Wave-like clouds Kelvin-Helmholtz

We continue to acquaint you with the unusual shapes of the clouds. Next in our collection became the wave-like Kelvin-Helmholtz clouds. These clouds look like crashing ocean waves on the shore.

They were named after the German physicist Hermann von Helmholtz and the British physicist Lord Kelvin, and are formed when two different layers of air pass each other at different speeds. The upper layer was moving faster than the lower. Some areas of contact at the boundary (in shear) move downward, and the other - up. Wave-like clouds are usually a sure sign of atmospheric instability. Naturally, such a phenomenon scientists observe not only on our planet. Alas, geographically identify shots and failed.