File:Contrails over Scandinavia (MODIS).jpg

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Captions

Captions

The skies over Scandinavia were crisscrossed with condensation trails, each tracing the passage of aircraft, on April 18, 2023.

Summary

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Description
English: The skies over Scandinavia were crisscrossed with condensation trails, each tracing the passage of aircraft, on April 18, 2023. The Moderate Resolution Imaging Spectroradiometer (MODIS) on board NASA’s Aqua satellite acquired this true-color image on that same day.

High-altitude aircraft often leave behind condensation trails, or contrails, especially when flying through humid air. Contrails form in the wake of passing aircraft due to particles and water vapor contained in their exhaust. Airplane jet engines produce water vapor as they burn jet fuel. At high altitudes (above 20,000 feet), the air is so cold that the expelled vapor quickly condenses and freezes. In dry air, these ice crystals will undergo sublimation, changing directly from solid into a gas, leaving no visible trace. However, when the air is humid, long, linear cirrus clouds form along the track of the passing plane.

In this image, a few contrails can be seen over Norway (upper left) and Sweden (upper right). In contrast, the skies over Denmark’s Jutland Peninsula as well as the waters of the Skagerrak between Denmark, Norway, and Sweden are thick with contrails. The city of Copenhagen, Denmark, is served by two airports, with the Copenhagen Kastrup Airport the busiest in Scandinavia. It serves 61 different airlines with flights heading to 121 different destinations.
Date Taken on 18 April 2023
Source

Contrails over Scandinavia (direct link)

This image or video was catalogued by Goddard Space Flight Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: 2023-04-20.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.
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Author MODIS Land Rapid Response Team, NASA GSFC
This media is a product of the
Aqua mission
Credit and attribution belongs to the mission team, if not already specified in the "author" row

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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