January 30, 2021 - Fog and Snow in Asia

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   Fog and Snow in Asia
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   On January 27, 2021, the Moderate Resolution Imaging Spectroradiometer
   (MODIS) on board NASA’s Aqua satellite acquired a beautiful false color
   image of a clear winter's day in northeastern Pakistan and northwestern
   India.

   While true-color images show the landscape as seen with the human eye,
   false-color images use data collected by different MODIS bands to
   enhance features that would be difficult to see in true-color. In this
   case, infrared and visible light (MODIS bands 7,2,1) are used to
   highlight vegetation and separate snow from cloud. In true-color
   images, both snow and cloud appear bright white but, in this scene,
   cold snow atop the Himalaya Mountains appears electric blue while low
   cloud (fog) cradled in the mountain valley remains white. Vegetation
   looks bright green and non-vegetated land appears as various shades of
   tan, with rugged or rocky landscape darker than flatter fields.
   Man-made structures, such as cities and large roadways, are easily
   visible as dark marks in the otherwise unbroken vegetation in India.

   Image Facts
   Satellite:  Aqua
   Date Acquired: 1/27/2021
   Resolutions:  1km (70.5 KB),  500m (1 MB),  250m (3.2 MB)
   Bands Used: 7,2,1
   Image Credit: MODIS Land Rapid Response Team, NASA GSFC



https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2021-01-30
 
