Coastal System
- Created by: Sharon
- Created on: 16-04-15 11:21
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- Coastal system
- Waves
- As reach shore circular motion, wavelength and velocity decrease,forward motion=steepens
- Constructive
- low waves, long wavelength, low frequency, weak backwash insufficient force too pull.
- Destructive
- High waves, steep, high frequency,powerful backwash, steepens beaches.
- Tides
- Neap- Sun and moon opposite (90) small tide range
- Spring- When sun and moon aligned
- HWST HWNT MWL LWNT LWST
- Sediment source and cells
- Sediment cell is an area in which LSD moves sediment nearshore zones broken by litoral drift dividers (11 England)
- Sediment sinks are where sediment transport paths meet sediment build up
- INPUT - erosion, river, waves,deposition.
- TRANSFER - LSD, Currents, Saltation
- STORES - Estuary, Dredging, Beaches, Dunes, Bars, Canyon.
- TRANSFER - LSD, Currents, Saltation
- Waves
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