Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020
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 202...
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2022
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ftunivutrecht:oai:dspace.library.uu.nl:1874/420522 2023-11-12T04:17:47+01:00 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 Sub Dynamics Meteorology Marine and Atmospheric Research 2022-04 application/pdf https://dspace.library.uu.nl/handle/1874/420522 en eng 2169-9003 https://dspace.library.uu.nl/handle/1874/420522 info:eu-repo/semantics/OpenAccess Greenland Ice Sheet ice dynamics mass loss satellite altimetry surface mass balance vertical land motion Earth-Surface Processes Geophysics Article 2022 ftunivutrecht 2023-11-01T23:28:29Z 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 Utrecht University Repository Greenland Jakobshavn Isbræ ENVELOPE(-49.917,-49.917,69.167,69.167) |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Greenland Ice Sheet ice dynamics mass loss satellite altimetry surface mass balance vertical land motion Earth-Surface Processes Geophysics |
spellingShingle |
Greenland Ice Sheet ice dynamics mass loss satellite altimetry surface mass balance vertical land motion Earth-Surface Processes Geophysics 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 |
description |
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. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
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 |
publishDate |
2022 |
url |
https://dspace.library.uu.nl/handle/1874/420522 |
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_relation |
2169-9003 https://dspace.library.uu.nl/handle/1874/420522 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782334560326909952 |