• ES Picture of the Day 28 2023

    From Black Panther@21:1/186 to All on Sat Jan 28 11:01:02 2023
    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.


    Winter’s Black and White — and Gray — World

    January 27, 2023

    RayB_epod_slcapsnow424c_01jan23 (003)

    RayB_epod_muryparksnow459c_03jan23 (003)

    Photographer: Ray Boren

    Summary Author: Ray Boren

    Storminess and repetitive snow-shoveling kept me home most of the time,
    but during a few breaks in the weather I felt compelled to see what all
    that snow was doing. I was surprised by how desaturated the urban world
    around me seemed, as demonstrated in the two photographs here. And to
    be clear: These are COLOR photographs. The first, taken on New Year’s
    Day, January 1, 2023, is of a tree-lined promenade that encircles the
    Utah State Capitol in Salt Lake City. Strips of fresh snow, instead
    of springtime cherry blossoms, line the trees, and a man can be seen
    walking away, disappearing around a curve in wispy fog. A second image,
    taken on the third day of the weather event, January 3, 2023, features
    a calm, reflective pond fed by Little Cottonwood Creek, in Salt
    Lake City, in the middle of the Salt Lake Valley.

    Seeing the world “ in black and white” has come to imply a narrow
    perspective. But the lack of color, as we perceive it with limited
    human eyes, can represent both reality and an aesthetic choice.
    Ansel Adams, the famed exponent of black and white photography,
    noted this, and used the gradations between black and white to express
    his appreciation for the grays in his images — and in life. “Our lives
    at times seem a study in contrast,” he said, “love and hate, birth and
    death, right and wrong … everything seen in absolutes of black and
    white. Too often we are not aware that it is the shades of gray that
    add depth and meaning to the starkness of those extremes.”

    Plentiful rain turned to water-heavy snow as the new year, 2023,
    debuted where I live, on the Rocky Mountains’ western margin. Snow
    piled up over several bleak mid-winter days, as low blankets of cloud
    smothered the landscape. The U.S. National Weather Service reported
    that an atmospheric river — sometimes called a “Pineapple Express”
    — was flowing from the tropics across the Pacific Ocean, aiming its
    potent moisture first at coastal California, which experienced
    flooding. The flow surged inland across the Sierra Nevada Range and
    North America’s Great Basin before slamming into Utah’s Wasatch
    Mountains (and ski resorts). It’s a heck of a way to run a historic
    drought, which has been afflicting the West for two decades, according
    to the National Oceanic and Atmospheric Administration.


    Salt Lake City, Utah Coordinates: 40.7608, -111.8910


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    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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  • From Black Panther@21:1/186 to All on Tue Feb 28 11:00:30 2023
    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.


    Mutualism Between Flowers and Honeybees

    February 28, 2023

    Menashe_mutualismepod_Picture1

    Menashe_mutualismepod_Picture2

    Photographer: Menashe Davidson

    Summary Author: Menashe Davidson

    In mutualistic interactions, both species benefit. Ecologists
    believe that almost every species on Earth is involved directly or
    indirectly in one or more of these interactions. They’re crucial to the
    reproduction and survival of many plants and animals.

    While walking on a sunny day mid-winter’s day a few weeks back, in the
    Iris Argaman Nature Reserve, in Israel, I was fascinated to follow
    the mutualism between wildflowers and honeybees. The flower serves as
    an “advertisement” and usually offers the pollinator an incentive to
    visit. The pollinators of course get nectar and pollen from the
    flower, and the flower gets a carrier for its pollen grains.

    In general, bees are most attracted to flowers that are open and easy
    to access. The top photo shows a honeybee collecting nectar from the
    bottom of the yellow flower of Oxalis. The bottom photo shows an
    Anemone coronaria, a flowering plant native to the Mediterranean
    region. In this case the central mound consists of tightly packed
    pistils in the center, with a crown-like ring of stamens,
    offering easy access to the visiting pollinators. Click here to see
    a video of the Iris Argaman Nature Reserve. Photos taken on January 15,
    2023.


    Argaman Nature Reserve, Israel Coordinates: 32.28169, 34.84123


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    Plant Links

    * Discover Life
    * Tree Encyclopedia
    * What are Phytoplankton?
    * Encyclopedia of Life - What is a Plant?
    * USDA Plants Database
    * University of Texas Native Plant Database
    * Plants in Motion
    * What Tree is It?

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

    https://epod.usra.edu

    --- up 1 year, 1 day, 20 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (21:1/186)