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Ground based seeding generators are most useful in

  • A.orographic situations where upslope flow carries the agent aloft
  • B.isolated convective storms developing over entirely flat terrain inland
  • C.high cirrus lying far above the boundary layer
  • D.clear skies with no cloud whatever present at all

Answer: A

The terrain provides the vertical transport the generator itself cannot supply. Over flat ground the agent tends to remain trapped in the boundary layer and never reaches the supercooled region. Flat terrain provides no mechanism to lift the agent.

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