rates of erosion

Question 1

what are the factors which influence rates of erosion?

Answer 1

breaking point of a wave
waves steepness
depth of sea
length and direction of fetch
supply of beach material
beach morphology
rock resistance and structure
human activity

Question 2

how can breaking point of a wave increase rates of erosion?

Answer 2

a wave that breaks as it hits the foot of the cliff releases most energy and causes maximum erosion

Question 3

how can wave steepness increase rates of erosion?

Answer 3

highest energy waves associated with longer fetch distances have a high steep appearance. they have greater erosive power

Question 4

how can depth of sea increase rates of erosion?

Answer 4

a steeply shelving beach creates higher and steeper waves then one with a gentler gradient

Question 5

how can length and direction of fetch increase rates of erosion?

Answer 5

the longer the fetch the greater time available for waves to collect from the wind