Articles | Volume 12, issue 8
The Cryosphere, 12, 2545–2568, 2018
https://doi.org/10.5194/tc-12-2545-2018
The Cryosphere, 12, 2545–2568, 2018
https://doi.org/10.5194/tc-12-2545-2018

Research article 13 Aug 2018

Research article | 13 Aug 2018

The role of subtemperate slip in thermally driven ice stream margin migration

Marianne Haseloff et al.

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Latest update: 05 Dec 2021
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Short summary
The widths of the Siple Coast ice streams evolve on decadal to centennial timescales. We investigate how the rate of thermally driven ice stream widening depends on heat dissipation in the ice stream margin and at the bed, and on the inflow of cold ice from the ice ridge. As determining the migration rate requires resolving heat transfer processes on very small scales, we derive a parametrization of the migration rate in terms of parameters that are available from large-scale model outputs.