Subj : ES Picture of the Day 02  2022
To   : All
From : Dan Richter
Date : Thu Jun 02 2022 12:00:42

 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.


 Snowflakes on Mount Etna

   June 02, 2022

    Epod-cinzia-fioccodineve

   Photographer:  Cinzia Lo Certo

   Summary Authors:  Cinzia Lo Certo;  Cadan Cummings

   The photo above was taken during a cold winter morning on  Mount
   Etna near Nicolosi, Italy. At an elevation of around 3,280 feet (1,000
   meters) above sea level, this region on Etna sometimes experiences
    weather conditions that can produce snow. These snowflakes form
   when a water droplet condenses and freezes around a small particle in
   our atmosphere, such as  dust or pollen. As a water droplet freezes,
    ice crystals slowly begin growing. Throughout the process, ice
   crystals continue to grow as they encounter ever-changing conditions in
   our atmosphere with different  humidity and  temperature. These
   tiny fluctuations favor or inhibit the formation of different ice
   crystal structures. The two basic processes in which crystals develop
   are through  'facets / flat faces' or 'branches'. Often these two
   processes alternate back and forth during snowflake creation, however,
   they can also happen simultaneously. In the case of the snowflakes
   above, they are in the  plate formation zone with a temperature
   between 26°F to 32°F (-3°C to 0°C).
     * Nicolosi, Mount Etna Coordinates:  37.6175, 15.0241

Related EPODs

    Snowflakes on Mount Etna  Ice Crystal Formation on Frozen Soap
   Bubble  2022 Ice Out Dates for Sebago Lake, Maine  Melting Frost
   on a Windshield  Palmer Archipelago, Antarctica Reflection
    Hoarfrost Crystals in Maine
    More...

Cryosphere Links

     *  Guide to Frost
     *  What is the Cryosphere?
     *  Bentley Snow Crystals
     *  Glaciers of the World
     *  Ice, Snow, and Glaciers: The Water Cycle
     *  The National Snow and Ice Data Center Google Earth Images
     *  Snow and Ice Crystals

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

https://epod.usra.edu
 
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