MSGID: 1:317/3 6446c3c6   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
   April 24, 2023 - Dust over East Asia   
      
      Dust   
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      On April 21, 2023, the Moderate Resolution Imaging Spectroradiometer   
      (MODIS) on board NASA’s Aqua satellite captured a true-color image of   
      another pulse of dust from the Gobi Desert pouring over East Asia. Dust   
      storms rising from the Gobi Desert are common, especially in the   
      springtime when gusty winds sweep eastward over the desert.   
      
      Several severe storms have blanketed China, the Korean Peninsula, and   
      northern China in March and April this year. One massive storm struck   
      on March 26, creating a comma-shaped blanket of tan dust that affected   
      more than 500 million people in China. Another dust storm on April 11   
      brought widespread air pollution, with PM10 (suspended particulate   
      matter) in Beijing reported at 1,321 micrograms per cubic meter—a level   
      almost 30 times the daily guideline set by the World Health   
      Organization. A review of daily Aqua satellite imagery shows only one   
      relatively dust-free day across the region during the first three weeks   
      of April and four clear-sky days in March.   
      
      Underneath the widespread cloud of dust, the blue waters of the Sea of   
      Japan appear to be tinted with green, which is evidence of a   
      phytoplankton bloom. Phytoplankton are microscopic plant-like organisms   
      that live in these waters year-round and, when conditions are   
      favorable, can burst into rapid growth that creates large floating   
      blooms that can easily be seen from space. The minerals in dust can act   
      as potent nutrients to help spur phytoplankton growth.   
      
      Image Facts   
      Satellite:  Aqua   
      Date Acquired: 4/21/2023   
      Resolutions:  1km (2 MB),  500m (5.3 MB),  250m (3.9 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=2023-04-24   
       
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