Physics
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991fizao..27..776g&link_type=abstract
Akademiia Nauk SSSR, Izvestiia, Fizika Atmosfery i Okeana (ISSN 0002-3515), vol. 27, July 1991, p. 776-782. In Russian.
Physics
Brightness Distribution, Correlation Coefficients, Spaceborne Photography, Twilight Glow, Horizon, Salyut Space Station, Vertical Distribution
Scientific paper
The fluctuations of the earth's twilight horizon brightness field are investigated by correlation methods. Based on photographs taken from the Salyut-6 orbital space station, correlation functions of brightness fluctuations are determined in the vertical and horizontal directions, and the corresponding correlation scales are estimated. The vertical correlation scale is about 1-3 km, and the horizontal correlation length is in the range from 60 to 300 km. It is inferred that the horizontal correlation scale of the brightness fluctuations in the twilight atmosphere is about 100 times larger than the corresponding vertical one.
Grechko Gheorghy Mikhailovich
Kireev Stanislav V.
Savinykh Viktor P.
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