NASA: Russia - Alaska zone - Cloud Streets over the Bering Sea, 01.08.13

acquired April 7, 2013 download large image (11 MB, JPEG, 7400x6000)

In early April 2013, clouds stretched in parallel rows for hundreds of kilometers over the Bering Sea. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image of the phenomenon on April 7, 2013.

The parallel clouds, known as cloud streets, originated along the edge of the sea ice, which extended southward from the snow-covered expanses of Russia and Alaska. The location of the cloud formation was not a coincidence. When cold air blows over ice and snow and encounters moist air over open water, the meeting of the air masses can cause the formation of parallel cylinders of spinning air. Clouds form along the upward cycle in the cylinders, where air is rising, and skies remain clear along the downward cycle, where air is falling.

In the north, light cloud cover partially obscured the sea ice, but its characteristic tendril shapes could still be seen through the clouds.

1. Related Reading

2. NASA Earth Observatory (2009, February 26) Cloud Streets and von Karman Vortices, Greenland Sea.
3. NASA Earth Observatory (2011, February 15) Winter Cloud Streets, North Atlantic.

NASA image courtesy Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott.

Instrument: 

Terra - MODIS

 

NASA: Russia - Alaska zone - Cloud Streets over the Bering Sea, 01.08.13

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