1602833
Descrição
Mapa Mental por louise.howard22, atualizado more than 1 year ago
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Criado por louise.howard22
quase 12 anos atrás
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Geography: Hard and soft engineering
- Hard
- Man made structures built to control
the flow of rivers and reduce flooding
- Dams + Reservoirs
- Dams: Huge walls -
Across rivers - Upper course
Reservoirs: Artificial lake - Behind
dam
- R: Store water - Drinking water - HEP
- Expensive - Flood existing settlements - Eroded
material deposited - Farmland less fertile
- Dams: Huge walls -
Across rivers - Upper course
Reservoirs: Artificial lake - Behind
dam
- Channel straightening
- Course straightened -
Artificial channeled
- Moves out of area quickly
- Dis: Flooding downstream - Erosion
downstream
- Course straightened -
Artificial channeled
- Man made structures built to control
the flow of rivers and reduce flooding
- Soft
- Schemes set up using knowledge of a river and its
processes to reduce the effects of flooding
- Flood warnings
- Environment agency warn people through radio + TV
- Time to remove items - Put sandbags out - Evacuate
- Difficult to get insurance - Might not have access to warnings
- Environment agency warn people through radio + TV
- Preperation
- Modify buildings - Reduce damage - Plans
- Less damage - Less worry
- Less damage - Less worry
- Doesnt guarantee safety - False sense of
security - Expensive
- Modify buildings - Reduce damage - Plans
- Flood plain zoning
- Prevent building on areas
- No impermeable surfaces
- No impermeable surfaces
- Expantation limited
- Prevent building on areas
- Do nothing
- No money spent - Fertile land
- Risks not reduced
- No money spent - Fertile land
- Schemes set up using knowledge of a river and its
processes to reduce the effects of flooding
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