• ES Picture of the Day 07 2020

    From Black Panther@21:1/186 to All on Sat Nov 7 11:00:28 2020
    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 - Carpenter Falls and Differential Weathering

    November 07, 2020

    Falls3

    Every weekend we present a notable item from our archives. This EPOD
    was originally published November 7, 2003.

    Referred by: Peter Saracino
    Summary author: Peter Saracino

    Located in the Finger Lakes region of upstate New York, Carpenter Falls
    is a wonderful study in differential weathering. The cataract is one of
    several beautiful waterfalls that can be found along Bear Swamp creek
    as it journeys to Skaneateles Lake. The creek flows over a shelf of
    Tully Limestone before plummeting straight down for 85 feet (26 m) --
    this limestone is more resilient than the underlying shale.
    Fast-flowing water, combined with the action of ice, has created a
    large recess behind the falls. Eventually, the limestone shelf will
    break under its own weight, causing the falls to walk back upstream.

    Of interest to note is the fact that the 13th President of the United
    States, Millard Fillmore, may have enjoyed the beautiful serenity of
    this place. He was born only a few miles down the road from Carpenter
    Falls.

    Steve Duprey contributed to this caption.


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    Geology Links

    * Earthquakes
    * Geologic Time
    * Geomagnetism
    * General Dictionary of Geology
    * Mineral and Locality Database
    * Mohs Scale of Mineral Hardness
    * This Dynamic Earth
    * USGS
    * 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

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  • From Black Panther@21:1/186 to All on Mon Dec 7 11:00:48 2020
    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.


    Sombrero del Teide

    December 07, 2020

    SOMBRERO PICO VIEJO 19 OCT 20-1-4

    Photographer: Roberto Porto
    Summary Author: Roberto Porto
    Shown above is a spectacular, multilayered accessory cloud I
    observed at sunset over the Teide and Pico Viejo volcanoes,
    from Teide National Park (Canary Islands), Spain. Strong winds
    forced moisture-laden air up the slopes of the 12,198 ft (3,781 m)
    Teide volcano, resulting in these breathtaking lenticular clouds
    and cap clouds, known locally as sombrero del Teide. Photo
    taken on October 20, 2020.

    Photo Details: Camera: NIKON D7500; Software: Adobe Photoshop Lightroom
    Classic 8.4.1 (Macintosh); Exposure Time: 0.010s (1/100); Aperture:
    ƒ/4.0; ISO equivalent: 100; Focal Length (35mm): 42; Lens: TAMRON AF
    18-200mm F3.5-6.3 XR Di II LD Aspherical IF Macro A14NII
    * Teide National Park, Spain Coordinates: 28.2539, -16.6183

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    Atmospheric Effects Links

    * Atmospheric Optics
    * 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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