Subj : MODIS Pic of the Day 20 November 2022
To   : All
From : Dan Richter
Date : Sun Nov 20 2022 11:00:50

November 20, 2022 - Dust Swirling over the Mediterranean

   Dust
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   Gusting winds carried Saharan dust over the Mediterranean Sea in
   mid-November 2022.

   On November 17, the Moderate Resolution Imaging Spectroradiometer
   (MODIS) on board NASA’s Terra satellite acquired a true-color image of
   the start of a dust storm, with camel-colored sand and dust blown into
   a swirling pattern between Libya (south) and Greece. Subsequent MODIS
   images show that clouds of dust have continued to pulse over northern
   Libya and the Mediterranean through November 19. While the exact source
   of the dust isn’t clear, it appears to primarily rise from sand seas in
   northern Libya.

   Libya, a country about two-and-a-half times the size of the U.S. state
   of Texas, is one of the driest countries in the world. According to the
   United Nations Office for Coordination of Human Affairs, as of 2021,
   the country is more than ninety-five percent desert, with most of the
   land barren with flat to undulating plains. Only about one percent of
   the land is arable, and the country is forced to import about 75
   percent of the food needed to meet local needs. OCHA notes that the
   Great Man-Made River project, which provides 60 per cent of all fresh
   water used in Libya, draws water from non-renewable aquifers that
   cannot be recharged by rain. The country is susceptible to floods,
   sandstorms, dust storm and desertification. The UN notes that Libya is
   a country living in “fragile circumstances” and it is one of the areas
   severely vulnerable to the effects of climate change.

   Image Facts
   Satellite:  Aqua
   Date Acquired: 11/7/2022
   Resolutions:  1km (629.1 KB),  500m (1.5 MB),  250m (863 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=2022-11-20
 
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