2: Albedo — Read — Invisible Network

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Albedo is a measurement, expressed as a fraction, of the amount of radiation scattered from a surface or an object. In this chapter we describe those albedos most commonly used and describe methods to calculate them in cases where analytical solutions are difficult, if not impossible, to obtain. In order to do this we introduce two more photometric quantities, namely exitance M and intensity I. A comprehensive summary of the photometric quantities is also presented.

2.2: Scattering and Absorption
2.3: Absorption, Scattering and Attenuation Coefficients
2.4: Surfaces - Single-scattering Albedo
2.5: Surfaces - Normal Albedo
2.6: Net Flux and Exitance
2.7: Surfaces - Hemispherical Albedo
2.8: Intensity
2.9: Spheres - Bond Albedo, Phase Integral and Geometrical Albedo
2.10: A, p and q for General Reflectance Rules
2.11: Gaussian Triple Integral Algorithm
2.12: Summary of Photometric Quantities

Thumbnail: Surface of Mercury (Public Domain; NASA).

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