TERMIUM Plus®

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QUALITE CISAILLEMENT [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2009-01-30

English

Subject field(s)
  • Meteorological Forecasting, Data Measurement and Analysis
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

A semi-quantitative measure of the "nature" or ease of fracture when performing shear tests on the snowpack.

CONT

Note the shear quality of that test. [Example approved by the Avalanche Bulletin Terminology Standardization Committee.]

OBS

A new test developed in the USA but not in widespread use in Canada.

OBS

Shear quality indicators within the US range from Q1 to Q3 as described below and give additional useful information about snowpack stability beyond the test scores. ... Q1- Unusually clean, planar, smooth and fast shear surface; weak layer may collapse during fracture and slab may slide into pit on slopes angles > 35°. Q2-Average shear, mostly smooth but slab does not slide as readily as Q1; fracture occurs throughout most of slab but some small irregularities possible - not as many as Q3. Q3- Non-planar shear surface, uneven, irregular and rough; shear fracture typically not through the whole slab/weak layer interface. Slab may experience only slight movement.

OBS

shear quality: term officially approved by the Avalanche Bulletin Terminology Standardization Committee.

French

Domaine(s)
  • Prévisions météorologiques et mesure et analyse des données
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

Notez la qualité de cisaillement obtenue lors de ce test. [Exemple entériné par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.]

OBS

Nouveau test créé aux États-Unis et très peu usité au Canada.

OBS

qualité de cisaillement : terme uniformisé par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.

Spanish

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