Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003–2013
Recent observations from satellite gravimetry (the Gravity Recovery and Climate Experiment (GRACE) mission) suggest an acceleration of ice mass loss from the Antarctic Ice Sheet (AIS). The contribution of surface mass balance changes (due to variable precipitation) is compared with GRACE‐derived mas...
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ftpubmed:oai:pubmedcentral.nih.gov:5032899 2023-05-15T13:45:24+02:00 Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003–2013 Seo, Ki‐Weon Wilson, Clark R. Scambos, Ted Kim, Baek‐Min Waliser, Duane E. Tian, Baijun Kim, Byeong‐Hoon Eom, Jooyoung 2015-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5032899/ https://doi.org/10.1002/2014JB011755 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5032899/ http://dx.doi.org/10.1002/2014JB011755 ©2015. The Authors. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs (http://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. CC-BY-NC-ND Research Articles Text 2015 ftpubmed https://doi.org/10.1002/2014JB011755 2016-10-09T00:06:03Z Recent observations from satellite gravimetry (the Gravity Recovery and Climate Experiment (GRACE) mission) suggest an acceleration of ice mass loss from the Antarctic Ice Sheet (AIS). The contribution of surface mass balance changes (due to variable precipitation) is compared with GRACE‐derived mass loss acceleration by assessing the estimated contribution of snow mass from meteorological reanalysis data. We find that over much of the continent, the acceleration can be explained by precipitation anomalies. However, on the Antarctic Peninsula and other parts of West Antarctica, mass changes are not explained by precipitation and are likely associated with ice discharge rate increases. The total apparent GRACE acceleration over all of the AIS between 2003 and 2013 is −13.6 ± 7.2 Gt/yr2. Of this total, we find that the surface mass balance component is −8.2 ± 2.0 Gt/yr2. However, the GRACE estimate appears to contain errors arising from the atmospheric pressure fields used to remove air mass effects. The estimated acceleration error from this effect is about 9.8 ± 5.8 Gt/yr2. Correcting for this yields an ice discharge acceleration of −15.1 ± 6.5 Gt/yr2. Text Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet West Antarctica PubMed Central (PMC) Antarctic Antarctic Peninsula The Antarctic West Antarctica Journal of Geophysical Research: Solid Earth 120 5 3617 3627 |
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Research Articles Seo, Ki‐Weon Wilson, Clark R. Scambos, Ted Kim, Baek‐Min Waliser, Duane E. Tian, Baijun Kim, Byeong‐Hoon Eom, Jooyoung Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003–2013 |
topic_facet |
Research Articles |
description |
Recent observations from satellite gravimetry (the Gravity Recovery and Climate Experiment (GRACE) mission) suggest an acceleration of ice mass loss from the Antarctic Ice Sheet (AIS). The contribution of surface mass balance changes (due to variable precipitation) is compared with GRACE‐derived mass loss acceleration by assessing the estimated contribution of snow mass from meteorological reanalysis data. We find that over much of the continent, the acceleration can be explained by precipitation anomalies. However, on the Antarctic Peninsula and other parts of West Antarctica, mass changes are not explained by precipitation and are likely associated with ice discharge rate increases. The total apparent GRACE acceleration over all of the AIS between 2003 and 2013 is −13.6 ± 7.2 Gt/yr2. Of this total, we find that the surface mass balance component is −8.2 ± 2.0 Gt/yr2. However, the GRACE estimate appears to contain errors arising from the atmospheric pressure fields used to remove air mass effects. The estimated acceleration error from this effect is about 9.8 ± 5.8 Gt/yr2. Correcting for this yields an ice discharge acceleration of −15.1 ± 6.5 Gt/yr2. |
format |
Text |
author |
Seo, Ki‐Weon Wilson, Clark R. Scambos, Ted Kim, Baek‐Min Waliser, Duane E. Tian, Baijun Kim, Byeong‐Hoon Eom, Jooyoung |
author_facet |
Seo, Ki‐Weon Wilson, Clark R. Scambos, Ted Kim, Baek‐Min Waliser, Duane E. Tian, Baijun Kim, Byeong‐Hoon Eom, Jooyoung |
author_sort |
Seo, Ki‐Weon |
title |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003–2013 |
title_short |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003–2013 |
title_full |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003–2013 |
title_fullStr |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003–2013 |
title_full_unstemmed |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003–2013 |
title_sort |
surface mass balance contributions to acceleration of antarctic ice mass loss during 2003–2013 |
publisher |
John Wiley and Sons Inc. |
publishDate |
2015 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5032899/ https://doi.org/10.1002/2014JB011755 |
geographic |
Antarctic Antarctic Peninsula The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet West Antarctica |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5032899/ http://dx.doi.org/10.1002/2014JB011755 |
op_rights |
©2015. The Authors. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs (http://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1002/2014JB011755 |
container_title |
Journal of Geophysical Research: Solid Earth |
container_volume |
120 |
container_issue |
5 |
container_start_page |
3617 |
op_container_end_page |
3627 |
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1766223761417175040 |