MSGID: 1:317/3 63cecb44   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
   January 23, 2023 - Southern Patagonia Ice Field   
      
      Patagonia   
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      This stunning true-color image of a cloud-free summer day over the   
      South Patagonian Icefield was acquired on January 17, 2023, by the   
      Moderate Resolution Imaging Spectroradiometer (MODIS) on board NASA’s   
      Aqua satellite.   
      
      Sitting atop the Andes Mountains in southern South America, the   
      Patagonian Icefields are a remnant of a massive ice sheet that existed   
      about 18,000 years ago. Today, the ancient ice sheet has withered to   
      three remnants: the North, South, and Cordillera Darwin Icefields.   
      These modern icefields still contain the largest expanse of ice in the   
      Southern Hemisphere outside of Antarctica. only three icefields remain   
      of the ancient ice sheet.   
      
      The Southern Icefield, shown in this image, is the largest of the   
      three, stretching about 217 miles (250 km) along high Andes ridgetops.   
      Scientists currently estimate the size at about 12,200 square   
      kilometers (4,710 square miles), which is a little smaller than the   
      size of the U.S. state of Connecticut. It’s about three times the size   
      of the Northern Patagonian Icefield and both of those are much larger   
      than the Cordillera Darwin Icefield, which sits at the farthest tip of   
      the continent.   
      
      Several large and visually striking glacial lakes can be seen along the   
      edges of the Southern Icefield, especially along the eastern side. The   
      lakes are filled with meltwater from the Icefield glaciers as well as   
      from meltwater from each winter’s fresh snowfall. As glaciers slowly   
      slide along the mountains, their weight grinds the stone beneath into   
      very fine sediment, which is known as “glacial flour”. Glacial   
      meltwater carries the glacial flour into the lakes, creating the   
      remarkable and unique teal-colored appearance.   
      
      Image Facts   
      Satellite:  Aqua   
      Date Acquired: 1/17/2023   
      Resolutions:  1km (239 KB),  500m (604.3 KB),  250m (430.7 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=2023-01-23   
       
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