Timing of Millennial-Scale Climate Change in Antarctica and Greenland During the Last Glacial Period
A precise relative chronology for Greenland and West Antarctic paleotemperature is extended to 90,000 years ago, based on correlation of atmospheric methane records from the Greenland Ice Sheet Project 2 and Byrd ice cores. Over this period, the onset of seven major millennial-scale warmings in Anta...
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American Association for the Advancement of Science (AAAS)
2001
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Online Access: | http://dx.doi.org/10.1126/science.291.5501.109 https://www.science.org/doi/pdf/10.1126/science.291.5501.109 |
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craaas:10.1126/science.291.5501.109 2024-10-06T13:43:45+00:00 Timing of Millennial-Scale Climate Change in Antarctica and Greenland During the Last Glacial Period Blunier, Thomas Brook, Edward J. 2001 http://dx.doi.org/10.1126/science.291.5501.109 https://www.science.org/doi/pdf/10.1126/science.291.5501.109 en eng American Association for the Advancement of Science (AAAS) Science volume 291, issue 5501, page 109-112 ISSN 0036-8075 1095-9203 journal-article 2001 craaas https://doi.org/10.1126/science.291.5501.109 2024-09-12T04:01:19Z A precise relative chronology for Greenland and West Antarctic paleotemperature is extended to 90,000 years ago, based on correlation of atmospheric methane records from the Greenland Ice Sheet Project 2 and Byrd ice cores. Over this period, the onset of seven major millennial-scale warmings in Antarctica preceded the onset of Greenland warmings by 1500 to 3000 years. In general, Antarctic temperatures increased gradually while Greenland temperatures were decreasing or constant, and the termination of Antarctic warming was apparently coincident with the onset of rapid warming in Greenland. This pattern provides further evidence for the operation of a “bipolar see-saw” in air temperatures and an oceanic teleconnection between the hemispheres on millennial time scales. Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland Greenland Ice Sheet Project Ice Sheet AAAS Resource Center (American Association for the Advancement of Science) Antarctic Byrd Greenland Science 291 5501 109 112 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
A precise relative chronology for Greenland and West Antarctic paleotemperature is extended to 90,000 years ago, based on correlation of atmospheric methane records from the Greenland Ice Sheet Project 2 and Byrd ice cores. Over this period, the onset of seven major millennial-scale warmings in Antarctica preceded the onset of Greenland warmings by 1500 to 3000 years. In general, Antarctic temperatures increased gradually while Greenland temperatures were decreasing or constant, and the termination of Antarctic warming was apparently coincident with the onset of rapid warming in Greenland. This pattern provides further evidence for the operation of a “bipolar see-saw” in air temperatures and an oceanic teleconnection between the hemispheres on millennial time scales. |
format |
Article in Journal/Newspaper |
author |
Blunier, Thomas Brook, Edward J. |
spellingShingle |
Blunier, Thomas Brook, Edward J. Timing of Millennial-Scale Climate Change in Antarctica and Greenland During the Last Glacial Period |
author_facet |
Blunier, Thomas Brook, Edward J. |
author_sort |
Blunier, Thomas |
title |
Timing of Millennial-Scale Climate Change in Antarctica and Greenland During the Last Glacial Period |
title_short |
Timing of Millennial-Scale Climate Change in Antarctica and Greenland During the Last Glacial Period |
title_full |
Timing of Millennial-Scale Climate Change in Antarctica and Greenland During the Last Glacial Period |
title_fullStr |
Timing of Millennial-Scale Climate Change in Antarctica and Greenland During the Last Glacial Period |
title_full_unstemmed |
Timing of Millennial-Scale Climate Change in Antarctica and Greenland During the Last Glacial Period |
title_sort |
timing of millennial-scale climate change in antarctica and greenland during the last glacial period |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2001 |
url |
http://dx.doi.org/10.1126/science.291.5501.109 https://www.science.org/doi/pdf/10.1126/science.291.5501.109 |
geographic |
Antarctic Byrd Greenland |
geographic_facet |
Antarctic Byrd Greenland |
genre |
Antarc* Antarctic Antarctica Greenland Greenland Ice Sheet Project Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Greenland Greenland Ice Sheet Project Ice Sheet |
op_source |
Science volume 291, issue 5501, page 109-112 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.291.5501.109 |
container_title |
Science |
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291 |
container_issue |
5501 |
container_start_page |
109 |
op_container_end_page |
112 |
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1812182272414056448 |