TERMIUM Plus®

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

PREMIERE TROPOPAUSE [1 record]

Record 1 2004-09-30

English

Subject field(s)
  • Atmospheric Physics
  • Geophysics
DEF

By convention, the ... lowest level at which the lapse rate decreases to 2°C km-1 or less, provided also the average lapse rate between this level and all higher levels within 2 km does not exceed 2°C km-1.

OBS

Occasionally, a second tropopause may be found if the lapse rate above the first tropopause exceeds 3°C km-1.

OBS

tropopause: Upper limit of the troposphere.

French

Domaine(s)
  • Physique de l'atmosphère
  • Géophysique
DEF

Par convention [...] le niveau le plus bas auquel le gradient vertical de température devient égal ou inférieur à 2 °C/km, pourvu que le gradient moyen entre ce niveau et tous les niveaux supérieurs distants de moins de deux kilomètres n'excède pas 2 °C/km.

OBS

tropopause : limite supérieure de la troposphère.

OBS

Parfois, on trouve une seconde tropopause si le gradient vertical au-dessus de la première dépasse 3 °C km-1.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Geofísica
CONT

Puede hallarse ocasionalmente una segunda tropopausa si el gradiente vertical por encima de la primera es de más de 3 °C km-1.

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