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The bright band on a radar display marks

  • A.the level of maximum hail growth
  • B.the melting layer where snow becomes rain
  • C.the top of the convective updraught
  • D.the base of the cloud

Answer: B

Melting snowflakes are large and water coated but still falling slowly, so reflectivity peaks. The band is a reliable indicator of stratiform precipitation and is absent in convective cells. Its presence is used to classify the precipitation automatically.

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