Albedo
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High Quality Content by WIKIPEDIA articles! Albedo Al-bee-dough is a measure of the fraction of reflected incident sunlight. When an object reflects most of the light that hits it, it looks bright and it has a high albedo. The word is derived from Latin albedo "whiteness", in turn from albus "white", and was introduced into optics by Johann Heinrich Lambert in his 1760 work Photometria. The range of possible values is from 0 dark to 1 bright. The albedo is an important concept in climatology and astronomy, as well as in computer graphics and computer vision. In climatology it is sometimes expr...
High Quality Content by WIKIPEDIA articles! Albedo Al-bee-dough is a measure of the fraction of reflected incident sunlight. When an object reflects most of the light that hits it, it looks bright and it has a high albedo. The word is derived from Latin albedo "whiteness", in turn from albus "white", and was introduced into optics by Johann Heinrich Lambert in his 1760 work Photometria. The range of possible values is from 0 dark to 1 bright. The albedo is an important concept in climatology and astronomy, as well as in computer graphics and computer vision. In climatology it is sometimes expressed as a percentage. Its value depends on the frequency of radiation considered: unqualified, it usually refers to some appropriate average across the spectrum of visible light. In general, the albedo depends on the direction and directional distribution of incoming radiation. Exceptions are Lambertian surfaces, which scatter radiation in all directions in a cosine function, so their albedo does not depend on the incoming distribution.
