Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat
peer reviewed The Greenland Ice Sheet is losing mass at accelerated rates in the 21st century, making it the largest single contributor to rising sea levels. Faster flow of outlet glaciers has substantially contributed to this loss, with the cause of speedup, and potential for future change, uncerta...
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2020
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ftorbi:oai:orbi.ulg.ac.be:2268/301936 2024-04-21T08:02:27+00:00 Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat King, Michalea D. Howat, Ian M. Candela, Salvatore G. Noh, Myoung J. Jeong, Seongsu Noël, Brice van den Broeke, Michiel R. Wouters, Bert Negrete, Adelaide 2020-12 https://orbi.uliege.be/handle/2268/301936 https://orbi.uliege.be/bitstream/2268/301936/1/King_NE%26E_2020.pdf https://doi.org/10.1038/s43247-020-0001-2 en eng Nature Publishing Group https://www.nature.com/articles/s43247-020-0001-2.pdf urn:issn:2662-4435 https://orbi.uliege.be/handle/2268/301936 info:hdl:2268/301936 https://orbi.uliege.be/bitstream/2268/301936/1/King_NE%26E_2020.pdf doi:10.1038/s43247-020-0001-2 scopus-id:2-s2.0-85132157853 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Communications Earth and Environment, 1 (1) (2020-12) Environmental Science (all) Earth and Planetary Sciences (all) General Earth and Planetary Sciences General Environmental Science Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2020 ftorbi https://doi.org/10.1038/s43247-020-0001-2 2024-03-27T14:57:53Z peer reviewed The Greenland Ice Sheet is losing mass at accelerated rates in the 21st century, making it the largest single contributor to rising sea levels. Faster flow of outlet glaciers has substantially contributed to this loss, with the cause of speedup, and potential for future change, uncertain. Here we combine more than three decades of remotely sensed observational products of outlet glacier velocity, elevation, and front position changes over the full ice sheet. We compare decadal variability in discharge and calving front position and find that increased glacier discharge was due almost entirely to the retreat of glacier fronts, rather than inland ice sheet processes, with a remarkably consistent speedup of 4–5% per km of retreat across the ice sheet. We show that widespread retreat between 2000 and 2005 resulted in a step-increase in discharge and a switch to a new dynamic state of sustained mass loss that would persist even under a decline in surface melt. Article in Journal/Newspaper glacier Greenland Ice Sheet University of Liège: ORBi (Open Repository and Bibliography) Communications Earth & Environment 1 1 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Environmental Science (all) Earth and Planetary Sciences (all) General Earth and Planetary Sciences General Environmental Science Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Environmental Science (all) Earth and Planetary Sciences (all) General Earth and Planetary Sciences General Environmental Science Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique King, Michalea D. Howat, Ian M. Candela, Salvatore G. Noh, Myoung J. Jeong, Seongsu Noël, Brice van den Broeke, Michiel R. Wouters, Bert Negrete, Adelaide Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat |
topic_facet |
Environmental Science (all) Earth and Planetary Sciences (all) General Earth and Planetary Sciences General Environmental Science Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed The Greenland Ice Sheet is losing mass at accelerated rates in the 21st century, making it the largest single contributor to rising sea levels. Faster flow of outlet glaciers has substantially contributed to this loss, with the cause of speedup, and potential for future change, uncertain. Here we combine more than three decades of remotely sensed observational products of outlet glacier velocity, elevation, and front position changes over the full ice sheet. We compare decadal variability in discharge and calving front position and find that increased glacier discharge was due almost entirely to the retreat of glacier fronts, rather than inland ice sheet processes, with a remarkably consistent speedup of 4–5% per km of retreat across the ice sheet. We show that widespread retreat between 2000 and 2005 resulted in a step-increase in discharge and a switch to a new dynamic state of sustained mass loss that would persist even under a decline in surface melt. |
format |
Article in Journal/Newspaper |
author |
King, Michalea D. Howat, Ian M. Candela, Salvatore G. Noh, Myoung J. Jeong, Seongsu Noël, Brice van den Broeke, Michiel R. Wouters, Bert Negrete, Adelaide |
author_facet |
King, Michalea D. Howat, Ian M. Candela, Salvatore G. Noh, Myoung J. Jeong, Seongsu Noël, Brice van den Broeke, Michiel R. Wouters, Bert Negrete, Adelaide |
author_sort |
King, Michalea D. |
title |
Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat |
title_short |
Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat |
title_full |
Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat |
title_fullStr |
Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat |
title_full_unstemmed |
Dynamic ice loss from the Greenland Ice Sheet driven by sustained glacier retreat |
title_sort |
dynamic ice loss from the greenland ice sheet driven by sustained glacier retreat |
publisher |
Nature Publishing Group |
publishDate |
2020 |
url |
https://orbi.uliege.be/handle/2268/301936 https://orbi.uliege.be/bitstream/2268/301936/1/King_NE%26E_2020.pdf https://doi.org/10.1038/s43247-020-0001-2 |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_source |
Communications Earth and Environment, 1 (1) (2020-12) |
op_relation |
https://www.nature.com/articles/s43247-020-0001-2.pdf urn:issn:2662-4435 https://orbi.uliege.be/handle/2268/301936 info:hdl:2268/301936 https://orbi.uliege.be/bitstream/2268/301936/1/King_NE%26E_2020.pdf doi:10.1038/s43247-020-0001-2 scopus-id:2-s2.0-85132157853 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s43247-020-0001-2 |
container_title |
Communications Earth & Environment |
container_volume |
1 |
container_issue |
1 |
_version_ |
1796942636059197440 |