肇庆X波段双偏振天气雷达降水估测研究  

Study on precipitation estimation of Zhaoqing X-band dual polarization weather radar

作　　者：袁微 郭春辉 谭丹凤 吴礼凤 Yuan Wei;Guo Chunhui;Tan Danfeng;Wu Lifeng(Zhaoqing Meteorlogical Bureau,Zhaoqing 526060)

机构地区：[1]肇庆市气象局,肇庆526060

出　　处：《气象水文海洋仪器》2022年第3期58-61,64,共5页Meteorological,Hydrological and Marine Instruments

基　　金：广东省气象局科学技术研究项目(GRMC2019M46);肇庆市气象局科学技术研究项目(201812)资助。

摘　　要：文章基于肇庆X波段双偏振天气雷达数据和自动气象站雨量数据对2019年的多次降水过程进行分析。文章首先对资料进行选取和处理,使用滤波器和衰减订正方法对数据质量控制,然后对比分析不同模型降水估测差异,最后对个例降水过程进行分析,结果表明:提高降水估测的准确性,需要合理的质量控制;改进K_(DP)的计算方法对雷达估测降水的研究具有重要意义。Based on Zhaoqing X-band dual polarization weather radar data and rainfall data of automatic weather station,this paper analyzes the multiple precipitation processes in 2019.Firstly,the data are selected and processed,and the quality of the data is controlled by filter and attenuation correction.Then,the difference of precipitation estimation between different models is compared and analyzed.Finally,the precipitation process of a case is analyzed.The results show that reasonable quality control is needed to improve the accuracy of precipitation estimation.It is of great significance to improve the calculation method of K_(DP)for precipitation estimation by radar.

关 键 词：大气探测 X波段双偏振天气雷达 自动站雨量数据 降水估测 

分 类 号：P415.2[天文地球—大气科学及气象学]