Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020

Shfaqat A. Khan; Jonathan L. Bamber; Eric Rignot; Veit Helm; Andy Aschwanden; David M. Holland; Michiel van den Broeke; Michalea King; Brice Noël; Martin Truffer; Angelika Humbert; William Colgan; Saurabh Vijay; Peter Kuipers Munneke

doi:10.1029/2021JF006505

Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020

Shfaqat A. Khan^*
, Jonathan L. Bamber
, Eric Rignot
, Veit Helm
, Andy Aschwanden
, David M. Holland
, Michiel van den Broeke
, Michalea King
, Brice Noël
, Martin Truffer
, Angelika Humbert
, William Colgan
, Saurabh Vijay
, Peter Kuipers Munneke

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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 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.

Original language	English
Article number	e2021JF006505
Pages (from-to)	1-20
Journal	Journal of Geophysical Research: Earth Surface
Volume	127
Issue number	4
DOIs	https://doi.org/10.1029/2021JF006505
Publication status	Published - Apr 2022

Bibliographical 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. Noël 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:
© 2022 The Authors.

Funding

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. 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. Noël 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.

Keywords

Greenland Ice Sheet
ice dynamics
mass loss
satellite altimetry
surface mass balance
vertical land motion

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JGR Earth Surface - 2022 - Khan - Greenland Mass Trends From Airborne and Satellite Altimetry During 2011 2020Final published version, 5.61 MBLicence: CC BY-NC

Cite this

Khan, S. A., Bamber, J. L., Rignot, E., Helm, V., Aschwanden, A., Holland, D. M., van den Broeke, M., King, M., Noël, B., Truffer, M., Humbert, A., Colgan, W., Vijay, S., & Kuipers Munneke, P. (2022). Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020. Journal of Geophysical Research: Earth Surface, 127(4), 1-20. Article e2021JF006505. https://doi.org/10.1029/2021JF006505

@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",

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doi = "10.1029/2021JF006505",

language = "English",

volume = "127",

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Khan, SA, Bamber, JL, Rignot, E, Helm, V, Aschwanden, A, Holland, DM, van den Broeke, M, King, M, Noël, B, Truffer, M, Humbert, A, Colgan, W, Vijay, S & Kuipers Munneke, P 2022, 'Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020', Journal of Geophysical Research: Earth Surface, vol. 127, no. 4, e2021JF006505, pp. 1-20. https://doi.org/10.1029/2021JF006505

TY - JOUR

T1 - Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020

AU - Khan, Shfaqat A.

AU - Bamber, Jonathan L.

AU - Rignot, Eric

AU - Helm, Veit

AU - Aschwanden, Andy

AU - Holland, David M.

AU - van den Broeke, Michiel

AU - King, Michalea

AU - Noël, Brice

AU - Truffer, Martin

AU - Humbert, Angelika

AU - Colgan, William

AU - Vijay, Saurabh

AU - Kuipers Munneke, Peter

N1 - 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. Noël 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: © 2022 The Authors.

PY - 2022/4

Y1 - 2022/4

N2 - 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.

AB - 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.

KW - Greenland Ice Sheet

KW - ice dynamics

KW - mass loss

KW - satellite altimetry

KW - surface mass balance

KW - vertical land motion

UR - https://www.scopus.com/pages/publications/85128810470

U2 - 10.1029/2021JF006505

DO - 10.1029/2021JF006505

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AN - SCOPUS:85128810470

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VL - 127

SP - 1

EP - 20

JO - Journal of Geophysical Research: Earth Surface

JF - Journal of Geophysical Research: Earth Surface

IS - 4

M1 - e2021JF006505

ER -

Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020

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