A Monte Carlo model of polarized thermal emission from particulate planetary surfaces

Details A Monte Carlo model of polarized thermal emission from particulate planetary surfaces A Monte Carlo model of polarized thermal emission from particulate planetary surfaces

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...99...51h&link_type=abstract

Icarus (ISSN 0019-1035), vol. 99, no. 1, p. 51-62.

Mathematics

14

Monte Carlo Method, Planetary Radiation, Planetary Surfaces, Polarized Electromagnetic Radiation, Ray Tracing, Thermal Emission, Electromagnetic Scattering, Emissivity, Mathematical Models, Surface Roughness Effects

Scientific paper

Direct emission from individual grains and multiple scattering between regolith particles are encompassed by the present model of particulate planetary surface thermal emission, whose randomly positioned spherical grains are large relative to the emission's wavelength scale. A Monte Carlo ray-tracing method is used to calculate the spectral and directional emissivity of the surface and the polarization of the emitted radiation, for 7-16 micron wavelengths. The effects of roughness at the scale of individual grains and scattering are separated to elucidate how each affects the emitted radiation. Implications of these results for planetary remote sensing are discussed.

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