Ice Streams
Bed-Surface Relation
- Transfer-functions
Transfer-functions are used to relate the condition at the bed to the
surface. For more information look at WAIS'99 pages below.
Flow Law
- Comparison of temperature, stress dependence and
anisotropy effects
Temperature change from 0 to -25 C causes a change of viscosity by a factor
of 72. Anisotropy causes a factor of 9 change in viscosity (max ??). For n=3
in stress dependence a change of stress from 0.1 bar to 1 bar causes a
change in apparent viscosity by a factor of 100.
Papers
Presentations
|
Ísstraumar
Bed-Surface Relation
Relating conditions at the bottom of ice
streams to surface topography.
The surface of ice streams is effected by the conditions at the bed, be it
topography (a bump) or changes in slip resistance. This link leads to an
Animation of a generation of a flow stripe due to a bedrock bump.
Transfer-functions
Transfer-functions are used to relate the condition at the bed to the
surface. For more information look at WAIS'99 pages below.
Flow Law
Comparison of temperature, stress dependence and
anisotropy effects
Temperature change from 0 to -25 C causes a change of viscosity by a factor
of 72. Anisotropy causes a factor of 9 change in viscosity (max ??). For n=3
in stress dependence a change of stress from 0.1 bar to 1 bar causes a
change in apparent viscosity by a factor of 100. |
