What is the Intertropical Convergence Zone?

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What is the Intertropical Convergence Zone?

The Intertropical Convergence Zone, or ITCZ, is a band of low pressure around the Earth which generally lies near to the equator. The trade winds of the northern and southern hemispheres come together here, which leads to the development of frequent thunderstorms and heavy rain.

What are the atmospheric conditions like in the ITCZ?

Atmospheric conditions in the ITCZ are very unstable. There are strong currents of rising air known as updraughts. As the air rises, the moisture within it condenses, clouds form and it rains. The unstable conditions in the ITCZ make equatorial regions some of the wettest in the world. These areas often experience heavy rainfall and thunderstorms.
What is the ITCZ and where does it move?
As the ocean heats up more slowly than land, the ITCZ tends to move further north and south over land areas than that over water. In July and August, the ITCZ lies well to the north of the equator over Africa, Asia and Central America before moving south into South America, central Africa and Australia by January and February.
How does the ITCZ make the equatorial regions wettest?
As the air rises, the moisture within it condenses, clouds form and it rains. The unstable conditions in the ITCZ make equatorial regions some of the wettest in the world. These areas often experience heavy rainfall and thunderstorms. The ITCZ is a very large feature which circles the globe.

The Intertropical Convergence Zone, or ITCZ, is the region that circles the Earth, near the equator, where the trade winds of the Northern and Southern Hemispheres come together.

What is the inverse of convergence?

The inverse of convergence is divergence . An example of a convergence zone is the Intertropical Convergence Zone (ITCZ), a low pressure area which girdles the Earth at the Equator. Another example is the South Pacific convergence zone that extends from the western Pacific Ocean toward French Polynesia.

Is the interannual rainfall anomalies for the ITCZ over Africa different?

Immediately evident is the fact that the interannual anomalies in the ITCZ position and intensity are weakest over Africa and strongest for the ITCZ over the central Pacific Ocean. Typical seasonal rainfall anomalies for the ITCZ over Africa are about ±0.5 mm day −1 and range up to about ±1.5 mm day −1 in the more extreme events.
What is large scale convergence called?
Large-scale convergence, called synoptic-scale convergence, is associated with weather systems such as baroclinic troughs, low-pressure areas, and cyclones. Small-scale convergence will give phenomena from isolated cumulus clouds to large areas of thunderstorms . The inverse of a convergence is a divergence .