Coasts Overview
- Created by: GeorgiaTimbey
- Created on: 06-02-19 16:31
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- Coasts
- Waves
- Destructive
- High wave in proportion to length
- Breaks downward with great force
- Weak swash
- Strong backwash
- Constructive
- Strong swash
- Weak backwash
- Low wave in proportion to length
- Size and Energy depends on...
- the fetch
- the strength of the wind
- how long the wind has been blowing for
- Destructive
- Coastal processes
- Weathering processes
- Freeze-thaw Weathering
- Biological Weathering
- Chemical Weathering
- Mass movement
- Rockfall
- Mudflow
- Landslide
- Rotational slip
- Erosion Processes
- Hydraulic Action
- Abrasion
- Attrition
- Solution
- Transportation Processes
- Longshore drift
- Solution
- Suspension
- Saltation
- Traction
- Deposition
- Waves lose energy and slow down
- Shallower water
- Sheltered areas
- Little or no wind
- Weathering processes
- Landforms
- Erosional
- Headland
- Wave-cut platform
- Cave
- Arch
- Stack
- Stump
- Depositional
- Spit
- Bar
- Erosional
- Engineering Strategies
- Hard
- Sea Wall
- Groynes
- Gabions
- Rock Armour
- Soft
- Beach Reprofling
- Dune Regeneration
- Beach Nourishment
- Managed Retreat
- Hard
- Dune formation
- 1. Sand accumulates against a feature
- 2. Wind speed decreases behind, increasing deposition
- 3. Marram Grass colonises and stabilises the embryo dunes
- 4. Wind speed decreased, increasing deposition. More sand captured
- Embryo, Fore, Yellow, Grey, Dune slack
- Waves
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