Cryospheric Processes Flashcards
1
Q
2 main cryospheric processes?
A
Accumulation
Ablation
2
Q
How many glacial periods has there been in earths history ?
A
5
Most recent started 2.58 million years ago and continues today - quaternary glaciation.
3
Q
What was it like during glacial periods ?
A
Sea level 120m lower than present.
Continental glaciers covered Europe / n. America
Suspends hydrological cycle
4
Q
What was it like during interglacial periods?
A
Ablation exceeds accumulation.
Hydrological cycle returns.
