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Comment on “Friction at the bed does not control fast glacier flow”

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Science  08 Feb 2019:
Vol. 363, Issue 6427, eaau6055
DOI: 10.1126/science.aau6055

Abstract

Stearns and van der Veen (Reports, 20 July 2018, p. 273) conclude that fast glacier sliding is independent of basal drag (friction), even where drag balances most of the driving stress. This conclusion raises fundamental physical issues, the most striking of which is that sliding velocity would be independent of stresses imparted through the ice column, including gravitational driving stress.

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