Hadley Cell

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  • Created on: 16-05-10 20:27
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Hadley Cell
The Hadley Cell involves air rising near the
equator, flowing toward the North and South
Poles, returning to the surface of the Earth in
the subtropics, and flowing back toward the
equator at the surface of the Earth. This
produces winds called the trade winds and the
tropical easterlies.
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Image courtesy of Tinka Sloss
The Hadley cell is an atmospheric circulation pattern in the tropics that produces winds
called the tropical easterlies and the trade winds. In the Hadley cell, air rises up into the
atmosphere at or near the equator, flows toward the poles above the surface of the
Earth, returns to the Earth's surface in the subtropics, and flows back towards the

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This flow of air occurs because the Sun heats air at the Earth's surface near the
equator. The warm air rises, creating a band of low pressure at the equator. Once the
rising air reaches the top of the troposphere at approximately 1015 kilometres above
the Earth's surface, the air flows toward the north and south poles. The Hadley cell
eventually returns air to the surface of the Earth in the subtropics, near 30 degrees north
or south latitude.…read more


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