- Created by: annamoshie1
- Created on: 03-03-19 20:25
Describe the backwash and swash of a destructive wave
strong backwash but a weak swash
Describe the backwash and swash of a constructive wave
weak backwash but a strong swash
What are the key characteristics of a destructive wave?
responsible for coastal erosion = produce headlands, bays, caves, stacks,wave-cut platforms, destroy beaches, found of steep beaches, break frequently: there are between 10-15 every minute, high in proportion to their length
What are the key characteristics of a constructive wave?
responsible for deposition = they form beaches, bars and spits , usually found on gently sloping beaches, break infrequently at a rate of 10 or less per minute, long in relation to their height
Where do headlands and bays form (at what angle to the waves)?
at discordant coastlines
What do bays encourage?
the deposition of material because they are quite sheltered
Explain the cycle of a cliff as a sequence
- the waves erode away at the cliff, by hydraulic action creating a wave-cut notch (like a hole in the cliff)