Subj : ES Picture of the Day 24  2022
To   : All
From : Dan Richter
Date : Sun Apr 24 2022 12:01:04

 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.


 Archive - Great Sand Dunes National Park

   April 23, 2022

    6a0105371bb32c970b015393cbfb9b970b

   Every weekend we present a notable item from our archives.

   This EPOD was originally published on December 9, 2011.

   Photographer:  Ingrid Wood
   Summary Author:  Ingrid Wood;  Jim Foster
   The photo above shows the massive tan-colored  dunes in  Great
   Sand Dunes National Park and Preserve, Colorado. Hikers in the
   foreground give scale to the immense size of these windblown sand
   dunes, which reach up to about 750 ft (230 m) above the surrounding
   landscape -- perhaps the tallest in North America. These dunes cover
   some 39 sq mi (100 sq km) and over thousands of years have settled up
   against the windward flank of the  Sangre de Cristo Mountains,
   pushed by  prevailing southwest winds across the  San Luis
   Valley. The source of the sand was a widespread  sand sheet, sand
   left behind when ancient lakes dried up, in the central portion of the
   San Luis Valley. Photo taken on August 22, 2007.

   Photo Details: Camera: Canon PowerShot A530; Focal Length: 9.8mm;
   Aperture: f/7.1; Exposure Time: 0.0031 s (1/320).
     * Great Sand Dunes, Colorado Coordinates: 37.73287, -105.51212

Related EPODs

    Archive - Great Sand Dunes National Park  Drone Image Over Mount
   Etna  Archive - Glacial Evidence in Central Park  Muonionalusta
   Siderite Sample  Archive - Mud Cracks near Trona, California
    Rainbow Pyrite
    More...

Geology Links

     *  Earthquakes
     *  Geologic Time
     *  Geomagnetism
     *  General Dictionary of Geology
     *  Mineral and Locality Database
     *  Mohs Scale of Mineral Hardness
     *  This Dynamic Earth
     *  USGS
     *  MyShake - University of California, Berkeley
     *  USGS Ask a Geologist
     *  USGS/NPS Geologic Glossary
     *  USGS Volcano Hazards Program

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

https://epod.usra.edu
 
--- up 7 weeks, 6 days, 21 minutes
 * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3)

.