Wednesday, 28 January 2009

Bright Tricker arcs in Prichovice

On 10 January 2009, Jan Smejkal observed a complex display in Prichovice, in which some rarer halo forms - such as the anthelion brightened by crossing Tricker arcs - were in action, too. The more frequent halo arcs included suncave and sunvex Parrys, Wegener, a faint helic, upper Tape arcs and subhelic arc ( 1 – 2 – 3 – 4 – 5 – 6 – 7 ). The photos also show a weak Liljequist parhelion ( 8 ).

Jan Smejkal described the weather during the complex halo in the following way: "On 10 January 2009, Prichovice was slightly above inversion, and time to time some very thin clouds crossed the sun. The display was observed at different intesities from around 9:00 until 11:30UTC when the sun got covered by clouds."

More information on the Czech diamond dust displays can be found in some articles at the following site: ( 9 ).

Text: Martin Popek and Matej Grek
at

2 comments:

  1. Jukka29 January 2009 at 07:30

    There are some very beautiful diamond dust displays in the link 9. And especially Tricker anthelic arcs in this posting are marvellous.

    ReplyDelete
  2. marko riikonen29 January 2009 at 11:46

    This display has a South Polean feel. There are thick stratus clouds around that have turned locally into ice crystals. Too bad we dont get displays formed this way in Finland.

    ReplyDelete