Sea level change
- Created by: Sharon
- Created on: 16-04-15 20:37
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- Sea level change
- Eustatic
- Change that occurs on global scale. +ve or -ve. Sea moving.
- Isostatic
- Change that occurs on local level, +ve or -ve. Land movement
- Readjustment is when land springs up due to melting glaciers.
- Submergent features
- Rias
- rising sea levels drowning river valleys - higher dry land = rias
- Fjords
- drowned glacial valleys - steep sides U shaped, lower parts cut to sea level.
- Rias
- Emergent features
- Raised beaches
- When former wave cut platform is deposited on and sea levels decrease the beach remains
- Sloped over wall cliff
- When sea level decreases cliff builds up, then increases and erosion. leaving sloped beach
- Raised beaches
- Impact Present and predicted increase
- Primary: Increased erosion. & Risks of flooding
- Secondary: Threat to livelihoods and health. & Food production & living standards
- Relocation of many settlements - pressure on governmnts
- Decline in land & house values
- Threats to majour infrustructure
- Threat to services along coast (oil)
- Increased money on protecting coast
- Threats to culture way of life
- Eustatic
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