MULTI-WAVELENGTH TRANSMITTANCE THROUGH FALLING SNOW (paper presented at the proceedings of SPIE - The International Society for Optical Engineering on Propagation Engineering, Orlando, Florida, US, 28-30 March 1989)

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Authors
  1. Hutt, D.L.
  2. Bissonnette, L.R.
  3. St Germain, D.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Measurements of transmittance through falling snow were made in the visible, 3-5 mu m and 8-12 mu m 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.
Date of publication
15 Mar 1989
Number of Pages
13
Reprinted from
Proceedings of SPIE - The International Society for Optical Engineering, vol 1115, 1989, p 254-265
DSTKIM No
92-00881
CANDIS No
103775
Format(s):
Document Image stored on Optical Disk;Originator's fiche received by DSIS

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