The zone of intertropical convergence (ZCIT) , also known under the name of intertropical face , of zone of equatorial convergence or more familiarly for the sailors of “ Pot to the black ”, is a belt of zones of low pressures surrounding the Ground close to the equator. It is formed by the convergence of the masses of hot air and wet coming from the tropics.

The localization of the zone of intertropical convergence wavers around the equator, passing from the northern Hemisphere with the Southern hemisphere and vice versa according to an annual rhythm, following the variation of the Sun. One observes also a cycle Diurne, where the Cumulus of the morning become storms at the end of the afternoon.

In Climatology, the ZCIT corresponds to the weather equator .

Impacts

The variations of the ZCIT have an important effect on precipitations for several equatorial nations, producing the dry and wet seasons that one observes there. Prolonged anomalies of the ZCIT can produce serious floods or drynesses in the intertropical zones.

Refer

• Article of NASA on the ZCIT

Simple: Wind#Planetary_wind_belts

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