Coastal Defences Flashcards
1
Q
Sea walls
A
Concrete walls at the back of the beach.
Stop the waves coming over the top and damaging buildings.
2
Q
Groynes
A
Long fences made of heavy wood
Trap sand moving away by longshore drift
3
Q
Gabions
A
Wire meshed boxes filled with stones
Bottom of cliffs absorb and breakup waves energy
4
Q
Beach nourishment
A
Large amounts of sand are brought onto the beach and deposited to help make a wider or deeper beach to protect the land behind it by absorbing the waves energy.
