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Applied Optics

Applied Optics


  • Vol. 42, Iss. 21 — Jul. 20, 2003
  • pp: 4269–4279

Observations and simulations of some divergent-light halos

Lars Gislén and Jan O. Mattsson  »View Author Affiliations

Applied Optics, Vol. 42, Issue 21, pp. 4269-4279 (2003)

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We deal with some halos generated by the divergent light from a nearby source. After discussing how the divergent light transforms some halo features, we give an outline of a method of handling the simulation of a divergent-light halo. The simulation method is then successfully tested on some well-documented halo observations. We also present a “simulation atlas” that shows halos produced by crystals of different shapes and for different light-source elevations and distances between the observer and the light source. The simulation method also admits a three-dimensional visualization of the phenomena.

© 2003 Optical Society of America

OCIS Codes
(010.1290) Atmospheric and oceanic optics : Atmospheric optics
(010.2940) Atmospheric and oceanic optics : Ice crystal phenomena
(010.3920) Atmospheric and oceanic optics : Meteorology

Original Manuscript: January 13, 2003
Revised Manuscript: April 28, 2003
Published: July 20, 2003

Lars Gislén and Jan O. Mattsson, "Observations and simulations of some divergent-light halos," Appl. Opt. 42, 4269-4279 (2003)

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  1. M. Minnaert, “Een halo in de onmiddellijke nabijheid van het oog,” Hemel en Dampkring 26, 51–54 (1928).
  2. J. O. Mattsson, “Sub-sun and light pillars of street lamps,” Weather 28, 66–68 (1973). [CrossRef]
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  6. J. O. Mattsson, L. Bärring, E. Almqvist, “Experimenting with Minnaert’s Cigar,” Appl. Opt. 39, 3604–3611 (2000). [CrossRef]
  7. Brief reports on the parhelic circle in divergent light are given in the Finnish journal Ursa Minor, published in Finnish, with some figure captions in English, by Tähtitieteellinen yhdistys Ursa in Helsinki. The pages and issues in question are 11, 1/2000 (a simulation by Walter Tape of a surface similar to the one in Fig. 1) and 13–14, 3/2001 (some observations).
  8. A. J. Mallmann, J. L. Hock, R. G. Greenler, “Comparison of sun pillars with light pillars from nearby light sources,” Appl. Opt. 37, 1441–1449 (1998). [CrossRef]
  9. L. Gislén, “Procedure for simulating divergent-light halos,” Appl. Opt., submitted for publication.
  10. W. Tape, Atmospheric Halos (American Geophysical Union, Washington, D.C., 1994). [CrossRef]
  11. R. Greenler, Rainbows, Halos, and Glories (Printstar Books, Milwaukee, Wisc., 1999).

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