Ocean-induced melt volume directly paces ice loss from Pine Island Glacier
The spatial distribution of ocean-induced melting beneath buttressing ice shelves is often cited as an important factor controlling Antarctica’s sea-level contribution. Using numerical simulations, we investigate the relative sensitivity of grounded-ice loss to the spatial distribution and overall v...
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ftpubmed:oai:pubmedcentral.nih.gov:8535793 2023-05-15T13:54:17+02:00 Ocean-induced melt volume directly paces ice loss from Pine Island Glacier Joughin, Ian Shapero, Daniel Dutrieux, Pierre Smith, Ben 2021-10-22 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8535793/ http://www.ncbi.nlm.nih.gov/pubmed/34678060 https://doi.org/10.1126/sciadv.abi5738 en eng American Association for the Advancement of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8535793/ http://www.ncbi.nlm.nih.gov/pubmed/34678060 http://dx.doi.org/10.1126/sciadv.abi5738 Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. CC-BY Sci Adv Earth Environmental Ecological and Space Sciences Text 2021 ftpubmed https://doi.org/10.1126/sciadv.abi5738 2021-11-07T01:40:12Z The spatial distribution of ocean-induced melting beneath buttressing ice shelves is often cited as an important factor controlling Antarctica’s sea-level contribution. Using numerical simulations, we investigate the relative sensitivity of grounded-ice loss to the spatial distribution and overall volume of ice-shelf melt over two centuries. Contrary to earlier work, we find only minor sensitivity to melt distribution (<6%), with a linear dependence of ice loss on the total melt. Thus, less complex models that need not reproduce the detailed melt distribution may simplify the projection of future sea level. The linear sensitivity suggests a contribution of up to 5.1 cm from Pine Island Glacier over the next two centuries given anticipated levels of ocean warming, provided its ice shelf does not collapse because of other causes. Text Antarc* Ice Shelf Ice Shelves Pine Island Glacier PubMed Central (PMC) Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) Science Advances 7 43 |
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Open Polar |
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PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Earth Environmental Ecological and Space Sciences |
spellingShingle |
Earth Environmental Ecological and Space Sciences Joughin, Ian Shapero, Daniel Dutrieux, Pierre Smith, Ben Ocean-induced melt volume directly paces ice loss from Pine Island Glacier |
topic_facet |
Earth Environmental Ecological and Space Sciences |
description |
The spatial distribution of ocean-induced melting beneath buttressing ice shelves is often cited as an important factor controlling Antarctica’s sea-level contribution. Using numerical simulations, we investigate the relative sensitivity of grounded-ice loss to the spatial distribution and overall volume of ice-shelf melt over two centuries. Contrary to earlier work, we find only minor sensitivity to melt distribution (<6%), with a linear dependence of ice loss on the total melt. Thus, less complex models that need not reproduce the detailed melt distribution may simplify the projection of future sea level. The linear sensitivity suggests a contribution of up to 5.1 cm from Pine Island Glacier over the next two centuries given anticipated levels of ocean warming, provided its ice shelf does not collapse because of other causes. |
format |
Text |
author |
Joughin, Ian Shapero, Daniel Dutrieux, Pierre Smith, Ben |
author_facet |
Joughin, Ian Shapero, Daniel Dutrieux, Pierre Smith, Ben |
author_sort |
Joughin, Ian |
title |
Ocean-induced melt volume directly paces ice loss from Pine Island Glacier |
title_short |
Ocean-induced melt volume directly paces ice loss from Pine Island Glacier |
title_full |
Ocean-induced melt volume directly paces ice loss from Pine Island Glacier |
title_fullStr |
Ocean-induced melt volume directly paces ice loss from Pine Island Glacier |
title_full_unstemmed |
Ocean-induced melt volume directly paces ice loss from Pine Island Glacier |
title_sort |
ocean-induced melt volume directly paces ice loss from pine island glacier |
publisher |
American Association for the Advancement of Science |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8535793/ http://www.ncbi.nlm.nih.gov/pubmed/34678060 https://doi.org/10.1126/sciadv.abi5738 |
long_lat |
ENVELOPE(-101.000,-101.000,-75.000,-75.000) |
geographic |
Pine Island Glacier |
geographic_facet |
Pine Island Glacier |
genre |
Antarc* Ice Shelf Ice Shelves Pine Island Glacier |
genre_facet |
Antarc* Ice Shelf Ice Shelves Pine Island Glacier |
op_source |
Sci Adv |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8535793/ http://www.ncbi.nlm.nih.gov/pubmed/34678060 http://dx.doi.org/10.1126/sciadv.abi5738 |
op_rights |
Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
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CC-BY |
op_doi |
https://doi.org/10.1126/sciadv.abi5738 |
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Science Advances |
container_volume |
7 |
container_issue |
43 |
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