Mass balance of the Greenland Ice Sheet from 1992 to 2018
The Greenland Ice Sheet has been a major contributor to global sea-level rise in recent decades1,2, and it is expected to continue to be so3. Although increases in glacier flow4,5,6 and surface melting7,8,9 have been driven by oceanic10,11,12 and atmospheric13,14 warming, the magnitude and trajector...
Published in: | Nature |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | http://hdl.handle.net/11576/2672467 https://doi.org/10.1038/s41586-019-1855-2 https://www.nature.com/articles/s41586-019-1855-2 |
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Open Polar |
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Università degli Studi di Urbino: CINECA IRIS |
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ftunivurbino |
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English |
description |
The Greenland Ice Sheet has been a major contributor to global sea-level rise in recent decades1,2, and it is expected to continue to be so3. Although increases in glacier flow4,5,6 and surface melting7,8,9 have been driven by oceanic10,11,12 and atmospheric13,14 warming, the magnitude and trajectory of the ice sheet’s mass imbalance remain uncertain. Here we compare and combine 26 individual satellite measurements of changes in the ice sheet’s volume, flow and gravitational potential to produce a reconciled estimate of its mass balance. The ice sheet was close to a state of balance in the 1990s, but annual losses have risen since then, peaking at 345 ± 66 billion tonnes per year in 2011. In all, Greenland lost 3,902 ± 342 billion tonnes of ice between 1992 and 2018, causing the mean sea level to rise by 10.8 ± 0.9 millimetres. Using three regional climate models, we show that the reduced surface mass balance has driven 1,964 ± 565 billion tonnes (50.3 per cent) of the ice loss owing to increased meltwater runoff. The remaining 1,938 ± 541 billion tonnes (49.7 per cent) of ice loss was due to increased glacier dynamical imbalance, which rose from 46 ± 37 billion tonnes per year in the 1990s to 87 ± 25 billion tonnes per year since then. The total rate of ice loss slowed to 222 ± 30 billion tonnes per year between 2013 and 2017, on average, as atmospheric circulation favoured cooler conditions15 and ocean temperatures fell at the terminus of Jakobshavn Isbræ16. Cumulative ice losses from Greenland as a whole have been close to the rates predicted by the Intergovernmental Panel on Climate Change for their high-end climate warming scenario17, which forecast an additional 70 to 130 millimetres of global sea-level rise by 2100 compared with their central estimate. |
author2 |
Shepherd, Andrew Ivins, Erik Rignot, Eric Smith, Ben van den Broeke, Michiel Velicogna, Isabella Whitehouse, Pippa Briggs, Kate Joughin, Ian Krinner, Gerhard Nowicki, Sophie Payne, Tony Scambos, Ted Schlegel, Nicole Geruo, A Agosta, Cécile Ahlstrøm, Andrea Babonis, Greg Barletta, Valentina R. Bjørk, Anders A. Blazquez, Alejandro Bonin, Jennifer Colgan, William Csatho, Beata Cullather, Richard Engdahl, Marcus E. Felikson, Deni Fettweis, Xavier Forsberg, Rene Hogg, Anna E. Gallee, Hubert Gardner, Alex Gilbert, Lin Gourmelen, Noel Groh, Andrea Gunter, Brian Hanna, Edward Harig, Christopher Helm, Veit Horvath, Alexander Horwath, Martin Khan, Shfaqat Kjeldsen, Kristian K. Konrad, Hanne Langen, Peter L. Lecavalier, Benoit Loomis, Bryant Luthcke, Scott Mcmillan, Malcolm Melini, Daniele |
format |
Article in Journal/Newspaper |
author |
Andrew Shepherd Erik Ivins Eric Rignot Ben Smith Michiel van den Broeke Isabella Velicogna Pippa Whitehouse Kate Briggs Ian Joughin Gerhard Krinner Sophie Nowicki Tony Payne Ted Scambos Nicole Schlegel A Geruo Cécile Agosta Andreas Ahlstrøm Greg Babonis Valentina R. Barletta Anders A. Bjørk Alejandro Blazquez Jennifer Bonin William Colgan Beata Csatho Richard Cullather Marcus E. Engdahl Denis Felikson Xavier Fettweis Rene Forsberg Anna E. Hogg Hubert Gallee Alex Gardner Lin Gilbert Noel Gourmelen Andreas Groh Brian Gunter Edward Hanna Christopher Harig Veit Helm Alexander Horvath Martin Horwath Shfaqat Khan Kristian K. Kjeldsen Hannes Konrad Peter L. Langen Benoit Lecavalier Bryant Loomis Scott Luthcke Malcolm McMillan Daniele Melini Sebastian Mernild Yara Mohajerani Philip Moore Ruth Mottram Jeremie Mouginot Gorka Moyano Alan Muir Thomas Nagler Grace Nield Johan Nilsson Brice Noël Ines Otosaka Mark E. Pattle W. Richard Peltier Nadège Pie Roelof Rietbroek Helmut Rott Louise Sandberg Sørensen Ingo Sasgen Himanshu Save Bernd Scheuchl Ernst Schrama Ludwig Schröder Ki-Weon Seo Sebastian B. Simonsen Thomas Slater Giorgio Spada Tyler Sutterley Matthieu Talpe Lev Tarasov Willem Jan van de Berg Wouter van der Wal Melchior van Wessem Bramha Dutt Vishwakarma David Wiese David Wilton Thomas Wagner Bert Wouters Jan Wuite |
spellingShingle |
Andrew Shepherd Erik Ivins Eric Rignot Ben Smith Michiel van den Broeke Isabella Velicogna Pippa Whitehouse Kate Briggs Ian Joughin Gerhard Krinner Sophie Nowicki Tony Payne Ted Scambos Nicole Schlegel A Geruo Cécile Agosta Andreas Ahlstrøm Greg Babonis Valentina R. Barletta Anders A. Bjørk Alejandro Blazquez Jennifer Bonin William Colgan Beata Csatho Richard Cullather Marcus E. Engdahl Denis Felikson Xavier Fettweis Rene Forsberg Anna E. Hogg Hubert Gallee Alex Gardner Lin Gilbert Noel Gourmelen Andreas Groh Brian Gunter Edward Hanna Christopher Harig Veit Helm Alexander Horvath Martin Horwath Shfaqat Khan Kristian K. Kjeldsen Hannes Konrad Peter L. Langen Benoit Lecavalier Bryant Loomis Scott Luthcke Malcolm McMillan Daniele Melini Sebastian Mernild Yara Mohajerani Philip Moore Ruth Mottram Jeremie Mouginot Gorka Moyano Alan Muir Thomas Nagler Grace Nield Johan Nilsson Brice Noël Ines Otosaka Mark E. Pattle W. Richard Peltier Nadège Pie Roelof Rietbroek Helmut Rott Louise Sandberg Sørensen Ingo Sasgen Himanshu Save Bernd Scheuchl Ernst Schrama Ludwig Schröder Ki-Weon Seo Sebastian B. Simonsen Thomas Slater Giorgio Spada Tyler Sutterley Matthieu Talpe Lev Tarasov Willem Jan van de Berg Wouter van der Wal Melchior van Wessem Bramha Dutt Vishwakarma David Wiese David Wilton Thomas Wagner Bert Wouters Jan Wuite Mass balance of the Greenland Ice Sheet from 1992 to 2018 |
author_facet |
Andrew Shepherd Erik Ivins Eric Rignot Ben Smith Michiel van den Broeke Isabella Velicogna Pippa Whitehouse Kate Briggs Ian Joughin Gerhard Krinner Sophie Nowicki Tony Payne Ted Scambos Nicole Schlegel A Geruo Cécile Agosta Andreas Ahlstrøm Greg Babonis Valentina R. Barletta Anders A. Bjørk Alejandro Blazquez Jennifer Bonin William Colgan Beata Csatho Richard Cullather Marcus E. Engdahl Denis Felikson Xavier Fettweis Rene Forsberg Anna E. Hogg Hubert Gallee Alex Gardner Lin Gilbert Noel Gourmelen Andreas Groh Brian Gunter Edward Hanna Christopher Harig Veit Helm Alexander Horvath Martin Horwath Shfaqat Khan Kristian K. Kjeldsen Hannes Konrad Peter L. Langen Benoit Lecavalier Bryant Loomis Scott Luthcke Malcolm McMillan Daniele Melini Sebastian Mernild Yara Mohajerani Philip Moore Ruth Mottram Jeremie Mouginot Gorka Moyano Alan Muir Thomas Nagler Grace Nield Johan Nilsson Brice Noël Ines Otosaka Mark E. Pattle W. Richard Peltier Nadège Pie Roelof Rietbroek Helmut Rott Louise Sandberg Sørensen Ingo Sasgen Himanshu Save Bernd Scheuchl Ernst Schrama Ludwig Schröder Ki-Weon Seo Sebastian B. Simonsen Thomas Slater Giorgio Spada Tyler Sutterley Matthieu Talpe Lev Tarasov Willem Jan van de Berg Wouter van der Wal Melchior van Wessem Bramha Dutt Vishwakarma David Wiese David Wilton Thomas Wagner Bert Wouters Jan Wuite |
author_sort |
Andrew Shepherd |
title |
Mass balance of the Greenland Ice Sheet from 1992 to 2018 |
title_short |
Mass balance of the Greenland Ice Sheet from 1992 to 2018 |
title_full |
Mass balance of the Greenland Ice Sheet from 1992 to 2018 |
title_fullStr |
Mass balance of the Greenland Ice Sheet from 1992 to 2018 |
title_full_unstemmed |
Mass balance of the Greenland Ice Sheet from 1992 to 2018 |
title_sort |
mass balance of the greenland ice sheet from 1992 to 2018 |
publishDate |
2020 |
url |
http://hdl.handle.net/11576/2672467 https://doi.org/10.1038/s41586-019-1855-2 https://www.nature.com/articles/s41586-019-1855-2 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet Jakobshavn |
genre_facet |
glacier Greenland Ice Sheet Jakobshavn |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000519378900023 volume:579 firstpage:233 lastpage:239 numberofpages:7 journal:NATURE http://hdl.handle.net/11576/2672467 doi:10.1038/s41586-019-1855-2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85078287272 https://www.nature.com/articles/s41586-019-1855-2 |
op_doi |
https://doi.org/10.1038/s41586-019-1855-2 |
container_title |
Nature |
container_volume |
579 |
container_issue |
7798 |
container_start_page |
233 |
op_container_end_page |
239 |
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spelling |
ftunivurbino:oai:ora.uniurb.it:11576/2672467 2024-04-14T08:11:58+00:00 Mass balance of the Greenland Ice Sheet from 1992 to 2018 Andrew Shepherd Erik Ivins Eric Rignot Ben Smith Michiel van den Broeke Isabella Velicogna Pippa Whitehouse Kate Briggs Ian Joughin Gerhard Krinner Sophie Nowicki Tony Payne Ted Scambos Nicole Schlegel A Geruo Cécile Agosta Andreas Ahlstrøm Greg Babonis Valentina R. Barletta Anders A. Bjørk Alejandro Blazquez Jennifer Bonin William Colgan Beata Csatho Richard Cullather Marcus E. Engdahl Denis Felikson Xavier Fettweis Rene Forsberg Anna E. Hogg Hubert Gallee Alex Gardner Lin Gilbert Noel Gourmelen Andreas Groh Brian Gunter Edward Hanna Christopher Harig Veit Helm Alexander Horvath Martin Horwath Shfaqat Khan Kristian K. Kjeldsen Hannes Konrad Peter L. Langen Benoit Lecavalier Bryant Loomis Scott Luthcke Malcolm McMillan Daniele Melini Sebastian Mernild Yara Mohajerani Philip Moore Ruth Mottram Jeremie Mouginot Gorka Moyano Alan Muir Thomas Nagler Grace Nield Johan Nilsson Brice Noël Ines Otosaka Mark E. Pattle W. Richard Peltier Nadège Pie Roelof Rietbroek Helmut Rott Louise Sandberg Sørensen Ingo Sasgen Himanshu Save Bernd Scheuchl Ernst Schrama Ludwig Schröder Ki-Weon Seo Sebastian B. Simonsen Thomas Slater Giorgio Spada Tyler Sutterley Matthieu Talpe Lev Tarasov Willem Jan van de Berg Wouter van der Wal Melchior van Wessem Bramha Dutt Vishwakarma David Wiese David Wilton Thomas Wagner Bert Wouters Jan Wuite Shepherd, Andrew Ivins, Erik Rignot, Eric Smith, Ben van den Broeke, Michiel Velicogna, Isabella Whitehouse, Pippa Briggs, Kate Joughin, Ian Krinner, Gerhard Nowicki, Sophie Payne, Tony Scambos, Ted Schlegel, Nicole Geruo, A Agosta, Cécile Ahlstrøm, Andrea Babonis, Greg Barletta, Valentina R. Bjørk, Anders A. Blazquez, Alejandro Bonin, Jennifer Colgan, William Csatho, Beata Cullather, Richard Engdahl, Marcus E. Felikson, Deni Fettweis, Xavier Forsberg, Rene Hogg, Anna E. Gallee, Hubert Gardner, Alex Gilbert, Lin Gourmelen, Noel Groh, Andrea Gunter, Brian Hanna, Edward Harig, Christopher Helm, Veit Horvath, Alexander Horwath, Martin Khan, Shfaqat Kjeldsen, Kristian K. Konrad, Hanne Langen, Peter L. Lecavalier, Benoit Loomis, Bryant Luthcke, Scott Mcmillan, Malcolm Melini, Daniele 2020 ELETTRONICO http://hdl.handle.net/11576/2672467 https://doi.org/10.1038/s41586-019-1855-2 https://www.nature.com/articles/s41586-019-1855-2 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000519378900023 volume:579 firstpage:233 lastpage:239 numberofpages:7 journal:NATURE http://hdl.handle.net/11576/2672467 doi:10.1038/s41586-019-1855-2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85078287272 https://www.nature.com/articles/s41586-019-1855-2 info:eu-repo/semantics/article 2020 ftunivurbino https://doi.org/10.1038/s41586-019-1855-2 2024-03-21T17:06:40Z The Greenland Ice Sheet has been a major contributor to global sea-level rise in recent decades1,2, and it is expected to continue to be so3. Although increases in glacier flow4,5,6 and surface melting7,8,9 have been driven by oceanic10,11,12 and atmospheric13,14 warming, the magnitude and trajectory of the ice sheet’s mass imbalance remain uncertain. Here we compare and combine 26 individual satellite measurements of changes in the ice sheet’s volume, flow and gravitational potential to produce a reconciled estimate of its mass balance. The ice sheet was close to a state of balance in the 1990s, but annual losses have risen since then, peaking at 345 ± 66 billion tonnes per year in 2011. In all, Greenland lost 3,902 ± 342 billion tonnes of ice between 1992 and 2018, causing the mean sea level to rise by 10.8 ± 0.9 millimetres. Using three regional climate models, we show that the reduced surface mass balance has driven 1,964 ± 565 billion tonnes (50.3 per cent) of the ice loss owing to increased meltwater runoff. The remaining 1,938 ± 541 billion tonnes (49.7 per cent) of ice loss was due to increased glacier dynamical imbalance, which rose from 46 ± 37 billion tonnes per year in the 1990s to 87 ± 25 billion tonnes per year since then. The total rate of ice loss slowed to 222 ± 30 billion tonnes per year between 2013 and 2017, on average, as atmospheric circulation favoured cooler conditions15 and ocean temperatures fell at the terminus of Jakobshavn Isbræ16. Cumulative ice losses from Greenland as a whole have been close to the rates predicted by the Intergovernmental Panel on Climate Change for their high-end climate warming scenario17, which forecast an additional 70 to 130 millimetres of global sea-level rise by 2100 compared with their central estimate. Article in Journal/Newspaper glacier Greenland Ice Sheet Jakobshavn Università degli Studi di Urbino: CINECA IRIS Greenland Nature 579 7798 233 239 |