Aerial Superhighway

  • Released Tuesday, February 7, 2012
  • Updated Thursday, December 3, 2015 at 12:35PM
  • ID: 10902

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The polar jet stream, as you've never seen it before.

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The polar jet stream is strongest in winter when the temperature difference between warm and cold air in the Northern Hemisphere is at its highest.

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Narrow cold air pockets sinking from the Arctic sometimes pinch off warmer air flowing along the jet stream as seen in this sequence.

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Banded cirrus clouds running perpendicular to the jet stream—a telltale feature photographed by an astronaut aboard Space Shuttle Discovery.


Please give credit for this item to:
NASA's Goddard Space Flight Center

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