Geography- Flood risk

  • Created by: aleena147
  • Created on: 14-11-19 21:01

Factors increasing flood risk

What causes flooding?

-long periods of rain

-sudden floods called flash floods occur in summer and are associated with heavy rainstorms

-physical and human factors aswell:


Precipitation- torrential rainstorms

Geology- impermeable rocks dont aloow water to pass through, so it flows over land into river channels 

Relief- steep slopes means water flows quickly into river channels 


Urbanisation- impermeable surfaces e.g. tarmac roads,


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