 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.


 Sunrise and Cloud Mirages Observed from Monte Tomba, Italy

   April 28, 2021

    2021_01_30 - Sunrise

    Venturin - Sunrise 2

   Photographer:  Giacomo Venturin
   Summary Authors:  Giacomo Venturin;  Jim Foster

   Mock  mirages at  sunrise or sunset are quite common (top photo),
   but one morning several weeks ago, while observing from  Monte
   Tomba,  Cavaso del Tomba, Italy, I also saw cloud mirages (bottom
   photo). This was a first for me. Initially, I didn't understand why the
   clouds near the horizon looked so strange -- I thought my eyes were
   focusing properly. Then I realized that the  clouds were miraged as
   well. When  mirages are seen,  temperature variations near the
   surface must be sufficiently strong to enable light rays to bounce up
   and down before reaching the observer’s eyes. Photos taken on February
   16, 2021.
   Photo Details: Canon 70/200 + 2x camera; Canon 60D lens; 400 mm; f/11;
   100 ISO, 1/30 second exposure.
     * Cavaso del Tomba, Italy Coordinates:  45.8700, 11.9032

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Atmospheric Effects Links

     *  Atmospheric Optics
     *  Color and Light in Nature
     *  The Colors of Twillight and Sunset
     *  Refraction Index
     *  Image Gallery: Atmospheric Effects
     *  What is a Rainbow?

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   Space Research Association.

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