Articles | Volume 15, issue 3
https://doi.org/10.5194/tc-15-1435-2021
© Author(s) 2021. 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-15-1435-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Mar 2021
Research article |
| 22 Mar 2021
| 22 Mar 2021
Basal traction mainly dictated by hard-bed physics over grounded regions of Greenland
IGE, Université Grenoble Alpes, CNRS, Grenoble, France
Florent Gimbert
IGE, Université Grenoble Alpes, CNRS, Grenoble, France
Fabien Gillet-Chaulet
IGE, Université Grenoble Alpes, CNRS, Grenoble, France
Adrien Gilbert
IGE, Université Grenoble Alpes, CNRS, Grenoble, France
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Short summary
In Greenland, ice motion and the surface geometry depend on the friction at the bed. We use satellite measurements and modeling to determine how ice speeds and friction are related across the ice sheet. The relationships indicate that ice flowing over bed bumps sets the friction across most of the ice sheet's on-land regions. This result helps simplify and improve our understanding of how ice motion will change in the future.
In Greenland, ice motion and the surface geometry depend on the friction at the bed. We use...
