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HORIZONTAL AIR CIRCULATION [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2026-01-08

English

Subject field(s)
  • Meteorology
DEF

A katabatic wind, it is formed at night by the radiational cooling along mountainsides.

CONT

... at night the air in contact with the mountain is cooler than farther from the land mass and so the cooler air sinks along the slope producing the mountain breeze.

CONT

mountain breeze ... As the slopes become colder than the surrounding atmosphere, the lower levels of air cool and drain to the lowest point of the terrain. It may reach several hundred feet in depth, and extreme cases, attain speeds of 50 knots or greater. It blows in the opposite direction of a valley breeze.

CONT

During the night, the air along the mountain slopes begins to cool quickly because of longwave radiation loss... As the air cools, it becomes more dense and begins to flow downslope causing a mountain breeze. Convergence of the draining air occurs at the valley floor and forces the air to move vertically upward. The upward movement is usually limited by the presence of a temperature inversion which forces the air to begin moving horizontally. This horizontal movement completes the circulation cell system. In narrowing terrain, mountain winds can accelerate in speed because of the venturi effect. Such winds can attain speeds as high has 150 kilometers per hour.

French

Domaine(s)
  • Météorologie
DEF

Vent catabatique soufflant la nuit et aux premières heures après le lever du Soleil, le long des pentes, des montagnes vers les vallées ou les plaines.

CONT

Brise de pente [...] De nuit [...] l'air se refroidit au contact du sol et a tendance à descendre le long des pentes vers le fond de la vallée où s'instaure un courant général vers le bas de la vallée, c'est la brise d'amont.

Spanish

Campo(s) temático(s)
  • Meteorología
DEF

Corriente de aire que desciende a lo largo de una ladera o cauce por efecto de la gravedad, cuando su densidad es mayor que la de las capas de aire contiguas situadas al mismo nivel.

Save record 1

Record 2 2023-02-28

English

Subject field(s)
  • Meteorology
CONT

Basically[, ] marine fog represented by the [climate] model is warm air advection fog, and it was found that the change in the horizontal temperature advection near the surface mostly determines the changes in marine fog in a warmer climate. Therefore, the changes in marine fog can be almost explained by the large-scale circulation changes. On the other hand, in-cloud LWC(liquid water content) of the fog is consistently increased in a warmer climate for the same horizontal surface temperature advection.

French

Domaine(s)
  • Météorologie

Spanish

Save record 2

Record 3 2011-08-15

English

Subject field(s)
  • HVAC Distribution Systems

French

Domaine(s)
  • Distribution et évacuation (chauffage et conditionnement d'air)

Spanish

Save record 3

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