• MODIS Pic of the Day 20 April 2022

    From Dan Richter@1:317/3 to All on Wed Apr 20 12:00:40 2022
    April 20, 2022 - Taklamakan Shrouded in Dust

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    Taklimakan Desert
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    Sitting in western China and cradled on three sides by tall mountain
    ranges, the Taklamakan Desert is one of the most barren and driest
    areas on Earth. Created by the rain shadow of the surrounding
    mountains, parts of the Taklamakan receive only 10 millimeters (0.4
    inches) of rainfall in an entire year. It is also the world’s second
    largest shifting sand desert, with about 85 percent of its area filled
    with towering sand dunes, measuring up to 200-300 meters (650 to 900
    feet) that move with the prevailing winds. Thanks to its location close
    to frigid Siberia, the Taklamakan Desert experiences some of the
    Earth’s record cold temperatures in winter. Even in summer, nighttime
    temperatures remain chilly. Thanks to the topography, strong winds
    frequently blow across the expansive desert. And these winds create
    massive sandstorms, especially in the spring and summer.

    On April 18, 2022, the Moderate Resolution Imaging Spectroradiometer
    (MODIS) on board NASA’s Aqua satellite acquired a true-color image of
    the Taklamakan Desert veiled by a large dust storm. Snow tops the
    Kunlun Shan mountains to the south and the Tian Shan mountains to the
    north. Lake Issyk-Kul sits in the Tian Shan mountains of eastern
    Kyrgyzstan. The air over the mountains is dust-free, allowing a crisp,
    clear view of the landscape. In sharp contrast, dust covers the entire
    area over the Taklamakan Desert and, in the east, a band of dust
    completely obscures the land from view.

    Image Facts
    Satellite: Aqua
    Date Acquired: 4/18/2022
    Resolutions: 1km (296.4 KB), 500m (852.3 KB), 250m (3.1 MB)
    Bands Used: 1,4,3
    Image Credit: MODIS Land Rapid Response Team, NASA GSFC



    https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2022-04-20

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