The Cryosphere
The Cryosphere
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Articles | Volume 20, issue 1
Articles | Volume 20, issue 1
https://doi.org/10.5194/tc-20-483-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-483-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 1
Research article
 | 
21 Jan 2026
Research article |  | 21 Jan 2026

ICESat-2 surface elevation assessment with kinematic GPS and static GNSS near the ice divide in Greenland

Derek J. Pickell, Robert L. Hawley, Denis Felikson, and Jamie C. Good

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Short summary
We compared ICESat-2 ice surface height measurements in interior Greenland with ground-based Global Positioning System (GPS) observations, finding sub-centimeter biases and centimeter-scale precision with no detectable long-term drift. We also apply an autonomous validation method using Global Navigation Satellite System (GNSS) interferometric reflectometry (GNSS-IR) to measure surface elevation, producing comparable results and enabling more frequent, spatially distributed comparisons.
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