Cumbria Flooding

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  • Cumbria Flooding
    • Background
      • Average rainfall in the UK ranges from 700mm to 2500mm
      • Heaviest rainfall recorded in UK fell on Cumbria in northern in 2009
      • Cause was a very deep Atlantic depression moving north eastwards over Scotland and northern England
    • Causes
      • Extreme Rainfall
      • Cumbria had already had a months worth of average rainfall before hand
      • Soil was already wet - new rainfall could not soak in
      • By November 20th, the river derwent was ten metres wider
      • Water flowed 25 times higher
    • Social Impacts
      • Police Officer was killed
      • Many more people were injured
      • 1500 homes were flooded
      • River contaminated with sewage- health risks
    • Economic Impacts
      • Regional economy instantly hit and many businesses closed
      • Tourism and agriculture- hiking, farmer will move animals
      • Did not open until long afterward
      • Debris transported by river destroyed 6 important regional bridges
    • Environmental Impacts
      • Water erosion by River Derwent triggered landslides
      • River tore loose and carried away hundreds of trees, damaging local ecosystems and habitats
    • How can management strategies reduce risk?
      • Climate change can cause these events to become more common
      • Flood defences
      • Mobile wall was built- rises when needed and disappears from view
      • The Environment Agency - warnings

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