Greenland GPS Network: Uplift rates compared with predicted elastic response obtained from GRACE mass loss
Abstract
We analyze data from continuous Global Positioning System (GPS) receivers located around the edge of the Greenland Ice sheet. The GPS stations were established in bedrock to determine vertical crustal motion due to loading or unloading of ice from the Greenland ice sheet. Our results show huge uplift in southeast Greenland due to mass loss from the main outlet glaciers in the region. The signal is also picked up by GRACE as a huge mass loss in the same region. Additionally, our GPS results show acceleration of uplift in northwest Greenland starting around 2006-2007, which is consistent with independent GRACE results suggesting acceleration in ice mass loss in the same region during the same time period.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2009
- Bibcode:
- 2009AGUFM.G42A..06K
- Keywords:
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- 0726 CRYOSPHERE / Ice sheets;
- 0762 CRYOSPHERE / Mass balance;
- 1211 GEODESY AND GRAVITY / Non-tectonic deformation;
- 1621 GLOBAL CHANGE / Cryospheric change