Subj : MODIS Pic of the Day 29 October 2022
To   : All
From : Dan Richter
Date : Sat Oct 29 2022 12:00:20

October 29, 2022 - Aerosols over India

   Aerosols
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   A shroud of haze stretched along the Indo-Gangetic Plain, stretching
   from Pakistan in the west to reach Bangladesh in the east in late
   October 2022.

   The Moderate Resolution Imaging Spectroradiometer (MODIS) on board
   NASA’s Aqua satellite acquired a true-color image of about half of the
   gray cloud of aerosols on October 26. The gray haze becomes thickest
   over Utter Pradesh, where it obscures the land beneath from view.

   Clusters of red hot spots, each representing actively burning fire, sit
   in northeastern Pakistan and northwest India. They are thickest in the
   Indian states of Punjab and Haryana, where rice and wheat are widely
   grown. These are primarily agricultural fires, primarily used to clear
   stubble from fields after harvest. Crop burning typically peaks during
   the first week of November a time that often coincides with falling
   temperatures and slow wind speeds, meteorological conditions that can
   lead to temperature inversions, which trap smoke in place.

   The fires release several types of gases into the atmosphere, including
   smog-forming carbon monoxide and nitrogen dioxide. They also release
   aerosols, such as black carbon and organic carbon, that contribute to
   elevated levels of PM2.5, which can cause health problems.

   While agricultural burning contributes heavily to the aerosol pollution
   and haze over the Indo-Gangetic Plain, it is not the only factor.
   Industry, coal burning for heat, and automobile emissions also heavily
   contribute to aerosol pollution in the region.

   Image Facts
   Satellite:  Aqua
   Date Acquired: 10/28/2022
   Resolutions:  1km (522.7 KB),  500m (1.8 MB),  250m (5.7 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=2022-10-29
 
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