Flashcards
Coastal Environments- Landforms & Defences
Flashcards do conjunto (17)
- 1Constructive Waves-Long Waves
-Strong Swash
-Weak Backwash - 2Destructive Waves-Result of stormy activity
-Waves break from a considerable height
-Strong swash
-Strong backwash - 3AttritionRocks and pebbles collide reducing the size of the material and smooths edges
- 4Hydraulic Pressure-Lack of beach materials causes cliffs to take force of the waves breaking
-Force air into the joints this compression causes rocks to loosen - 5Abrasion/CorrasionHigh energy allows waves to carry sediment and hurl it against the cliff face
- 6SlumpingSub-aerial processes attack the cliff top and is when the weak rocks (clay/chalk) become saturated the weight
- 7Promontory LandHighland area jutting out to sea (Headland)
- 8How is a stack formed?-High wave energy creates a promontory piece of land
-Cave/Arch
-Weight causes headland to fall leaving a solitary piece of rock - 9Swash-aligned Beaches-Waves approach parallel to the beach and the swash and backwash move sediment up sand down the beach
-Storms can result in offshore bars - 10Drift-aligned Beaches-Waves approach the coast at an angle
-Long-shore drift
-Groynes can help but cut off supply further down - 11TomboloDeposition of sediment joining the mainland to an island
- 12SpitsDepositional feature
-Wave direction causes a bending (finger like) structure - 13SMPShoreline Management Plan
- 14ICZMIntegrated Coastal Zoning Management
- 15Hard EngineeringMan-made structures put to prevent erosion to the coastline
-Sea wall/Groynes/Rock Bund/Gabions/Revetments/Offshore bars - 16Managed Retreat-Abandoning existing defences and allow flooding
-Defences implemented further in land - 17Soft EngineeringWork with natural processes to preserve the coastline
-Replenishment/Reprofiling
Informações
- Descrição
- A Level Geography AS (Coasts) FlashCards sobre Coastal Environments- Landforms & Defences, criado por Lucy Monger em 26-11-2014.
- Criado por
- Lucy Monger
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