Dynamic thinning of glaciers on the Southern Antarctic Peninsula
Growing evidence has demonstrated the importance of ice shelf buttressing on the inland grounded ice, especially if it is resting on bedrock below sea level. Much of the Southern Antarctic Peninsula satisfies this condition and also possesses a bed slope that deepens inland. Such ice sheet geometry...
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AMER ASSOC ADVANCEMENT SCIENCE
2015
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Online Access: | https://epic.awi.de/id/eprint/37998/ http://www.sciencemag.org/content/348/6237/899.abstract https://hdl.handle.net/10013/epic.45616 |
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ftawi:oai:epic.awi.de:37998 2024-09-15T17:45:09+00:00 Dynamic thinning of glaciers on the Southern Antarctic Peninsula Wouters, B. Martin-Español, A. Helm, V. Flament, T. van Wessem, J. M. Ligtenberg, S. R. M. van den Broeke, M. R. Bamber, J. L. 2015-05-22 https://epic.awi.de/id/eprint/37998/ http://www.sciencemag.org/content/348/6237/899.abstract https://hdl.handle.net/10013/epic.45616 unknown AMER ASSOC ADVANCEMENT SCIENCE Wouters, B. , Martin-Español, A. , Helm, V. orcid:0000-0001-7788-9328 , Flament, T. , van Wessem, J. M. , Ligtenberg, S. R. M. , van den Broeke, M. R. and Bamber, J. L. (2015) Dynamic thinning of glaciers on the Southern Antarctic Peninsula , Science, 348 (6237), pp. 899-903 . doi:10.1126/science.aaa5727 <https://doi.org/10.1126/science.aaa5727> , hdl:10013/epic.45616 EPIC3Science, AMER ASSOC ADVANCEMENT SCIENCE, 348(6237), pp. 899-903, ISSN: 0036-8075 Article isiRev 2015 ftawi https://doi.org/10.1126/science.aaa5727 2024-06-24T04:12:21Z Growing evidence has demonstrated the importance of ice shelf buttressing on the inland grounded ice, especially if it is resting on bedrock below sea level. Much of the Southern Antarctic Peninsula satisfies this condition and also possesses a bed slope that deepens inland. Such ice sheet geometry is potentially unstable. We use satellite altimetry and gravity observations to show that a major portion of the region has, since 2009, destabilized. Ice mass loss of the marine-terminating glaciers has rapidly accelerated from close to balance in the 2000s to a sustained rate of –56 ± 8 gigatons per year, constituting a major fraction of Antarctica’s contribution to rising sea level. The widespread, simultaneous nature of the acceleration, in the absence of a persistent atmospheric forcing, points to an oceanic driving mechanism. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Science 348 6237 899 903 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Growing evidence has demonstrated the importance of ice shelf buttressing on the inland grounded ice, especially if it is resting on bedrock below sea level. Much of the Southern Antarctic Peninsula satisfies this condition and also possesses a bed slope that deepens inland. Such ice sheet geometry is potentially unstable. We use satellite altimetry and gravity observations to show that a major portion of the region has, since 2009, destabilized. Ice mass loss of the marine-terminating glaciers has rapidly accelerated from close to balance in the 2000s to a sustained rate of –56 ± 8 gigatons per year, constituting a major fraction of Antarctica’s contribution to rising sea level. The widespread, simultaneous nature of the acceleration, in the absence of a persistent atmospheric forcing, points to an oceanic driving mechanism. |
format |
Article in Journal/Newspaper |
author |
Wouters, B. Martin-Español, A. Helm, V. Flament, T. van Wessem, J. M. Ligtenberg, S. R. M. van den Broeke, M. R. Bamber, J. L. |
spellingShingle |
Wouters, B. Martin-Español, A. Helm, V. Flament, T. van Wessem, J. M. Ligtenberg, S. R. M. van den Broeke, M. R. Bamber, J. L. Dynamic thinning of glaciers on the Southern Antarctic Peninsula |
author_facet |
Wouters, B. Martin-Español, A. Helm, V. Flament, T. van Wessem, J. M. Ligtenberg, S. R. M. van den Broeke, M. R. Bamber, J. L. |
author_sort |
Wouters, B. |
title |
Dynamic thinning of glaciers on the Southern Antarctic Peninsula |
title_short |
Dynamic thinning of glaciers on the Southern Antarctic Peninsula |
title_full |
Dynamic thinning of glaciers on the Southern Antarctic Peninsula |
title_fullStr |
Dynamic thinning of glaciers on the Southern Antarctic Peninsula |
title_full_unstemmed |
Dynamic thinning of glaciers on the Southern Antarctic Peninsula |
title_sort |
dynamic thinning of glaciers on the southern antarctic peninsula |
publisher |
AMER ASSOC ADVANCEMENT SCIENCE |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/37998/ http://www.sciencemag.org/content/348/6237/899.abstract https://hdl.handle.net/10013/epic.45616 |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf |
op_source |
EPIC3Science, AMER ASSOC ADVANCEMENT SCIENCE, 348(6237), pp. 899-903, ISSN: 0036-8075 |
op_relation |
Wouters, B. , Martin-Español, A. , Helm, V. orcid:0000-0001-7788-9328 , Flament, T. , van Wessem, J. M. , Ligtenberg, S. R. M. , van den Broeke, M. R. and Bamber, J. L. (2015) Dynamic thinning of glaciers on the Southern Antarctic Peninsula , Science, 348 (6237), pp. 899-903 . doi:10.1126/science.aaa5727 <https://doi.org/10.1126/science.aaa5727> , hdl:10013/epic.45616 |
op_doi |
https://doi.org/10.1126/science.aaa5727 |
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Science |
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348 |
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6237 |
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899 |
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903 |
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1810492886041493504 |