Subj : ES Picture of the Day 17  2022
To   : All
From : Dan Richter
Date : Mon Oct 17 2022 12:00:28

 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.


 iridescent Clouds Observed from Tuen Mun, Hong Kong

   October 17, 2022

    20210923_Iridescent_Cloud_DSCN1216

    TerryL_20220601_Iridescent_Pileus_Cloud_DSCN3143

   Photographer:  Terry Lui
   Summary Author:  Terry Lui;  Jim Foster

   I observed these two  iridescent clouds on the same day, June 1,
   2022, from Tuen Mun, Hong Kong. The cloud at top is likely an
    altocumulus cloud in the incipient stage of formation, and the
   cloud at bottom is a  pileus cloud. Both clouds show iridescence or
   irisation because their cloud droplets are small (perhaps 1/100 the
   size of a raindrop) and all are about the same size. The pastel colors
   result from the process of  diffraction – light waves are interfered
   with by the small droplets in such a way that orders of colors overlap
   each other.

   Tuen Mun, Hong Kong Coordinates: 22.3908, 113.9725


Related EPODs

    iridescent Clouds Observed from Tuen Mun, Hong Kong  Dew Drops
    Golden Cumulus Clouds over Mt Makiling at Sunrise  Thunderstorm
   and Rainbow over Zagreb, Croatia  Etna Volcano at Night
    Crepuscular Rays Observed from Turin, Italy
    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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