Cliff collapse- Barton-on sea, Hampshire
- Created by: Jenny Jones
- Created on: 16-04-14 18:44
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- Barton-on sea, Hampshire
- rate of coastal erosion = 1-2m per year
- Causes
- Physical
- rock type- weak sands and clays, easily eroded
- rock layers- permeable rocks lay on top of impermeable clay
- water builds up within cliffs -> increased weight on cliffs -> collapse
- prevailing wind- SW wind, hits coast directly
- waves have long fetch so very powerful
- surface streams disappear in permeable sands, adds to amount of water in cliffs
- Human
- buildings increase weight on cliffs
- buildings interfere with drainage
- Physical
- Responses
- groynes
- rock armour
- haven't stopped erosion or cliff collapse
- groynes
- haven't stopped erosion or cliff collapse
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