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Applied Optics

Applied Optics


  • Vol. 18, Iss. 15 — Aug. 1, 1979
  • pp: 2663–2671

Scattering of solar radiation by hexagonal ice crystals

Peter Wendling, Renate Wendling, and Helmut K. Weickmann  »View Author Affiliations

Applied Optics, Vol. 18, Issue 15, pp. 2663-2671 (1979)

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The classical ray optics approximation has been applied to compute the angular scattering of light by finite-sized hexagonal ice crystals in the form of columns and plates. The results are presented at a wavelength of 0.55 μm for a random orientation of the crystals either in space or in a plane. The results are also compared to those of ice spheres. For the first time the angular light scattering of platelike crystals and a quantitative description of the 46° halo are given. Contrary to earlier studies, it is shown that both plate- and columnlike ice crystals show a strong backscattering. In agreement with previous studies, ice spheres are found to scatter—when compared to ice prisms—less energy at angles near 90°. With regard to the effect of orientation on the light scattering, it is shown that columnlike crystals randomly oriented in a plane behave rather like spherical particles and not like columns randomly oriented in space.

© 1979 Optical Society of America

Original Manuscript: February 7, 1979
Published: August 1, 1979

Peter Wendling, Renate Wendling, and Helmut K. Weickmann, "Scattering of solar radiation by hexagonal ice crystals," Appl. Opt. 18, 2663-2671 (1979)

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