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Which practical use does a plotted sounding have in aviation forecasting?

  • A.Identifying icing and turbulence layers
  • B.Determining the runway in use at the destination airfield, which depends upon the surface wind direction there
  • C.Calculating fuel consumption
  • D.Predicting the exact time at which a frontal system will arrive over the airfield during the flight itself

Answer: A

Supercooled saturated layers between zero and about minus fifteen degrees indicate an icing risk, and layers of strong shear with low Richardson number indicate turbulence. Both are read directly from the plotted profile. Surface wind and frontal timing come from other products, and fuel planning uses forecast winds aloft rather than the thermodynamic structure. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision.

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