Characteristics of ice movement - Velocity profile of glaciers Flashcards
1
Q
Why is ice movement slower at the sides of the glacier?
A
The rate of ice movement is slower at the sides due to resistance to gravity from friction with the valley sides.
2
Q
Define the term albedo?
A
Albedo refers to the proportion of the total solar radiation which is reflected by the Earth’s surface, expressed as a decimal or percentage.
3
Q
Why is ice flow faster at the glaciers surface?
A
Ice flow is faster at the glaciers surface where there is more unimpeded flow, whereas obstacles at the bed slow down basal ice.
