Coastal Processes

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4.0 Coastal Processes and Pressures

Destructive waves attack coasts whereas constructive waves add sediment to the shore.
Wave size is determined by wind speed, wind strength how far the wave has travelled (fetch.)
As a wave breaks water surges up the beach (swash) and then returns down the beach to the sea (backwash.)

Destructive Waves

Constructive Waves

Size

High and close together

Low and far apart

Profile

High a...

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