The Inverse Problem for Valley Glacier Flow
Open Access
- 1 January 1981
- journal article
- Published by International Glaciological Society in Journal of Glaciology
- Vol. 27 (95) , 179-184
- https://doi.org/10.3189/s0022143000011345
Abstract
We seek to infer the velocities within a cylindrical valley glacier from measured surface velocities. In the Newtonian viscous case, an explicit finite-difference scheme does not fulfil von Neumann’s condition for numerical stability. How this fact does not contradict the existence of Somigliana’s analytical solution is explained. A procedure is given which delays the onset of instability and allows velocities at shallow depths to be determined.Keywords
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