L7- Sea-ing the bigger picture Flashcards
What does ICZM stand for?
Integrated Coastal Zone Management
What is the name of the process of managing the coast using an integrated approach?
Integrated Coastal Zone Management
What 3 factors do holistic approaches to coastal management take into consideration?
Social, Environmental and Economic impacts
What is the general aim for coastal management approaches?
To make the coastline more sustainable
Is “do nothing” an example of a holistic approach?
Yes
Can everyones views on coastal management be fully integrated?
Unfortunately, no
Where along the UK coastline is Barton on Sea?
Down South. Under New Forest National Park
Name the 3 characteristics/layers of a cliff.
Top layer- soil (quartz, sand, clay) and brick earth
Middle layer- fossils, deposited by the sea
Bottom layer- silty clay, impermeable
Why does vegetation grow on the bottom layer of the cliff?
Because it is impermeable, so most of the surface water moves towards the beach so vegetation is able to grow.
What does impermeable mean?
Not allowing fluid to pass through
Name 3 cliff face processes.
- running water
- mass movements
- wind
What is the approx. rate of erosion in meters (m) in Barton?
60-90m/per year
What is the purpose of boulders as sea defences?
To absorb the incoming wave energy and prevent it from eroding the cliff.
State the disadvantages with sea walls.
- non effective in the long term
- they reflect waves rather than absorb the energy
- they increase scour at the base of the wall
- can only be maintained if groynes are present
What is the biggest threat to people living in Barton on sea?
Cliff erosion and mass movement
