Instruments Used For Snow Characterization In Support Of Snow-One-A And Snow-One-B

Vernon G. Plank; Anthony J. Matthews; Robert O. Berthel

doi:10.1117/12.935864

22 September 1983 Instruments Used For Snow Characterization In Support Of Snow-One-A And Snow-One-B

Vernon G. Plank, Anthony J. Matthews, Robert O. Berthel

Proceedings Volume 0414, Optical Engineering for Cold Environments; (1983) https://doi.org/10.1117/12.935864
Event: 1983 Technical Symposium East, 1983, Arlington, United States

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.

Citation Download Citation

Vernon G. Plank, Anthony J. Matthews, and Robert O. Berthel "Instruments Used For Snow Characterization In Support Of Snow-One-A And Snow-One-B", Proc. SPIE 0414, Optical Engineering for Cold Environments, (22 September 1983); https://doi.org/10.1117/12.935864

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