Future sea level change from Antarctica's Lambert-Amery glacial system
Future global mean sea level (GMSL) change is dependent on the complex response of the Antarctic ice sheet to ongoing changes and feedbacks in the climate system. The Lambert-Amery glacial system has been observed to be stable over the recent period yet is potentially at risk of rapid grounding line...
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Online Access: | https://doi.org/10.1002/2017GL073486 http://ecite.utas.edu.au/123692 |
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ftunivtasecite:oai:ecite.utas.edu.au:123692 2023-05-15T13:42:40+02:00 Future sea level change from Antarctica's Lambert-Amery glacial system Pittard, ML Galton-Fenzi, BK Watson, CS Roberts, JL 2017 application/pdf https://doi.org/10.1002/2017GL073486 http://ecite.utas.edu.au/123692 en eng Amer Geophysical Union http://ecite.utas.edu.au/123692/1/Pittard_et_al-2017-Geophysical_Research_Letters.pdf http://dx.doi.org/10.1002/2017GL073486 Pittard, ML and Galton-Fenzi, BK and Watson, CS and Roberts, JL, Future sea level change from Antarctica's Lambert-Amery glacial system, Geophysical Research Letters, 44, (14) pp. 7347-7355. ISSN 0094-8276 (2017) [Refereed Article] http://ecite.utas.edu.au/123692 Earth Sciences Physical geography and environmental geoscience Glaciology Refereed Article PeerReviewed 2017 ftunivtasecite https://doi.org/10.1002/2017GL073486 2022-08-29T22:17:14Z Future global mean sea level (GMSL) change is dependent on the complex response of the Antarctic ice sheet to ongoing changes and feedbacks in the climate system. The Lambert-Amery glacial system has been observed to be stable over the recent period yet is potentially at risk of rapid grounding line retreat and ice discharge given that a significant volume of its ice is grounded below sea level, making its future contribution to GMSL uncertain. Using a regional ice sheet model of the Lambert-Amery system, we find that under a range of future warming and extreme scenarios, the simulated grounding line remains stable and does not trigger rapid mass loss from grounding line retreat. This allows for increased future accumulation to exceed the mass loss from ice dynamical changes. We suggest that the Lambert-Amery glacial system will remain stable or gain ice mass and mitigate a portion of potential future sea level rise over the next 500years, with a range of +3.6 to −117.5mm GMSL equivalent. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet eCite UTAS (University of Tasmania) Antarctic The Antarctic Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Geophysical Research Letters 44 14 7347 7355 |
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Open Polar |
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eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical geography and environmental geoscience Glaciology |
spellingShingle |
Earth Sciences Physical geography and environmental geoscience Glaciology Pittard, ML Galton-Fenzi, BK Watson, CS Roberts, JL Future sea level change from Antarctica's Lambert-Amery glacial system |
topic_facet |
Earth Sciences Physical geography and environmental geoscience Glaciology |
description |
Future global mean sea level (GMSL) change is dependent on the complex response of the Antarctic ice sheet to ongoing changes and feedbacks in the climate system. The Lambert-Amery glacial system has been observed to be stable over the recent period yet is potentially at risk of rapid grounding line retreat and ice discharge given that a significant volume of its ice is grounded below sea level, making its future contribution to GMSL uncertain. Using a regional ice sheet model of the Lambert-Amery system, we find that under a range of future warming and extreme scenarios, the simulated grounding line remains stable and does not trigger rapid mass loss from grounding line retreat. This allows for increased future accumulation to exceed the mass loss from ice dynamical changes. We suggest that the Lambert-Amery glacial system will remain stable or gain ice mass and mitigate a portion of potential future sea level rise over the next 500years, with a range of +3.6 to −117.5mm GMSL equivalent. |
format |
Article in Journal/Newspaper |
author |
Pittard, ML Galton-Fenzi, BK Watson, CS Roberts, JL |
author_facet |
Pittard, ML Galton-Fenzi, BK Watson, CS Roberts, JL |
author_sort |
Pittard, ML |
title |
Future sea level change from Antarctica's Lambert-Amery glacial system |
title_short |
Future sea level change from Antarctica's Lambert-Amery glacial system |
title_full |
Future sea level change from Antarctica's Lambert-Amery glacial system |
title_fullStr |
Future sea level change from Antarctica's Lambert-Amery glacial system |
title_full_unstemmed |
Future sea level change from Antarctica's Lambert-Amery glacial system |
title_sort |
future sea level change from antarctica's lambert-amery glacial system |
publisher |
Amer Geophysical Union |
publishDate |
2017 |
url |
https://doi.org/10.1002/2017GL073486 http://ecite.utas.edu.au/123692 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) |
geographic |
Antarctic The Antarctic Amery |
geographic_facet |
Antarctic The Antarctic Amery |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_relation |
http://ecite.utas.edu.au/123692/1/Pittard_et_al-2017-Geophysical_Research_Letters.pdf http://dx.doi.org/10.1002/2017GL073486 Pittard, ML and Galton-Fenzi, BK and Watson, CS and Roberts, JL, Future sea level change from Antarctica's Lambert-Amery glacial system, Geophysical Research Letters, 44, (14) pp. 7347-7355. ISSN 0094-8276 (2017) [Refereed Article] http://ecite.utas.edu.au/123692 |
op_doi |
https://doi.org/10.1002/2017GL073486 |
container_title |
Geophysical Research Letters |
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44 |
container_issue |
14 |
container_start_page |
7347 |
op_container_end_page |
7355 |
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1766171049927376896 |