Cloud comparisons between Apollo 6 photography and ATS 3 and ESSA 3 photography /
William E. Shenk.
Description
- Language(s)
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English
- Published
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Washington, D.C. : National Aeronautics and Space Administration : [1971]
- Summary
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Concurrent data obtained via ATS 3 and ESSA 3 and from Apollo 6 high resolution photography are compared. The spatial-resolution ratio between the Apollo 6 data and the data from the other satellitesis about 50: 1. Though the original ATS 3 cloud cover estimates are 13 to 14 percent higher than the Apollo 6 estimates (primarily in areas of low cumuliform clouds), corrections for the viewing perspective and spatial resolution bring the former estimates to within 5 percent of the latter. These results tend to confirm recent calculations made from satellite measurements of about 3 0 percent for the earth albedo. Cloud cover estimates made from the ESSA 3 satellite data are lower than the concurrent Apollo 6 data. Cloud type distributions are obtained via normal and stereographic viewing of Apollo 6 picture pairs for a strong midlatitude cold front and for tropical and subtropical regions. Most of the cloudiness is shown to be either high or low, with middle cloudiness confined to large, organized weather systems.
Also available online.
- Note
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Prepared at Goddard Space Flight Center.
"October 1971."--Cover.
Major NASA subject terms: Apollo 6 flight, ATS, cloud photography, ESSA 3 Satellite, high resolution, spaceborne photography, Albedo, cloud cover, statistical analysis.
- Physical Description
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iii, 47 p. :
ill. ;
26 cm.
Viewability
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University of Illinois at Urbana-Champaign
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