The role of shear heating in the dynamics of large ice masses.

D. A. Yuen, G. Schubert

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Self-consistent, steady, one-dimensional, subsolidus creep models of temperature and velocity are calculated for constant-thickness ice sheets sliding down a bed of constant slope under their own weight. Surface velocities of meters per year together with ice thickness of hundreds of meters can be realized by models wherein no melting occurs only if the activation energy for shear deformation E* is relatively small; a value of E* of about 60.7 kJ/mol is satisfactory, but an activation energy twice as large is not. -from Authors

Original languageEnglish (US)
Pages (from-to)l95-2l2
JournalJournal of Glaciology
Volume24
Issue number90
DOIs
StatePublished - 1979

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