voolutihke
Voolutihke is an atmospheric optical phenomenon characterized by a faint violet halo that can surround the Sun or Moon under certain high-altitude cloud and aerosol conditions. It is observed most often in polar or near-polar regions and during periods of unusual stratospheric composition, and is considered a rare variation of halo phenomena.
The term voolutihke originates from the Zyr language family and was adopted by scientists who first documented
Physically, voolutihke is believed to arise from the interaction of light with hexagonal ice crystals in cirrus
Geographically, reports of voolutihke are sporadic, with confirmed observations concentrated in high-latitude regions and elevated plateaus.
See also: atmospheric optics, halo phenomena.
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