Which mechanism limits the poleward extent of Hadley cells in Earth's atmosphere?

💡 Explanation

The Hadley cells are limited by the Coriolis effect, which deflects poleward-moving air masses eastward due to Earth's rotation, increasing with latitude until the air descends at about 30 degrees. In the poles, rather than ozone or thermopause regulation processes, the Coriolis force dominates. Therefore, the easterly jetstreams result, due to the effect from Coriolis.

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