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AEROLOGICAL OBSERVATION [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2004-10-29

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
  • Remote Sensing
DEF

An observation made in the free atmosphere either directly or indirectly.

OBS

upper-air observation. This is a general term, but is usually applied to those observations that are used in the analysis of upper-air charts (as opposed to measurements of upper-atmospheric quantities primarily for research). Among the elements evaluated are pressure, temperature, relative humidity (e.g., by radiosonde aircraft observations), and wind speed and direction (e.g., by rawinsonde, aircraft, or wind profiling radars). Also, some mountain stations are high enough and exposed enough so that their observations may be included in the upper-air network at their elevation.

OBS

At each [weather] station, measurements are taken of such things as air pressure and temperature, wind speed, cloud cover, and precipitation. Elsewhere, upper-level observations are made by weather balloons, and satellites, which send a continuous flow of photographs back to earth.

OBS

upper-air observations : plural form standardized by ISO.

Key term(s)
  • upper air sounding
  • upper level observation

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
  • Télédétection
DEF

Observation effectuée dans l'atmosphère libre, soit directement, soit indirectement.

OBS

observation en altitude : Observation météorologique effectuée dans l'atmosphère libre, soit directement, en aéronef par exemple, soit indirectement, au moyen d'un sondage exécuté à partir de la surface terrestre.

OBS

observations en altitude : terme normalisé au pluriel par l'ISO.

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
  • Teledetección
DEF

Observación efectuada, directa o indirectamente, en la atmósfera libre.

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