Centennial response of Greenland’s three largest outlet glaciers
Abstract 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 proj...
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2020
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Online Access: | http://dx.doi.org/10.1038/s41467-020-19580-5 http://www.nature.com/articles/s41467-020-19580-5.pdf http://www.nature.com/articles/s41467-020-19580-5 |
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crspringernat:10.1038/s41467-020-19580-5 2023-05-15T16:21:14+02:00 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 Sofie Csatho, Beata M. Sasgen, Ingo Box, Jason Schenk, Toni 2020 http://dx.doi.org/10.1038/s41467-020-19580-5 http://www.nature.com/articles/s41467-020-19580-5.pdf http://www.nature.com/articles/s41467-020-19580-5 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Nature Communications volume 11, issue 1 ISSN 2041-1723 General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry journal-article 2020 crspringernat https://doi.org/10.1038/s41467-020-19580-5 2022-01-04T12:30:03Z Abstract 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 Springer Nature (via Crossref) Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) Nature Communications 11 1 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
spellingShingle |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry 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 Sofie Csatho, Beata M. Sasgen, Ingo Box, Jason Schenk, Toni Centennial response of Greenland’s three largest outlet glaciers |
topic_facet |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
description |
Abstract 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 Sofie Csatho, Beata M. Sasgen, Ingo Box, Jason Schenk, Toni |
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 Sofie 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 |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1038/s41467-020-19580-5 http://www.nature.com/articles/s41467-020-19580-5.pdf http://www.nature.com/articles/s41467-020-19580-5 |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) |
geographic |
Greenland Kangerlussuaq |
geographic_facet |
Greenland Kangerlussuaq |
genre |
glacier Greenland Ice Sheet Jakobshavn Kangerlussuaq |
genre_facet |
glacier Greenland Ice Sheet Jakobshavn Kangerlussuaq |
op_source |
Nature Communications volume 11, issue 1 ISSN 2041-1723 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-020-19580-5 |
container_title |
Nature Communications |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766009241008603136 |