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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ftpubmed:oai:pubmedcentral.nih.gov:8748732 2023-05-15T13:44:21+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. 2022-01-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8748732/ http://www.ncbi.nlm.nih.gov/pubmed/35013425 https://doi.org/10.1038/s41598-021-04231-6 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8748732/ http://www.ncbi.nlm.nih.gov/pubmed/35013425 http://dx.doi.org/10.1038/s41598-021-04231-6 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Sci Rep Article Text 2022 ftpubmed https://doi.org/10.1038/s41598-021-04231-6 2022-01-16T01:50:21Z 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. Text Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Southern Ocean West Antarctica PubMed Central (PMC) Antarctic Antarctic Peninsula Indian Pacific Southern Ocean The Antarctic West Antarctica Scientific Reports 12 1 |
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Article 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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Article |
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 |
Text |
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 Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8748732/ http://www.ncbi.nlm.nih.gov/pubmed/35013425 https://doi.org/10.1038/s41598-021-04231-6 |
geographic |
Antarctic Antarctic Peninsula Indian Pacific Southern Ocean The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Indian Pacific Southern Ocean The Antarctic West Antarctica |
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 |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8748732/ http://www.ncbi.nlm.nih.gov/pubmed/35013425 http://dx.doi.org/10.1038/s41598-021-04231-6 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-04231-6 |
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