Timing of Atmospheric CO 2 and Antarctic Temperature Changes Across Termination III
The analysis of air bubbles from ice cores has yielded a precise record of atmospheric greenhouse gas concentrations, but the timing of changes in these gases with respect to temperature is not accurately known because of uncertainty in the gas age–ice age difference. We have measured the isotopic c...
Published in: | Science |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Association for the Advancement of Science (AAAS)
2003
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1126/science.1078758 https://www.science.org/doi/pdf/10.1126/science.1078758 |
id |
craaas:10.1126/science.1078758 |
---|---|
record_format |
openpolar |
spelling |
craaas:10.1126/science.1078758 2024-06-23T07:46:33+00:00 Timing of Atmospheric CO 2 and Antarctic Temperature Changes Across Termination III Caillon, Nicolas Severinghaus, Jeffrey P. Jouzel, Jean Barnola, Jean-Marc Kang, Jiancheng Lipenkov, Volodya Y. 2003 http://dx.doi.org/10.1126/science.1078758 https://www.science.org/doi/pdf/10.1126/science.1078758 en eng American Association for the Advancement of Science (AAAS) Science volume 299, issue 5613, page 1728-1731 ISSN 0036-8075 1095-9203 journal-article 2003 craaas https://doi.org/10.1126/science.1078758 2024-06-06T04:01:12Z The analysis of air bubbles from ice cores has yielded a precise record of atmospheric greenhouse gas concentrations, but the timing of changes in these gases with respect to temperature is not accurately known because of uncertainty in the gas age–ice age difference. We have measured the isotopic composition of argon in air bubbles in the Vostok core during Termination III (∼240,000 years before the present). This record most likely reflects the temperature and accumulation change, although the mechanism remains unclear. The sequence of events during Termination III suggests that the CO 2 increase lagged Antarctic deglacial warming by 800 ± 200 years and preceded the Northern Hemisphere deglaciation. Article in Journal/Newspaper Antarc* Antarctic AAAS Resource Center (American Association for the Advancement of Science) Antarctic Science 299 5613 1728 1731 |
institution |
Open Polar |
collection |
AAAS Resource Center (American Association for the Advancement of Science) |
op_collection_id |
craaas |
language |
English |
description |
The analysis of air bubbles from ice cores has yielded a precise record of atmospheric greenhouse gas concentrations, but the timing of changes in these gases with respect to temperature is not accurately known because of uncertainty in the gas age–ice age difference. We have measured the isotopic composition of argon in air bubbles in the Vostok core during Termination III (∼240,000 years before the present). This record most likely reflects the temperature and accumulation change, although the mechanism remains unclear. The sequence of events during Termination III suggests that the CO 2 increase lagged Antarctic deglacial warming by 800 ± 200 years and preceded the Northern Hemisphere deglaciation. |
format |
Article in Journal/Newspaper |
author |
Caillon, Nicolas Severinghaus, Jeffrey P. Jouzel, Jean Barnola, Jean-Marc Kang, Jiancheng Lipenkov, Volodya Y. |
spellingShingle |
Caillon, Nicolas Severinghaus, Jeffrey P. Jouzel, Jean Barnola, Jean-Marc Kang, Jiancheng Lipenkov, Volodya Y. Timing of Atmospheric CO 2 and Antarctic Temperature Changes Across Termination III |
author_facet |
Caillon, Nicolas Severinghaus, Jeffrey P. Jouzel, Jean Barnola, Jean-Marc Kang, Jiancheng Lipenkov, Volodya Y. |
author_sort |
Caillon, Nicolas |
title |
Timing of Atmospheric CO 2 and Antarctic Temperature Changes Across Termination III |
title_short |
Timing of Atmospheric CO 2 and Antarctic Temperature Changes Across Termination III |
title_full |
Timing of Atmospheric CO 2 and Antarctic Temperature Changes Across Termination III |
title_fullStr |
Timing of Atmospheric CO 2 and Antarctic Temperature Changes Across Termination III |
title_full_unstemmed |
Timing of Atmospheric CO 2 and Antarctic Temperature Changes Across Termination III |
title_sort |
timing of atmospheric co 2 and antarctic temperature changes across termination iii |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2003 |
url |
http://dx.doi.org/10.1126/science.1078758 https://www.science.org/doi/pdf/10.1126/science.1078758 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Science volume 299, issue 5613, page 1728-1731 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.1078758 |
container_title |
Science |
container_volume |
299 |
container_issue |
5613 |
container_start_page |
1728 |
op_container_end_page |
1731 |
_version_ |
1802646676451622912 |