Antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation
Antarctic ice mass balance is determined by precipitation and ice discharge, and understanding their relative contributions to contemporary Antarctic ice mass change is important to project future ice mass loss and resulting sea level rise. There has been evidence that anomalous precipitation affect...
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ftseoulnuniv:oai:s-space.snu.ac.kr:10371/194986 2023-08-15T12:38:19+02:00 Antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation Kim, Byeong-Hoon Seo, Ki-Weon Eom, Jooyoung Chen, Jianli Wilson, Clark R. Seo, Ki-Weon 2020-12-24 https://hdl.handle.net/10371/194986 https://doi.org/10.1038/s41598-020-77403-5 영어 unknown Nature Publishing Group Scientific Reports, Vol.10 No.1, p. 20366 2045-2322 https://hdl.handle.net/10371/194986 doi:10.1038/s41598-020-77403-5 000595845100009 2-s2.0-85096434778 119829 ACCELERATION BALANCE TRENDS Article ART 2020 ftseoulnuniv https://doi.org/10.1038/s41598-020-77403-5 2023-07-21T00:37:57Z Antarctic ice mass balance is determined by precipitation and ice discharge, and understanding their relative contributions to contemporary Antarctic ice mass change is important to project future ice mass loss and resulting sea level rise. There has been evidence that anomalous precipitation affects Antarctic ice mass loss estimates, and thus the precipitation contribution should be understood and considered in future projections. In this study, we revisit changes in Antarctic ice mass over recent decades and examine precipitation contributions over this period. We show that accumulated (time-integrated) precipitation explains most inter-annual anomalies of Antarctic ice mass change during the GRACE period (2003-2017). From 1979 to 2017, accumulated Antarctic precipitation contributes to significant ice mass loss acceleration in the Pacific sector and deceleration in the Atlantic-Indian Sectors, forming a bi-polar spatial pattern. Principal component analysis reveals that such a bi-polar pattern is likely modulated by the Southern Annular Mode (SAM). We also find that recent ice mass loss acceleration in 2007 is related to a variation in precipitation accumulation. Overall ice discharge has accelerated at a steady rate since 1992, but has not seen a recent abrupt increase. Y 1 Article in Journal/Newspaper Antarc* Antarctic Seoul National University: S-Space Antarctic Indian Pacific Scientific Reports 10 1 |
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Open Polar |
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Seoul National University: S-Space |
op_collection_id |
ftseoulnuniv |
language |
unknown |
topic |
ACCELERATION BALANCE TRENDS |
spellingShingle |
ACCELERATION BALANCE TRENDS Kim, Byeong-Hoon Seo, Ki-Weon Eom, Jooyoung Chen, Jianli Wilson, Clark R. Antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation |
topic_facet |
ACCELERATION BALANCE TRENDS |
description |
Antarctic ice mass balance is determined by precipitation and ice discharge, and understanding their relative contributions to contemporary Antarctic ice mass change is important to project future ice mass loss and resulting sea level rise. There has been evidence that anomalous precipitation affects Antarctic ice mass loss estimates, and thus the precipitation contribution should be understood and considered in future projections. In this study, we revisit changes in Antarctic ice mass over recent decades and examine precipitation contributions over this period. We show that accumulated (time-integrated) precipitation explains most inter-annual anomalies of Antarctic ice mass change during the GRACE period (2003-2017). From 1979 to 2017, accumulated Antarctic precipitation contributes to significant ice mass loss acceleration in the Pacific sector and deceleration in the Atlantic-Indian Sectors, forming a bi-polar spatial pattern. Principal component analysis reveals that such a bi-polar pattern is likely modulated by the Southern Annular Mode (SAM). We also find that recent ice mass loss acceleration in 2007 is related to a variation in precipitation accumulation. Overall ice discharge has accelerated at a steady rate since 1992, but has not seen a recent abrupt increase. Y 1 |
author2 |
Seo, Ki-Weon |
format |
Article in Journal/Newspaper |
author |
Kim, Byeong-Hoon Seo, Ki-Weon Eom, Jooyoung Chen, Jianli Wilson, Clark R. |
author_facet |
Kim, Byeong-Hoon Seo, Ki-Weon Eom, Jooyoung Chen, Jianli Wilson, Clark R. |
author_sort |
Kim, Byeong-Hoon |
title |
Antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation |
title_short |
Antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation |
title_full |
Antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation |
title_fullStr |
Antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation |
title_full_unstemmed |
Antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation |
title_sort |
antarctic ice mass variations from 1979 to 2017 driven by anomalous precipitation accumulation |
publisher |
Nature Publishing Group |
publishDate |
2020 |
url |
https://hdl.handle.net/10371/194986 https://doi.org/10.1038/s41598-020-77403-5 |
geographic |
Antarctic Indian Pacific |
geographic_facet |
Antarctic Indian Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Scientific Reports, Vol.10 No.1, p. 20366 2045-2322 https://hdl.handle.net/10371/194986 doi:10.1038/s41598-020-77403-5 000595845100009 2-s2.0-85096434778 119829 |
op_doi |
https://doi.org/10.1038/s41598-020-77403-5 |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
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1774299625750003712 |