Abstract
Using a newly deviced laser Doppler velocimeter, measurements of falling velocity of large flakes of snow, powdery snow flakes, sleet and rain in Nagaoka city were made. Measured falling velocities are almost similar to the values reported by other investigators. This method is superior in real time recording to the conventional method using stroboscopic photography. Comparing with the ultrasonic Doppler method, this method is capable of measuring the falling velocity of individual particle because the sampling volume is smaller than the particle size.
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