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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.” (-5[1])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 (-5[1])Oscillation. The convergence of these phenomena results in the Intertropical Convergence Zone, and they drive (10[1])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■ (10[1]0[1])

ANSWER: Hadley cells [or Hadley circulation; accept Hadley alone after “circulation” is read]
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Summary

TournamentExact Match?TUHConv. %Power %Neg %Average Buzz
2025 ACF NationalsYes367%0%67%116.00