Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean
Abstract In recent years, as the Arctic Ocean’s warming trend has accelerated, there has been increasing attention on the process of Atlantification in the Arctic Ocean. This study focused on the Arctic Atlantic inflow zone (AAZ) as its research area. Multi-source reanalysis data and in-situ Argo fl...
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crioppubl:10.1088/1748-9326/ad0518 2024-06-02T08:00:19+00:00 Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean Liu, Yujun He, Yijun Practice Innovation Program of Jiangsu Province Research and Development Program of China 2023 http://dx.doi.org/10.1088/1748-9326/ad0518 https://iopscience.iop.org/article/10.1088/1748-9326/ad0518 https://iopscience.iop.org/article/10.1088/1748-9326/ad0518/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 18, issue 11, page 114049 ISSN 1748-9326 journal-article 2023 crioppubl https://doi.org/10.1088/1748-9326/ad0518 2024-05-07T13:59:44Z Abstract In recent years, as the Arctic Ocean’s warming trend has accelerated, there has been increasing attention on the process of Atlantification in the Arctic Ocean. This study focused on the Arctic Atlantic inflow zone (AAZ) as its research area. Multi-source reanalysis data and in-situ Argo float data were utilized to detect Arctic strong cyclones (ASCs) in the AAZ and analyze the resulting changes in the upper ocean. The findings reveal that during the cold season (October to March), influenced by ASCs’ intensity, frequency, tracks, and the concurrent weakening of ocean stratification, these cyclones can disrupt the cold halocline layer through mechanisms such as mixing and Ekman pumping. This process facilitates the transport of heat from the deep, warm and saline Atlantic Water within the ocean to the subsurface layers. Concurrently, ASCs during the cold season can enhance the process of Atlantification in the Arctic Ocean by intensifying the intrusion of the Barents Sea Branch. Additionally, the attenuation of oceanic stratification during ASCs is primarily driven by changes in salinity, particularly above the 100 m. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea IOP Publishing Arctic Arctic Ocean Barents Sea Environmental Research Letters 18 11 114049 |
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IOP Publishing |
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Abstract In recent years, as the Arctic Ocean’s warming trend has accelerated, there has been increasing attention on the process of Atlantification in the Arctic Ocean. This study focused on the Arctic Atlantic inflow zone (AAZ) as its research area. Multi-source reanalysis data and in-situ Argo float data were utilized to detect Arctic strong cyclones (ASCs) in the AAZ and analyze the resulting changes in the upper ocean. The findings reveal that during the cold season (October to March), influenced by ASCs’ intensity, frequency, tracks, and the concurrent weakening of ocean stratification, these cyclones can disrupt the cold halocline layer through mechanisms such as mixing and Ekman pumping. This process facilitates the transport of heat from the deep, warm and saline Atlantic Water within the ocean to the subsurface layers. Concurrently, ASCs during the cold season can enhance the process of Atlantification in the Arctic Ocean by intensifying the intrusion of the Barents Sea Branch. Additionally, the attenuation of oceanic stratification during ASCs is primarily driven by changes in salinity, particularly above the 100 m. |
author2 |
Practice Innovation Program of Jiangsu Province Research and Development Program of China |
format |
Article in Journal/Newspaper |
author |
Liu, Yujun He, Yijun |
spellingShingle |
Liu, Yujun He, Yijun Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean |
author_facet |
Liu, Yujun He, Yijun |
author_sort |
Liu, Yujun |
title |
Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean |
title_short |
Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean |
title_full |
Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean |
title_fullStr |
Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean |
title_full_unstemmed |
Cold season Arctic strong cyclones enhance Atlantification of the Arctic Ocean |
title_sort |
cold season arctic strong cyclones enhance atlantification of the arctic ocean |
publisher |
IOP Publishing |
publishDate |
2023 |
url |
http://dx.doi.org/10.1088/1748-9326/ad0518 https://iopscience.iop.org/article/10.1088/1748-9326/ad0518 https://iopscience.iop.org/article/10.1088/1748-9326/ad0518/pdf |
geographic |
Arctic Arctic Ocean Barents Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea |
genre |
Arctic Arctic Ocean Barents Sea |
genre_facet |
Arctic Arctic Ocean Barents Sea |
op_source |
Environmental Research Letters volume 18, issue 11, page 114049 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/ad0518 |
container_title |
Environmental Research Letters |
container_volume |
18 |
container_issue |
11 |
container_start_page |
114049 |
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1800744308845838336 |