Geography Revision of Coastal Processes
Important 'wave' words:
Swash- the movement of water up the beach as a wave breaks.
Backwash- the movement of water down the beach as water from a wave returns to the sea.
Fetch- the length of the stretch of water that the waves have travelled across to reach the coast.
Prevailing wind- the direction the wind usually blows from.
Constructive and Destructive waves:
Constructive- these waves build up the beach because the swash is stronger than the backwash, they are often low waves in relation to their length.
Destructive- these waves erode the beach because the backwash is stronger than the swash, they are often high waves in relation to their length.
Erosion is the wearing away…