Subj : MODIS Pic of the Day 23 March 2023
To   : All
From : Dan Richter
Date : Thu Mar 23 2023 12:00:20

March 23, 2023 - Dust Storm in Northern China

   Dust
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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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