Crowded Coasts
Crowded coasts part 1
- Created by: victoria laker
- Created on: 18-02-14 06:45
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- Crowded Coasts- Process and Population Growth
- Physical Factors Creating Coastal Environments
- Sub-aerial weathering
- Erosion
- Quarrying: The energy of a wave as it breaks against a cliff is enough to detach bits of rock.
- Longshore Drift: Current move material along the coast.
- Water
- Waves
- Waves are created by wind blowing over the sea. The friction between them creates circular motions
- The effect of the wave depends on its height. The height is affected by wave speed and the Fetch.
- When waves hit shore they break, friction with the sea bed slows the base of the wave and they become more squashed and oval-shaped.
- Waves are created by wind blowing over the sea. The friction between them creates circular motions
- Waves
- Physical Factors Creating Coastal Environments
- Constructive waves have low frequency. They're low and long, which gives them more elliptical cross profile. The powerful swash carries material up the beach and deposits it.
- Waves
- Waves are created by wind blowing over the sea. The friction between them creates circular motions
- The effect of the wave depends on its height. The height is affected by wave speed and the Fetch.
- When waves hit shore they break, friction with the sea bed slows the base of the wave and they become more squashed and oval-shaped.
- Waves are created by wind blowing over the sea. The friction between them creates circular motions
- Waves
- Destructive waves are high and steep and a circluar cross profile with higher frequency with a strong backwash.
- Tides effect where waves break between high tide and low tide create and destroy landforms
- Water
- Water
- Throughflow and runoff from heavy rain makes cliffs unstable and more mase movement
- Sub-aerial weathering
- Hydraulic action: Air in cracks in cliffs is compressed when waves crash in. the pressure from compressed air breaks off rock pieces.
- Erosion
- Quarrying: The energy of a wave as it breaks against a cliff is enough to detach bits of rock.
- Longshore Drift: Current move material along the coast.
- Erosion
- Attrition: Bits of rock in the water smash against each other and break into smaller pieces.
- Coastal Population Growth
- Crowded Coasts- Process and Population Growth
- Physical Factors Creating Coastal Environments
- Physical Factors Creating Coastal Environments
- Development
- Scenery of coast line attracting tourists e.g. Jurassic coast.
- Nutrient-rich alluvium deposit makes soil very fertile on flood plains e.g. the Nile.
- Research and Feildwork
- Crowded Coasts- Process and Population Growth
- Natural Harbours allow easy access for X and M.
- Development
- Scenery of coast line attracting tourists e.g. Jurassic coast.
- Nutrient-rich alluvium deposit makes soil very fertile on flood plains e.g. the Nile.
- Development
- Estuaries allow access for ships; encouraging port development.
- Attractive beaches with good climates bring in tourists.
- Coastal ecosystems have high biodiversity E.g. the Great barrier reef.
- Why move
- Increase in fishing tourism and industrial development increase population because attracted to live there with opportunity for employment.
- Look at historical documents and maps, showing how land use has change over time.
- Research and Feildwork
- Find out population number and past census to find population rate of change.
- Look at local newspapers which may have development projects which may be trying to increase population.
- Carry out a land use survey looking for visible evidence of economic development
- Find out peoples reasons for moving/ visiting through a survey
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