Abstract
Within the geometric optics approximation, the phase functions of randomly oriented ice crystals are calculated as a series relative to multiplicity of internal collisions of light inside the particles. In the case of convex crystals, it is shown that the coefficients of the series provide the most information about the crystal shapes, while the angular functions of this series are weakly dependent on the shapes. The prevailing role of the term corresponding to one internal collision is emphasized. Three numbers describing a distribution of the single-collision scattered light among the aureole and halos of 22° and 46° prove to be the basic parameters by which to characterize scattering by hexagonal ice crystals.
© 2006 Optical Society of America
Full Article | PDF ArticleMore Like This
Andreas Macke
Appl. Opt. 32(15) 2780-2788 (1993)
Peter Wendling, Renate Wendling, and Helmut K. Weickmann
Appl. Opt. 18(15) 2663-2671 (1979)
Antonino Pluchino
Opt. Lett. 11(5) 276-278 (1986)