Ott Parsivel² Laser Present Weather Sensor

Overview The Ott Parsivel² is a modern laser disdrometer for comprehensive measurement of all precipitation types. The Parsivel² captures both the size and speed of falling particles, classifying them into one of 32 separate size and velocity classes. The raw data is used to calculate the type, amount, intensity and kinetic energy of the precipitation, the visibility in the precipitation, and the equivalent radar reflectivity Benefits Precise particles size measurements and uncertainty of rain intensity with +-5% according WMO guide line Distinction of type of present weather and calculation of the type, amount, intensity and kinetic energy of the precipitation, the visibility in the precipitation, and the equivalent radar reflectivity. Direct and simultaneous physical measuring principle of hydrometeors The Parsivel² captures both the size and speed of falling particles by applied laser extinction method. Unattended and maintenance free Automatic compensation of contamination on optics by dust and aerosal layers. Life time calibration and drift free measurement Automatic compensation of temperature induced error and laser fluctuation emittance. Classification of each single hydrometeors Classification into one of 32 separate size and velocity classes and particles distribution in numbers. Radiometric measuring principle at non-precipitation conditions