Articles | Volume 14, issue 1
https://doi.org/10.5194/tc-14-211-2020
© Author(s) 2020. 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-14-211-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
24 Jan 2020
Research article | Highlight paper |
| 24 Jan 2020
| 24 Jan 2020
A decade of variability on Jakobshavn Isbræ: ocean temperatures pace speed through influence on mélange rigidity
Ian Joughin
CORRESPONDING AUTHOR
Applied Physics Laboratory, University of Washington, Seattle, 98105, USA
David E. Shean
Department of Civil and Environmental Engineering, University of
Washington, Seattle, 98185, USA
Benjamin E. Smith
Applied Physics Laboratory, University of Washington, Seattle, 98105, USA
Dana Floricioiu
Remote Sensing Technology Institute, German Aerospace Center (DLR), Muenchenerstr. 20, 82230 Wessling, Germany
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- Analyzing spatial-temporal variability of ice motion in Northeast Greenland from 1985 to 2018 X. Lu et al. 10.3389/feart.2022.972291
- Impact of seasonal fluctuations of ice velocity on decadal trends observed in Southwest Greenland P. Halas et al. 10.1016/j.rse.2022.113419
- Holocene warmth explains the Little Ice Age advance of Sermeq Kujalleq K. Kajanto et al. 10.1016/j.quascirev.2024.108840
- A new 3D full-Stokes calving algorithm within Elmer/Ice (v9.0) I. Wheel et al. 10.5194/gmd-17-5759-2024
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- Helheim Glacier Poised for Dramatic Retreat J. Williams et al. 10.1029/2021GL094546
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Discussed (final revised paper)
Latest update: 13 Nov 2024
Short summary
Jakobshavn Isbræ, considered to be Greenland's fastest glacier, has varied its speed and thinned dramatically since the 1990s. Here we examine the glacier's behaviour over the last decade to better understand this behaviour. We find that when the floating ice (mélange) in front of the glacier freezes in place during the winter, it can control the glacier's speed and thinning rate. A recently colder ocean has strengthened this mélange, allowing the glacier to recoup some of its previous losses.
Jakobshavn Isbræ, considered to be Greenland's fastest glacier, has varied its speed and...
