Method of artificial luminous clouds for investigating the regularities of the space-time gas-dust cloud evolution

Details Method of artificial luminous clouds for investigating the regularities of the space-time gas-dust cloud evolution Method of artificial luminous clouds for investigating the regularities of the space-time gas-dust cloud evolution

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12..113a&link_type=abstract

(Active experiments in space; Proceedings of the Topical Meeting of the Interdisciplinary Scientific Commission D /Meeting D3/ o

Computer Science

Artificial Clouds, Cloud Photography, Field Of View, Image Intensifiers, Upper Atmosphere, Luminosity, Photogrammetry

Scientific paper

Large-area cameras with a field of vision of 30-45 deg were used to record the spatial structure of gas-dust cloud formations. The exposure time was prescribed by a controlling device in cycles of exposures from 0.5 to 7 sec, with intervals between exposures of 0.5 to 3 sec. Motion-picture cameras without image intensifiers allowed cloud recording of 0.1 sec time resolution. To determine the spatial coordinates of man-made clouds, two or more points tens of kilometers apart were photographed simultaneously. The spatial coordinates of clouds were determined from the positions of clouds with respect to stars whose coordinates were known. The standard deviation of the positions was 0.4-0.6 km. The behavior of man-made dust clouds in the upper atmosphere was found to differ from that of gas clouds. Specifically, particles of different sizes decelerate to different degrees. The radiation field of artificial dust clouds has a more inhomogeneous structure as compared to gas clouds.

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