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Which phenomenon depends critically on the tilting term?

  • A.The formation of a sea breeze front as the daytime circulation strengthens through the afternoon hours
  • B.Supercell mesocyclone formation
  • C.The intensification of a mid-latitude cyclone by convergence in the frictional boundary layer beneath
  • D.Rossby wave propagation

Answer: B

Environmental shear provides horizontal vorticity, and the updraught tilts it into the vertical, giving the rotating updraught that defines a supercell. Stretching then intensifies the rotation further. Synoptic cyclone intensification is dominated by stretching, Rossby waves depend on the beta effect, and the sea breeze arises from the solenoidal term, so none of the others requires tilting. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision.

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