Optical Properties Of Model Aerosols Growing Into Fogs

Rufus E. Bruce Jr.; Juan O. Lawson

doi:10.1117/12.932707

30 December 1981 Optical Properties Of Model Aerosols Growing Into Fogs

Rufus E. Bruce Jr., Juan O. Lawson

Proceedings Volume 0305, Atmospheric Effects on Electro-Optical, Infrared, and Millimeter Wave Systems Performance; (1981) https://doi.org/10.1117/12.932707
Event: 25th Annual Technical Symposium, 1981, San Diego, United States

Abstract

Model calculations of the time development of the ontical properties of maritime, urban and rural aerosols growing into fogs are given The calculations are carried out for several different ultimate temperatures and rates of change of temperature which lead to different degrees of supersaturation and conseouent optical properties. Different initial temperatures and relative humidities are examined. In the cases of lowest ultimate temperature the fog development and its optical properties are carried to the point at which a single mode distribution oceanic origin maritime aerosol 'becomes bimodal with a well separated heavy fog distribution. The time development of the aerosol near and through the supersaturation phase is obtained using the non-eouilibriun growth equations. The growth of sample point of each component distribution mode of the aerosol are tracked with time. Extinction coefficients are given for A = 0.55μm, 3.7 μm and 10.7μm.

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Rufus E. Bruce Jr. and Juan O. Lawson "Optical Properties Of Model Aerosols Growing Into Fogs", Proc. SPIE 0305, Atmospheric Effects on Electro-Optical, Infrared, and Millimeter Wave Systems Performance, (30 December 1981); https://doi.org/10.1117/12.932707

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KEYWORDS

Aerosols

Atmospheric modeling

Fiber optic gyroscopes

Atmospheric particles

Humidity

Optical properties

Mass attenuation coefficient

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