Diamond-dust Sundog

This very bright “localized” sundog was formed in ice fog among trees along the Bow River in Calgary on a very cold winter day recently. The remarkable feature of this sundog is that trees are profiled against it. The equivalent sundog on the opposite side of the Sun was almost as bright. These sundogs varied in brightness as ice-fog density varied. Individual ice crystals show up as transient bright points.

Author: Alan Clark, Canada

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Posted on May 26, 2011, in ice phenomena, observations and tagged . Bookmark the permalink. 1 Comment.

  1. Claudia Hinz said…

    really wunderful diamond dust parhelia, specially the reflexion of the ice surface is very nice!

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