Over the Pacific ocean appeared cloud "Valentine"

String of hearts formed in the clouds over the South Pacific. Where in the sky "Valentine"? It's all about the hydrodynamics.

This cloud pattern known as a vortex trail background Pockets and can be observed in different places of the planet. When the fluid flow encounters the bad streamlined the object, the collision causes the flow of an AC rotating on the leeward side of the object. In this case, the vortices appeared when the wind passed through the Islands of Juan fernández 670 km from the coast of Chile.

The vortices background of the Pocket can be formed whenever a strong collision of the air flow with a barrier, but that they could see, you need clouds or smoke. So, February 2, swirls formed as a layer of marine stratocumulus clouds. The excitement showed in the pictures obtained by the NASA satellite "Aqua".

The vortices in the left part of the image lined up behind the island Alekhandr-Selkirk, the largest of the Islands of the archipelago Juan Fernandez. Towering at 1268 meters above the sea level, it is also the highest in the group of Islands. The vortices on the right are drawn for two other Islands of the Chilean archipelago, Robinson Crusoe and Santa Clara. The second image shows the right "Valentine" closeup.

For the formation of such vortex trails the island has to be high enough to around him, not over him, it was enough air. The wind in the lower atmosphere should have a corresponding constant speed, which is typical for trade winds.

Translated by «Yandex.Translator»