Glaciation 1.2.1 - Quiz

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  • Created by: BluJay117
  • Created on: 29-09-18 13:26
A glacier is an example of what kind of system
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What affects the growth and retreat of a glacier?
The amount of precipitation put into the glacial system
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A positive regime occurs when...
Accumulation exceeds ablation
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Changes in mass balance affect the long term behaviour of a glacier. Explain:
Sustained positive or negative balances put the glacier out of equilibrium and will cause the glacier to advance or retreat respectively
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Equilibrium can be restored to the glacier when one of two things occur. What are those two things?
Calving losses, and the loss of the lowest portion reducing ablation
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What is the key symptom of a glacier in disequilibrium with its local climate?
Thinning along the entire length of the glacier
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Give an example of a positive feedback loop within a glacial system
As the climate warms sunlight is absorbed where dark soil is exposed; light absorption speeds us warming, exposing more dark soil.
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Other cards in this set

Card 2

Front

What affects the growth and retreat of a glacier?

Back

The amount of precipitation put into the glacial system

Card 3

Front

A positive regime occurs when...

Back

Preview of the front of card 3

Card 4

Front

Changes in mass balance affect the long term behaviour of a glacier. Explain:

Back

Preview of the front of card 4

Card 5

Front

Equilibrium can be restored to the glacier when one of two things occur. What are those two things?

Back

Preview of the front of card 5
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