coasts L13 SIDS

Question 1

WHAT ARE SIDS?

Answer 1

Small Island Developing States

(39 of them)

Question 2

SIDS #1 TUVALU

Answer 2

9 small islands
12000 population
60 mil GDP
british colony

low lying land and narrow coral atolls

sea walls
plant crops
reclamation by dredging

Question 3

SIDS #2 HAITI

Answer 3

28000 sq km
population 12 million
$20 billion GDP
former french colony

rough and mountainous
limestone & sandstone

integrated management of coastal zone
management of water resources

Question 4

SIDS #3 MALDIVES

Answer 4

300 sq km
population 400000
£12 billion GDP

CORAL ATOLLS
30mm per year sea level rise

houses on stilts
wall around capital
refurbishing infrastructure

Question 5

HALLSANDS DEVON 1917

Answer 5

example of how humans disrupt dynamic equilibrium

• 1917, plans to remove pebbles and sand from offshore berm in order to be used in construction
• during the WINTER the entire village was destroyed by the sea and houses were washed to sea over a few days

Question 6

HOW DOES CLIMATE CHANGE INCREASE COASTAL FLOODING RISK?

Answer 6

1. Eustatic change
2. Ocean Acidification
   - more co2 absorbed by oceans makes the PH of the water (7.9) acidify
   - more solution will occur and lead to rapid erosion
3. Extreme Weather
   more flooding = more weathering
4. Ecosystem Damage
   -ocean acidification destroys coral reefs vital to natural protection of SIDS
   - harder for mangrove forests to grow in unpredictable weather

Question 7

in the UK there should be 5 severe storms per year, how many were there last year?

Answer 7

13