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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 28 — Oct. 1, 2011
  • pp: F121–F128

Crystals of hexagonal ice with ( 2 0 2 ¯ 3 ) Miller index faces explain exotic arcs in the Lascar halo display

Nicolas A. Lefaudeux  »View Author Affiliations


Applied Optics, Vol. 50, Issue 28, pp. F121-F128 (2011)
http://dx.doi.org/10.1364/AO.50.00F121


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Abstract

This article focuses on the 1997 Lascar halo display, during which very unusual arcs and halos were documented. Photographs have been analyzed with the aid of a specific image processing method developed by us. Using crystals of hexagonal ice with exotic ( 2 0 2 ¯ 3 ) Miller index faces, it is possible to simulate all the features of the display with constant crystal populations and oriented crystals in plate orientation. The simulations perform better than the cubic ice explanation. The existence of ( 2 0 2 ¯ 3 ) crystal faces is supported by a 1998 South Pole halo display.

© 2011 Optical Society of America

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

History
Original Manuscript: May 10, 2011
Revised Manuscript: July 14, 2011
Manuscript Accepted: August 2, 2011
Published: September 26, 2011

Citation
Nicolas A. Lefaudeux, "Crystals of hexagonal ice with (2 0 -2 3) Miller index faces explain exotic arcs in the Lascar halo display," Appl. Opt. 50, F121-F128 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-28-F121

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