- Freeze-thaw weathering is a geomorphic process.
- Colder temperatures lead to more freeze-thaw cycles.
- This means more rocks are being broken up.
- Frost heave is also affected by climate change.
- A decrease in temperature results in more stones rising towards the surface.
- This is because more water us freezing in the active layer, pushing more stones up.
- Ground ice development is another geomorphic process affected by climate change.
- When there is more ablation in the summer, it percolates into the sub-surface where it accumulates.
- During the winter it freezes and expands.
- This forces the surface upwards since it can't extend into the permafrost below.
THESE INFLUENCE PERIGLACIAL LANDFORMS, E.G. PINGOS, AND PATTERNED GROUND.
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