Determination of optoelectronic precipitation gauge calibration characteristics
A.A. Azbukin, V.V. Kalchikhin, A.A. Kobzev, V.A. Korolkov, A.A. Tikhomirov
Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, 634055, Tomsk, 10/3, Academichesky ave
Keywords: optical precipitation gauge, calibration, drop size
Abstract
The main characteristics of the optoelectronic dual-channel precipitation gauge optical channels are presented, as well as the results of laboratory experiments and preliminary field tests. The procedure for determining the calibration characteristics using 5 mm steel balls is proposed, it allows minimizing the error due to imperfections in the device optical system. The results of fluid volume measurements show that the precipitation measurement error in the laboratory does not exceed 5%. Preliminary results of field measurements are presented in the form of precipitation particle size distributions, intensity changes, and calculated precipitation sums.
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