Kelvinography – The Kelvin-Helmholtz Wave Cloud

The Kelvin-Helmholtz wave cloud looks like crashing ocean waves. These beautiful clouds are named after German physicist Hermann von Helmholtz and British physicist Lord Kelvin, because they form when two different layers of air are moving past each other at different speeds. The above layer is faster. Some parts of the boundary – a shearing layer – move down, and others move up.

Read more: http://www.toptenz.net/top-10-unusual-but-fascinating-cloud-formations.php#ixzz1amy7iGRm

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