The calibration of meteorological radars and the forecasting of disasters caused by high intensity rainfall, together with the assessment of the erosive effect of rainfall require local and seasonal knowledge of the rate and intensity of rainfall. For this it is necessary to evaluate the speed and average size of the raindrops. The results obtained for the precipitations of the rainy period (August-September) in the city of Valencia (Venezuela) are presented, carried out by means of an infrared dysdrometer.
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