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Proceedings Paper

Instruments Used For Snow Characterization In Support Of Snow-One-A And Snow-One-B
Author(s): Vernon G. Plank; Anthony J. Matthews; Robert O. Berthel
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Paper Abstract

Three, newly-developed snow characterization instruments are described together with examples of their data products. A snow rate meter was developed that utilizes a sensitive electronic balance to determine snow rate to an accuracy of about ± .05 mm/hr (water equivalent rate) at time resolutions varying from some 15 to 120 s, depending on the wind turbulence situation. A fall velocity indicator was constructed utilizing vidicon TV recording and strobe illumination that permits the fall velocities and fall characteristics of snowflakes to be ascertained. A snow structure recorder was also designed that uses a vidicon camera to look at the detailed crystalline structure of snowflakes (over a 1 cm x 1 cm field of view) that fall on a sampling area which is an intermittently moving belt.

Paper Details

Date Published: 22 September 1983
PDF: 6 pages
Proc. SPIE 0414, Optical Engineering for Cold Environments, (22 September 1983); doi: 10.1117/12.935864
Show Author Affiliations
Vernon G. Plank, Air Force Geophysics Laboratory (United States)
Anthony J. Matthews, Air Force Geophysics Laboratory (United States)
Robert O. Berthel, Air Force Geophysics Laboratory (United States)

Published in SPIE Proceedings Vol. 0414:
Optical Engineering for Cold Environments
George W. Aitken, Editor(s)

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