Which phenomenon amplifies existing temperature differences when air masses diverge above the Hadley cell?

💡 Explanation

When air masses diverge aloft, adiabatic cooling occurs because ascending air expands in lower pressure, strengthening temperature gradients, leading to enhanced cooling in raising air and warming in descending air. Therefore adiabatic cooling results, rather than changes in ocean current, aerosols, or albedo changes which involve additional factors.

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