glacial climate variability in Greenland and Antarctica |
title_short |
One-to-one coupling of glacial climate variability in Greenland and Antarctica |
title_full |
One-to-one coupling of glacial climate variability in Greenland and Antarctica |
title_fullStr |
One-to-one coupling of glacial climate variability in Greenland and Antarctica |
title_full_unstemmed |
One-to-one coupling of glacial climate variability in Greenland and Antarctica |
title_sort |
one-to-one coupling of glacial climate variability in greenland and antarctica |
publisher |
Nature Publishing Group |
publishDate |
2006 |
url |
http://nora.nerc.ac.uk/id/eprint/935/ https://doi.org/10.1038/nature05301 |
geographic |
Antarctic Dronning Maud Land Greenland The Antarctic |
geographic_facet |
Antarctic Dronning Maud Land Greenland The Antarctic |
genre |
Antarc* Antarctic Antarctica Dansgaard-Oeschger events Dronning Maud Land Greenland Greenland ice core ice core |
genre_facet |
Antarc* Antarctic Antarctica Dansgaard-Oeschger events Dronning Maud Land Greenland Greenland ice core ice core |
op_relation |
Barbante, C.; and 84 others, including; Wolff, E.W.; Mulvaney, R. orcid:0000-0002-5372-8148 Littot, G.; Hutterli, M.; Rothlisberger, R. 2006 One-to-one coupling of glacial climate variability in Greenland and Antarctica. Nature, 444 (7116). 195-198. https://doi.org/10.1038/nature05301 <https://doi.org/10.1038/nature05301> |
op_doi |
https://doi.org/10.1038/nature05301 |
container_title |
Nature |
container_volume |
444 |
container_issue |
7116 |
container_start_page |
195 |
op_container_end_page |
198 |
_version_ |
1766277018490503168 |