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Basal Water Film, Basal Water Pressure, and Velocity of Traveling Waves on Glaciers
Journal of Glaciology
The theory of Nye and of Weertman of traveling waves on glaciers is extended to cover the situation where the presence of abundant basal water or increased basal water pressure produces increased sliding of a glacier over its bed. It is found that the ratio of traveling-wave velocity to surface velocity is independent of the amount of water or the basal water pressure. The theoretical value of this ratio, about 4 to 5, agrees with that found in field measurements (the most recent data are fromdoi:10.3189/s0022143000005116 fatcat:soqw57v6b5dlxccuj4s3lmlpou