Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics
The atmospheric response to Arctic sea ice loss remains a subject of much debate. Most studies have focused on the sea ice retreat in the Barents-Kara Seas and its troposphere-stratosphere influence. Here, we investigate the impact of large sea ice loss over the Chukchi-Bering Seas on the sudden str...
Published in: | npj Climate and Atmospheric Science |
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Online Access: | https://hdl.handle.net/11250/3027925 https://doi.org/10.1038/s41612-022-00296-w |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3027925 2023-05-15T15:05:28+02:00 Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics Zhang, Jiarong Orsolini, Yvan J. Limpasuvan, Varavut Ukita, Jinro 2022 application/pdf https://hdl.handle.net/11250/3027925 https://doi.org/10.1038/s41612-022-00296-w eng eng Nature Portfolio NILU - Norsk institutt for luftforskning: 121155 npj - Climate and Atmospheric Science. 2022, 5 (74), . urn:issn:2397-3722 https://hdl.handle.net/11250/3027925 https://doi.org/10.1038/s41612-022-00296-w cristin:2058794 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 5 npj Climate and Atmospheric Science Peer reviewed Journal article 2022 ftntnutrondheimi https://doi.org/10.1038/s41612-022-00296-w 2022-10-26T22:41:52Z The atmospheric response to Arctic sea ice loss remains a subject of much debate. Most studies have focused on the sea ice retreat in the Barents-Kara Seas and its troposphere-stratosphere influence. Here, we investigate the impact of large sea ice loss over the Chukchi-Bering Seas on the sudden stratospheric warming (SSW) phenomenon during the easterly phase of the Quasi-Biennial Oscillation through idealized large-ensemble experiments based on a global atmospheric model with a well-resolved stratosphere. Although culminating in autumn, the prescribed sea ice loss induces near-surface warming that persists into winter and deepens as the SSW develops. The resulting temperature contrasts foster a deep cyclonic circulation over the North Pacific, which elicits a strong upward wavenumber-2 activity into the stratosphere, reinforcing the climatological planetary wave pattern. While not affecting the SSW occurrence frequency, the amplified wave forcing in the stratosphere significantly increases the SSW duration and intensity, enhancing cold air outbreaks over the continents afterward. Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics publishedVersion Article in Journal/Newspaper Arctic Chukchi Sea ice NTNU Open Archive (Norwegian University of Science and Technology) Arctic Pacific npj Climate and Atmospheric Science 5 1 |
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Open Polar |
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NTNU Open Archive (Norwegian University of Science and Technology) |
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ftntnutrondheimi |
language |
English |
description |
The atmospheric response to Arctic sea ice loss remains a subject of much debate. Most studies have focused on the sea ice retreat in the Barents-Kara Seas and its troposphere-stratosphere influence. Here, we investigate the impact of large sea ice loss over the Chukchi-Bering Seas on the sudden stratospheric warming (SSW) phenomenon during the easterly phase of the Quasi-Biennial Oscillation through idealized large-ensemble experiments based on a global atmospheric model with a well-resolved stratosphere. Although culminating in autumn, the prescribed sea ice loss induces near-surface warming that persists into winter and deepens as the SSW develops. The resulting temperature contrasts foster a deep cyclonic circulation over the North Pacific, which elicits a strong upward wavenumber-2 activity into the stratosphere, reinforcing the climatological planetary wave pattern. While not affecting the SSW occurrence frequency, the amplified wave forcing in the stratosphere significantly increases the SSW duration and intensity, enhancing cold air outbreaks over the continents afterward. Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics publishedVersion |
format |
Article in Journal/Newspaper |
author |
Zhang, Jiarong Orsolini, Yvan J. Limpasuvan, Varavut Ukita, Jinro |
spellingShingle |
Zhang, Jiarong Orsolini, Yvan J. Limpasuvan, Varavut Ukita, Jinro Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics |
author_facet |
Zhang, Jiarong Orsolini, Yvan J. Limpasuvan, Varavut Ukita, Jinro |
author_sort |
Zhang, Jiarong |
title |
Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics |
title_short |
Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics |
title_full |
Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics |
title_fullStr |
Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics |
title_full_unstemmed |
Impact of the Pacific sector sea ice loss on the sudden stratospheric warming characteristics |
title_sort |
impact of the pacific sector sea ice loss on the sudden stratospheric warming characteristics |
publisher |
Nature Portfolio |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3027925 https://doi.org/10.1038/s41612-022-00296-w |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Chukchi Sea ice |
genre_facet |
Arctic Chukchi Sea ice |
op_source |
5 npj Climate and Atmospheric Science |
op_relation |
NILU - Norsk institutt for luftforskning: 121155 npj - Climate and Atmospheric Science. 2022, 5 (74), . urn:issn:2397-3722 https://hdl.handle.net/11250/3027925 https://doi.org/10.1038/s41612-022-00296-w cristin:2058794 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41612-022-00296-w |
container_title |
npj Climate and Atmospheric Science |
container_volume |
5 |
container_issue |
1 |
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1766337160642822144 |