Subj : MODIS Pic of the Day 24 April 2022
To   : All
From : Dan Richter
Date : Sun Apr 24 2022 12:00:44

April 24, 2022 - Contrails over the Maritimes

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   Contrails over New Brunswick & Nova Scotia
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   On April 21,2022, the Moderate Resolution Imaging Spectroradiometer
   (MODIS) on board NASA’s Terra satellite acquired a gorgeous true-color
   image of New Brunswick, Nova Scotia, and Prince Edward Island, Canada.
   Snow still clings to the landscape of New Brunswick and the very
   northern-most tip of the peninsula of Nova Scotia, while the Isthmus of
   Chignecto and Prince Edward Island are snow-free. The Isthmus of
   Chignecto connects the main Nova Scotia peninsula to New Brunswick and
   the Canadian mainland. Prince Edward Island lies northeast of the
   Isthmus.

   In addition to snow, dozens of white streaks cross New Brunswick, the
   Isthmus of Chignecto, Prince Edward Island and the Bay of Fundy.
   Several long streaks also surround Nova Scotia, although the atmosphere
   over the peninsula appears clear. These streaks are known as
   condensation trails, or contrails and are the result of aircraft
   flight.

   Contrails are actually a type of cloud, and form in a similar way as
   naturally occurring cirrus clouds. At high altitudes, where it’s cold
   enough—at least -39°C (-38°F)—water vapor can easily freeze onto small
   particles in the atmosphere and form clouds. When the phenomenon
   involves particles from the exhaust of aircraft, the resulting long,
   narrow cloud is categorized as a contrail.

   Image Facts
   Satellite:  Terra
   Date Acquired: 4/21/2022
   Resolutions:  1km (147.9 KB),  500m (388.3 KB),  250m (1.1 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=2022-04-24
 
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