A dynamic and thermodynamic coupling view of the linkages between Eurasian cooling and Arctic warming
Abstract Investigating the contrast between wintertime warming in the Arctic and cooling in Eurasia is of great importance for understanding regional climate change. In this study, we propose a dynamic and thermodynamic coupling view of the linkages between wintertime Arctic warming and Eurasian coo...
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2021
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crspringernat:10.1007/s00382-021-06029-8 2023-05-15T14:32:42+02:00 A dynamic and thermodynamic coupling view of the linkages between Eurasian cooling and Arctic warming Xie, Yongkun Wu, Guoxiong Liu, Yimin Huang, Jianping Nie, Hanbin National Natural Science Foundation of China Strategic Priority Research Program of Chinese Academy of Sciences Priority Research Program of the Chinese Academy of Sciences Fundamental Research Funds for the Central Universities Gansu Provincial Special Fund Project for Guiding Scientific and Technological Innovation and Development 2021 http://dx.doi.org/10.1007/s00382-021-06029-8 https://link.springer.com/content/pdf/10.1007/s00382-021-06029-8.pdf https://link.springer.com/article/10.1007/s00382-021-06029-8/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Climate Dynamics ISSN 0930-7575 1432-0894 Atmospheric Science journal-article 2021 crspringernat https://doi.org/10.1007/s00382-021-06029-8 2022-01-04T15:33:32Z Abstract Investigating the contrast between wintertime warming in the Arctic and cooling in Eurasia is of great importance for understanding regional climate change. In this study, we propose a dynamic and thermodynamic coupling view of the linkages between wintertime Arctic warming and Eurasian cooling since 1979. The key factors are the energy budget at the Earth’s surface, the diabatic heating and baroclinicity of the atmosphere, and subsurface ocean heat. A summertime origin of wintertime Arctic warming suggests a partial driving role of the Arctic in wintertime Eurasian cooling. The reasons for this finding are as follows. First, there is a dipole pattern in the diabatic heating change in winter over the Arctic Ocean corresponding to the anticyclonic circulation that links Eurasian cooling and Arctic warming. Second, the change in diabatic heating of the atmosphere is determined by sensible heat at the Earth’s surface through vertical diffusion. Third, the positive sensible heat change in the eastern Arctic sector in winter originates from the summertime enhanced absorption of solar radiation by the subsurface ocean over the sea ice loss region. Meanwhile, the negative sensible heat change in the western Arctic sector and wide Arctic warming can be explained by the circulation development triggered by the change in the east. Additionally, the background strong baroclinicity of the atmosphere in mid-high latitudes and corresponding two-way Arctic and mid-latitude interactions are necessary for circulation development in winter. Furthermore, the seasonality of the changes indicates that Eurasian cooling occurs only in winter because the diabatic heating change in the Arctic is strongest in winter. Overall, the comprehensive mechanisms from the summertime Earth’s surface and subsurface ocean to the wintertime atmosphere suggest a driving role of the Arctic. Note that the situation in interannual variability is more complex than the overall trend because the persistence of the influence of summertime sea ice is weakly established in terms of interannual variability. Article in Journal/Newspaper Arctic Arctic Ocean Climate change Sea ice Springer Nature (via Crossref) Arctic Arctic Ocean Climate Dynamics |
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Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Atmospheric Science |
spellingShingle |
Atmospheric Science Xie, Yongkun Wu, Guoxiong Liu, Yimin Huang, Jianping Nie, Hanbin A dynamic and thermodynamic coupling view of the linkages between Eurasian cooling and Arctic warming |
topic_facet |
Atmospheric Science |
description |
Abstract Investigating the contrast between wintertime warming in the Arctic and cooling in Eurasia is of great importance for understanding regional climate change. In this study, we propose a dynamic and thermodynamic coupling view of the linkages between wintertime Arctic warming and Eurasian cooling since 1979. The key factors are the energy budget at the Earth’s surface, the diabatic heating and baroclinicity of the atmosphere, and subsurface ocean heat. A summertime origin of wintertime Arctic warming suggests a partial driving role of the Arctic in wintertime Eurasian cooling. The reasons for this finding are as follows. First, there is a dipole pattern in the diabatic heating change in winter over the Arctic Ocean corresponding to the anticyclonic circulation that links Eurasian cooling and Arctic warming. Second, the change in diabatic heating of the atmosphere is determined by sensible heat at the Earth’s surface through vertical diffusion. Third, the positive sensible heat change in the eastern Arctic sector in winter originates from the summertime enhanced absorption of solar radiation by the subsurface ocean over the sea ice loss region. Meanwhile, the negative sensible heat change in the western Arctic sector and wide Arctic warming can be explained by the circulation development triggered by the change in the east. Additionally, the background strong baroclinicity of the atmosphere in mid-high latitudes and corresponding two-way Arctic and mid-latitude interactions are necessary for circulation development in winter. Furthermore, the seasonality of the changes indicates that Eurasian cooling occurs only in winter because the diabatic heating change in the Arctic is strongest in winter. Overall, the comprehensive mechanisms from the summertime Earth’s surface and subsurface ocean to the wintertime atmosphere suggest a driving role of the Arctic. Note that the situation in interannual variability is more complex than the overall trend because the persistence of the influence of summertime sea ice is weakly established in terms of interannual variability. |
author2 |
National Natural Science Foundation of China Strategic Priority Research Program of Chinese Academy of Sciences Priority Research Program of the Chinese Academy of Sciences Fundamental Research Funds for the Central Universities Gansu Provincial Special Fund Project for Guiding Scientific and Technological Innovation and Development |
format |
Article in Journal/Newspaper |
author |
Xie, Yongkun Wu, Guoxiong Liu, Yimin Huang, Jianping Nie, Hanbin |
author_facet |
Xie, Yongkun Wu, Guoxiong Liu, Yimin Huang, Jianping Nie, Hanbin |
author_sort |
Xie, Yongkun |
title |
A dynamic and thermodynamic coupling view of the linkages between Eurasian cooling and Arctic warming |
title_short |
A dynamic and thermodynamic coupling view of the linkages between Eurasian cooling and Arctic warming |
title_full |
A dynamic and thermodynamic coupling view of the linkages between Eurasian cooling and Arctic warming |
title_fullStr |
A dynamic and thermodynamic coupling view of the linkages between Eurasian cooling and Arctic warming |
title_full_unstemmed |
A dynamic and thermodynamic coupling view of the linkages between Eurasian cooling and Arctic warming |
title_sort |
dynamic and thermodynamic coupling view of the linkages between eurasian cooling and arctic warming |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1007/s00382-021-06029-8 https://link.springer.com/content/pdf/10.1007/s00382-021-06029-8.pdf https://link.springer.com/article/10.1007/s00382-021-06029-8/fulltext.html |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change Sea ice |
genre_facet |
Arctic Arctic Ocean Climate change Sea ice |
op_source |
Climate Dynamics ISSN 0930-7575 1432-0894 |
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/10.1007/s00382-021-06029-8 |
container_title |
Climate Dynamics |
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1766306060747931648 |