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Ground fog is a name given to fog that forms a shallow layer near the ground, sometimes just tens of centimeters thick. It can form due to warm air moving over a colder surface (advection fog), or at night due to the escape of thermal radiation into space (radiation fog). This scene is in Nordstemmen, Lower Saxony, Germany just after sunset.

Previously selected pictures: noctilucent cloud, Elie, Manitoba tornado, Dust storm from space, More...