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(06):635-641.[doi:10.16836/j.cnki.jcuit.2022.06.004]
X波段双偏振天气雷达组网反射率因子订正研究
- Title:
- Study on Reflectivity Factor Correction of X-band Dual Polarization Weather Radar Network
- 文章编号:
- 2096-1618(2022)06-0635-07
- 关键词:
- X波段双偏振天气雷达; 组网拼图; 衰减订正
- 分类号:
- TN959.4
- 文献标志码:
- A
- 摘要:
- X波段双偏振天气雷达具有造价低、探测精度高等特点,能够在业务应用上与常规天气雷达形成互补作用,但由于其波长较短,电磁波经过雨区时会发生衰减。因此,对组网前的单部雷达反射率因子进行适当订正处理,再依据S波段天气雷达波长较长、电磁波经过雨区时衰减更小的特点设计算法对组网区域的反射率因子进行协同对比订正。实验结果表明,设计算法能够对组网反射率因子进行有效订正。
- Abstract:
- X-band dual polarization weather radar is characteristic of low cost and high detection accuracy,which can make up for the shortcomings of conventional weather radar in business application,but because of its short wavelength,the electromagnetic wave will attenuate when it passes through the rain area. Therefore,this paper first corrects the reflectivity factor of a single radar before networking,and then designs an algorithm to compare and correct the reflectivity factor of the netted area.In order to analyze the effect of the algorithm,the data ofa S-band weather radar which has a longer wavelength and less attenuation when passing through a rainy area is selected for comparison with the results of the network correction.The results show that the algorithm designed in this paper can correct the reflectivity factor effectively.
参考文献/References:
[1] 何宇翔,吕达仁,肖辉,等.X波段双线极化雷达反射率的衰减订正[J].大气科学,2009,33(5):11.
[2] 吴仁彪,韩雁飞,李海,等.气象雷达衰减订正方法的研究现状与展望[J].中国民航大学学报,2012,30(3):22-27+31.
[3] Testud,Jacques,Le,et al.The Rain Profiling Algorithm Applied to Polarimetric Weather Radar[J].J.Atmos.Oceanic Technol,2000.
[4] 李宗飞,肖辉,冯亮,等.X波段双偏振天气雷达衰减订正方法及效果检验[J].气象科技,2019,47(5):731-739.
[5] Bringi V N,Keenan.Correcting C-Band Radar Reflectivity and Differential Reflectivity Data for Rain Attenuation:A Self-Consistent Method With Constraints[J].IEEE Transactions on Geoscience & Remote Sensing,2001.
[6] 邹海波,单九生,邓诗茹.多普勒雷达资料的网格化研究[J].气象与减灾研究,2014,37(2):23-30.
[7] 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(5):647-657.
[8] 江源,刘黎平,庄薇.多普勒天气雷达地物回波特征及其识别方法改进[J].应用气象学报,2009,20(2):203-213.
[9] Lakshmanan V,Hondl K,Stumpf G,et al.Quality control of weather radar data using texture features and a neural network[C].Preprints,31st Radar Conference,2003:522-525.
[10] Zhang J,Wang S,Clarke B.WSR-88D reflectivity quality control using horizontal and vertical reflectivity structure, paper presented at Preprints,11th Conf[C].11th conference Aviation,Range,and Aerospace Meteor.,Amer.Meteor.Soc.,Hyannis,Mass,2004.
[11] 杨川.新一代天气雷达资料质量分析和处理方法研究[D].成都:成都信息工程学院,2012.
相似文献/References:
[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.[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,(06):482.[doi:10.16836/j.cnki.jcuit.2019.05.007]
备注/Memo
收稿日期:2022-06-17
基金项目:国家自然科学基金资助项目(U1733103)