06 Coastal Management

What is a hard engineering coastal management strategy?

• Using artificial structures to control natural processes

• Using natural processes to protect the coast

• The controlled retreat of the coastline

• The controlled advancement of the coastline

What is a soft engineering coastal management strategy?

• Using artificial structures to control natural processes

• Using natural processes to protect the coast

• The controlled retreat of the coastline

• The controlled advancement of the coastline

Which of the following are examples of hard engineering?

• Sea walls

• Rock armour

• Groynes

• Beach nourishment

Which of the following are examples of soft engineering?

• Sand dune regeneration

• Gabions

• Beach reprofiling

• Beach nourishment

How do sea walls protect the coast?

• Reflect wave energy back out to sea

• Large boulders absorb wave energy by slowing down the waves

• Trap sediment carried by longshore drift, building up the coast

• Wire cages filled with rocks support cliffs and absorb wave energy

How does rock armour protect the coast?

• Reflect wave energy back out to sea

• Large boulders absorb wave energy by slowing down the waves

• Trap sediment carried by longshore drift, building up the coast

• Wire cages filled with rocks support cliffs and absorb wave energy

How do groynes protect the coast?

• Reflect wave energy back out to sea

• Large boulders absorb wave energy by slowing down the waves

• Trap sediment carried by longshore drift, building up the coast

• Wire cages filled with rocks support cliffs and absorb wave energy

How do gabions protect the coast?

• Reflect wave energy back out to sea

• Large boulders absorb wave energy by slowing down the waves

• Trap sediment carried by longshore drift, building up the coast

• Wire cages filled with rocks support cliffs and absorb wave energy

How does beach nourishment protect the coast?

• Adding sediment to the beach, which acts as a barrier against erosion

• Stabilises the sand with plant roots

• Moving sediment up the beach to reduce the impacts of erosion

• The retreat of coastal management methods, allowing the land to flood naturally

How does dune regeneration protect the coast?

• Adding sediment to the beach, which acts as a barrier against erosion

• Stabilises the sand with plant roots

• Moving sediment up the beach to reduce the impacts of erosion

• The retreat of coastal management methods, allowing the land to flood naturally