- Located on the South coast of England, in the county of Hampshire
- More specifically, it's situated in Christchurch bay
- Due to its location, it is affected by the South Westerly wind
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Why is Barton on Sea being protected?
- The benefit gained from protecting the coast is greater than the financial cost of building them
The following human activities are being protected:
- Houses with high value
- Major settlements
- Historic buildings (churches and castles)
- Two links golf courses
- A main 'A' road and a large scale railway
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Why is erosion so severe at Barton on Sea?
- The construction of groynes from Bournemouth to Hengistbury Head has stopped long-shore drift therefore the beach at Barton on Sea has reduced in size
- This consequently leads to the erosion from the waves powered by a 6000km fetch on the cliff itself.
- The main reason for the rapid cliff retreat however is the rock structure of the cliff and the effect that sub-aerial processes have on it.
- When it rains, the water infiltrates through the permeable sand and is absorbed by the porous clay. Overtime, the clay becomes saturated until a slip zone is created between the sand and the clay.
- Because the pressure is too great, rotational slip occurs into the sea and the material is carried away by the sea exposing fresh rock and the process repeats itself.
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Strategies in place on the cliff to protect the pe
- De-watering drainage system
- Regraded slopes
- Vegetation on the cliff face
- Perforated drainage pipe drains
- Interlocking sheet piles
- Fan-shaped drains
- Rock armour
- Wooden groynes
Together these strategies help to: stabalise the cliff face, help filter the water, lessens marine erosion, lowers the effects of gravity on slumping.
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Coastal Management Strategies that would help
- Using a de-watering drainage system inland due to the large volumes of precipitation
- Regrading the slops to lessen the slumping effect
- Use lots of vegetation to keept the cliff face stable
- Use rip rap to reduce the power of the waves
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