Introduction Flashcards
1
Q
What is the definition of accumulation?
A
The addition of mass through precipitation, usually snow.
2
Q
What is ablation?
A
The loss of mass through melt water, avalanches, sublimation and evaporation.
3
Q
What are the inputs of a glacier?
A
- Snow
- Hail
- Rain
- Debris
4
Q
What are the stores of a glacier?
A
- Ice
- Melt water
- Debris
5
Q
What are the outputs of a glacier?
A
- Melt water
- Calving
- Evaporation
6
Q
What are the stores of a glacier?
A
Stores are the mass that glaciers hold.
- Subglacial: underneath glacier
- Englacial: In the middle of the glacier
- Supraglacial: on top of the glacier.
7
Q
What is a positive feedback loop?
A
A process occurs, which causes another process to occur, which starts a chain reaction that heightens the first process.
8
Q
What is a negative feedback loop?
A
The process that occurs is counteracted by an opposing process, causing the effects to cancel each other out and nothing to change.
