 EPOD - a service of USRA

The Earth Science Picture of the Day (EPOD) highlights the diverse processes
and phenomena which shape our planet and our lives. EPOD will collect and
archive photos, imagery, graphics, and artwork with short explanatory
captions and links exemplifying features within the Earth system. The
community is invited to contribute digital imagery, short captions and
relevant links.


 Helical Clouds

   March 12, 2021

    EDE11E30-0630-43DF-BCEC-07E407484929

   Photographer:  Nelson Reticence
   Summary Authors:  Nelson Reticence;  Jim Foster
   These eye-catching  clouds were observed over Holyoke,
   Massachusetts, at sunset on November 24, 2020. Looking like helical DNA
   strands or breaking  waves, they form where the layer of air that
   contains the clouds moves at a different  velocity and has a
   different density than the air in the layer just above the clouds. This
   results in  air flows that tend to have a distinct serpentine
   motion.
     * Holyoke, Massachusetts Coordinates:  42.2043, -72.6162

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    More...

Cloud Links

     *  Atmospheric Optics
     *  The Cloud Appreciation Society
     *  Cloud Atlas
     *  Color and Light in Nature

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   Earth Science Picture of the Day is a service of the  Universities
   Space Research Association.

https://epod.usra.edu
 
