热带气象学报2018，Vol.34Issue(2)：250-259,10.DOI:10.16032/j.issn.1004-4965.2018.02.011
基于雷达反射率因子的降水性层状云中雨滴谱参数的反演方法与检验研究
A RETRIEVAL METHOD AND VERIFICATION OF PARAMETERS OF RAINDROP SIZE DISTRIBUTIONS OF PRECIPITATING STRATUS CLOUDS FROM RADAR REFLECTIVITY FACTORS
摘要
Abstract
Cloud particle phase and their median diameters are vital parameters.In this paper,a research of inversion is conducted on an algorithm for raindrop spectrum of stratus cloud based on radar reflectivity factor.The inversion algorithm and process are given.The radar reflectivity factor,observed in Yitong County in Jilin Province in northeastern China,is used in the inversion tests,and then verification and analysis are given.Then the mean diameters and number concentrations of raindrop can be calculated with the radar reflectivity to compare with the observations observed by Parsivel laser optical disdrometer in the same place.The result shows that the variation trend between the drop-size distribution calculated with the inversion algorithm and the observation is almost the same.The magnitude and value of mean diameters and number concentrations of raindrops are almost equal.Therefore the results above show that the proposed inversion method,which is used to retrieve microphysical parameters of precipitating stratus clouds on the basis of the plentiful echo intensity data from widely used weather radars,is feasible.关键词
大气探测/反演算法/降水性层状云/雷达反射率/雨滴谱参数Key words
atmospheric sounding/retrieval method/precipitating stratus/radar reflectivity factor/parameters of raindrop size distribution分类
天文与地球科学引用本文复制引用
周嘉健,肖辉,潘雯菁,王振会..基于雷达反射率因子的降水性层状云中雨滴谱参数的反演方法与检验研究[J].热带气象学报,2018,34(2):250-259,10.基金项目
国家自然科学基金(41275043、41575037) （41275043、41575037）
江苏高校优势学科建设工程资助项目(PAPD) （PAPD）
国家重点基础研究发展计划(973)项目(2014CB441403)共同资助 （973）
