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FRONT STATIONNAIRE [2 records]

Record 1 2017-11-22

English

Subject field(s)
  • Atmospheric Physics
  • Air Transport
DEF

A front which is stationary or nearly so (conventionally, moving with a speed less than five knots).

OBS

In synoptic chart analysis, a quasi-stationary front is one that has not moved appreciably from its position on the last previous synoptic chart (three or six hours before).

OBS

quasi-stationary front: Commonly called stationary front.

Key term(s)
  • quasistationary front

French

Domaine(s)
  • Physique de l'atmosphère
  • Transport aérien
DEF

Front stationnaire ou presque (par convention, front ayant une vitesse de moins de cinq nœuds).

CONT

Un front froid qui devient à peu près immobile est appelé front quasi stationnaire.

OBS

Front dont la position sur les cartes synoptiques successives est inchangée ou presque inchangée.

Spanish

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

Frente cuya posición en mapas sinópticos sucesivos es invariable o casi invariable (por convención, frente con una velocidad inferior a cinco nudos).

Save record 1

Record 2 2004-08-01

English

Subject field(s)
  • Atmospheric Physics
  • Air Transport
DEF

A front that is not moving.

CONT

When a warm or cold front stops moving, it becomes a stationary front. Once this boundary resumes its forward motion, it once again becomes a warm front or cold front. A stationary front is represented [on a weather map] by alternating blue and red lines with blue triangles pointing towards the warmer air and red semicircles pointing towards the colder air.

French

Domaine(s)
  • Physique de l'atmosphère
  • Transport aérien
DEF

Front dans lequel aucune des masses d'air en présence ne remplace l'autre.

OBS

Dans ce cas, les vents de surface ont tendance à souffler parallèlement à la zone frontale. La pente d'un front stationnaire est normalement faible, mais elle peut s'accentuer en fonction de la distribution des vents et des différences de densité.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Transporte aéreo
Save record 2

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