Accession Number:

ADA126062

Title:

Propagation of Visible and Infrared Radiation in Fog, Rain, and Snow

Descriptive Note:

Final rept. 9 Apr 1981-1 Apr 1982

Corporate Author:

MICHIGAN TECHNOLOGICAL UNIV HOUGHTON KEWEENAW RESEARCH CENTER

Report Date:

1982-07-01

Pagination or Media Count:

103.0

Abstract:

Measurements of the attenuation of radiation at 0.6328, 1.06, and 8 to 12 micrometers by fog, rain, and snow are reported. Theoretical models are presented which account for the scattering properties of fog droplets, raindrops, and snow crystals at each wavelength. Attenuation by fog in the 8 to 12 micrometer band is shown to be a function of the liquid water content of the fog while attenuation at 0.6328 micrometers is a function of both liquid water content and the fog droplet size distribution. It is shown that not only must the scattering properties of rain drops and snow crystals be properly modeled, but the susceptibility of the experimental instruments to scattered radiation must also be known.

Subject Categories:

  • Atmospheric Physics
  • Meteorology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE