Publication Abstracts
Mishchenko and Macke 1998
, and A. Macke, 1998: Incorporation of physical optics effects and computation of the Legendre expansion for ray-tracing phase functions involving δ-function transmission. J. Geophys. Res., 103, 1799-1805, doi:10.1029/97JD03121.
The standard geometric optics (GO) technique predicts that the phase function for large nonspherical particles with parallel plane facets (e.g., hexagonal ice crystals) should have an infinitely narrow δ-function transmission peak caused by rays transmitted (refracted) in exactly the forward scattering direction. However, exact T-matrix computations and physical considerations based on the Kichhoff approximation suggest that this peak is an artifact of GO completely ignoring physical optics effects and must be convolved with the Fraunhofer pattern, thereby producing a phase function component with an angular profile similar to the standard diffraction component. This convolution can be performed with a simple procedure which supplements the standard ray-tracing code and makes the computation of the phase function and its Legendre expansion both more physically realistic and more accurate.
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BibTeX Citation
@article{mi02100q, author={Mishchenko, M. I. and Macke, A.}, title={Incorporation of physical optics effects and computation of the Legendre expansion for ray-tracing phase functions involving δ-function transmission}, year={1998}, journal={Journal of Geophysical Research}, volume={103}, pages={1799--1805}, doi={10.1029/97JD03121}, }
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RIS Citation
TY - JOUR ID - mi02100q AU - Mishchenko, M. I. AU - Macke, A. PY - 1998 TI - Incorporation of physical optics effects and computation of the Legendre expansion for ray-tracing phase functions involving δ-function transmission JA - J. Geophys. Res. JO - Journal of Geophysical Research VL - 103 SP - 1799 EP - 1805 DO - 10.1029/97JD03121 ER -
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