Accelerating Ice Loss From Peripheral Glaciers in North Greenland.

peer reviewed In recent decades, Greenland's peripheral glaciers have experienced large-scale mass loss, resulting in a substantial contribution to sea level rise. While their total area of Greenland ice cover is relatively small (4%), their mass loss is disproportionally large compared to the...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Khan, Shfaqat A, Colgan, William, Neumann, Thomas A, van den Broeke, Michiel R, Brunt, Kelly M, Noël, Brice, Bamber, Jonathan L, Hassan, Javed, Bjørk, Anders A
Format: Article in Journal/Newspaper
Language:English
Published: John Wiley and Sons Inc 2022
Subjects:
Greenland
Icesat‐2
ice mass loss
peripheral glacier
satellite altimetry
sea level rise
Green land
Ice clouds
Ice loss
Mass loss
North greenland
Geophysics
Earth and Planetary Sciences (all)
General Earth and Planetary Sciences
Physical
chemical
mathematical & earth Sciences
Earth sciences & physical geography
Physique
chimie
mathématiques & sciences de la terre
Sciences de la terre & géographie physique
glacier
Ice Sheet
North Greenland
Online Access:https://orbi.uliege.be/handle/2268/302200
https://orbi.uliege.be/bitstream/2268/302200/1/Khan_2022_GRL.pdf
https://doi.org/10.1029/2022GL098915
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Summary:peer reviewed In recent decades, Greenland's peripheral glaciers have experienced large-scale mass loss, resulting in a substantial contribution to sea level rise. While their total area of Greenland ice cover is relatively small (4%), their mass loss is disproportionally large compared to the Greenland ice sheet. Satellite altimetry from Ice, Cloud, and land Elevation Satellite (ICESat) and ICESat-2 shows that mass loss from Greenland's peripheral glaciers increased from 27.2 ± 6.2 Gt/yr (February 2003-October 2009) to 42.3 ± 6.2 Gt/yr (October 2018-December 2021). These relatively small glaciers now constitute 11 ± 2% of Greenland's ice loss and contribute to global sea level rise. In the period October 2018-December 2021, mass loss increased by a factor of four for peripheral glaciers in North Greenland. While peripheral glacier mass loss is widespread, we also observe a complex regional pattern where increases in precipitation at high altitudes have partially counteracted increases in melt at low altitude.

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