Interdecadal Linkage Between the Winter Northern Hemisphere Climate and Arctic Sea Ice of Diverse Location and Seasonality
During the past few decades, Arctic sea-ice has declined rapidly in both autumn and winter, which is likely to link extreme weather and climate events across the Northern Hemisphere midlatitudes. Here, we use reanalysis data to investigate the possible linkage between mid–high-latitude atmospheric c...
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Online Access: | http://dx.doi.org/10.3389/feart.2021.758619 https://www.frontiersin.org/articles/10.3389/feart.2021.758619/full |
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crfrontiers:10.3389/feart.2021.758619 2024-09-09T19:20:01+00:00 Interdecadal Linkage Between the Winter Northern Hemisphere Climate and Arctic Sea Ice of Diverse Location and Seasonality He, Xulong Zhang, Ruonan Ding, Shuoyi Zuo, Zhiyan National Key Research and Development Program of China National Natural Science Foundation of China-China Academy of General Technology Joint Fund for Basic Research 2021 http://dx.doi.org/10.3389/feart.2021.758619 https://www.frontiersin.org/articles/10.3389/feart.2021.758619/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 9 ISSN 2296-6463 journal-article 2021 crfrontiers https://doi.org/10.3389/feart.2021.758619 2024-07-23T04:03:01Z During the past few decades, Arctic sea-ice has declined rapidly in both autumn and winter, which is likely to link extreme weather and climate events across the Northern Hemisphere midlatitudes. Here, we use reanalysis data to investigate the possible linkage between mid–high-latitude atmospheric circulation and Arctic sea-ice loss in different geographical locations and seasons and associated impacts on wintertime climate on interdecadal timescales. Four critical sea-ice subregions are analyzed in this study—namely, the Pan-Arctic, Barents–Kara–Laptev Seas (BKL), East Siberia–Chukchi–Beaufort Seas (EsCB), and Bering Sea (Ber). Results suggest that interdecadal reduction of autumn sea-ice, irrespective of geographical location, is dynamically associated with the negative phase of the North Atlantic Oscillation (NAO) in the subsequent winter via stratospheric pathways. Specifically, autumn sea-ice loss appears to cause a weakened stratospheric polar vortex that propagates to the troposphere in the ensuing months, leading to lower surface air temperature and a deficit in precipitation over Siberia and northeastern North America. Meanwhile, an anomalous cyclone over Europe favors excessive precipitation over southern Europe. For wintertime sea-ice loss in the Pan-Arctic and BKL, a weak positive NAO phase, with a dipole pressure pattern over Greenland–northeastern North America and North Atlantic, and a shrunken Siberian high over Eurasia are observed over mid–high-latitudes. The former results in excessive precipitation over northwestern and southeastern North America, whilst the latter leads to less precipitation and mild winter over Siberia. In contrast, Ber sea-ice loss is associated with a circumglobal wave train downstream of the Bering Sea, leading to extensive warming over Eurasia. The anomalous dipole cyclone and anticyclone over the Bering Sea transport more Pacific and Arctic water vapor to North America, and the anomalous cyclone over the Barents Sea results in abundant precipitation in Siberia. Such ... Article in Journal/Newspaper Arctic Barents Sea Bering Sea Chukchi Greenland Kara-Laptev laptev North Atlantic North Atlantic oscillation Sea ice Siberia Frontiers (Publisher) Arctic Barents Sea Bering Sea Greenland Pacific Frontiers in Earth Science 9 |
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Open Polar |
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Frontiers (Publisher) |
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crfrontiers |
language |
unknown |
description |
During the past few decades, Arctic sea-ice has declined rapidly in both autumn and winter, which is likely to link extreme weather and climate events across the Northern Hemisphere midlatitudes. Here, we use reanalysis data to investigate the possible linkage between mid–high-latitude atmospheric circulation and Arctic sea-ice loss in different geographical locations and seasons and associated impacts on wintertime climate on interdecadal timescales. Four critical sea-ice subregions are analyzed in this study—namely, the Pan-Arctic, Barents–Kara–Laptev Seas (BKL), East Siberia–Chukchi–Beaufort Seas (EsCB), and Bering Sea (Ber). Results suggest that interdecadal reduction of autumn sea-ice, irrespective of geographical location, is dynamically associated with the negative phase of the North Atlantic Oscillation (NAO) in the subsequent winter via stratospheric pathways. Specifically, autumn sea-ice loss appears to cause a weakened stratospheric polar vortex that propagates to the troposphere in the ensuing months, leading to lower surface air temperature and a deficit in precipitation over Siberia and northeastern North America. Meanwhile, an anomalous cyclone over Europe favors excessive precipitation over southern Europe. For wintertime sea-ice loss in the Pan-Arctic and BKL, a weak positive NAO phase, with a dipole pressure pattern over Greenland–northeastern North America and North Atlantic, and a shrunken Siberian high over Eurasia are observed over mid–high-latitudes. The former results in excessive precipitation over northwestern and southeastern North America, whilst the latter leads to less precipitation and mild winter over Siberia. In contrast, Ber sea-ice loss is associated with a circumglobal wave train downstream of the Bering Sea, leading to extensive warming over Eurasia. The anomalous dipole cyclone and anticyclone over the Bering Sea transport more Pacific and Arctic water vapor to North America, and the anomalous cyclone over the Barents Sea results in abundant precipitation in Siberia. Such ... |
author2 |
National Key Research and Development Program of China National Natural Science Foundation of China-China Academy of General Technology Joint Fund for Basic Research |
format |
Article in Journal/Newspaper |
author |
He, Xulong Zhang, Ruonan Ding, Shuoyi Zuo, Zhiyan |
spellingShingle |
He, Xulong Zhang, Ruonan Ding, Shuoyi Zuo, Zhiyan Interdecadal Linkage Between the Winter Northern Hemisphere Climate and Arctic Sea Ice of Diverse Location and Seasonality |
author_facet |
He, Xulong Zhang, Ruonan Ding, Shuoyi Zuo, Zhiyan |
author_sort |
He, Xulong |
title |
Interdecadal Linkage Between the Winter Northern Hemisphere Climate and Arctic Sea Ice of Diverse Location and Seasonality |
title_short |
Interdecadal Linkage Between the Winter Northern Hemisphere Climate and Arctic Sea Ice of Diverse Location and Seasonality |
title_full |
Interdecadal Linkage Between the Winter Northern Hemisphere Climate and Arctic Sea Ice of Diverse Location and Seasonality |
title_fullStr |
Interdecadal Linkage Between the Winter Northern Hemisphere Climate and Arctic Sea Ice of Diverse Location and Seasonality |
title_full_unstemmed |
Interdecadal Linkage Between the Winter Northern Hemisphere Climate and Arctic Sea Ice of Diverse Location and Seasonality |
title_sort |
interdecadal linkage between the winter northern hemisphere climate and arctic sea ice of diverse location and seasonality |
publisher |
Frontiers Media SA |
publishDate |
2021 |
url |
http://dx.doi.org/10.3389/feart.2021.758619 https://www.frontiersin.org/articles/10.3389/feart.2021.758619/full |
geographic |
Arctic Barents Sea Bering Sea Greenland Pacific |
geographic_facet |
Arctic Barents Sea Bering Sea Greenland Pacific |
genre |
Arctic Barents Sea Bering Sea Chukchi Greenland Kara-Laptev laptev North Atlantic North Atlantic oscillation Sea ice Siberia |
genre_facet |
Arctic Barents Sea Bering Sea Chukchi Greenland Kara-Laptev laptev North Atlantic North Atlantic oscillation Sea ice Siberia |
op_source |
Frontiers in Earth Science volume 9 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2021.758619 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
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1809760118338748416 |