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Assertion (A): Precipitation is among the least skilful fields in a numerical weather forecast.
Reason (R): It depends on parameterised microphysics rather than on resolved dynamics.

  • A.A is true but R is false
  • B.A is false but R is true
  • C.Both A and R are true, and R is the correct explanation of A
  • D.Both A and R are true, but R is not the correct explanation of A

Answer: C

Both are true and the reason gives the cause, and the timing and placement of showers are particularly uncertain. Larger scale fields such as pressure are forecast far more skilfully. Resolved dynamics behaves far better than parameterisation.

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