Trade winds

Hadley found that air near the equator had a faster west-to-east motion than air farther from it. This is due to the uneven heating of the earth due to the sun: hotter at the equator, cooler at poles, and the coriolis effect. Today this model is called the Hadley cell.
 George Hadley England 1735 Trade winds

Hadley found that air near the equator had a faster west-to-east motion than air farther from it. This is due to the uneven heating of the earth due to the sun: hotter at the equator, cooler at poles, and the coriolis effect. Today this model is called the Hadley cell.