Accession Number:

AD0741878

Title:

Polarization of Infrared Waves Caused by Propagation through the Atmosphere

Descriptive Note:

Technical rept. Aug 1971-Mar 1972

Corporate Author:

AIR FORCE WEAPONS LAB KIRTLAND AFB NM

Personal Author(s):

Report Date:

1972-04-01

Pagination or Media Count:

233.0

Abstract:

The study presents an investigation of the polarization of infra-red waves due to propagation through the atmosphere. Cumulus cloud and Haze M particle size distributions are considered for various optical depths at wavelengths of 4.0 and 10.0 micrometers. Results at these wavelengths are compared to results at a wavelength of 0.5 micrometers for the same physical atmosphere. Initially the radiative transfer integral equations are derived which include the Stokes polarization vector. From these integral equations a Monte Carlo simulation technique is used to photon histories through the atmosphere. The effects of multiple scattering on the polarization state of the scattered intensity is included. A diffuse scattering ground which causes complete depolarization of the incident intensity is included in the simulation model.

Subject Categories:

  • Atmospheric Physics
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE