TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
BILLOW CLOUD [1 record]
Record 1 - internal organization data 1999-03-16
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
- Atmospheric, Climatic and Meteorological Phenomena
Record 1, Main entry term, English
- billow cloud
1, record 1, English, billow%20cloud
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A cloud or series of clouds that forms when sufficient moisture exists in the billow for condensation to occur. 2, record 1, English, - billow%20cloud
Record number: 1, Textual support number: 1 CONT
Billow clouds are created when different layers of wind flow at different velocities resulting in unstable turbulence between the layers. The common name for this instability is Kelvin-Helmholtz instability. Billow clouds are created in the upward branch of each of the "eddies" if the air within this branch has a high enough relative humidity that, upon lifting, the air parcel reaches saturation. Individual billow clouds generally last a few minutes. Billow clouds provide a visible signal to pilots of potentially dangerous turbulence. 3, record 1, English, - billow%20cloud
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
- Phénomènes météorologiques, climatiques et atmosphériques
Record 1, Main entry term, French
- nuage en rouleaux
1, record 1, French, nuage%20en%20rouleaux
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- nuage en lames 2, record 1, French, nuage%20en%20lames
correct, masculine noun
- nuage en bancs 3, record 1, French, nuage%20en%20bancs
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Nuage ou série de nuages se formant quand l'air est suffisamment humide pour que la condensation se produise dans les rouleaux. 4, record 1, French, - nuage%20en%20rouleaux
Record number: 1, Textual support number: 1 OBS
Pour plusieurs auteurs, il y aurait synonymie entre les nuages en bancs, en lames ou en rouleaux et la variété «undulatus». Il reste préférable de les distinguer (ce qui n'est pas toujours facile). D'autres nuages (nuages andains et nuages d'onde) appartiennent aussi à la variété «undulatus». 5, record 1, French, - nuage%20en%20rouleaux
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Física de la atmósfera
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 1, Main entry term, Spanish
- nube en rodillo
1, record 1, Spanish, nube%20en%20rodillo
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Nube o serie de nubes que se forman cuando el aire está suficientemente húmedo para que se produzca condensación en los rodillos. 2, record 1, Spanish, - nube%20en%20rodillo
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