Articles | Volume 12, issue 5
The Cryosphere, 12, 1615–1628, 2018
https://doi.org/10.5194/tc-12-1615-2018
The Cryosphere, 12, 1615–1628, 2018
https://doi.org/10.5194/tc-12-1615-2018

Research article 04 May 2018

Research article | 04 May 2018

How dynamic are ice-stream beds?

Damon Davies et al.

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Short summary
This paper investigates the dynamics of ice stream beds using repeat geophysical surveys of the bed of Pine Island Glacier, West Antarctica; 60 km of the bed was surveyed, comprising the most extensive repeat ground-based geophysical surveys of an Antarctic ice stream; 90 % of the surveyed bed shows no significant change despite the glacier increasing in speed by up to 40 % over the last decade. This result suggests that ice stream beds are potentially more stable than previously suggested.