5099 x 3415 px | 43,2 x 28,9 cm | 17 x 11,4 inches | 300dpi
Aufnahmedatum:
29. September 2008
Ort:
Anjajavy, northwest Madagascar
Weitere Informationen:
Altocumulus is a cloud belonging to a class characterised by globular masses or rolls in layers or patches, the individual elements being larger and darker than those of cirrocumulus and smaller than those of stratocumulus. Like other cumulus clouds, altocumulus signifies convection. It is usually white or gray, and often occurs in sheets or patches with wavy, rounded masses or rolls. Altocumulus clouds are often seen preceding a cold front, and their presence on a warm, humid, summer morning frequently signals the development of thunderstorms later in the day. Alto means "high" and these clouds may cause rain if they are higher up.