TERMIUM Plus®

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

TROPICAL WAVE [2 records]

Record 1 2012-12-12

English

Subject field(s)
  • Atmospheric Physics
DEF

A kink or bend in the normally straight flow of surface air in the tropics which forms a low pressure trough, or pressure boundary, with showers and thunderstorms.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Courbe dans l'écoulement normalement droit de l'air de surface sous les tropiques, qui forme un creux de basse pression accompagné d'averses et d'orages.

CONT

onde tropicale : Dite parfois aussi onde d'est, l'onde est définie comme étant un axe de basses pressions relatives, ou thalweg, au sein de l'alizé des zones intertropicales [...]

Spanish

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Record 2 2012-12-11

English

Subject field(s)
  • Atmospheric Physics
DEF

A synoptic-scale disturbance which moves from east to west, superimposed on the basic easterly flow of the tropics (trade winds zone).

CONT

The last mechanism is the easterly wave, a tropical disturbance that travels from east to west in the region of the tropical easterlies. Converging winds on the east side of the easterly wave trigger the development of thunderstorms. In fact, most Atlantic hurricanes can be traced to easterly waves that form over Western Africa.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Perturbation à l'échelle synoptique qui se déplace d'est en ouest, superposée au courant de base des vents d'est tropicaux (zone des alizés).

CONT

Les vagues de l'est, que l'on appelle aussi «ondes tropicales», sont des creux barométriques orientés du nord au sud, qui se déplacent d'est en ouest sous les tropiques et sont accompagnés de nuages et d'orages.

Spanish

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

Perturbación en escala sinóptica que se desplaza del este al oeste, superpuesta a la corriente básica de los vientos del este tropicales (zona de los alisios).

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