Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern
Abstract Recent rapid Arctic sea-ice reduction has been well documented in observations, reconstructions and model simulations. However, the rate of sea ice loss is highly variable in both time and space. The western Arctic has seen the fastest sea-ice decline, with substantial interannual and decad...
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Online Access: | http://dx.doi.org/10.1038/s41467-021-21830-z http://www.nature.com/articles/s41467-021-21830-z.pdf http://www.nature.com/articles/s41467-021-21830-z |
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crspringernat:10.1038/s41467-021-21830-z 2023-05-15T14:33:08+02:00 Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern Liu, Zhongfang Risi, Camille Codron, Francis He, Xiaogang Poulsen, Christopher J. Wei, Zhongwang Chen, Dong Li, Sha Bowen, Gabriel J. National Natural Science Foundation of China 2021 http://dx.doi.org/10.1038/s41467-021-21830-z http://www.nature.com/articles/s41467-021-21830-z.pdf http://www.nature.com/articles/s41467-021-21830-z en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Nature Communications volume 12, issue 1 ISSN 2041-1723 General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry journal-article 2021 crspringernat https://doi.org/10.1038/s41467-021-21830-z 2022-01-04T16:57:27Z Abstract Recent rapid Arctic sea-ice reduction has been well documented in observations, reconstructions and model simulations. However, the rate of sea ice loss is highly variable in both time and space. The western Arctic has seen the fastest sea-ice decline, with substantial interannual and decadal variability, but the underlying mechanism remains unclear. Here we demonstrate, through both observations and model simulations, that the Pacific North American (PNA) pattern is an important driver of western Arctic sea-ice variability, accounting for more than 25% of the interannual variance. Our results suggest that the recent persistent positive PNA pattern has led to increased heat and moisture fluxes from local processes and from advection of North Pacific airmasses into the western Arctic. These changes have increased lower-tropospheric temperature, humidity and downwelling longwave radiation in the western Arctic, accelerating sea-ice decline. Our results indicate that the PNA pattern is important for projections of Arctic climate changes, and that greenhouse warming and the resultant persistent positive PNA trend is likely to increase Arctic sea-ice loss. Article in Journal/Newspaper Arctic Sea ice Springer Nature (via Crossref) Arctic Pacific Nature Communications 12 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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English |
topic |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
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General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry Liu, Zhongfang Risi, Camille Codron, Francis He, Xiaogang Poulsen, Christopher J. Wei, Zhongwang Chen, Dong Li, Sha Bowen, Gabriel J. Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern |
topic_facet |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
description |
Abstract Recent rapid Arctic sea-ice reduction has been well documented in observations, reconstructions and model simulations. However, the rate of sea ice loss is highly variable in both time and space. The western Arctic has seen the fastest sea-ice decline, with substantial interannual and decadal variability, but the underlying mechanism remains unclear. Here we demonstrate, through both observations and model simulations, that the Pacific North American (PNA) pattern is an important driver of western Arctic sea-ice variability, accounting for more than 25% of the interannual variance. Our results suggest that the recent persistent positive PNA pattern has led to increased heat and moisture fluxes from local processes and from advection of North Pacific airmasses into the western Arctic. These changes have increased lower-tropospheric temperature, humidity and downwelling longwave radiation in the western Arctic, accelerating sea-ice decline. Our results indicate that the PNA pattern is important for projections of Arctic climate changes, and that greenhouse warming and the resultant persistent positive PNA trend is likely to increase Arctic sea-ice loss. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Liu, Zhongfang Risi, Camille Codron, Francis He, Xiaogang Poulsen, Christopher J. Wei, Zhongwang Chen, Dong Li, Sha Bowen, Gabriel J. |
author_facet |
Liu, Zhongfang Risi, Camille Codron, Francis He, Xiaogang Poulsen, Christopher J. Wei, Zhongwang Chen, Dong Li, Sha Bowen, Gabriel J. |
author_sort |
Liu, Zhongfang |
title |
Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern |
title_short |
Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern |
title_full |
Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern |
title_fullStr |
Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern |
title_full_unstemmed |
Acceleration of western Arctic sea ice loss linked to the Pacific North American pattern |
title_sort |
acceleration of western arctic sea ice loss linked to the pacific north american pattern |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41467-021-21830-z http://www.nature.com/articles/s41467-021-21830-z.pdf http://www.nature.com/articles/s41467-021-21830-z |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Nature Communications volume 12, issue 1 ISSN 2041-1723 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-021-21830-z |
container_title |
Nature Communications |
container_volume |
12 |
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1 |
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1766306421829271552 |