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Proceedings Paper

Multi-Wavelength Transmittance Through Falling Snow
Author(s): D. L. Hutt; L. R. Bissonnette; D. St. Germain
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Paper Abstract

Measurements of transmittance through falling snow were made in the visible, 3-5 μm and 8-12 μm bands along a 540 m path. In the visible, measurements were made for both a narrow (0.05 mrad) and wide (3mrad) transmitted beam detected by a common receiver. The apparent path averaged extinction, derived from the transmittance measurements using the Beer- Bouguer law, was found to be dependent upon wavelength and transmissometer geometry. The results may be explained by taking into account scattered contributions to the measured transmittance. The results are compared to calculations made with a single-scattering model and a multiscattering model.

Paper Details

Date Published: 11 October 1989
PDF: 12 pages
Proc. SPIE 1115, Propagation Engineering, (11 October 1989); doi: 10.1117/12.960878
Show Author Affiliations
D. L. Hutt, Defence Research Establishment Valcartier (Canada)
L. R. Bissonnette, Defence Research Establishment Valcartier (Canada)
D. St. Germain, Defence Research Establishment Valcartier (Canada)

Published in SPIE Proceedings Vol. 1115:
Propagation Engineering
Norman S. Kopeika; Walter B. Miller, Editor(s)

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