Sunday, January 10, 2021

Polar Stratospheric Clouds

Polar stratospheric clouds appear high in the sky in the polar regions in winter.   

Photos in Iceland. Photos by @ h0rdur c/o Fabulous Weird

They are composed of ice crystals and supercooled water droplets, sometimes mixed with nitric acid.


Wikipedia says: "Particles within the optically thin clouds cause colored interference fringes by diffraction." 


The visibility of the colors may be enhanced with a polarising filter."
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Thanks, Atlas Obscura and Fabulous Weird
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2 comments:

  1. MacDieterJanuary 10, 2021 at 6:07 PM

    Guess if I drew it in these colors everybody would call it unrealistic!

    ReplyDelete
  2. Michael PatriciaaJanuary 15, 2021 at 7:38 PM

    This comment has been removed by a blog administrator.

    ReplyDelete

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