Coastal Management: Pevensey Bay
- Created by: oliviab2014
- Created on: 20-02-14 10:29
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- Coastal Management: Pevensey Bay
- Beach Replenishment
- Alongshore drift moves beach material along the coast
- Pevensey Bay is losing up to 25,000 cubic meters of beach material each year
- In order to mantain beach levels 5,000 cubic meters of sand and gravel are trasnferred by lorry from further west
- And another 20,000 cubic meters is taken frmo teh sea bed and sprayed back onto the beach
- Beach Recycling
- Beach sediment drifts West to East, some parts of the beach lose sediment and others gain sediment.
- Done in the winter months when movement is greatest.
- To try to even out the natural movement, material is moved from areaswhere it has built up and put it back in its orignial position.
- Done in the winter months when movement is greatest.
- To try to even out the natural movement, material is moved from areaswhere it has built up and put it back in its orignial position.
- Beach sediment drifts West to East, some parts of the beach lose sediment and others gain sediment.
- Beach Reprofiling
- During winter months, beach material is carried down the beach by strong backwash
- This leaves the upper beach vunerable for erosion
- Bulldozers are used to push material back up the beach to create a gentle sloping beach profile
- During winter months, beach material is carried down the beach by strong backwash
- Beach Recycling
- The natural process at Pevensey Bay acts like a converoyr belt.
- Beach material is used West to East resulting in the western beach becoming increasingly depleted
- 3 times a year large trucks are sued to move the beach material
- The beach material collects to the east of the beach and mvoed to the west
- The natural process at Pevensey Bay acts like a converoyr belt.
- Beach Replenishment
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