page_title: Hadley cell
hierarchical_section_title: Hadley cell
context_page_description: The Hadley cell, named after George Hadley, is a global scale tropical atmospheric circulation that features air rising near the Equator, flowing poleward at a height of 10 to 15 kilometers above the earth's surface, descending in the subtropics, and then returning equatorward near the surface. This circulation creates the trade winds, tropical rain-belts and hurricanes, subtropical deserts and the jet streams. Hadley cells are the low-altitude overtuning circulation that have air sinking at roughly zero to 30 degree latitude.
context_section_description: The Hadley cell, named after George Hadley, is a global scale tropical atmospheric circulation that features air rising near the Equator, flowing poleward at a height of 10 to 15 kilometers above the earth's surface, descending in the subtropics, and then returning equatorward near the surface. This circulation creates the trade winds, tropical rain-belts and hurricanes, subtropical deserts and the jet streams. Hadley cells are the low-altitude overtuning circulation that have air sinking at roughly zero to 30 degree latitude.
caption: Vertical velocity at 500 hPa, July average in units of pascals per second. Ascent (negative values) is concentrated close to the solar equator; descent (positive values) is more diffuse.
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