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Atmospheric optics ray tracing codes - this article list codes for light scattering using ray-tracing technique to study atmospheric optics phenomena such as rainbows and halos. Such particles can be large raindrops or hexagonal ice crystals. Such codes are one of many approaches to calculations of light scattering by particles. ==Geometric optics (ray tracing)== (詳細はrainbow of halo on hexagonal ice crystals for large particles. Review of several mathematical techniques is provided in series of publications. The 46° halo was first explained as being caused by refractions through ice crystals in 1679 by the French physicist Edmé Mariotte (1620–1684) in terms of light refraction 〔E. Mariotte, ''Quatrieme Essay. De la Nature des Couleur'' (Paris, France: Estienne Michallet, 1681). Sun dogs as well as the 22° and 46° halos are explained in terms of refractions from ice crystals on (pages 466 - 524 ).〕 Jacobowitz in 1971 was the first to apply the ray-tracing technique to hexagonal ice crystal. Wendling et al. (1979) extended Jacobowitz's work from hexagonal ice particle with infinite length to finite length and combined Monte Carlo technique to the ray-tracing simulations. 〔Greenler, R. Rainbows, halos, and glories. Cambridge University Press, Cambridge, 1980.〕 〔Pattloch, F., and Trankle, E. ¨Monte carlo simulation and analysis of halo phenomena. J. Opt. Soc. Am 1, 5 (1984), 520–526.〕 〔A Study on Atmospheric Halo Visualization, Sung Min Hong and Gladimir Baranoski, Technical Report CS-2003-26 September, 2003, School of Computer Science, University of Waterloo, 200 University venue West Waterloo, Ontario, Canada N2L 3G1〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Atmospheric optics ray-tracing codes」の詳細全文を読む スポンサード リンク
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