intertropical convergence zone

also called  equatorial convergence zone 

      belt of converging trade winds and rising air that encircles the Earth near the Equator. The rising air produces high cloudiness, frequent thunderstorms, and heavy rainfall; the doldrums, oceanic regions of calm surface air, occur within the zone. The ITCZ shifts north and south seasonally with the Sun. Over the Indian Ocean, it undergoes especially large seasonal shifts of 40°–45° of latitude.

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Universalium. 2010.

Look at other dictionaries:

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  • intertropical front — noun : a zone of convergence of trade winds and equatorial winds often marked by heavy rains in tropical regions compare doldrum 3 …   Useful english dictionary

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