384488
Description
Mind Map by roblowry28, updated more than 1 year ago
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Created by roblowry28
over 10 years ago
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Christchurch bay- coastal management
- Soft engeneering
- Sand dunes
- very discrete and pleasant to look at
- they are mounds of sand that are
locked down by marram grass, they
stop the waves getting to much
further up the beach
- stop waves reaching the beach huts at mudeford spit
- very discrete and pleasant to look at
- Beach replenishment
- At Hengistbury head in winter 05/06
- Sediment it taken from one beach
and put onto another that needs it
- used because sediment is lost through LSD
- At Hengistbury head in winter 05/06
- Sand dunes
- Hard engineering
- Groynes
- Advantages: Prevents the movement of beach
material along the coast by longshore drift. Allows the
build up of a beach. Beaches are a natural defence
against erosion and an attraction for tourists.
- Disadvantages Can be
seen as unattractive.
Costly to build and
maintain.
- there is many at
hengisbury head creating
banana beaches
- Advantages: Prevents the movement of beach
material along the coast by longshore drift. Allows the
build up of a beach. Beaches are a natural defence
against erosion and an attraction for tourists.
- Gabions
- Rocks in a metal mesh
cage that take the energy
out of the waves
- absorb wave energy
- protects the land behind it
- Allows the build up of the beach
- Rocks in a metal mesh
cage that take the energy
out of the waves
- Groynes
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