GROUND-BASED. MEASUREMENTS OF EARTH-TO-SPACE BEAM TRANSMITTANCE, PATH RADIANCE, AND CONTRAST TRANSMITTANCE
SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA VISIBILITY LAB
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Vertical ground-to-space beam transmittance, path radiance, and contrast transmittance for green light was measured from a ground station on ten occasions during August and September 1962. On each occasion a Reconnaissance Laboratory photographic airplane photographed a pattern of white, grey, and black targets on the ground adjacent to the Visibility Laboratory equipment. The targets were radiometrically monitored by Cornell AUTICAL Laboratory in such a manner that target-to-aircraft beam transmittance, path radiance, and contrast transmittance could be obtained from the aerial photographs. The in tended purpose of this joint experiment is a comparison of the target-to-space data predicted by the ground-based instruments with the ground to-aircraft photographic data. The ground-based data are presented in this report, but comparison with the aerial data must await the completion of data reduction from the aerial photographs by Cornell Aeronautical Laboratory.
- Cartography and Aerial Photography