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CLIP 14051

Avalanches – The behaviour of dry powder avalanches

Avalanches – The behaviour of dry powder avalanches
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Key Info
  • Avalanches – The behaviour of dry powder avalanches
  • Duration: 01:40
  • Professor Iain Stewart looks at how dry powder avalanches are unpredictable and often deadly. We see how scientists try to recreate their behaviour in laboratory conditions using powdered glass in water to enable predictions to be made of their potential range and speed. People die in avalanches and have less than 15 minutes to escape before the powdered snow suffocates them. A knowledge of the behaviour of this type of avalanche could help to save lives in the future. First broadcast in 'Ten Things you didn't know about.....Avalanches' on BBC4 in January 2008.
  • Subject:

    Geography

       Topic:

    Glaciation

  • Keywords: Iain Stewart, mountains, glaciation, avalanche, experiment, laboratory, hazard, powder, tenthingsyoudidntknowabout
Ideas for use in class
  • Could be useful as part of a unit of work on natural hazards, in a module on glaciation or teaching about how people live in mountain environments
Background details
  • Clip language : English
  • Aspect ratio : 16x9

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