File:Swirling cloud art in the Atlantic Ocean.jpg

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Summary

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Swirling cloud art in the Atlantic Ocean
Photographer
Envisat satellite
Title
Swirling cloud art in the Atlantic Ocean
Description
English: This false-colour Envisat image highlights a unique cloud formation, created by ‘Von Karman vortices’, south of the Canary Island archipelago, some 95 km from the northwest coast of Africa (right) in the Atlantic Ocean.

Von Karman vortices, named after aeronautical engineer Theodore von Karman, form as air flows around an object in its path, causing it to separate and create eddies in its wake.

The clockwise and counterclockwise spirals in this image were created as wind blowing from the north over the Atlantic was disturbed by the archipelago.

Seven larger islands and a few smaller ones make up the Canaries; the larger islands are (left to right): El Hierro, La Palma, La Gomera, Tenerife, Gran Canaria, Fuerteventura and Lanzarote.

Tenerife is the largest of the Canaries, while Gran Canaria is the most populated. UNESCO declared La Palma a Biosphere Reserve in 1983.

This image was acquired by Envisat’s Medium Resolution Imaging Spectrometer on 6 June 2010 at a resolution of 300 m.
Italiano: La ‘scia vorticosa di Karman’ si forma quando il flusso dell’acqua o dell’aria si muove attorno a un oggetto causandone la frammentazione e creando mulinelli in scia. In questa immagine, il vento che soffia da nord, disturbato dalle isole, crea nuvole a forma di spirale.
Depicted place Canary Islands
Date 6 June 2010
European Space Agency
Accession number
221499
Credit line ESA
Source http://www.esa.int/spaceinimages/Images/2010/06/Swirling_cloud_art_in_the_Atlantic_Ocean

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