Synoptic-scale variability in the Beaufort High and spring ice opening in the Beaufort Sea
This study examines the role of synoptic-scale variability in the Beaufort High in spring ice opening in the Beaufort Sea using data over the 2000–2019 period. A few days before ice opening in spring, the Beaufort High begins to strengthen, deform, and shift eastward from the Chukchi Sea to the west...
Published in: | Frontiers in Marine Science |
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2022
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Online Access: | http://dx.doi.org/10.3389/fmars.2022.929209 https://www.frontiersin.org/articles/10.3389/fmars.2022.929209/full |
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crfrontiers:10.3389/fmars.2022.929209 2024-06-23T07:45:14+00:00 Synoptic-scale variability in the Beaufort High and spring ice opening in the Beaufort Sea Huang, Yingqi Bai, Xuezhi Leng, Hengling National Key Research and Development Program of China National Natural Science Foundation of China 2022 http://dx.doi.org/10.3389/fmars.2022.929209 https://www.frontiersin.org/articles/10.3389/fmars.2022.929209/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 9 ISSN 2296-7745 journal-article 2022 crfrontiers https://doi.org/10.3389/fmars.2022.929209 2024-06-11T04:06:50Z This study examines the role of synoptic-scale variability in the Beaufort High in spring ice opening in the Beaufort Sea using data over the 2000–2019 period. A few days before ice opening in spring, the Beaufort High begins to strengthen, deform, and shift eastward from the Chukchi Sea to the western Canadian Arctic Archipelago due to warming in eastern Siberia, and the Aleutian Low is also enhanced. The pressure gradient between the Aleutian Low and the Beaufort High increases rapidly, promoting strong southeasterly winds. As the Beaufort High shifts eastward, the anticyclonic sea ice circulation in the Beaufort Sea tends to be an asymmetrical gyre; as a result, sea ice in the eastern Beaufort Sea is exported toward the western Beaufort Sea without supplementation from the north. Sea ice volume budget analysis indicates that when southeasterly winds are prevailing, wind-forced ice advection and divergence dominate the ice opening in the southeastern Beaufort Sea. Although both the basal and lateral melting are promoted during the ice opening, their contributions to the reduction of ice volume are negligible. Article in Journal/Newspaper aleutian low Arctic Archipelago Arctic Beaufort Sea Canadian Arctic Archipelago Chukchi Chukchi Sea Sea ice Siberia Frontiers (Publisher) Arctic Canadian Arctic Archipelago Chukchi Sea Frontiers in Marine Science 9 |
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This study examines the role of synoptic-scale variability in the Beaufort High in spring ice opening in the Beaufort Sea using data over the 2000–2019 period. A few days before ice opening in spring, the Beaufort High begins to strengthen, deform, and shift eastward from the Chukchi Sea to the western Canadian Arctic Archipelago due to warming in eastern Siberia, and the Aleutian Low is also enhanced. The pressure gradient between the Aleutian Low and the Beaufort High increases rapidly, promoting strong southeasterly winds. As the Beaufort High shifts eastward, the anticyclonic sea ice circulation in the Beaufort Sea tends to be an asymmetrical gyre; as a result, sea ice in the eastern Beaufort Sea is exported toward the western Beaufort Sea without supplementation from the north. Sea ice volume budget analysis indicates that when southeasterly winds are prevailing, wind-forced ice advection and divergence dominate the ice opening in the southeastern Beaufort Sea. Although both the basal and lateral melting are promoted during the ice opening, their contributions to the reduction of ice volume are negligible. |
author2 |
National Key Research and Development Program of China National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Huang, Yingqi Bai, Xuezhi Leng, Hengling |
spellingShingle |
Huang, Yingqi Bai, Xuezhi Leng, Hengling Synoptic-scale variability in the Beaufort High and spring ice opening in the Beaufort Sea |
author_facet |
Huang, Yingqi Bai, Xuezhi Leng, Hengling |
author_sort |
Huang, Yingqi |
title |
Synoptic-scale variability in the Beaufort High and spring ice opening in the Beaufort Sea |
title_short |
Synoptic-scale variability in the Beaufort High and spring ice opening in the Beaufort Sea |
title_full |
Synoptic-scale variability in the Beaufort High and spring ice opening in the Beaufort Sea |
title_fullStr |
Synoptic-scale variability in the Beaufort High and spring ice opening in the Beaufort Sea |
title_full_unstemmed |
Synoptic-scale variability in the Beaufort High and spring ice opening in the Beaufort Sea |
title_sort |
synoptic-scale variability in the beaufort high and spring ice opening in the beaufort sea |
publisher |
Frontiers Media SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/fmars.2022.929209 https://www.frontiersin.org/articles/10.3389/fmars.2022.929209/full |
geographic |
Arctic Canadian Arctic Archipelago Chukchi Sea |
geographic_facet |
Arctic Canadian Arctic Archipelago Chukchi Sea |
genre |
aleutian low Arctic Archipelago Arctic Beaufort Sea Canadian Arctic Archipelago Chukchi Chukchi Sea Sea ice Siberia |
genre_facet |
aleutian low Arctic Archipelago Arctic Beaufort Sea Canadian Arctic Archipelago Chukchi Chukchi Sea Sea ice Siberia |
op_source |
Frontiers in Marine Science volume 9 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2022.929209 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
_version_ |
1802638417444470784 |