Subj : ES Picture of the Day 18  2022
To   : All
From : Dan Richter
Date : Fri Feb 18 2022 11:01:06

 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.


 Clouds In a Fiery Sunset

   February 18, 2022

    DSC_0090m ep

   Photographer:  Teresa Molinaro

   Summary Authors:  Teresa Molinaro;  Cadan Cummings

    Sunrise and sunset are beautiful times of the day to photograph the
   gradually changing colors and  clouds of our sky. This is embodied
   by the photo above from the province of Palermo, Sicily on the evening
   of July 4, 2021, when the clouds appeared to be set ablaze in a fiery
   red hue. At around 9pm local time, the sky was suddenly tinged with
   color that quickly changed from orange to red. The reason the sky at
   sunrise and sunset is so vibrantly colored is due to  light
   scattering. As light passes through the atmosphere, its direction
   changes when it interacts with gases and small molecules on the way to
   our eyes. Longer  wavelengths of light (red and orange) are not as
   affected by scatter as shorter wavelength (blue and violet) light. When
   the  Sun angle is low on the horizon, the sunlight must pass through
   comparably more atmosphere, which causes increased scattering of blue
   and violet spectra. At sunset and sunrise, this unequal scattering is
   why we see mainly  red, orange, and yellow light on the horizon.

   Photo details: Nikon D3400, 70 mm lens, 1/5 second exposure, f/4.5,
   ISO-800,
     * Bagheria, Sicily, Italy Coordinates: 38.083, 13.500

Related EPODs

    Clouds In a Fiery Sunset  Analemma Observed in Taipei, Taiwan
    Dusty Sunset Over Sicily  Omega Sunrise Over Catania, Italy
    Zodiacal Light Mosaic from North and South Hemispheres  Earth’s
   Rotation and Revolution
    More...

Sun Links

     *  NASA Solar Dynamics Observatory
     *  NASA Solar Eclipse Page
     *  NOAA Solar Calculator
     *  The Sun-Earth Connection: Heliophysics
     *  The Sunspot Cycle
     *  Solar System Exploration: The Sun
     *  The Sun Now
     *  This Week’s Sky

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

https://epod.usra.edu
 
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