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Which display accompanies the thermodynamic curves on an operational sounding?

  • A.The pressure tendency measured at the surface station during the three hours preceding the release of the balloon
  • B.The cloud cover
  • C.A time series of the temperature observed at the station during the twenty four hours before the ascent began
  • D.Wind barbs at each reporting level

Answer: D

Wind barbs are plotted alongside the temperature and dew point curves, and their variation with height gives the shear that determines storm organisation. A hodograph is often drawn as an inset from the same data. Reading the thermodynamic and kinematic information together is what allows storm type as well as storm intensity to be anticipated.

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