Subj : ES Picture of the Day 04  2022
To   : All
From : Dan Richter
Date : Mon Jul 04 2022 12:01:10

 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.


 Northern Lights Take Center Stage Over Central Alaska

   July 04, 2022

    JohnC_IMG_3998Chumack032722HRweb (004)

    JohnC_IMG_4020ChumackHRweb (004)

   Photographer:  John Chumack

   Summary Author:  John Chumack;  Jim Foster

   Featured above are photos of  auroras I captured while teaching my
   annual  Aurora Workshop in Alaska earlier this year. After a
   two-year shutdown due to pandemic concerns, we finally received
   clearance to go north again. It was worth the wait! I have to say that
   these were some of the best auroras I’ve seen in 32-years of observing
   them.

    Northern lights or auroras occur whenever the energized particles
   that makeup the  solar wind interact with  oxygen and nitrogen
   molecules in the Earth’s upper atmosphere (at least 50 miles or 80 km
   above the surface). The key is that the Sun has to be sufficiently
   active to generate solar wind streams that reach the Earth’s orbit.
   Photos taken in late March 2022.
     * Chena Hot Springs, Alaska Coordinates: 65.0518, -146.0510

Related EPODs

    Northern Lights Take Center Stage Over Central Alaska  Solar
   Halo Over Torres Vedras, Portugal  Glory Observed Above Sicily,
   Italy  Rainbow Flashes  Solar Halo Above Eastern Slovakia
    Multicolored Aurora Over Finland
    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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