 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.


 Fogbow Over Southern Ontario, Canada

   November 15, 2021

    Fogbow

   Photographer:  Malcolm Park

   Summary Author:  Malcolm Park;  Cadan Cummings

   Around 8:00am local time on September 16, Southern  Ontario, Canada
   was covered in a morning  fog. It is not uncommon for fog to form in
   the late summer into the fall as temperatures begin to drop at night,
   which causes water vapor in the air to  condense. I went for my
   morning walk, and I noticed this amazing  fogbow in the west. This
   was by far the best fogbow I have ever seen, but I haven't seen that
   many. I checked on my phone, and the Sun was at about  12 degrees
   altitude above the eastern horizon when I captured this picture.
   Different to  rainbows, fogbows form when light interacts with
   condensed water vapor (fog) in the air instead of the comparably larger
   diameter water droplets present after a rainstorm. In fact, it is this
   difference in droplet size that makes the fogbow less colorful because
   light is  refracted and reflected differently in fog than by a
   raindrop. After my walk, I drove west for about an hour and the fog as
   well as fogbow persisted for most of the drive. So, it was widespread
   from my experience, and I also saw reports of it online from other
   areas of the province.

   Photo Details: iPhone SE using panorama mode
     * Ontario, Canada Coordinates: 44.365, -76.627

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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.

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