Coastal Management Case Studis Flashcards
Where is Essex marshes?
South in east anglia
Why is coastal management needed in Essex?
Sea levels rising by 6mm per year. Eustatic and isostatic
What is the Essex management scheme?
Retreat the line. Breaching ineffective sea wall in 2002. Allowing salt water to cover the land that was once stopped by wall to protect elsewhere.
Benefits of Essex marsh management scheme
Low costs and sustainable
£500,000 saved in defences
Act as natural flood defences e
Why is the holderness coast facing so much erosion?
Long fetch from arctic
North made of chalk- dissolves in water so provides little sediment for protection
Eustatic sea level rise
Narrow beaches
Boulder clay easily eroded further south- 1.5-2m/year
Where is the holderness coast?
East coast, SMP 2
What management is at mappleton
Hold the line Groynes Rock armour Beach nourishment Management = successful
What has happened at great cow den
Further south, increased erosion due to management at mappleton
Do nothing.
LSD removing material but groynes stopping LSD adding material
Beaches are narrower =accelerated coastal erosion
Where is odisha?
South east of India bordering Bay of Bengal
Why is odisha facing flooding
Low lying coastline- increased zone of wave attack
Eustatic
Risk of tropical storms
Indian Ocean large fetch
Building of ports in north has stopped natural flow of sediment
What manages odisha coast
Integrated coastal zone management
How is odisha coast managed and why benefit?
Nearly 1500km2 mangrove forest
Protects from flooding as absorbs
Also can be used for medicine nd construction materials
