TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A layer in the atmosphere where temperature increases with altitude instead of falling with height, and where the following characteristics can be observed: the layer is marked by its static stability and hence by the fact that very little turbulent exchanges can occur within it; strong wind shears often occur across it; abrupt changes in concentrations of atmospheric particulates and atmospheric water vapour may be encountered on ascending through it; the upward diffusion of gases is inhibited by it.  1, record 1, English, - temperature%20inversion

Record number: 1, Textual support number: 1 OBS

temperature inversion: this term is also used to denote the phenomenon by which that inversion layer is produced.  2, record 1, English, - temperature%20inversion

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Dans les conditions normales, la température de l'air décroît avec l'altitude; mais, si une masse d'air froid se forme au voisinage du sol (pendant les matinées d'hiver ensoleillées, et surtout dans les vallées), il apparaît une zone d'inversion de température à 200 m du sol. Les fumées et gaz polluants ne peuvent plus s'élever dans l'air et la pollution atmosphérique de la ville peut atteindre le seuil d'alerte.  1, record 1, French, - zone%20d%27inversion%20de%20temp%C3%A9rature

Record 1,  Textual support,  Spanish