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Discussion

Match each precipitation type with its typical characteristics.
List I
A. Stratiform
B. Convective
C. Drizzle
D. Showers
List II
1. very small drops from shallow layer cloud
2. widespread, steady, with a bright band
3. brief and intermittent from cumuliform cloud
4. localised, intense, with strong vertical motion

  • A.A-2, B-4, C-3, D-1
  • B.A-3, B-1, C-4, D-2
  • C.A-2, B-4, C-1, D-3
  • D.A-4, B-2, C-1, D-3

Answer: C

The distinction is more than descriptive, since the two regimes differ in drop size distribution and in the coefficients used to convert radar reflectivity into a rainfall rate. Classifying the echo correctly is the first step in estimation.

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