• MODIS Pic of the Day 14 July 2022

    From Dan Richter@1:317/3 to All on Thu Jul 14 12:00:56 2022
    July 14, 2022 - Munga-Thirri–Simpson Desert National Park

    Munga-Thirri–Simpson Desert National Park
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    Sand and salt playas crea te high-contrast scenery in the Munga-Thirri
    - Simpson Desert Conservation Park. The Moderate Resolution Imaging
    Spectroradiometer (MODIS) on board NASA’s Terra satellite acquired this
    true-color, sunshine-filled image of the arid desert on July 11, 2022.

    The Munga-Thirri-Simpson Desert Conservation Park sits in north-eastern
    South Australia, and spans 3.6 million hectares, making it Australia’s
    biggest national park. This is only part of the entire Simpson Desert,
    a huge intact desert system which also stretches into Northern
    Territory and Queensland. It is famous for its massive acreage filled
    with parallel, linear sand dunes that have formed as a result of wind
    erosion and sand deposition taking place over thousands of years. Some
    of the dunes stretch more than 100 km (60 miles) in length. Almost as
    spectacular, especially when seen from space, are the extensive array
    of playa (salt) lakes. These are flat, shallow lake beds that are
    covered with a layer of salt deposits. When flushes of rain come to the
    desert, these playa lakes may become temporarily moistened, but for
    much of the year most remain dry. They appear bright white because of
    the high reflectivity of the salt and minerals that encrust the lakes.

    Image Facts
    Satellite: Terra
    Date Acquired: 7/12/2022
    Resolutions: 1km (200.7 KB), 500m (503.7 KB), 250m (1.1 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=2022-07-14

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