• MODIS Pic of the Day 23 March 2023

    From Dan Richter@1:317/3 to All on Thu Mar 23 12:00:20 2023
    March 23, 2023 - Dust Storm in Northern China

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    A strong spring storm brought heavy snows, blizzard conditions, and
    winds gusting to 60 mph (96.6 km/h) across Mongolia on March 21, 2023.
    As the winds roared over the Gobi Desert, they picked up massive
    amounts of dust, creating a massive dust storm both in Mongolia and, by
    March 22, in northeastern China.

    The Moderate Resolution Imaging Spectroradiometer (MODIS) on board
    NASA’s Terra satellite acquired a true-color image of the dust storm on
    March 22. The immense blanket of dust obscures an area that measures
    about 190,000 square miles (492 square kilometers) completely from
    view. That’s larger than the country of Sweden. The dust is entrained
    in the clouds in some areas, while a thinner veil of dust reaches
    Russia and the Korean Peninsula.

    According to several media reports, the air quality in Beijing, China
    tumbled to unhealthy levels as the sandstorm rolled in. Concentrations
    of PM10 aerosols were said to have reached 1,667 micrograms per cubic
    meter early in the morning, or about 37 times the daily average
    guideline set by the World Health Organization. PM10 refers to
    aerosolized particles that measure less than 10 micrometers or less, a
    size that permits them to be inhaled into the lungs, where they can
    cause respiratory damage.

    Image Facts
    Satellite: Terra
    Date Acquired: 3/22/2023
    Resolutions: 1km (653.7 KB), 500m (2 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=2023-03-23

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