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Which area represents the convective inhibition?

  • A.The positive area above the level of free convection, which must be overcome before the parcel can rise freely
  • B.The whole area between the two plotted curves
  • C.The area between the surface temperature and the surface dew point measured along the lowest isobar of all
  • D.The negative area below the level of free convection

Answer: D

Convective inhibition is the negative area where the parcel is cooler than its environment, and it measures the energy that must be supplied to lift the parcel to its level of free convection. A large inhibition can cap convection for hours and then permit explosive development once removed. Reading both areas together gives a far better picture than either alone. Framing the question as which quantity the change acts upon makes the answer follow without calculation.

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