Kármán Vortex Streets and Ship Tracks Off Coast of Baja California, Mexico28.3N 118.5W
Visible in the clouds off the coast of Baja California, Mexico, are two different phenomena: Kármán Vortex Streets (in the lower right quadrant of the thumbnail) and ship tracks (visible in the lower part of the full image).
Kármán Vortex Streets are double rows of swirled vortices that are caused by the unsteady separation of flow of a fluid over bluff bodies. Here, these bluff bodies are islands off the coast of Mexico.
In the full image, the dense white lines through the clouds at the bottom are ship tracks, clouds formed around the exhaust released by passing ships.