TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

REFLECTIVITY [4 records]

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
Save record 1

Record 2 1998-09-30

English

Subject field(s)
  • Optics
  • Paints and Varnishes (Industries)
DEF

The total reflection factor of a layer of material of such a thickness that there is no change of reflection factor with increase in thickness.

French

Domaine(s)
  • Optique
  • Peintures et vernis (Industries)
DEF

Facteur de réflexion d'un feuil sec d'épaisseur telle que ce facteur ne change pas lorsque l'épaisseur augmente. [Définition normalisée par l'AFNOR et reproduite avec son autorisation.]

OBS

réflectivité : terme normalisé par l'AFNOR.

Spanish

Campo(s) temático(s)
  • Óptica
  • Pinturas y barnices (Industrias)
Save record 2

Record 3 1986-03-27

English

Subject field(s)
  • Optics
DEF

The property of reflecting radiation possessed by all materials to varying extents.

French

Domaine(s)
  • Optique
CONT

Le matériau réfléchissant le mieux indiqué est l'aluminium pur, doué d'un pouvoir réflecteur presque aussi élevé que celui de l'argent.

Spanish

Save record 3

Record 4 1981-06-19

English

Subject field(s)
  • Refrigeration Engineering

French

Domaine(s)
  • Techniques du froid

Spanish

Save record 4

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