Tossup
The extent at which these phenomena terminate may be predicted by applying Hide’s theorem to a two-level model of them named for Held and Hou. The energy used to drive these phenomena is derived from structures predicted by Joanne Simpson and Herbert Riehl named “hot towers.” These phenomena are often cited as an example of a subsidence inversion, which commonly occurs in their descending branch, leading to adiabatic warming. The strength of these prototypical “thermally direct” phenomena varies alongside a related feature named for Walker in the El Niño–Southern Oscillation. The convergence of these phenomena results in the Intertropical Convergence Zone, and they drive the flow of the trade winds. For 10 points, name this atmospheric circulation located along the equator, below the higher latitude polar and Ferrel cells. ■END■
ANSWER: Hadley cells [or Hadley circulation; accept Hadley alone after “circulation” is read]
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