Physics – Optics
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999jqsrt..63..393k&link_type=abstract
Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 63, issue 2-6, pp. 393-407
Physics
Optics
2
Radiative Transfer: Scattering
Scientific paper
The aim of this paper is to study the dependence of reflection, absorption, and transmission of light by optically thick, weakly absorbing disperse media on the shape of constituent particles. Single scattering by nonspherical particles is calculated in the framework of the Rayleigh and geometrical optics approximations. The ratio of the average volume to the average surface of particles and their volumetric concentration are kept constant. Thus, the extinction coefficient and the optical thickness of different media under consideration are the same. Calculations are performed for ice particles at wavelengths of 0.645, 1.24, 1.64, and 2.13 μm. The respective refractive indices range from 1.3082-i1.325×10-8 (weak absorption) to 1.2674-i5.65×10-4 (moderate absorption). The radiative characteristics are calculated in the framework of approximate analytical formulae valid for optically thick, weakly absorbing media.
Kokhanovsky A. A.
Macke Andreas
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