Coastal Management

Question 1

Four options

Answer 1

1) hold the line - maintain the existing coastal defences

2) advance the line - build new coastal defences further out to sea than existing line of defenses

3) do nothing - build no coastal defences and deal with erosion as it happens

4) retreat the line - build no coastal defences but move people away from the coast

Question 2

Rock armour

Answer 2

Large booklets piled up. Absorbs wave energy.

Question 3

Gabions

Answer 3

Rock filled cages. Absorb wave energy and reduces erosion. Allows waves to percolate

Question 4

Groynes

Answer 4

Built at right angle to the coast. Trap beach material transported by longshore drift. Creates wider beaches. Slows the waves and gives greater protection from flooding and erosion

Question 5

Beach nourishment

Answer 5

Replace material that has been lost through longshore drift. Creates wide beaches. Reduce erosion

Question 6

Beach stabilisation

Answer 6

Reduce slope angle and planting vegetation or sticking stakes or tree trunks to stabilise the sand.

Question 7

Rising sea levels

Answer 7

More coastal management will be needed to protect coastal settlements and developments

Question 8

Shoreline management plans

Answer 8

Sediment cells around the UK define a distinct management zone for which a smp has been written. Intervention will be largely self contained within each cell.

Question 9

Integrated coastline management

Answer 9

Brings together all those in the development management and use of the coast. Establish sustainable levels of economic and social activity.