Case Studies- Coasts Flashcards
North Sea surge 2013
Winds up to 140mph
2500 coastal homes flooded
15 deaths across all countries
100,000 homes lost power
Storm surge reached a height of 4m in Dover
Corresponded with high tide so was made worse
Fjord- sogne fjord Norway
Fjord is a u shaped valley flooded by seawater due to sea level rise
Ria- Plymouth Cornwall
Ria is a long, narrow inlet formed by the partial submergence of a river valley.
Dalmatian coastline- Croatia
A drowned coastline where the main relief trends run parallel with the line of the coast
Factors affecting erosion- Holderness coast
Long wave fetch Large destructive waves Soft geology Cliffs and structural weaknesses. E.g. Cracks Mass movement Strong longshore drift
Hard engineering- Lyme Regis
South west England in Dorset
Population of 4400 that increases to 14000 in summer
Tourism is largest income
Vulnerable to erosion as town is built on shale rock
Spent 1.4 million In a plan to stabilise behind the harbour
Recurved sea walls
Improved sewage systems
Hold the line - hornsea and mappleton so the position of shoreline remains the same over a period of time
8500 people live their
Preserve historical sites like the medieval village
Maintain rock armour and groynes
Areas in between Hornsea and mappleton will be in danger but is considered marginal in the grand scheme
In mappleton by 2100 up to 400m of land will be lossed
No active intervention- happisburgh
1600 people in 600 houses
In 10 years the cliffs receded over 100m
Sustainable management- Maldives low lying islands
Main sources of income are fishing and tourism
Rising sea level means coral reefs destroyed which are attractions and habitats
2 active charities are mangroves for the future and nature for all
Conflict could occur between organisation and governments for which areas to improve with limited income
