SURVEY ON EARTH ALBEDO
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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The paper is a study of the conditions that can be expected for the intensity of light reflected and scattered from the earth. The albedo of the earth is defined and the albedo of various surfaces, and regions of the earth are discussed. An attempt is made to survey typical results of measurements of Tiros data. The albedo of the earth covered by a Rayleigh atmosphere is presented in graphical form and the intensity distribution over the earth is plotted for various orientations of observer viewed spot and sun. A calculation of expected minimum response is made for a specific photodiode for a certain geometry and a method is presented to enable interested persons to easily perform similar calculations for different geometries.