Centennial response of Greenland's three largest outlet glaciers
The Greenland Ice Sheet is the largest land ice contributor to sea level rise. This will continue in the future but at an uncertain rate and observational estimates are limited to the last few decades. Understanding the long-term glacier response to external forcing is key to improving projections....
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ftzenodo:oai:zenodo.org:7347812 2024-09-15T18:07:42+00:00 Centennial response of Greenland's three largest outlet glaciers Khan. Shfaqat A Bjørk, Anders A Bamber, Jonathan L Morlighem, Mathieu Bevis, Michael Kjær, Kurt H Mouginot, Jérémie Løkkegaard, Anja Holland, David M Aschwanden, Andy Zhang, Bao Helm, Veit Korsgaard, Niels J Colgan, William Larsen, Nicolaj K Liu, Lin Hansen, Karina Barletta, Valentina Dahl-Jensen, Trine S Søndergaard, Anne S Csatho, Beata M Sasgen, Ingo Box, Jason Schenk, Toni 2020-11-17 https://doi.org/10.1038/s41467-020-19580-5 unknown Zenodo https://zenodo.org/communities/globalmass https://zenodo.org/communities/eu https://doi.org/10.1038/s41467-020-19580-5 oai:zenodo.org:7347812 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode info:eu-repo/semantics/article 2020 ftzenodo https://doi.org/10.1038/s41467-020-19580-5 2024-07-26T04:56:55Z The Greenland Ice Sheet is the largest land ice contributor to sea level rise. This will continue in the future but at an uncertain rate and observational estimates are limited to the last few decades. Understanding the long-term glacier response to external forcing is key to improving projections. Here we use historical photographs to calculate ice loss from 1880–2012 for Jakobshavn, Helheim, and Kangerlussuaq glacier. We estimate ice loss corresponding to a sea level rise of 8.1 ± 1.1 millimetres from these three glaciers. Projections of mass loss for these glaciers, using the worst-case scenario, Representative Concentration Pathways 8.5, suggest a sea level contribution of 9.1–14.9 mm by 2100. RCP8.5 implies an additional global temperature increase of 3.7 °C by 2100, approximately four times larger than that which has taken place since 1880. We infer that projections forced by RCP8.5 underestimate glacier mass loss which could exceed this worst-case scenario. Article in Journal/Newspaper glacier Greenland Ice Sheet Jakobshavn Kangerlussuaq Zenodo Nature Communications 11 1 |
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The Greenland Ice Sheet is the largest land ice contributor to sea level rise. This will continue in the future but at an uncertain rate and observational estimates are limited to the last few decades. Understanding the long-term glacier response to external forcing is key to improving projections. Here we use historical photographs to calculate ice loss from 1880–2012 for Jakobshavn, Helheim, and Kangerlussuaq glacier. We estimate ice loss corresponding to a sea level rise of 8.1 ± 1.1 millimetres from these three glaciers. Projections of mass loss for these glaciers, using the worst-case scenario, Representative Concentration Pathways 8.5, suggest a sea level contribution of 9.1–14.9 mm by 2100. RCP8.5 implies an additional global temperature increase of 3.7 °C by 2100, approximately four times larger than that which has taken place since 1880. We infer that projections forced by RCP8.5 underestimate glacier mass loss which could exceed this worst-case scenario. |
format |
Article in Journal/Newspaper |
author |
Khan. Shfaqat A Bjørk, Anders A Bamber, Jonathan L Morlighem, Mathieu Bevis, Michael Kjær, Kurt H Mouginot, Jérémie Løkkegaard, Anja Holland, David M Aschwanden, Andy Zhang, Bao Helm, Veit Korsgaard, Niels J Colgan, William Larsen, Nicolaj K Liu, Lin Hansen, Karina Barletta, Valentina Dahl-Jensen, Trine S Søndergaard, Anne S Csatho, Beata M Sasgen, Ingo Box, Jason Schenk, Toni |
spellingShingle |
Khan. Shfaqat A Bjørk, Anders A Bamber, Jonathan L Morlighem, Mathieu Bevis, Michael Kjær, Kurt H Mouginot, Jérémie Løkkegaard, Anja Holland, David M Aschwanden, Andy Zhang, Bao Helm, Veit Korsgaard, Niels J Colgan, William Larsen, Nicolaj K Liu, Lin Hansen, Karina Barletta, Valentina Dahl-Jensen, Trine S Søndergaard, Anne S Csatho, Beata M Sasgen, Ingo Box, Jason Schenk, Toni Centennial response of Greenland's three largest outlet glaciers |
author_facet |
Khan. Shfaqat A Bjørk, Anders A Bamber, Jonathan L Morlighem, Mathieu Bevis, Michael Kjær, Kurt H Mouginot, Jérémie Løkkegaard, Anja Holland, David M Aschwanden, Andy Zhang, Bao Helm, Veit Korsgaard, Niels J Colgan, William Larsen, Nicolaj K Liu, Lin Hansen, Karina Barletta, Valentina Dahl-Jensen, Trine S Søndergaard, Anne S Csatho, Beata M Sasgen, Ingo Box, Jason Schenk, Toni |
author_sort |
Khan. Shfaqat A |
title |
Centennial response of Greenland's three largest outlet glaciers |
title_short |
Centennial response of Greenland's three largest outlet glaciers |
title_full |
Centennial response of Greenland's three largest outlet glaciers |
title_fullStr |
Centennial response of Greenland's three largest outlet glaciers |
title_full_unstemmed |
Centennial response of Greenland's three largest outlet glaciers |
title_sort |
centennial response of greenland's three largest outlet glaciers |
publisher |
Zenodo |
publishDate |
2020 |
url |
https://doi.org/10.1038/s41467-020-19580-5 |
genre |
glacier Greenland Ice Sheet Jakobshavn Kangerlussuaq |
genre_facet |
glacier Greenland Ice Sheet Jakobshavn Kangerlussuaq |
op_relation |
https://zenodo.org/communities/globalmass https://zenodo.org/communities/eu https://doi.org/10.1038/s41467-020-19580-5 oai:zenodo.org:7347812 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.1038/s41467-020-19580-5 |
container_title |
Nature Communications |
container_volume |
11 |
container_issue |
1 |
_version_ |
1810445074127912960 |