Precipitation Inversion and Error Correction of Laser Raindrop Monitor

Abstract

Abstract: It is obtained the relation functions between particle diameter, terminal velocity and drop size distribution based on the data of particle diameter, terminal velocity and particle number detected by laser raindrop monitor. The rainfall intensity is calculated and compared with meteorological data to build error functions. According to measurement error, a precipitation inversion algorithm is developed to calibrate rainfall intensity and amount of precipitation, resulting in reducing 10% error of corrected precipitation amount. At last, precipitation type is distinguished by calculated relative data.

Key words: laser raindrop monitor, drop size distribution, rainfall intensity, precipitation inversion, curve

MIAO Shao-bao, LU Yi-huai, GUI Hua-qiao, Cheng Yin, TIAN Yong-zhi. Precipitation Inversion and Error Correction of Laser Raindrop Monitor[J]. Journal of Atmospheric and Environmental Optics, 2011, 6(6): 423-431.

References

[1] Pu Jiangping, Zhao Guoqiang, Cai Dingjun, et al. Parsivel precipitation particle spectrometer and application in meteorological realm [J]. Meteorological and Environmental Sciences, 2007, 30(2): 3-8(in Chinese). 濮江平，赵国强，蔡定军，等. Parsivel激光降水粒子谱仪及其在气象领域的应用 [J]. 气象与环境科学, 2007, 30(2): 3-8.
[2] Zhang Peichang, Du Bingyu, Dai Tiepi. Radar Meteorology [M]. Beijing: China Meteorological Press, 2001: 177-217(in Chinese). 张培昌，杜秉玉，戴铁丕. 雷达气象学 [M]. 北京: 气象出版社, 2001: 177-217.
[3] Li Weimin, Ao Faliang, Yu Shengyun. Study of forward scattering effections on laser transformation in raindrop [J]. Photon Technology, 2006, (4): 237-240(in Chinese). 栗伟珉，敖发良，于胜云. 雨滴前向散射对光传输影响的研究 [J]. 光子技术, 2006, (4): 237-240.
[4] Thies Clima. Instruction for Use. Laser Precipitation Monitor [R]. 5.4110.xx.x00. V2.4x STD. 021341/08/07.
[5] Zhou Xiuji, Tao Shanchang, Yao Keya. High Atmospheric Physics (Volume One)
[M]. Beijing: China Meteorological Press, 1991: 347-655(in Chinese). 周秀骥, 陶善昌, 姚克亚. 高等大气物理学（上册）[M]. 北京: 气象出版社, 1991: 347-655.
[6] Zheng Jiaoheng, Chen Baojun. Comparative Study of exponential and Gamma functional fits to observed raindrop size distribution [J]. Scientia Meteorologica Sinica, 2007, 27(1): 17-25(in Chinese). 郑娇恒, 陈宝君. 雨滴谱分布函数的选择: M-P和Gamma分布的对比研究[J]. 气象科学, 2007, 27(1): 17-25.
[7] Zhang Hongyan. Laboratory Test of An Instrument for Measuring the Rain DSD and Analysis of DISDROMETER DSD Measurement Data [D]. Beijing: Institute of Atmospheric Physics, 2006 (in Chinese). 刘红艳. 雨滴谱仪器的设计与雨滴谱资料的分析 [D]. 北京:大气物理研究所, 2006.
[8] Do Khac K, Zanghi F, Tabary P. Radar-disdrometer comparison [C]. Proceedings of ERAD, 2004: 272-277.
[9] Loffler-Mang M, Joss J. An optical disdrometer for measuring size and velocity of hydrometeors [J]. Journal of Atmospheric and Oceanic Technology, 2000, 17(2): 130-139.
[10] Eillis R A, Standford A P, Jones G E, et al. New laser technology to determine present weather parameters [J]. Meas. Sci. Technol., 2006, 17(7): 1715-1722.
[11] Li Dejun, Yang Jianchao, Cai Dingjun, et al. Raindrop size distribution and the relationship between rainfall rate and reflectivity
[J]. Meteorology and Disaster Reduction Research, 2009, 32(4): 39-44(in Chinese). 李德俊，杨剑超，蔡定军，等. 降雨型滴谱与反射率因子及雨强关系研究[J]. 气象与减灾研究. 2009, 32(4): 39-44.
[12] King B A, Winward T W, Bjorneberg D L. Laser precipitation monitor for measurement of drop size and velocity of moving spray-plate sprinklers [J]. American Society of Agricultural and Biological Engineer, 2010, 26(2): 263-271.