Dust plumes, Namib Desert coast--Namibia Strong, hot winds known as "berg winds" (mountain winds) are lofting plumes of dust directly out into the Atlantic Ocean in this panoramic image taken from the International Space Station. The southern African equivalent of Santa Ana winds in California, berg winds blow on a few occasions in fall and winter, off all coasts of southern Africa. Other images from ISS have captured these dust plumes.
Namibia's great Sand Sea appears here as a reddish zone along part of the coast (image center). The Sand Sea is more than 350 km long, giving a sense of the length of the visible dust plumes. A light-toned sediment plume enters the sea at the mouth of the Orange River (image lower left), southern Africa's largest river.