Greenland Mass Trends From Airborne and Satellite Altimetry During 2011-2020.
peer reviewed We use satellite and airborne altimetry to estimate annual mass changes of the Greenland Ice Sheet. We estimate ice loss corresponding to a sea-level rise of 6.9 ± 0.4 mm from April 2011 to April 2020, with a highest annual ice loss rate of 1.4 mm/yr sea-level equivalent from April 201...
Published in: | Journal of Geophysical Research: Earth Surface |
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Main Authors: | , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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John Wiley and Sons Inc
2022
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Online Access: | https://orbi.uliege.be/handle/2268/302199 https://orbi.uliege.be/bitstream/2268/302199/1/Khan_2022_JGR.pdf https://doi.org/10.1029/2021JF006505 |
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ftorbi:oai:orbi.ulg.ac.be:2268/302199 2024-10-13T14:07:40+00:00 Greenland Mass Trends From Airborne and Satellite Altimetry During 2011-2020. Khan, Shfaqat A Bamber, Jonathan L Rignot, Eric Helm, Veit Aschwanden, Andy Holland, David M van den Broeke, Michiel King, Michalea Noël, Brice Truffer, Martin Humbert, Angelika Colgan, William Vijay, Saurabh Kuipers Munneke, Peter 2022-04 https://orbi.uliege.be/handle/2268/302199 https://orbi.uliege.be/bitstream/2268/302199/1/Khan_2022_JGR.pdf https://doi.org/10.1029/2021JF006505 en eng John Wiley and Sons Inc https://onlinelibrary.wiley.com/doi/pdf/10.1029/2021JF006505 urn:issn:2169-9003 urn:issn:2169-9011 https://orbi.uliege.be/handle/2268/302199 info:hdl:2268/302199 https://orbi.uliege.be/bitstream/2268/302199/1/Khan_2022_JGR.pdf doi:10.1029/2021JF006505 info:pmid:35864950 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Journal of Geophysical Research. Earth Surface, 127 (4), e2021JF006505 (2022-04) Greenland Ice Sheet ice dynamics mass loss satellite altimetry surface mass balance vertical land motion Earth-Surface Processes Geophysics 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 2022 ftorbi https://doi.org/10.1029/2021JF006505 2024-09-27T07:01:36Z peer reviewed We use satellite and airborne altimetry to estimate annual mass changes of the Greenland Ice Sheet. We estimate ice loss corresponding to a sea-level rise of 6.9 ± 0.4 mm from April 2011 to April 2020, with a highest annual ice loss rate of 1.4 mm/yr sea-level equivalent from April 2019 to April 2020. On a regional scale, our annual mass loss timeseries reveals 10-15 m/yr dynamic thickening at the terminus of Jakobshavn Isbræ from April 2016 to April 2018, followed by a return to dynamic thinning. We observe contrasting patterns of mass loss acceleration in different basins across the ice sheet and suggest that these spatiotemporal trends could be useful for calibrating and validating prognostic ice sheet models. In addition to resolving the spatial and temporal fingerprint of Greenland's recent ice loss, these mass loss grids are key for partitioning contemporary elastic vertical land motion from longer-term glacial isostatic adjustment (GIA) trends at GPS stations around the ice sheet. Our ice-loss product results in a significantly different GIA interpretation from a previous ice-loss product. Article in Journal/Newspaper Greenland Ice Sheet Jakobshavn Jakobshavn isbræ University of Liège: ORBi (Open Repository and Bibliography) Greenland Jakobshavn Isbræ ENVELOPE(-49.917,-49.917,69.167,69.167) Journal of Geophysical Research: Earth Surface 127 4 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Greenland Ice Sheet ice dynamics mass loss satellite altimetry surface mass balance vertical land motion Earth-Surface Processes Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Greenland Ice Sheet ice dynamics mass loss satellite altimetry surface mass balance vertical land motion Earth-Surface Processes Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Khan, Shfaqat A Bamber, Jonathan L Rignot, Eric Helm, Veit Aschwanden, Andy Holland, David M van den Broeke, Michiel King, Michalea Noël, Brice Truffer, Martin Humbert, Angelika Colgan, William Vijay, Saurabh Kuipers Munneke, Peter Greenland Mass Trends From Airborne and Satellite Altimetry During 2011-2020. |
topic_facet |
Greenland Ice Sheet ice dynamics mass loss satellite altimetry surface mass balance vertical land motion Earth-Surface Processes Geophysics 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 We use satellite and airborne altimetry to estimate annual mass changes of the Greenland Ice Sheet. We estimate ice loss corresponding to a sea-level rise of 6.9 ± 0.4 mm from April 2011 to April 2020, with a highest annual ice loss rate of 1.4 mm/yr sea-level equivalent from April 2019 to April 2020. On a regional scale, our annual mass loss timeseries reveals 10-15 m/yr dynamic thickening at the terminus of Jakobshavn Isbræ from April 2016 to April 2018, followed by a return to dynamic thinning. We observe contrasting patterns of mass loss acceleration in different basins across the ice sheet and suggest that these spatiotemporal trends could be useful for calibrating and validating prognostic ice sheet models. In addition to resolving the spatial and temporal fingerprint of Greenland's recent ice loss, these mass loss grids are key for partitioning contemporary elastic vertical land motion from longer-term glacial isostatic adjustment (GIA) trends at GPS stations around the ice sheet. Our ice-loss product results in a significantly different GIA interpretation from a previous ice-loss product. |
format |
Article in Journal/Newspaper |
author |
Khan, Shfaqat A Bamber, Jonathan L Rignot, Eric Helm, Veit Aschwanden, Andy Holland, David M van den Broeke, Michiel King, Michalea Noël, Brice Truffer, Martin Humbert, Angelika Colgan, William Vijay, Saurabh Kuipers Munneke, Peter |
author_facet |
Khan, Shfaqat A Bamber, Jonathan L Rignot, Eric Helm, Veit Aschwanden, Andy Holland, David M van den Broeke, Michiel King, Michalea Noël, Brice Truffer, Martin Humbert, Angelika Colgan, William Vijay, Saurabh Kuipers Munneke, Peter |
author_sort |
Khan, Shfaqat A |
title |
Greenland Mass Trends From Airborne and Satellite Altimetry During 2011-2020. |
title_short |
Greenland Mass Trends From Airborne and Satellite Altimetry During 2011-2020. |
title_full |
Greenland Mass Trends From Airborne and Satellite Altimetry During 2011-2020. |
title_fullStr |
Greenland Mass Trends From Airborne and Satellite Altimetry During 2011-2020. |
title_full_unstemmed |
Greenland Mass Trends From Airborne and Satellite Altimetry During 2011-2020. |
title_sort |
greenland mass trends from airborne and satellite altimetry during 2011-2020. |
publisher |
John Wiley and Sons Inc |
publishDate |
2022 |
url |
https://orbi.uliege.be/handle/2268/302199 https://orbi.uliege.be/bitstream/2268/302199/1/Khan_2022_JGR.pdf https://doi.org/10.1029/2021JF006505 |
long_lat |
ENVELOPE(-49.917,-49.917,69.167,69.167) |
geographic |
Greenland Jakobshavn Isbræ |
geographic_facet |
Greenland Jakobshavn Isbræ |
genre |
Greenland Ice Sheet Jakobshavn Jakobshavn isbræ |
genre_facet |
Greenland Ice Sheet Jakobshavn Jakobshavn isbræ |
op_source |
Journal of Geophysical Research. Earth Surface, 127 (4), e2021JF006505 (2022-04) |
op_relation |
https://onlinelibrary.wiley.com/doi/pdf/10.1029/2021JF006505 urn:issn:2169-9003 urn:issn:2169-9011 https://orbi.uliege.be/handle/2268/302199 info:hdl:2268/302199 https://orbi.uliege.be/bitstream/2268/302199/1/Khan_2022_JGR.pdf doi:10.1029/2021JF006505 info:pmid:35864950 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2021JF006505 |
container_title |
Journal of Geophysical Research: Earth Surface |
container_volume |
127 |
container_issue |
4 |
_version_ |
1812814159826386944 |