Subj : ES Picture of the Day 15  2022
To   : All
From : Dan Richter
Date : Tue Feb 15 2022 11:01:12

 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.


 Crepuscular Rays Over the Ionian Sea

   February 15, 2022

    Epod_crepuscularrays

   Photographer:  Vincenzo Russo

   Summary Author:  Vincenzo Russo

   When  sunlight passes through irregular obstacles- such as clouds or
   the profile of a mountain-  beams of light are created that appear
   to converge towards the  Sun. These distinct beams can be observed
   at either sunrise or sunset and are called  crepuscular rays. The
   photo above features crepuscular rays as observed from the coast of
    Acireale, Italy overlooking the Ionian Sea.

   Crepuscular rays widen and lose contrast as they move away from the
   Sun. However, in some instances if we look in the opposite direction
   away from the Sun, they become visible again as weak beams of light
   appearing to converge towards the  antisolar point. These beams on
   the horizon opposite the sunrise or sunset are called
    anticrepuscular rays. Both crepuscular and anticrepuscular rays
   produce beams that are parallel to one another although they appear to
   converge due to the  viewer’s perspective. Photo taken on November
   26, 2021, at 15:25 UTC.

   Photo data: Nikon D810a; Nikon 24-120mm f/4G; focal length:   34mm;
   f/8; ISO-200; 1/125” second exposure; software: Photoshop, Capture NX-D
     * Acireale, Italy Coordinates: 37.604, 15.172

Related EPODs

    Crepuscular Rays Over the Ionian Sea  Belt of Venus and Cirrus
   Vertebratus Cloud  Anvil Clouds and Crepuscular Rays  Twilight
   Colors over Biviere di Cesarò Lake  Double Rainbow Sunset Over Italy
    Solar Halos and Pillars Observed Over Germany
    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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