Chapter
Large ice mass surging via ice-bedrock interface mobilization
Abstract
A finite element model for surging (instability) of large ice masses is presented. At the interface between the ice and the rock, the basal shear resistance is reduced according to the excess sliding energy dissipated above a certain threshold value. In addition to the threshold energy, the time for surging is also controlled by a lubrication factor. It is confirmed that a geothermal flux approaching 1.9 HFU is required to bring most of the …
Authors
Stolle DFE; Mirza FA
Book title
Studies in Applied Mechanics
Volume
11
Pagination
pp. 173-188
Publication Date
January 1, 1986
DOI
10.1016/B978-0-444-42625-3.50016-9