Impact of coastal management Flashcards
1
Q
overview
A
Coastal management has a variety of impacts on sediment cells and any form of intervention will cause some kind of impact.
Installing a sea wall would reflect wave energy downdrift increasing wave energy and erosion elsewhere on the coastline. Less erosion occurs in these areas with the sea wall, so there is also less sediment in the areas with increased wave energy. Less sediment reduces the beach size, so the cliff is more exposed to erosion from the higher energy waves.
Building groynes has the same effect on downdrift areas as longshore drift can no longer transport sediment away from one stretch of coastline.
