TERMIUM Plus®

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ATMOSPHERIC REFLECTANCE [1 record]

Record 1 2007-01-31

English

Subject field(s)
  • Optics
  • Atmospheric Physics
DEF

The ratio of reflected radiation from the atmosphere to incident radiation.

CONT

For relatively clear Landsat scenes, a reduction in between-scene variability can be achieved through a normalization for solar irradiance by converting spectral radiance ... to planetary reflectance or albedo. This combined surface and atmospheric reflectance of the Earth is computed with [a] formula.

French

Domaine(s)
  • Optique
  • Physique de l'atmosphère
DEF

Rapport entre le rayonnement réfléchi par l'atmosphère et le rayonnement incident.

CONT

Une partie des photons diffusés par les gaz et les aérosols peut parvenir au capteur sans avoir atteint la surface terrestre. Les photons constituent alors un signal parasite qui vient s'ajouter au signal utile (luminance ou réflectance propre de l'atmosphère). Dans le cas d'une surface peu réfléchissante comme la mer, cette réflectance atmosphérique peut constituer l'essentiel ou la totalité du signal.

Spanish

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