Abstract
Ice-sheet modelling typically uses grid cells 10 km or more on a side, so any hydrological and sliding model must average or parameterize processes that vary over shorter distances than this. Observations and theory suggest that basally produced water remains in a distributed, high-pressure system unless it encounters low-pressure channel fed by surface melt. Such distributed systems appear to exhibit increasing water storage, water transmission and water lubrication of sliding with increasing water pressure. A model based on these assumptions successfully simulates some aspects of the non-steady response of mountain glaciers to externally forced channel-pressure variations; it merits testing in ice-sheet modelling.
Original language | English (US) |
---|---|
Pages (from-to) | 649-660 |
Number of pages | 12 |
Journal | Hydrological Processes |
Volume | 10 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1996 |
All Science Journal Classification (ASJC) codes
- Water Science and Technology