Skip to main content

Map analysis techniques for glaciological applications

Buy Article:

$55.00 plus tax (Refund Policy)

This paper presents map analysis of digital elevation models for glaciological applications. The approach has been to combine spatial information describing the geometry of the glaciers with physical models of glaciological processes and to adjust empirical parameters to give a best fit with field observations. This applies to description of the basal shear stress and the resulting flow due to deformation of the ice. The outputs display spatial distributions, which can be adjusted to field observations through flexible routines of averaging the geographical information. Further, this approach is applied to description of the potential driving water along the bed, defined by the basal topography of the glacier and a model assuming that the basal water pressure is related to the thickness of the ice. The results produce predictions of the location of subglacial waterways and their drainage basins, which can be adjusted to field observations by choice of an empirical parameter, giving the basal water pressure as a fraction of the ice overburden pressure. A routine is presented that integrates the meltwater contribution downglacier to the various river outlets, given the glacier surface ablation.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2000-09-01

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more