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water vapor [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2004-11-08

English

Subject field(s)
  • Atmospheric Physics
DEF

Water substance in vapor form; one of the most important of all constituents of the atmosphere.

CONT

Water vapour is the source for all forms of precipitation, and, in addition is an important absorber and emitter of infrared radiation.

OBS

Water vapor is important not only as the raw material for cloud and rain, but also as a vehicle for the transport of energy (latent heat) and as a regulator of planetary temperatures via the greenhouse effect.

OBS

The amount of water vapor (moisture) may be measured in a number of different ways: absolute, specific, or relative humidity; mixing ratio; dew point and vapor pressure.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Eau contenue dans l'atmosphère à l'état gazeux.

CONT

La vapeur d'eau de l'atmosphère provient de l'évaporation à la surface des océans, des mers, des lacs, des cours d'eau, des sols humides, et de l'évapotranspiration des couverts végétaux [...] En se condensant, elle forme des nuages et retombe sous forme de pluie ou de neige. L'eau émet de la vapeur d'eau à toute température, même quand elle est gelée sous forme de glace ou de neige.

CONT

Le premier élément du système climatique susceptible de réagir à une variation climatique est la vapeur d'eau. Celle-ci constitue d'assez loin le premier des gaz à effet de serre, donc celui qui induit l'impact radiatif le plus important.

Spanish

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

Agua en su fase gaseosa.

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Record 2 2003-06-04

English

Subject field(s)
  • Physics
DEF

Water that is in the gaseous state which is produced by evaporation ...

CONT

Steam is water vapor produced by evaporation. The white appearance of escaping steam is due to condensation at a lowered temperature. It is the water vapor that shows white.

CONT

Heat water in a kettle until boiling. Hang a tray or plate in the steam or water vapor that comes from the kettle.

French

Domaine(s)
  • Physique
DEF

Eau transformée à l'état de gaz par élévation de sa température [...]

CONT

La vapeur d'eau [...] est aussi un fluide thermodynamique courant (machines et turbines à vapeur).

Spanish

Campo(s) temático(s)
  • Física
DEF

Agua en forma de vapor, especialmente cuando se encuentra por debajo de su punto de ebullición.

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