TERMIUM Plus®

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

ADIABATIC LAPSE RATE [2 records]

Record 1 2010-03-08

English

Subject field(s)
  • Atmospheric Physics
DEF

Theoretical temperature lapse rate of a parcel of air which moves adiabatically in the vertical.

CONT

Adiabatic lapse rate [is] the constant rate at which the temperature declines with rising altitude in the atmosphere (without gain or loss of heat).

OBS

adiabatic lapse rate; lapse rate: terms officially approved by the International Civil Aviation Organization (ICAO).

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Gradient thermique vertical théorique d'une particule d'air qui se déplace adiabatiquement.

OBS

gradient adiabatique : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
DEF

Gradiente térmico vertical teórico de una partícula de aire que se desplaza adiabáticamente en la vertical.

OBS

gradiente adiabático: término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).

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Record 2 2010-03-08

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Atmospheric Physics
DEF

The rate at which some atmospheric property, usually temperature, decreases with height; the vertical gradient.

CONT

Adiabatic lapse rate [is] the constant rate at which the temperature declines with rising altitude in the atmosphere (without gain or loss of heat).

OBS

For temperature, the average is about 0.6°C/100 meters; however, it varies according to the moisture content of the air.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Physique de l'atmosphère

Spanish

Campo(s) temático(s)
  • Medición y análisis (Ciencias)
  • Física de la atmósfera
DEF

Velocidad de reducción de la temperatura con la altura en una masa de aire que asciende sin intercambio de calor con el aire que la rodea, teniendo en cuenta a cada nivel de altura la presión correspondiente.

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