Factors responsible for coastal processes & landforms
- Created by: Abbie Roberts
- Created on: 07-05-13 22:02
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- Factors responsible for coastal processes & landforms
- Coastline factors
- Rock type; soft rocks erode more easily by wave processes but this adds to the load.
- Structure; Rocks which are poorly consolidated are more likely/easy to erode. Hard rocks need weaknesses before they can be eroded.
- Trend of coast;discordant or concordant. Rocks outcrop at various angles in discordant coastlines.
- Human factors; Are coastlines sufficiently protected? Cliff top erosion-Stress from human activities on top of cliffs which cause landslides.
- Wave factors
- Wave shape; either constructive (little backwash so deposits material) or destructive (strong backwash so more potential of erosion).
- Wave size; larger waves tend to plunge and so, they erode.
- Fetch; the longer the fetch=greater energy (more potential for erosion).
- Roughness; friction between the wave and the seabed slows waves down so has potential to increase deposition, preventing erosion.
- Depth; Deep water is less likely to deposit as it will have more power (currents) to erode, especially during storm events.
- Tide; large tidal range leads to deposition especially within shallow water.
- Coastline factors
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