Geometry of Earthshine Reflection from a Spherical Target
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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An expression is found for the flux due to earthshine incident at any point on a spherical target as a function of target height above ground. Curves showing the variation of reflected signature or view factor with observer position and target height are presented for the case of a diffuse target surface. An expression is given for the view factor in the specular case, which is shown to be independent of observer position.
- Infrared Detection and Detectors