MSGID: 1:317/3 643c37d3   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
   April 16, 2023 - Clear skies over Patagonia   
      
      Clear Skies   
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      On April 12, 2023, clouds parted over Patagonia, allowing the Moderate   
      Resolution Imaging Spectroradiometer (MODIS) on board NASA’s Aqua   
      satellite to acquire a stunning true-color image of a sunny autumn day   
      across the region.   
      
      Patagonia, which spans more than 1 million square kilometers of the   
      southern tip of South America, is usually covered in clouds in   
      satellite imagery, thanks to frequent stormy weather. The region sits   
      in a belt of prevailing westerly winds, which carry systems across   
      southern Chile and Argentina. In addition, when moist air blowing in   
      from the Pacific Ocean strikes the tall Andes Mountains, it rises   
      upwards, where it cools and condenses into broad cloud cover.   
      
      The most iconic feature seen in the rare cloud-free glimpse shows both   
      the northern and southern Patagonian icefields, which are the remnants   
      of an ancient ice sheet that reached its maximum size about 18,000   
      years ago. Stretching eastward from the icefields are a series of   
      glacial lakes, colored in a variety of shades created by several   
      factors, including depth and sediment content. Like glaciers   
      everywhere, Andean glaciers have slowly pulverized the rocks below into   
      fine-grained sediments. This sediment, known as glacial flour, flows   
      into the glacial lakes, creating the bright turquoise colors that   
      brighten this image.   
      
      Image Facts   
      Satellite:  Aqua   
      Date Acquired: 4/12/2023   
      Resolutions:  1km (925.8 KB),  500m (2.3 MB),  250m (4.6 MB)   
      Bands Used:   
      Image Credit: MODIS Land Rapid Response Team, NASA GSFC   
      
      
      
   https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2023-04-16   
       
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