MSGID: 1:317/3 63879a48   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
   November 30, 2022 - Bloom in the Caspian Sea   
      
      Bloom   
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      Swirls of tan and green filled the southeastern corner of the Caspian   
      Sea on November 29, 2022, when the Moderate Resolution Imaging   
      Spectroradiometer (MODIS) on board NASA’s Aqua satellite acquired this   
      true-color image.   
      
      The color most likely comes primarily from phytoplankton, which are   
      microscopic plant-like organisms that live in these waters year-round   
      in small numbers. Given adequate sunlight and nutrition, phytoplankton   
      populations can explode into blooms large enough to be easily seen from   
      space. Tan color, especially near the eastern coastline off of Iran’s   
      deserts, is suggestive of floating sediment. Strong winds over the   
      previous few days likely blew sand and dust into this corner of the   
      Caspian Sea.   
      
      Phytoplankton blooms are often harmless, and are an important food   
      source for marine life. Other times, blooms can be harmful; they can   
      deplete the water’s oxygen and suffocate marine life, and produce   
      toxins that can be harmful to both aquatic creatures and humans.   
      
      Image Facts   
      Satellite:  Aqua   
      Date Acquired: 11/29/2022   
      Resolutions:  1km (114 KB),  500m (297.8 KB),  250m (187 KB)   
      Bands Used: 1,4,3   
      Image Credit: MODIS Land Rapid Response Team, NASA GSFC   
      
      
      
   https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2022-11-30   
       
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