AQA AS Geography Coasts: Mindmap 1
- Created by: jennywoolcock
- Created on: 15-10-16 15:32
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- Physical Geography
- A model is a term used to understand a complex idea in a simpler form.
- Inputs
- Outputs
- Transfers
- Boundaries
- Open system: inputs come from other natural systems as well as outputs to other systems.
- Closed system: has no new inputs or outputs.
- Open system: inputs come from other natural systems as well as outputs to other systems.
- Every system has...
- Energy eg. flowing water, gravity or wind
- Stores/components eg. beach, sediment
- Cascading system: the flow of energy and/or matter from one sphere to another.
- Atmosphere
- Lithosphere
- Hydrosphere
- Biosphere
- Zones of a coast
- Backshore: the area between the high water mark and landward limit of marine activity
- Foreshore: This is the area lying between the high water mark and the low water mark.
- Inshore: the area between the low water mark and the point where the waves cease to have any influence on the land around them (end of beach)
- Offshore: the area beyond the beach where activity is limited to the deposition of sediment.
- HOW TO REMEMBER: Big Fish In Ocean
- Formation of a wave
- 1. Open ocean
- 2. Small circular movements in the water
- 3. Water approaches coast.
- 4. Friction from the sea bed slows the bottom of the wave.
- 5. Water is pushed up.
- 6. Height of wave increases.
- 7. Upper part of the wave travels faster than the base
- 8. Front of wave becomes steeper
- 9. Wave falls forward and breaks
- 8. Front of wave becomes steeper
- 7. Upper part of the wave travels faster than the base
- 6. Height of wave increases.
- 5. Water is pushed up.
- 4. Friction from the sea bed slows the bottom of the wave.
- 3. Water approaches coast.
- 2. Small circular movements in the water
- 1. Open ocean
- Flow or transfer
- Dynamic equilibrium: this represents a state of balance.
- Positive feedback: where a flow or transfer leads to an increase or growth.
- A model is a term used to understand a complex idea in a simpler form.
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