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Orbital measurements of the earth's radiation budget are being made from several spacecraft launched in the latter part of 1984. Three sets of instruments have been designed to measure the incident solar flux, the earth's long‐wave emitted radiation, and the earth's reflected radiation more accurately than have been measured before. These instruments consist of a three‐channel narrow field of view scanning radiometer and a four‐channel wide field of view staring nonscanner radiometer and a solar channel. The instruments are collecting data on spectral, spatial, and temporal scales specified by scientists and researchers in the weather and climate discipline. The scanning radiometer, the subject of this paper, is designed to yield small‐scale definition for measurements taken by the nonscanner and thereby test convolution/deconvolution techniques used on wide field of view data. The scanning radiometer is also expected to yield bidirectional reflectance data as an aid in radiation transfer modeling calculations.
L. P. Kopia (Thu,) studied this question.