TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

large surface hoar [1 record]

Record 1 2007-09-28

English

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

On sheltered slopes near treeline, a layer of large surface hoar was formed over a weak and facetted upper snowpack. [Example approved by the Avalanche Bulletin Terminology Standardization Committee.]

OBS

surface hoar: Ice crystals formed when water vapor from the atmosphere sublimates onto snow crystals at the surface due to a flux resulting from a greater vapour pressure in the air than the equilibrium vapour pressure of ice.

OBS

large surface hoar: term officially approved by the Avalanche Bulletin Terminology Standardization Committee.

French

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

Sur les pentes à l'abri du vent, près de la limite forestière, on trouve une couche de gros cristaux de givre de surface recouvrant un manteau neigeux fragile formé de grains à faces planes. [Exemple entériné par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.]

OBS

givre de surface : Dépôt cristallin, de structure foliacée, formé par la condensation de la vapeur d'eau sur la surface du manteau neigeux.

OBS

gros cristal de givre de surface : terme uniformisé par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.

Spanish

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