Contribution of the Greenland Ice Sheet to sea level over the next millennium
The Greenland Ice Sheet holds 7.2 m of sea level equivalent and in recent decades, rising temperatures have led to accelerated mass loss. Current ice margin recession is led by the retreat of outlet glaciers, large rivers of ice ending in narrow fjords that drain the interior. We pair an outlet glac...
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ftpubmed:oai:pubmedcentral.nih.gov:6584365 2023-05-15T16:21:06+02:00 Contribution of the Greenland Ice Sheet to sea level over the next millennium Aschwanden, Andy Fahnestock, Mark A. Truffer, Martin Brinkerhoff, Douglas J. Hock, Regine Khroulev, Constantine Mottram, Ruth Khan, S. Abbas 2019-06-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6584365/ https://doi.org/10.1126/sciadv.aav9396 en eng American Association for the Advancement of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6584365/ http://dx.doi.org/10.1126/sciadv.aav9396 Copyright © 2019 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 NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. CC-BY-NC Research Articles Text 2019 ftpubmed https://doi.org/10.1126/sciadv.aav9396 2019-06-23T00:39:46Z The Greenland Ice Sheet holds 7.2 m of sea level equivalent and in recent decades, rising temperatures have led to accelerated mass loss. Current ice margin recession is led by the retreat of outlet glaciers, large rivers of ice ending in narrow fjords that drain the interior. We pair an outlet glacier–resolving ice sheet model with a comprehensive uncertainty quantification to estimate Greenland’s contribution to sea level over the next millennium. We find that Greenland could contribute 5 to 33 cm to sea level by 2100, with discharge from outlet glaciers contributing 8 to 45% of total mass loss. Our analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, whereas uncertainties in calving and frontal melt play a minor role. We project that Greenland will very likely become ice free within a millennium without substantial reductions in greenhouse gas emissions. Text glacier Greenland Ice Sheet PubMed Central (PMC) Greenland Science Advances 5 6 eaav9396 |
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Research Articles |
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Research Articles Aschwanden, Andy Fahnestock, Mark A. Truffer, Martin Brinkerhoff, Douglas J. Hock, Regine Khroulev, Constantine Mottram, Ruth Khan, S. Abbas Contribution of the Greenland Ice Sheet to sea level over the next millennium |
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Research Articles |
description |
The Greenland Ice Sheet holds 7.2 m of sea level equivalent and in recent decades, rising temperatures have led to accelerated mass loss. Current ice margin recession is led by the retreat of outlet glaciers, large rivers of ice ending in narrow fjords that drain the interior. We pair an outlet glacier–resolving ice sheet model with a comprehensive uncertainty quantification to estimate Greenland’s contribution to sea level over the next millennium. We find that Greenland could contribute 5 to 33 cm to sea level by 2100, with discharge from outlet glaciers contributing 8 to 45% of total mass loss. Our analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, whereas uncertainties in calving and frontal melt play a minor role. We project that Greenland will very likely become ice free within a millennium without substantial reductions in greenhouse gas emissions. |
format |
Text |
author |
Aschwanden, Andy Fahnestock, Mark A. Truffer, Martin Brinkerhoff, Douglas J. Hock, Regine Khroulev, Constantine Mottram, Ruth Khan, S. Abbas |
author_facet |
Aschwanden, Andy Fahnestock, Mark A. Truffer, Martin Brinkerhoff, Douglas J. Hock, Regine Khroulev, Constantine Mottram, Ruth Khan, S. Abbas |
author_sort |
Aschwanden, Andy |
title |
Contribution of the Greenland Ice Sheet to sea level over the next millennium |
title_short |
Contribution of the Greenland Ice Sheet to sea level over the next millennium |
title_full |
Contribution of the Greenland Ice Sheet to sea level over the next millennium |
title_fullStr |
Contribution of the Greenland Ice Sheet to sea level over the next millennium |
title_full_unstemmed |
Contribution of the Greenland Ice Sheet to sea level over the next millennium |
title_sort |
contribution of the greenland ice sheet to sea level over the next millennium |
publisher |
American Association for the Advancement of Science |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6584365/ https://doi.org/10.1126/sciadv.aav9396 |
geographic |
Greenland |
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Greenland |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6584365/ http://dx.doi.org/10.1126/sciadv.aav9396 |
op_rights |
Copyright © 2019 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 NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
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CC-BY-NC |
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https://doi.org/10.1126/sciadv.aav9396 |
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Science Advances |
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5 |
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