Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century
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...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/84295 2023-05-15T13:51:33+02:00 Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century Pan, Xianliang L. Li, Bofeng F. Watanabe, Yutaka W. http://hdl.handle.net/2115/84295 https://doi.org/10.1038/s41598-021-04231-6 eng eng Nature Portfolio http://hdl.handle.net/2115/84295 Scientific Reports, 12(1): 383 http://dx.doi.org/10.1038/s41598-021-04231-6 452 article fthokunivhus https://doi.org/10.1038/s41598-021-04231-6 2022-11-18T01:06:51Z 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 Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic Southern Ocean The Antarctic Antarctic Peninsula West Antarctica Pacific Indian Scientific Reports 12 1 |
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Open Polar |
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Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
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fthokunivhus |
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English |
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452 Pan, Xianliang L. Li, Bofeng F. Watanabe, Yutaka W. Intense ocean freshening from melting glacier around the Antarctica during early twenty-first century |
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452 |
description |
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 |
Pan, Xianliang L. Li, Bofeng F. Watanabe, Yutaka W. |
author_facet |
Pan, Xianliang L. Li, Bofeng F. Watanabe, Yutaka W. |
author_sort |
Pan, Xianliang L. |
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 |
url |
http://hdl.handle.net/2115/84295 https://doi.org/10.1038/s41598-021-04231-6 |
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_relation |
http://hdl.handle.net/2115/84295 Scientific Reports, 12(1): 383 http://dx.doi.org/10.1038/s41598-021-04231-6 |
op_doi |
https://doi.org/10.1038/s41598-021-04231-6 |
container_title |
Scientific Reports |
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12 |
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1 |
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1766255460908793856 |