Geography A-Level
Active layer
What Active layer means in Geography A-Level, as defined for AQA.
Definition of Active layer
Check what you remember
Read the wording for your board, then hide it and explain Active layer in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The layer above the permafrost which thaws during the brief summer and freezes in winter.
Topics that use Active layer
- Systems and processes (AQA A-Level)
Related terms
- Ablation
- Accumulation
- Climate change impacts
- Cold-based glaciers
- Mass balance
- Meltwater dynamics
- Nivation
- Sediment sorting and stratification
Using Active layer in the exam
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