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Albedo definition, Astronomy. the ratio of the light reflected by a planet or satellite to that received by it. See more.
Albedo is a non-dimensional, unitless quantity that indicates how well a surface reflects solar energy. Albedo (Ã®Â±) varies between 0 and 1. Albedo commonly refers to the whiteness of a surface, with 0 meaning black and 1 meaning white. A value of 0 means the surface is a perfect absorber that absorbs all incoming energy. Absorbed solar energy can be used to heat the surface or, when sea ice is present, melt the surface.