PDF下载 分享
[1]郭春辉,袁 微,王 旭,等.肇庆X波段双偏振天气雷达资料质量分析[J].成都信息工程大学学报,2019,(05):482-486.[doi:10.16836/j.cnki.jcuit.2019.05.007]
　GUO Chunhui,YUAN Wei,WANG Xu,et al.Quality Analysis of Zhaoqing X-band Dual-polarization Weather Radar Data[J].Journal of Chengdu University of Information Technology,2019,(05):482-486.[doi:10.16836/j.cnki.jcuit.2019.05.007]
点击复制

肇庆X波段双偏振天气雷达资料质量分析

成都信息工程大学学报[ISSN:1006-6977/CN:61-1281/TN] 卷: 期数: 2019年05期 页码: 482-486 栏目: 电子信息科学与技术 出版日期: 2019-11-25
Title:
Quality Analysis of Zhaoqing X-band Dual-polarization Weather Radar Data
文章编号:
2096-1618(2019)05-0482-05
作者:
郭春辉1; 2;  袁 微2;  王 旭1;  白爱娟1;  周义昌2
(1.成都信息工程大学,四川 成都 610225; 2.肇庆市气象局,广东 肇庆 526000)
Author(s):
GUO Chunhui1; 2;  YUAN Wei2;  WANG Xu1;  BAI Aijuan1;  ZHOU Yichang2
(1.Chengdu University of Information Technology, Chengdu 610225,China; 2.Zhaoqing Meteorlogical Bureau,Zhaoqing 526000,China)
关键词:
X波段双偏振天气雷达;  数据质量;  相关系数;  差分反射率因子;  差分传播相移
Keywords:
X-band dual-polarization weather radar;  data quality;  correlation coefficient;  differential reflectivity factor;  differential propagation phase shift
分类号:
TN957
DOI:
10.16836/j.cnki.jcuit.2019.05.007
文献标志码:
A
摘要:
以肇庆X波段全固态双偏振天气雷达观测的层状云降水过程资料为例,与肇庆SA单偏振天气雷达资料进行对比,分析反射率的数据质量,采用统计方法分析偏振量中的差分反射率ZDR、相关系数CC、差分传播相移ΦDP及差分传播相移率KDP的数据质量。研究发现:X波段双偏振雷达探测层状云降水回波分布与SA雷达探测回波分布相近,回波强度略高于SA雷达。当信噪比SNR<25 dB时,CC受噪声影响较大,数据不可信; ZDR较理论值偏大0.4 dB; ΦDP在7 km以内抖动较大,数据不可用,7 km以外依然存在少量的抖动; KDP大部分稳定在-1～1,并伴有一定的抖动,难以适用于分析弱降水的特性。
Abstract:
Based on the observation data of Zhaoqing X-band dual-polarization weather radar for precipitation processes, comparing with the Zhaoqing SA single-polarization weather radar data, analyzing the data quality of reflectivity, Statistical methods were used to analyze the data quality of differential reflectance ZDR, correlation coefficient CC, differential propagation phase shift ΦDP, and differential propagation phase shift rate KDP in the polarization. The research shows that the layered cloud precipitation echo distribution which the X-band dual-polarized radar detects is similar to the SA radar and the echo intensity is slightly higher than the SA radar. When the signal-to-noise ratio SNR<25 dB, the CC is greatly affected by noise and the data is not reliable; ZDR is 0.4 dB larger than theoretical value 0; ΦDP has large jitter within 7 km, data is not available, and there is still a small amount of jitter outside 7 km; Most of the KDP is stable between -1 and 1,with some jitter, which is difficult to apply to the analysis of weak precipitation characteristics.

参考文献/References:

[1] 郭春辉,罗聪,雷卫延,等.基于图像合成修改雷达产品背景信息的实现[J].广东气象,2018,40(1):75-78.
[2] 伍魏,周筠珺,李晓敏,等.X波段双偏振雷达的质量控制方法对比研究[J].成都信息工程学院学报,2017,32(1):19-26.
[3] 雷亚会.X波段双偏振雷达反射率的衰减订正[J].成都信息工程学院学报,2014,29(6):586-589.
[4] 杨立洪,刘小燕,陈玉华.双偏振雷达相关系数的产品分析[J].广东气象,2017,39(3):69-72.
[5] 王晗,史朝,滕玉鹏.X波段双偏振雷达反射率的不同衰减订正法对比分析[J].成都信息工程学院学报,2016,31(4):363-365.
[6] Gourley J,Kaney B,Maddox R.Evaluation the calibration of radars:A software approach[C].31th Conference on Radar meteorology,2003:459-462.
[7] 杜牧云,刘黎平,胡志群,等.C波段双线偏振雷达资料质量分析[J].暴雨灾害,2011,30(4):330-334.
[8] 吕博,杨士恩,王俊,等.X波段双线偏振多普勒雷达资料质量评估[J].干旱气象,2016,34(6):1055-1062.
[9] 徐坤,谢明元,刘黎平,等.C、X波段双线偏振多普勒雷达资料质量分析[J].成都信息工程学院学报,2009,24(4):329-332.
[10] 李兆明,诸红星,漆加荣.X波段固态双极化天气雷达的数据处理及图像拼接[J].广东气象,2017,39(3):77-80.
[11] 郭春辉,袁微,雷卫延,等.肇庆天气雷达径向遮挡订正系统设计[J].气象水文海洋仪器,2018,35(1):57-60.
[12] 王红艳,刘黎平,王改利,等.多普勒天气雷达三维数字组网系统开发及应用[J].应用气象学报,2009,20(2):214-215.
[13] 肖艳姣,刘黎平.新一代天气雷达网资料的三维格点化及拼图方法研究[J].气象学报,2006,64(5):647-648.

相似文献/References:

[1]高 霞,周 晔,周淑玥,等.X波段双偏振天气雷达组网反射率因子订正研究[J].成都信息工程大学学报,2022,37(06):635.[doi:10.16836/j.cnki.jcuit.2022.06.004]
　GAO Xia,ZHOU Ye,ZHOU Shuyue,et al.Study on Reflectivity Factor Correction of X-band Dual Polarization Weather Radar Network[J].Journal of Chengdu University of Information Technology,2022,37(05):635.[doi:10.16836/j.cnki.jcuit.2022.06.004]

备注/Memo

收稿日期:2019-07-01

更新日期/Last Update: 2019-11-25