Amplified winter Arctic tropospheric warming and its link to atmospheric circulation changes
The physical cause of amplified deep Arctic tropospheric warming in winter in the Barents–Kara Seas (BKS) is examined. The authors propose that changes in the atmospheric circulation patterns are important for deep Arctic tropospheric warming in winter. It is found that the retrograde Urals blocking...
Published in: | Atmospheric and Oceanic Science Letters |
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KeAi Communications Co., Ltd.
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ftdoajarticles:oai:doaj.org/article:c483872d371549ea8587b579b050a068 2023-05-15T14:45:37+02:00 Amplified winter Arctic tropospheric warming and its link to atmospheric circulation changes Xian-Ting HUANG Yi-Na DIAO De-Hai LUO 2017-11-01T00:00:00Z https://doi.org/10.1080/16742834.2017.1394159 https://doaj.org/article/c483872d371549ea8587b579b050a068 EN eng KeAi Communications Co., Ltd. http://dx.doi.org/10.1080/16742834.2017.1394159 https://doaj.org/toc/1674-2834 https://doaj.org/toc/2376-6123 1674-2834 2376-6123 doi:10.1080/16742834.2017.1394159 https://doaj.org/article/c483872d371549ea8587b579b050a068 Atmospheric and Oceanic Science Letters, Vol 10, Iss 6, Pp 435-445 (2017) Arctic warming Ural blocking NAO water vapor sensible heat energy Environmental sciences GE1-350 Oceanography GC1-1581 article 2017 ftdoajarticles https://doi.org/10.1080/16742834.2017.1394159 2022-12-31T06:10:19Z The physical cause of amplified deep Arctic tropospheric warming in winter in the Barents–Kara Seas (BKS) is examined. The authors propose that changes in the atmospheric circulation patterns are important for deep Arctic tropospheric warming in winter. It is found that the retrograde Urals blocking (UB) event concurrent with a negative North Atlantic Oscillation (NAO−) that arises from a prior negative Arctic Oscillation (AO−) is not favorable for tropospheric warming because of less water vapor over the BKS. Such UB events are related to more winter BKS sea ice associated with the negative sea surface temperature (SST) anomaly in the BKS. In contrast, a UB occurring together with a positive North Atlantic Oscillation (NAO+) shows less movement and can significantly enhance tropospheric warming over the BKS through increasing tropospheric sensible heat energy due to a persistent BKS water vapor increase. This type of quasi-stationary UB event is related to prior less BKS sea ice associated with a positive BKS SST anomaly that coexists with the North Atlantic SST tripole structure. In summary, because warm, wet and low sea-ice winters in the BKS are related to UB events with an NAO+, and depend on the winter prior sea-ice condition, the tropospheric warming is to some extent a manifestation of the sea-ice–blocking–moisture feedback in the BKS. Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Atmospheric and Oceanic Science Letters 10 6 435 445 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic warming Ural blocking NAO water vapor sensible heat energy Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
Arctic warming Ural blocking NAO water vapor sensible heat energy Environmental sciences GE1-350 Oceanography GC1-1581 Xian-Ting HUANG Yi-Na DIAO De-Hai LUO Amplified winter Arctic tropospheric warming and its link to atmospheric circulation changes |
topic_facet |
Arctic warming Ural blocking NAO water vapor sensible heat energy Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
The physical cause of amplified deep Arctic tropospheric warming in winter in the Barents–Kara Seas (BKS) is examined. The authors propose that changes in the atmospheric circulation patterns are important for deep Arctic tropospheric warming in winter. It is found that the retrograde Urals blocking (UB) event concurrent with a negative North Atlantic Oscillation (NAO−) that arises from a prior negative Arctic Oscillation (AO−) is not favorable for tropospheric warming because of less water vapor over the BKS. Such UB events are related to more winter BKS sea ice associated with the negative sea surface temperature (SST) anomaly in the BKS. In contrast, a UB occurring together with a positive North Atlantic Oscillation (NAO+) shows less movement and can significantly enhance tropospheric warming over the BKS through increasing tropospheric sensible heat energy due to a persistent BKS water vapor increase. This type of quasi-stationary UB event is related to prior less BKS sea ice associated with a positive BKS SST anomaly that coexists with the North Atlantic SST tripole structure. In summary, because warm, wet and low sea-ice winters in the BKS are related to UB events with an NAO+, and depend on the winter prior sea-ice condition, the tropospheric warming is to some extent a manifestation of the sea-ice–blocking–moisture feedback in the BKS. |
format |
Article in Journal/Newspaper |
author |
Xian-Ting HUANG Yi-Na DIAO De-Hai LUO |
author_facet |
Xian-Ting HUANG Yi-Na DIAO De-Hai LUO |
author_sort |
Xian-Ting HUANG |
title |
Amplified winter Arctic tropospheric warming and its link to atmospheric circulation changes |
title_short |
Amplified winter Arctic tropospheric warming and its link to atmospheric circulation changes |
title_full |
Amplified winter Arctic tropospheric warming and its link to atmospheric circulation changes |
title_fullStr |
Amplified winter Arctic tropospheric warming and its link to atmospheric circulation changes |
title_full_unstemmed |
Amplified winter Arctic tropospheric warming and its link to atmospheric circulation changes |
title_sort |
amplified winter arctic tropospheric warming and its link to atmospheric circulation changes |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2017 |
url |
https://doi.org/10.1080/16742834.2017.1394159 https://doaj.org/article/c483872d371549ea8587b579b050a068 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic North Atlantic North Atlantic oscillation Sea ice |
op_source |
Atmospheric and Oceanic Science Letters, Vol 10, Iss 6, Pp 435-445 (2017) |
op_relation |
http://dx.doi.org/10.1080/16742834.2017.1394159 https://doaj.org/toc/1674-2834 https://doaj.org/toc/2376-6123 1674-2834 2376-6123 doi:10.1080/16742834.2017.1394159 https://doaj.org/article/c483872d371549ea8587b579b050a068 |
op_doi |
https://doi.org/10.1080/16742834.2017.1394159 |
container_title |
Atmospheric and Oceanic Science Letters |
container_volume |
10 |
container_issue |
6 |
container_start_page |
435 |
op_container_end_page |
445 |
_version_ |
1766317006853767168 |