TERMIUM Plus®

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

MESOSCALE SHEAR [1 record]

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Record 1 1986-06-02

English

Subject field(s)
  • Air Transport
CONT

The mesoscale shear are the most significant and dangerous with respect to aircraft safety, although they were not actually identified as such until 71. Mesoscale shears can extend from 1 to 5 km in diameter, typically lasting from 5 10 20 minutes. Within the mesoscale, there are two classes of wind shears; microburst and macrobursts.

French

Domaine(s)
  • Transport aérien
CONT

Les cisaillements à l'échelle méso sont les plus importants et les plus dangereux pour l'aviation, même s'ils n'ont pas été reconnus comme tels avant 1971. Affectant une zone de 1 à 5 km de diamètre, ils durent généralement de cinq à vingt minutes. Il y a deux catégories de mésocisaillement : les microrafales et les macrorafales.

Spanish

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