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Water-Pressure Coupling of Sliding and Bed Deformation: I. Water System

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Abstract:

Analysis of the likely behavior of a water system developed between ice and an unconsolidated glacier bed suggests that, in the absence of channelized sources of melt water, the system will approximate a film of varying thickness. The effective pressure in such a film will be proportional to the basal shear stress but inversely proportional to the fraction of the bed occupied by the film. These hypotheses allow calculation of the sliding and bed-deformation velocities of a glacier from the water supply and basal shear stress, as discussed in the second and third papers in this series.

Document Type: Research Article

DOI: https://doi.org/10.3198/1989JoG35-119-108-118

Affiliations: (Geophysical and Polar Research Center, University of Wisconsin-Madison, Madison, Wisconsin 53706-1692, U.S.A.)

Publication date: 1989-01-01

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  • The Journal of Glaciology is published six times per year. It accepts submissions from any discipline related to the study of snow and ice. All articles are peer reviewed. The Journal is included in the ISI Science Citation Index.
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