TERMIUM Plus®

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SUPER-WEAK LAYER [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2004-02-06

English

Subject field(s)
  • Glaciology
  • Climatology
  • Polar Geography
CONT

A widely accepted theory of slab avalanche formation assumes the existence of "super-weak" layers. Because a weak layer cannot effectively transmit the shear forces from the overburden snow, stress and strain-rate concentrations at the ends of the weak layer are generated. Fracture initiates at the higher end when the strain-rate concentration exceeds a critical value.

Key term(s)
  • super weak layer
  • superweak layer

French

Domaine(s)
  • Glaciologie
  • Climatologie
  • Géographie du froid
DEF

Strate de neige se développant dans une couche mince et qui est supposée être à l'origine de départs en plaque.

OBS

couche mince: couche de neige de faible épaisseur, en général de faible cohésion et constituée de neige roulée, de givre, de gobelets ou de faces planes.

Key term(s)
  • couche super fragile

Spanish

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