Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003-2013: ANTARCTIC ICE MASS LOSS ACCELERATION
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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Online Access: | http://www.osti.gov/servlets/purl/1623440 https://www.osti.gov/biblio/1623440 https://doi.org/10.1002/2014jb011755 |
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ftosti:oai:osti.gov:1623440 2023-07-30T03:59:18+02:00 Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003-2013: ANTARCTIC ICE MASS LOSS ACCELERATION Seo, Ki-Weon Wilson, Clark R. Scambos, Ted Kim, Baek-Min Waliser, Duane E. Tian, Baijun Kim, Byeong-Hoon Eom, Jooyoung 2022-01-03 application/pdf http://www.osti.gov/servlets/purl/1623440 https://www.osti.gov/biblio/1623440 https://doi.org/10.1002/2014jb011755 unknown http://www.osti.gov/servlets/purl/1623440 https://www.osti.gov/biblio/1623440 https://doi.org/10.1002/2014jb011755 doi:10.1002/2014jb011755 37 INORGANIC ORGANIC PHYSICAL AND ANALYTICAL CHEMISTRY 54 ENVIRONMENTAL SCIENCES 2022 ftosti https://doi.org/10.1002/2014jb011755 2023-07-11T09:42:11Z 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 . Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Antarctica Ice Sheet West Antarctica SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Antarctic The Antarctic Antarctic Peninsula West Antarctica Journal of Geophysical Research: Solid Earth 120 5 3617 3627 |
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Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
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37 INORGANIC ORGANIC PHYSICAL AND ANALYTICAL CHEMISTRY 54 ENVIRONMENTAL SCIENCES |
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37 INORGANIC ORGANIC PHYSICAL AND ANALYTICAL CHEMISTRY 54 ENVIRONMENTAL SCIENCES 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: ANTARCTIC ICE MASS LOSS ACCELERATION |
topic_facet |
37 INORGANIC ORGANIC PHYSICAL AND ANALYTICAL CHEMISTRY 54 ENVIRONMENTAL SCIENCES |
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 . |
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: ANTARCTIC ICE MASS LOSS ACCELERATION |
title_short |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003-2013: ANTARCTIC ICE MASS LOSS ACCELERATION |
title_full |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003-2013: ANTARCTIC ICE MASS LOSS ACCELERATION |
title_fullStr |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003-2013: ANTARCTIC ICE MASS LOSS ACCELERATION |
title_full_unstemmed |
Surface mass balance contributions to acceleration of Antarctic ice mass loss during 2003-2013: ANTARCTIC ICE MASS LOSS ACCELERATION |
title_sort |
surface mass balance contributions to acceleration of antarctic ice mass loss during 2003-2013: antarctic ice mass loss acceleration |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1623440 https://www.osti.gov/biblio/1623440 https://doi.org/10.1002/2014jb011755 |
geographic |
Antarctic The Antarctic Antarctic Peninsula West Antarctica |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula 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.osti.gov/servlets/purl/1623440 https://www.osti.gov/biblio/1623440 https://doi.org/10.1002/2014jb011755 doi:10.1002/2014jb011755 |
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 |
_version_ |
1772810045146267648 |