Von Karman Vortices. As air flows over and around objects in its path, spiraling eddies, known as Von Karman vortices, may form. The vortices in this image, taken by Landsat 7 on July 4th, 2002, were created when prevailing winds sweeping east across the northern Pacific Ocean encountered Alaska’s Aleutian Islands. (Photo by NASA/GSFC/USGS EROS Data Center)
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