Subj : ES Picture of the Day 20  2023
To   : All
From : Dan Richter
Date : Mon Feb 20 2023 11:01:26

 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.


 High Tatras Halo Display

   February 20, 2023


    Winter_Sun_halo_Slovakia

   Photographer:  Viktor Belicak
   Summary Authors:  Viktor Belicak;  Jim Foster
   Featured above is a panorama of an attention-getting  halo display I
   captured from the village of Zdiar in the very eastern part of the High
   Tatras Mountains of Slovakia. It was taken just after sunrise on
   December 18, 2022. The morning air was bitter cold -- temperature about
   0 degrees F (-18 C). Sunlight shining through  ice crystals
   suspended in the air, within 100 m or so of the surface, created this
   atmospheric wonder.

   Easily visible here are the  22-degree halo,  parhelia (sundogs)
   and upper  tangent arc (at top of 22-degree halo). Other arcs were
   visible as the Sun rose higher. Displays such as this can on occasion
   be observed at  ski resorts when  snow making equipment is used
   to augment the natural snowpack. However, high winds lifting ice
   crystals from the surface into the air or crystals  free-falling
   through the lower atmosphere may also result in these displays.

   Photo details: Panorama made of 6 photos; ISO 100; 18mm; f 8; 1/400
   second exposure.

   Zdiar, High Tatras, Slovakia Coordinates: 49.2713, 20.2734


Related EPODs

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   from Viterbo Airport, Italy  Anti-twilight Colors and Belt of Venus
    Splendid Sundog over Montreal, Canada  The Fisherman and the
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    More...

Atmospheric Effects Links

     *  Atmospheric Optics
     *  Optic Picture of Day: Gruppo Astrofili Galileo Galilei
     *  Color and Light in Nature
     *  The Colors of Twillight and Sunset
     *  Refraction Index
     *  Image Gallery: Atmospheric Effects
     *  What is a Rainbow?

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

https://epod.usra.edu
 
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