Coastel Protection

Question 1

Name 4 ways of coastal protection

Answer 1

Sea walls
Rock armour
Groynes
Gabions

Question 2

Explain sea walls

Answer 2

Break power of incoming waves .curved tops push waves back out to sea e.g salthill in Galway

Question 3

Explain rock armour

Answer 3

These are large boulders at the base of a cliff or in front of sand dunes. When a wave breaks, : it hits the rock armour and loses energy. This reduces the erosion of the coastline.e.g tramore co.Waterford

Question 4

Explain groynes

Answer 4

Groynes are concrete or wooden structures built
at right angles to the coastline. They extend down the shore and into the sea. They are designed to trap sediment carried by longshore drift. This ensures that sand builds up on the beach rather than being removed from it. E.g rosslare strand

Question 5

Explain gabion

Answer 5

Gabions are wire cages filled with small stones.
They are placed in front of beaches or sand dunes
to break the power of the waves and slow down erosion. E.g lahinch co.Clare

Question 6

Gabion example

Answer 6

Lahinch Co. Clare

Question 7

Groyne Example

Answer 7

Rosslare strand Co.Wexford

Question 8

Rock armour example

Answer 8

Tramore co.Waterford

Question 9

Sea walls example

Answer 9

Salthill in Galway