Odd radius halos and diffuse arcs in Fairbanks

In addition to diffuse arcs, another curiosity was also seen: odd radius column arcs. While they are regularly observed in high clouds, in diamond dust they have occurred only once before, at South Pole. The photo above, taken by Tape, shows poorly developed 9° odd radius column arcs as enhancements on the sides of the 9° halo.
1 Comments:
Very nice halos! Fairbanks is paradise of odd radius halos!
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