Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century
Abstract With the accelerating mass loss of Antarctic ice sheets, the freshening of the Southern Ocean coastal oceans (SOc, seas around Antarctica) is gradually intensifying, which will reduce the formation of bottom water and weaken the meridional overturning circulation, thus having a significant...
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ftdoajarticles:oai:doaj.org/article:2081bf92a00e4f51a69c2a2b49e8803c 2023-05-15T13:52:54+02:00 Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century Xianliang L. Pan Bofeng F. Li Yutaka W. Watanabe 2022-01-01T00:00:00Z https://doi.org/10.1038/s41598-021-04231-6 https://doaj.org/article/2081bf92a00e4f51a69c2a2b49e8803c EN eng Nature Portfolio https://doi.org/10.1038/s41598-021-04231-6 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-04231-6 2045-2322 https://doaj.org/article/2081bf92a00e4f51a69c2a2b49e8803c Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022) Medicine R Science Q article 2022 ftdoajarticles https://doi.org/10.1038/s41598-021-04231-6 2022-12-30T20:28:14Z Abstract With the accelerating mass loss of Antarctic ice sheets, the freshening of the Southern Ocean coastal oceans (SOc, seas around Antarctica) is gradually intensifying, which will reduce the formation of bottom water and weaken the meridional overturning circulation, thus having a significant negative impact on the ocean’s role in regulating global climate. Due to the extreme environment of the Southern Ocean and the limitations of observational techniques, our understanding of the glacier-derived freshening of SOc is still vague. We developed a method that first provided us with an expansive understanding of glacier-derived freshening progress over the SOc. Applying this method to the observational data in the SOc from 1926 to 2016, revealed that the rate of glacier-derived freshwater input reached a maximum of 268 ± 134 Gt year−1 during the early twenty-first century. Our results indicate that during the same period, glacier melting accounted for 63%, 28%, and 92% of the total freshening occurred in the Atlantic, Indian, and Pacific sectors of the SOc, respectively. This suggests that the ice shelf basal melt in West Antarctica and the Antarctic Peninsula plays a dominant role in the freshening of the surrounding seas. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Southern Ocean West Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Southern Ocean The Antarctic Antarctic Peninsula West Antarctica Pacific Indian Scientific Reports 12 1 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Medicine R Science Q |
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Medicine R Science Q Xianliang L. Pan Bofeng F. Li Yutaka W. Watanabe Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century |
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Medicine R Science Q |
description |
Abstract With the accelerating mass loss of Antarctic ice sheets, the freshening of the Southern Ocean coastal oceans (SOc, seas around Antarctica) is gradually intensifying, which will reduce the formation of bottom water and weaken the meridional overturning circulation, thus having a significant negative impact on the ocean’s role in regulating global climate. Due to the extreme environment of the Southern Ocean and the limitations of observational techniques, our understanding of the glacier-derived freshening of SOc is still vague. We developed a method that first provided us with an expansive understanding of glacier-derived freshening progress over the SOc. Applying this method to the observational data in the SOc from 1926 to 2016, revealed that the rate of glacier-derived freshwater input reached a maximum of 268 ± 134 Gt year−1 during the early twenty-first century. Our results indicate that during the same period, glacier melting accounted for 63%, 28%, and 92% of the total freshening occurred in the Atlantic, Indian, and Pacific sectors of the SOc, respectively. This suggests that the ice shelf basal melt in West Antarctica and the Antarctic Peninsula plays a dominant role in the freshening of the surrounding seas. |
format |
Article in Journal/Newspaper |
author |
Xianliang L. Pan Bofeng F. Li Yutaka W. Watanabe |
author_facet |
Xianliang L. Pan Bofeng F. Li Yutaka W. Watanabe |
author_sort |
Xianliang L. Pan |
title |
Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century |
title_short |
Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century |
title_full |
Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century |
title_fullStr |
Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century |
title_full_unstemmed |
Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century |
title_sort |
intense ocean freshening from melting glacier around the antarctica during early twenty-first century |
publisher |
Nature Portfolio |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41598-021-04231-6 https://doaj.org/article/2081bf92a00e4f51a69c2a2b49e8803c |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula West Antarctica Pacific Indian |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula West Antarctica Pacific Indian |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Southern Ocean West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Southern Ocean West Antarctica |
op_source |
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022) |
op_relation |
https://doi.org/10.1038/s41598-021-04231-6 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-04231-6 2045-2322 https://doaj.org/article/2081bf92a00e4f51a69c2a2b49e8803c |
op_doi |
https://doi.org/10.1038/s41598-021-04231-6 |
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Scientific Reports |
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12 |
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1 |
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1766257755349319680 |