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DENSE FLOW AVALANCHE [1 record]

Record 1 2012-08-23

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
CONT

After a soft slab release, disintegration of the slab and air entrainment are very rapid and as the avalanche develops much of the mass is suspended well above ground level. As a result of the increased mean distance between snow particles in the flowing/air suspension, flow height increases, velocity increases, the avalanche assumes the form of a fluid ... In some cases a large mass of the flowing snow is whirled into suspension and held above ground level by turbulence as a powder avalanche. The denser mass, comprised of large snow particles, remains closer to the ground and is called a flowing avalanche.

OBS

Most avalanches have a flowing component which consists of relatively dense snow flowing down the slope.

PHR

Dry flowing avalanche.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Avalanche de neige coulant au sol dans sa phase d'écoulement et qui est donc astreinte à suivre le relief.

OBS

La majeure partie des avalanches appartiennent à cette classe d'écoulement.

Spanish

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