Micro Rain Radar
The MRR (Micro Rain Radar) is a vertically looking Doppler radar that measures the velocity spectrum of the radar reflectivity factor of precipitating particles at several altitude levels above it. Initially designed to measure raindrops, the size spectrum of the drops can be deduced from the velocity spectrum by means of theoretical velocity-diameter relations adapted to rain. From this size spectrum, other variables such as water content or rainfall intensity can be deduced.
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