Dynamics of Recent Climate Change in the Arctic
The pattern of recent surface warming observed in the Arctic exhibits both polar amplification and a strong relation with trends in the Arctic Oscillation mode of atmospheric circulation. Paleoclimate analyses indicate that Arctic surface temperatures were higher during the 20th century than during...
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American Association for the Advancement of Science (AAAS)
2002
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Online Access: | http://dx.doi.org/10.1126/science.1076522 https://www.science.org/doi/pdf/10.1126/science.1076522 |
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craaas:10.1126/science.1076522 2024-10-20T14:05:50+00:00 Dynamics of Recent Climate Change in the Arctic Moritz, Richard E. Bitz, Cecilia M. Steig, Eric J. 2002 http://dx.doi.org/10.1126/science.1076522 https://www.science.org/doi/pdf/10.1126/science.1076522 en eng American Association for the Advancement of Science (AAAS) Science volume 297, issue 5586, page 1497-1502 ISSN 0036-8075 1095-9203 journal-article 2002 craaas https://doi.org/10.1126/science.1076522 2024-09-27T04:00:51Z The pattern of recent surface warming observed in the Arctic exhibits both polar amplification and a strong relation with trends in the Arctic Oscillation mode of atmospheric circulation. Paleoclimate analyses indicate that Arctic surface temperatures were higher during the 20th century than during the preceding few centuries and that polar amplification is a common feature of the past. Paleoclimate evidence for Holocene variations in the Arctic Oscillation is mixed. Current understanding of physical mechanisms controlling atmospheric dynamics suggests that anthropogenic influences could have forced the recent trend in the Arctic Oscillation, but simulations with global climate models do not agree. In most simulations, the trend in the Arctic Oscillation is much weaker than observed. In addition, the simulated warming tends to be largest in autumn over the Arctic Ocean, whereas observed warming appears to be largest in winter and spring over the continents. Article in Journal/Newspaper Arctic Arctic Ocean Climate change AAAS Resource Center (American Association for the Advancement of Science) Arctic Arctic Ocean Science 297 5586 1497 1502 |
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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 |
The pattern of recent surface warming observed in the Arctic exhibits both polar amplification and a strong relation with trends in the Arctic Oscillation mode of atmospheric circulation. Paleoclimate analyses indicate that Arctic surface temperatures were higher during the 20th century than during the preceding few centuries and that polar amplification is a common feature of the past. Paleoclimate evidence for Holocene variations in the Arctic Oscillation is mixed. Current understanding of physical mechanisms controlling atmospheric dynamics suggests that anthropogenic influences could have forced the recent trend in the Arctic Oscillation, but simulations with global climate models do not agree. In most simulations, the trend in the Arctic Oscillation is much weaker than observed. In addition, the simulated warming tends to be largest in autumn over the Arctic Ocean, whereas observed warming appears to be largest in winter and spring over the continents. |
format |
Article in Journal/Newspaper |
author |
Moritz, Richard E. Bitz, Cecilia M. Steig, Eric J. |
spellingShingle |
Moritz, Richard E. Bitz, Cecilia M. Steig, Eric J. Dynamics of Recent Climate Change in the Arctic |
author_facet |
Moritz, Richard E. Bitz, Cecilia M. Steig, Eric J. |
author_sort |
Moritz, Richard E. |
title |
Dynamics of Recent Climate Change in the Arctic |
title_short |
Dynamics of Recent Climate Change in the Arctic |
title_full |
Dynamics of Recent Climate Change in the Arctic |
title_fullStr |
Dynamics of Recent Climate Change in the Arctic |
title_full_unstemmed |
Dynamics of Recent Climate Change in the Arctic |
title_sort |
dynamics of recent climate change in the arctic |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1126/science.1076522 https://www.science.org/doi/pdf/10.1126/science.1076522 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change |
genre_facet |
Arctic Arctic Ocean Climate change |
op_source |
Science volume 297, issue 5586, page 1497-1502 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.1076522 |
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Science |
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297 |
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5586 |
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1497 |
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1502 |
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1813444044503646208 |