@article{3e7b8a70bbc94744936024e0976747fa,
title = "Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020",
abstract = "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 Isbr{\ae} 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.",
keywords = "Greenland Ice Sheet, ice dynamics, mass loss, satellite altimetry, surface mass balance, vertical land motion",
author = "Khan, {Shfaqat A.} and Bamber, {Jonathan L.} and Eric Rignot and Veit Helm and Andy Aschwanden and Holland, {David M.} and {van den Broeke}, Michiel and Michalea King and Brice No{\"e}l and Martin Truffer and Angelika Humbert and William Colgan and Saurabh Vijay and {Kuipers Munneke}, Peter",
note = "Funding Information: S A Khan acknowledges support from the Independent Research Fund Denmark- Natural Sciences Grant No. 1026-00085B and Villum Fonden (Villum Experiment Programme) Project No. 40718. J L Bamber acknowledges support from European Research Council Grant No. 694188 (GlobalMass) and German Federal Ministry of Education and Research in the framework of the international future AI lab (Grant number: 01DD20001). D M Holland is grateful for support from NYU Abu Dhabi grant G1204 and NASA's Ocean Melting Greenland project. B. No?l was funded by the NWO VENI grant VI. Veni.192.019. W. Colgan acknowledges support from the Independent Research Fund Denmark (8049-00003B) and the Programme for Monitoring of the Greenland Ice Sheet. Finally, we thank the editor (Olga Sergienko), anonymous associate editor and two anonymous reviewers for insightful and constructive comments to earlier drafts of this manuscript. Funding Information: S A Khan acknowledges support from the Independent Research Fund Denmark‐ Natural Sciences Grant No. 1026‐00085B and Villum Fonden (Villum Experiment Programme) Project No. 40718. J L Bamber acknowledges support from European Research Council Grant No. 694188 (GlobalMass) and German Federal Ministry of Education and Research in the framework of the international future AI lab (Grant number: 01DD20001). D M Holland is grateful for support from NYU Abu Dhabi grant G1204 and NASA's Ocean Melting Greenland project. B. No{\"e}l was funded by the NWO VENI grant VI. Veni.192.019. W. Colgan acknowledges support from the Independent Research Fund Denmark (8049‐00003B) and the Programme for Monitoring of the Greenland Ice Sheet. Finally, we thank the editor (Olga Sergienko), anonymous associate editor and two anonymous reviewers for insightful and constructive comments to earlier drafts of this manuscript. Publisher Copyright: {\textcopyright} 2022 The Authors.",
year = "2022",
month = apr,
doi = "10.1029/2021JF006505",
language = "English",
volume = "127",
pages = "1--20",
journal = "Journal of Geophysical Research: Earth Surface",
issn = "2169-9003",
publisher = "John Wiley and Sons Inc.",
number = "4",
}