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Sign in to searchECOLOGY AND ENVIRONMENT
PRERNA FOR IAS
GLOBAL ATMOSPHERIC CIRCULATION
1. Hadley Cell
The Hadley Cell is a major atmospheric circulation cell located between the Equator and 30° latitude in both hemispheres. Intense solar heating at the Equator causes warm, moist air to rise, creating a low-pressure zone known as the Intertropical Convergence Zone (ITCZ). As the air rises, it cools and moves poleward at high altitudes. Around 30° latitude, the air descends, forming subtropical high-pressure belts. The descending air returns toward the Equator as trade winds, completing the circulation cycle. The Hadley Cell influences tropical rainfall, monsoon systems, and the formation of major desert regions around the world.
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Learn about Hadley, Ferrel, and Polar cells governing Earth's atmospheric circulation, trade winds, and global weather patterns.
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