waves Flashcards
1
Q
what is fetch
A
the distance wind travels over the water
2
Q
what are constructive waves
A
- summer
- depostional
- weak backwash
- strong swash
- less frequent
3
Q
what are destructive waves
A
- winter
- erosional
- weak swash
- strong backwash
- frequent
4
Q
what is wave refraction
A
- approach an irregular coastline
- process of waves becoming parallel to the coast
- waves approach headland, slow down due to shallow water
- deeper water= continue fast as not affected by friction
- waves approach bay, diverge and reduction in energy causing deposition
- headland, waves refract and direction converge, concentration in energy and erosion
