Accelerating Ice Loss From Peripheral Glaciers in North Greenland
Abstract 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 Green...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-06-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2022GL098915 |
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| _version_ | 1832591218355208192 |
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| author | Shfaqat A. Khan William Colgan Thomas A. Neumann Michiel R. van denBroeke Kelly M. Brunt Brice Noël Jonathan L. Bamber Javed Hassan Anders A. Bjørk |
| author_facet | Shfaqat A. Khan William Colgan Thomas A. Neumann Michiel R. van denBroeke Kelly M. Brunt Brice Noël Jonathan L. Bamber Javed Hassan Anders A. Bjørk |
| author_sort | Shfaqat A. Khan |
| collection | DOAJ |
| description | Abstract 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. |
| format | Article |
| id | doaj-art-2e9ef72c82b24e1d85489ea6a0712915 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2022-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-2e9ef72c82b24e1d85489ea6a07129152025-01-22T14:38:16ZengWileyGeophysical Research Letters0094-82761944-80072022-06-014912n/an/a10.1029/2022GL098915Accelerating Ice Loss From Peripheral Glaciers in North GreenlandShfaqat A. Khan0William Colgan1Thomas A. Neumann2Michiel R. van denBroeke3Kelly M. Brunt4Brice Noël5Jonathan L. Bamber6Javed Hassan7Anders A. Bjørk8DTU Space Technical University of Denmark Kongens Lyngby DenmarkDepartment of Glaciology and Climate Geological Survey of Denmark and Greenland Copenhagen DenmarkNASA Goddard Space Flight Center Greenbelt MD USAInstitute for Marine and Atmospheric Research Utrecht Utrecht University Utrecht The NetherlandsNASA Goddard Space Flight Center Greenbelt MD USAInstitute for Marine and Atmospheric Research Utrecht Utrecht University Utrecht The NetherlandsBristol Glaciology Centre University of Bristol Bristol UKDTU Space Technical University of Denmark Kongens Lyngby DenmarkDepartment of Geosciences and Natural Resources University of Copenhagen Copenhagen DenmarkAbstract 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.https://doi.org/10.1029/2022GL098915Greenlandice mass lossIcesat‐2peripheral glaciersatellite altimetrysea level rise |
| spellingShingle | Shfaqat A. Khan William Colgan Thomas A. Neumann Michiel R. van denBroeke Kelly M. Brunt Brice Noël Jonathan L. Bamber Javed Hassan Anders A. Bjørk Accelerating Ice Loss From Peripheral Glaciers in North Greenland Geophysical Research Letters Greenland ice mass loss Icesat‐2 peripheral glacier satellite altimetry sea level rise |
| title | Accelerating Ice Loss From Peripheral Glaciers in North Greenland |
| title_full | Accelerating Ice Loss From Peripheral Glaciers in North Greenland |
| title_fullStr | Accelerating Ice Loss From Peripheral Glaciers in North Greenland |
| title_full_unstemmed | Accelerating Ice Loss From Peripheral Glaciers in North Greenland |
| title_short | Accelerating Ice Loss From Peripheral Glaciers in North Greenland |
| title_sort | accelerating ice loss from peripheral glaciers in north greenland |
| topic | Greenland ice mass loss Icesat‐2 peripheral glacier satellite altimetry sea level rise |
| url | https://doi.org/10.1029/2022GL098915 |
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