Contributors to linkage between Arctic warming and East Asian winter climate
Previous modelling and observational studies have shown discrepancies in the interannual relationship of winter surface air temperature (SAT) between Arctic and East Asia, stimulating the debate about whether Arctic change can influence midlatitude climate. This study uses two sets of coordinated ex...
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Online Access: | https://hdl.handle.net/11250/2838776 https://doi.org/10.1007/s00382-021-05820-x |
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ftunivbergen:oai:bora.uib.no:11250/2838776 2023-05-15T14:32:22+02:00 Contributors to linkage between Arctic warming and East Asian winter climate Xu, Xinping He, Shengping Gao, Yongqi Zhou, Botao Wang, Huijun 2021 application/pdf https://hdl.handle.net/11250/2838776 https://doi.org/10.1007/s00382-021-05820-x eng eng Springer urn:issn:0930-7575 https://hdl.handle.net/11250/2838776 https://doi.org/10.1007/s00382-021-05820-x cristin:1917764 Climate Dynamics. 2021, 57, 2543-2555. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright The Author(s) 2021 Climate Dynamics 2543-2555 57 Journal article Peer reviewed 2021 ftunivbergen https://doi.org/10.1007/s00382-021-05820-x 2023-03-14T17:39:24Z Previous modelling and observational studies have shown discrepancies in the interannual relationship of winter surface air temperature (SAT) between Arctic and East Asia, stimulating the debate about whether Arctic change can influence midlatitude climate. This study uses two sets of coordinated experiments (EXP1 and EXP2) from six different atmospheric general circulation models. Both EXP1 and EXP2 consist of 130 ensemble members, each of which in EXP1 (EXP2) was forced by the same observed daily varying sea ice and daily varying (daily climatological) sea surface temperature (SST) for 1982–2014 but with different atmospheric initial conditions. Large spread exists among ensemble members in simulating the Arctic–East Asian SAT relationship. Only a fraction of ensemble members can reproduce the observed deep Arctic warming–cold continent pattern which extends from surface to upper troposphere, implying the important role of atmospheric internal variability. The mechanisms of deep Arctic warming and shallow Arctic warming are further distinguished. Arctic warming aloft is caused primarily by poleward moisture transport, which in conjunction with the surface warming coupled with sea ice melting constitutes the surface-amplified deep Arctic warming throughout the troposphere. These processes associated with the deep Arctic warming may be related to the forcing of remote SST when there is favorable atmospheric circulation such as Rossby wave train propagating from the North Atlantic into the Arctic. publishedVersion Article in Journal/Newspaper Arctic North Atlantic Sea ice University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Climate Dynamics 57 9-10 2543 2555 |
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Open Polar |
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University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
description |
Previous modelling and observational studies have shown discrepancies in the interannual relationship of winter surface air temperature (SAT) between Arctic and East Asia, stimulating the debate about whether Arctic change can influence midlatitude climate. This study uses two sets of coordinated experiments (EXP1 and EXP2) from six different atmospheric general circulation models. Both EXP1 and EXP2 consist of 130 ensemble members, each of which in EXP1 (EXP2) was forced by the same observed daily varying sea ice and daily varying (daily climatological) sea surface temperature (SST) for 1982–2014 but with different atmospheric initial conditions. Large spread exists among ensemble members in simulating the Arctic–East Asian SAT relationship. Only a fraction of ensemble members can reproduce the observed deep Arctic warming–cold continent pattern which extends from surface to upper troposphere, implying the important role of atmospheric internal variability. The mechanisms of deep Arctic warming and shallow Arctic warming are further distinguished. Arctic warming aloft is caused primarily by poleward moisture transport, which in conjunction with the surface warming coupled with sea ice melting constitutes the surface-amplified deep Arctic warming throughout the troposphere. These processes associated with the deep Arctic warming may be related to the forcing of remote SST when there is favorable atmospheric circulation such as Rossby wave train propagating from the North Atlantic into the Arctic. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Xu, Xinping He, Shengping Gao, Yongqi Zhou, Botao Wang, Huijun |
spellingShingle |
Xu, Xinping He, Shengping Gao, Yongqi Zhou, Botao Wang, Huijun Contributors to linkage between Arctic warming and East Asian winter climate |
author_facet |
Xu, Xinping He, Shengping Gao, Yongqi Zhou, Botao Wang, Huijun |
author_sort |
Xu, Xinping |
title |
Contributors to linkage between Arctic warming and East Asian winter climate |
title_short |
Contributors to linkage between Arctic warming and East Asian winter climate |
title_full |
Contributors to linkage between Arctic warming and East Asian winter climate |
title_fullStr |
Contributors to linkage between Arctic warming and East Asian winter climate |
title_full_unstemmed |
Contributors to linkage between Arctic warming and East Asian winter climate |
title_sort |
contributors to linkage between arctic warming and east asian winter climate |
publisher |
Springer |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2838776 https://doi.org/10.1007/s00382-021-05820-x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic Sea ice |
genre_facet |
Arctic North Atlantic Sea ice |
op_source |
Climate Dynamics 2543-2555 57 |
op_relation |
urn:issn:0930-7575 https://hdl.handle.net/11250/2838776 https://doi.org/10.1007/s00382-021-05820-x cristin:1917764 Climate Dynamics. 2021, 57, 2543-2555. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright The Author(s) 2021 |
op_doi |
https://doi.org/10.1007/s00382-021-05820-x |
container_title |
Climate Dynamics |
container_volume |
57 |
container_issue |
9-10 |
container_start_page |
2543 |
op_container_end_page |
2555 |
_version_ |
1766305786489733120 |