Optimization of the calibration procedure for the optoelectronic precipitation gauge
V.V. Kalchikhin, A.A. Kobzev, A.A. Tikhomirov, D.E. Filatov
Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: optical precipitation gauge, calibration, drop size, snowstorm parameter gauge
Abstract
The dependence of the optical precipitation gauge calibration results on the dimensions of the reference objects is analyzed. The ways to optimize the calibration procedure are suggested, including: reducing the number of calibration zones; use of calibration factors instead of correction parameters; additional calibration with balls with a diameter of 1 mm; use of the coefficients depending on the measured diameter for particles smaller than 2 mm. The conclusion is made about the effectiveness of the calibration procedure suggested for the optoelectronic devices designed to measure the size of small particles, for example, a snowstorm parameter gauge.
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