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《Meteorology and Disaster Reduction Research》 2018-02
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Comparative Analysis on Precipitation Measurement among Precipitation Micro-physical Characteristics Sensor,Laser Raindrop Spectrograph and Gauge

Hu Yuntao;Liu Xichuan;Gao Taichang;Xu Pingping;Lyu Miao;Xichang Satellite Launch Center;College of Meteorology and Oceanography,National University of Defense Technology;  
The Precipitation Micro-physical Characteristics Sensor(PMCS),Laser Raindrop Spectrograph(OTT),and Gauge were used for the comparative precipitation experiment in Nanjing area,in order to evaluate the performance of PMCS.Based on the precipitation intensity and accumulate precipitation,the differences between PMCS and OTT were discussed.Results showed that the precipitation intensity and accumulate precipitation measured by PMCS were less than that by OTT,but similar with that by Gauge,and the correlation coefficients of precipitation intensity among three instruments were larger than0.96.The spectral mean,spectral variance,and radar echo intensity of PMCS were smaller than that of OTT,but the number density was on the contrary,and the trend of spectral parameters of PMCS were in good agreement with that of OTT.Theraindrop size spectrum distribution of PMCS was consistent with that of OTT under the condition of same rain intensity,but the raindrops at large scale measured by PMCS were less than OTT.The raindrop measurement capability of PMCS and OTT was enhanced with the increasing of precipitation intensity,and weakened after reaching the peak.
【Fund】: 国家自然科学基金项目(编号:41327003)
【CateGory Index】: P426.6
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