Geography - Coastal Flooding Case Studies - Mindmap in GCSE Geography

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Created by: Ellome Anistan
Created on: 07-06-18 18:37

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Coastal Flooding
- Norfolk Coast
  - Causes
    - High Spring Tide
    - Strong Northerly Winds
    - Area of Low Pressure
  - Effects on People
    - 200 houses evacuated before flood
    - 152 houses and businesses were damaged as a result.
    - Drinking water contaminated => flooding of sewers
    - Killed 2 people
    - Most of the houses were on the coast => fell into sea because of mass movement
  - Effects on the Environment
    - Damage to sea defences, chalets and beach huts in the area
    - Rats in flooded properties
    - 239 Sea Otters stranded because of 18m waves
  - Location
    - North East of England
- Chiswell, Portlland
  - Location
    - South of England
  - Effects on People
    - 25, 000 people cut of from mainland
    - 18m waves crashed on 3 storey building => smashed windows & flooded area
    - Road to Portland closed twice in winter
    - Farmland flooded
  - Effects in Environment
    - Lowland areas flooded
    - Headlands and beaches washed away
      - Water weakens area
  - Causes
    - Storm Surge
    - Rising Sea levels.
- 1) Coastal Flooding: Is the inundation of land close to the sea by sea water.
- 2) It is when low-lying land is flooded by water.
- 3) Causes include tsunamis and reclaimed land.
- 4)Storm Surges are sudden rises in sea levels caused by string winds in hurricanes and cyclones.
- 5) Strong winds create large, powerful waves that can overcome sea defences
- 6) If rising sea levels doesn't flood coastline, waves will.
- 7) These storms are most dangerous during high tide since sea level would have already risen.