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7 Cards in this Set
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- Back
- 3rd side (hint)
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Erosion |
Erosion is the process of wearing away and breaking down rocks. There are three main types of coastal erosion: abrasion, attrition and hydraulic action |
Hydraulic action is where the sea water fills in the gaps where the cliff has already eroded, this will increase the air pressure causing the rock to weaken and eventually collapse. |
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Transportation |
Material travels and is deposited on the shore by long-shore drift (swash and backwash) |
A spit is formed as the cliff protects it from the wind, also the power of the sea and the river in the opposite direction cancels out |
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Deposition |
Materials of dropped off to the spit |
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Coastal Management |
Hard engineering = solid structure which resists the force of erosion. This can be ugly/expensive
Soft engineering = more environmentally friendly: social, environmental and economical. This can look natural.
Holistics = everybody has their point of view before making a decision. |
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Coastal Conflict |
Residents, Tourists, Conservation, Government, Local Authorities and Coastal Protection Agencies |
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Christchurch and North Norfolk Coastline |
Beach replenishment, groynes and sea walls were the main three things they did to manage the coast
Largest town is being protected H.A.R.D |
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Weathering |
Physical - it freezes, the rocks become weak and pressured. Chemical - acid rain and limestone react which dissolves the rocks Biological - weaken of the rocks Sub-aerial - Weathering |
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