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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Cited
19 citations as recorded by crossref.
- Development and Benchmarking of the Shallow Shelf Approximation Ice Sheet Dynamics Module Y. Baek et al. 10.1007/s12601-023-00120-3
- Improved representation of laminar and turbulent sheet flow in subglacial drainage models T. Hill et al. 10.1017/jog.2023.103
- Inferred basal friction and mass flux affected by crystal-orientation fabrics N. Rathmann & D. Lilien 10.1017/jog.2021.88
- Inferring forms of glacier slip laws from estimates of ice-bed separation during glacier slip J. Woodard et al. 10.1017/jog.2022.63
- Robust reconstruction of glacier beds using transient 2D assimilation with Stokes S. Cook et al. 10.1017/jog.2023.26
- Greenland ice sheet mass balance from 1840 through next week K. Mankoff et al. 10.5194/essd-13-5001-2021
- Complex motion of Greenland Ice Sheet outlet glaciers with basal temperate ice R. Law et al. 10.1126/sciadv.abq5180
- Drumlins and mega-scale glacial lineations as a continuum of subglacial shear marks: A LiDAR based morphometric study of streamlined surfaces on the bed of a Canadian paleo-ice stream S. Sookhan et al. 10.1016/j.quascirev.2022.107679
- Helheim Glacier's Terminus Position Controls Its Seasonal and Inter‐Annual Ice Flow Variability G. Cheng et al. 10.1029/2021GL097085
- Threshold response to melt drives large-scale bed weakening in Greenland N. Maier et al. 10.1038/s41586-022-04927-3
- GBaTSv2: a revised synthesis of the likely basal thermal state of the Greenland Ice Sheet J. MacGregor et al. 10.5194/tc-16-3033-2022
- The comparative role of physical system processes in Hudson Strait ice stream cycling: a comprehensive model-based test of Heinrich event hypotheses K. Hank & L. Tarasov 10.5194/cp-20-2499-2024
- Variations in Hard‐Bedded Topography Beneath Glaciers J. Woodard et al. 10.1029/2021JF006326
- Elastic deformation plays a non-negligible role in Greenland’s outlet glacier flow J. Christmann et al. 10.1038/s43247-021-00296-3
- Seasonal evolution of basal environment conditions of Russell sector, West Greenland, inverted from satellite observation of surface flow A. Derkacheva et al. 10.5194/tc-15-5675-2021
- Do Existing Theories Explain Seasonal to Multi‐Decadal Changes in Glacier Basal Sliding Speed? F. Gimbert et al. 10.1029/2021GL092858
- Advances in monitoring glaciological processes in Kalallit Nunaat (Greenland) over the past decades D. Fahrner et al. 10.1371/journal.pclm.0000379
- Basal stress controls ice-flow variability during a surge cycle of Hagen Bræ, Greenland Ø. Winton et al. 10.1017/jog.2021.111
- Inferring the Basal Friction Law From Long Term Changes of Glacier Length, Thickness and Velocity on an Alpine Glacier A. Gilbert et al. 10.1029/2023GL104503
19 citations as recorded by crossref.
- Development and Benchmarking of the Shallow Shelf Approximation Ice Sheet Dynamics Module Y. Baek et al. 10.1007/s12601-023-00120-3
- Improved representation of laminar and turbulent sheet flow in subglacial drainage models T. Hill et al. 10.1017/jog.2023.103
- Inferred basal friction and mass flux affected by crystal-orientation fabrics N. Rathmann & D. Lilien 10.1017/jog.2021.88
- Inferring forms of glacier slip laws from estimates of ice-bed separation during glacier slip J. Woodard et al. 10.1017/jog.2022.63
- Robust reconstruction of glacier beds using transient 2D assimilation with Stokes S. Cook et al. 10.1017/jog.2023.26
- Greenland ice sheet mass balance from 1840 through next week K. Mankoff et al. 10.5194/essd-13-5001-2021
- Complex motion of Greenland Ice Sheet outlet glaciers with basal temperate ice R. Law et al. 10.1126/sciadv.abq5180
- Drumlins and mega-scale glacial lineations as a continuum of subglacial shear marks: A LiDAR based morphometric study of streamlined surfaces on the bed of a Canadian paleo-ice stream S. Sookhan et al. 10.1016/j.quascirev.2022.107679
- Helheim Glacier's Terminus Position Controls Its Seasonal and Inter‐Annual Ice Flow Variability G. Cheng et al. 10.1029/2021GL097085
- Threshold response to melt drives large-scale bed weakening in Greenland N. Maier et al. 10.1038/s41586-022-04927-3
- GBaTSv2: a revised synthesis of the likely basal thermal state of the Greenland Ice Sheet J. MacGregor et al. 10.5194/tc-16-3033-2022
- The comparative role of physical system processes in Hudson Strait ice stream cycling: a comprehensive model-based test of Heinrich event hypotheses K. Hank & L. Tarasov 10.5194/cp-20-2499-2024
- Variations in Hard‐Bedded Topography Beneath Glaciers J. Woodard et al. 10.1029/2021JF006326
- Elastic deformation plays a non-negligible role in Greenland’s outlet glacier flow J. Christmann et al. 10.1038/s43247-021-00296-3
- Seasonal evolution of basal environment conditions of Russell sector, West Greenland, inverted from satellite observation of surface flow A. Derkacheva et al. 10.5194/tc-15-5675-2021
- Do Existing Theories Explain Seasonal to Multi‐Decadal Changes in Glacier Basal Sliding Speed? F. Gimbert et al. 10.1029/2021GL092858
- Advances in monitoring glaciological processes in Kalallit Nunaat (Greenland) over the past decades D. Fahrner et al. 10.1371/journal.pclm.0000379
- Basal stress controls ice-flow variability during a surge cycle of Hagen Bræ, Greenland Ø. Winton et al. 10.1017/jog.2021.111
- Inferring the Basal Friction Law From Long Term Changes of Glacier Length, Thickness and Velocity on an Alpine Glacier A. Gilbert et al. 10.1029/2023GL104503
Latest update: 23 Apr 2025
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...
