Case study coastal erosion
- Created by: Sharon
- Created on: 16-04-15 15:16
View mindmap
- Case study coastal erosion - HOLDERNESS
- Physical causes
- Rising sea levels = more pressure on foot of cliff
- soft glacial clays
- Seabed soft.
- beaches narrow.
- no protection of base of cliff in winter as no sand
- mass movement in high rainfall.
- Human causes
- Dredging - 2000 3,811,044 tonnes removed
- Defences such as sea wall groynes starve other areas of sediment and therefore protection.
- Physical consequences
- Development of a spit
- Eroded material = muddy appearance.
- Eroding 2m a year
- Roman times 5.5km seaward
- erosion = flood defences breached
- Lagoons suffering as starved of sediment form defences
- Socio-economic consequences
- Defences unattractive. Poorly managed as expensive
- Road repairs costly
- Roads lost to sea = impact on tourism
- Vast areas farmland lost to sea due to retreat
- Dredging leaves tourists starved of sandy beaches
- Mass movement dangerous
- 30 villages lost to sea
- Conflicts over what to protect
- Physical causes
Comments
No comments have yet been made