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.
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.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Jan 2026
Research article |
| 21 Jan 2026
| 21 Jan 2026
ICESat-2 surface elevation assessment with kinematic GPS and static GNSS near the ice divide in Greenland
Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire, USA
Robert L. Hawley
Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire, USA
Denis Felikson
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Jamie C. Good
Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire, USA
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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.
We compared ICESat-2 ice surface height measurements in interior Greenland with ground-based...
