TERMIUM Plus®

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REFLECTIVE POWER [1 record]

Record 1 2007-01-31

English

Subject field(s)
  • Space Physics
DEF

In genegral, a measure of the efficiency of a radar target in intercepting and returning radio energy [;] it depends upon the size, shape, aspect, and dielectric properties of the target.

CONT

... some surfaces or objects will reflect much of the in-coming radiation while other surfaces will absorb most of the in-coming radiation. It is these differences in reflectivity that allow us to distinguish different features or conditions in remote sensing imagery. The reflectivity of a surface can be measured for a specific wavelength or for the entire electromagnetic spectrum.

OBS

radar reflectivity: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Physique spatiale
DEF

Mesure de l'efficacité d'une cible à intercepter et à renvoyer un signal radar; cette réflectivité dépend de la taille, de la forme, de l'état de la surface et des propriétés diélectriques de la cible.

OBS

réflectivité radar : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

PHR

Coefficient complexe, signature angulaire de réflectivité.

Spanish

Campo(s) temático(s)
  • Física espacial
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