Abstract

A technique is described for computing the aureole radiance field about a point source in a medium that absorbs and scatters according to an arbitrary phase function. When applied to an isotropic source in a homogenous medium, the method uses a double-integral transform which is evaluated recursively to obtain the aureole radiances contributed by successive scattering orders, as in the Neumann solution of the radiative transfer equation. The normalized total radiance field distribution and the variation of flux with field of view and range are given for three wavelengths in the uv and one in the visible, for a sea-level model atmosphere assumed to scatter according to a composite of the Rayleigh and modified Henyey-Greenstein phase functions. These results have application to the detection and measurement of uncollimated uv and visible sources at short ranges in the lower atmosphere.

© 1978 Optical Society of America

Time-dependent aureole about a source in a multiple-scattering medium

E. Trakhovsky and U. P. Oppenheim
Appl. Opt. 22(11) 1633-1638 (1983)

Comparison of iterative and Monte Carlo methods for calculation of the aureole about a point source in the Earth’s atmosphere

Claire Lavigne, Antoine Roblin, Valérie Outters, Stéphane Langlois, Thierry Girasole, and Claude Rozé
Appl. Opt. 38(30) 6237-6246 (1999)

Experimental and theoretical studies of the aureole about a point source that is due to atmospheric scattering in the middle ultraviolet

Claire Lavigne, Antoine Roblin, Patrick Chervet, and Patrick Chazette
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Ultraviolet aureole around a source at a finite distance

Fred Riewe and Alex E. S. Green
Appl. Opt. 17(12) 1923-1929 (1978)

Atmospheric scattering of middle uv radiation from an internal source

R. R. Meier, J.-S. Lee, and D. E. Anderson
Appl. Opt. 17(20) 3216-3225 (1978)