Accelerating Ice Loss From Peripheral Glaciers in North Greenland
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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.
Originalsprog | Engelsk |
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Artikelnummer | e2022GL098915 |
Tidsskrift | Geophysical Research Letters |
Vol/bind | 49 |
Udgave nummer | 12 |
ISSN | 0094-8276 |
DOI | |
Status | Udgivet - 2022 |
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