Which mechanism causes atmospheric pressure gradient between the equator and 30° latitude?

💡 Explanation

When warm, moist air rises at the equator, adiabatic cooling occurs causing condensation and precipitation this air then reaches the tropopause diverges aloft toward 30° latitude. Therefore Hadley cell air convergence aloft occurs, rather than Ferrel cell divergence, Polar cell cooling which involve different latitudinal locations and atmospheric dynamics.

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