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Proceedings Paper

Near Millimeter Wave (NMMW) Snow Extinction: Atmospheric Sciences Laboratory-MMTRN Model And Data Review
Author(s): Douglas R. Brown
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Paper Abstract

The Atmospheric Sciences Laboratory developed model MMTRN for millimeter wave extinction and backscatter is presented, with emphasis on the snow extinction model. The literature on millimeter wave snow extinction and backscatter is reviewed including significant results by Oomori et a15, Nishitsuji4, Imai et al10, Babkin et al9, and Malinkin et al7. From selected data and empirical model is described which employs a K=arb relationship, where R, in mm/hr, is the rain equivalent snowrate. Three snow types are included: dry, moist, and wet. Comparison with similar relationship for rain is made showing analogous behavior. The snow backscatter model is presented, with its current deficiencies. The model predictions are compared with independent snow extinction data, and show reasonable agreement. Model deficiencies are identified and include: (1) lack of snow backscatter measurements, (2) insufficient snow extinction data above 50 GHz.

Paper Details

Date Published: 30 December 1981
PDF: 6 pages
Proc. SPIE 0305, Atmospheric Effects on Electro-Optical, Infrared, and Millimeter Wave Systems Performance, (30 December 1981); doi: 10.1117/12.932728
Show Author Affiliations
Douglas R. Brown, Atmospheric Sciences Laboratory (United States)

Published in SPIE Proceedings Vol. 0305:
Atmospheric Effects on Electro-Optical, Infrared, and Millimeter Wave Systems Performance
Richard Gomez, Editor(s)

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