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Which one of the following displays areas of precipitation?

  • A

    Satellite picture

  • B

    Radar picture

  • C

    Wind chart

  • D

    GAFOR

Refer to figures.
Airborne weather radar is designed for avoiding severe weather, not for penetrating it. It detects drops of precipitation (such as rain/snow/hail).

Weather detection is based on the reflectivity of water droplets. The weather echo appears on the Navigation Display (ND) with a color scale that goes from red (high reflectivity) to green (low reflectivity). The weather radar echo returns vary in intensity as a function of the droplet size, composition and quantity.

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