Research on Quantitative Comparison and Observation Precision of Dual Polarization Phased Array Radar and Operational Radar

  • Weiran ZHANG ,
  • Chong WU ,
  • Liping LIU ,
  • Yu ZHANG ,
  • Xiaojun BAO ,
  • Hui HUANG
Expand
  • <sup>1.</sup>State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081,China;<sup>2.</sup>Guangzhou Meteorological Observatory,Guangzhou 5111430,Guangdong,China;<sup>3.</sup>Naruida Technology Ltd. ,Zhuhai 519080,Guangdong,China

Received date: 2020-03-30

  Online published: 2021-04-28

Abstract

The space-time resolution bottleneck of all-mechanical driven antenna weather radar is broken by phased array weather radar, which can provide faster and more detailed observation data.However, the parameters of the array antenna deteriorate when the scanning angle deviates from the normal direction, making the quantitative measurement of phased array radar difficult.At present, the dual-polarization phased array weather radar has been newly deployed in southern China.The quantitative comparison between phased array radar and local S-band operational radar in the same area was compared in this paper, and the bias magnitude of the reflectivity and differential reflectivity and its changing trend with scanning angle and observation time was evaluated.The results showed that the error of the reflectivity of the phased array radar was about 0.82 dB, while the bias of the differential reflectivity was as high as 1.04 dB.And the biases also have certain fluctuations between different elevation angles and different times.Therefore, this paper proposes a correction scheme based on real-time data of S-band radar, which can solve the calibration problem of dual-polarization phased array weather radar to a certain extent, and provides a guarantee for the business application of phased array radar.

Cite this article

Weiran ZHANG , Chong WU , Liping LIU , Yu ZHANG , Xiaojun BAO , Hui HUANG . Research on Quantitative Comparison and Observation Precision of Dual Polarization Phased Array Radar and Operational Radar[J]. Plateau Meteorology, 2021 , 40(2) : 424 -435 . DOI: 10.7522/j.issn.1000-0534.2020.00056

References

[1]Bluestein H B, French M M, Popstefanija I, et al, 2010.A mobile Phased-Array Doppler Radar for the study of severe convective storms[J].Bulletin of the American Meteorological Society, 91(5): 579-600.
[2]Balakrishnan N, Zrni? D S, 2010.Estimation of rain and hail rates in mixed-phase precipitation[J].Journal of the Atmospheric Sciences, 47(5): 565-583.
[3]Ryzhkov A V, Zrni? D S, 1998.Discrimination between rain and snow with a polarimetric radar[J].Journal of Applied Meteorology and Climatology, 37(10): 1228-1240.
[4]Ryzhkov A V, Giangrande S E, Melnikov V M, et al, 2005.Calibration issues of Dual-Polarization Radar measurements[J].Journal of Atmospheric & Oceanic Technology, 22(8): 1138-1155.
[5]Testud J, Le Bouar E, Obligis E, et al, 2000.The rain profiling algorithm applied to polarimetric weather radar[J].Journal of Atmospheric & Oceanic Technology, 17(3): 332-356.
[6]Ulbrich C W, Atlas D, 2016.Assessment of the contribution of differential polarization to improved rainfall measurements[J].Radio Science, 19(1): 49-57.
[7]Weadon M, Heinselman P, Forsyth D, et al, 2009.Multifunction phased array radar[J].Bulletin of the American Meteorological Society, 90(3): 461-466.
[8]Zrnic D S, Kimpel J F, Forsyth D E, et al, 2007.Agile-Beam Phased Array Radar for weather observations[J].Bulletin of the American Meteorological Society, 88(11): 1753-1766.
[9]曹俊武, 胡志群, 陈晓, 等, 2011.影响双线偏振雷达相位探测精度的分析[J].高原气象, 30(3): 817-822.
[10]杜牧云, 刘黎平, 胡志群, 等, 2013.双线偏振多普勒雷达资料质量分析[J].气象学报, 71(1): 146-158.
[11]胡东明, 张羽, 傅佩玲, 等, 2019.广州S波段双线偏振天气雷达双通道一致性测试及分析[J].气象科技, 47(3): 373-379.
[12]刘俊, 黄兴友, 何雨芩, 等, 2015.X波段相控阵气象雷达回波数据的对比分析[J].高原气象, 34(4): 1167-1176.DOI: 10.7522/j.issn.1000-0534.2014.00043.
[13]刘黎平, 吴翀, 汪旭东, 等, 2015.X波段一维扫描有源相控阵天气雷达测试定标方法[J].应用气象学报, 26(2): 129-140.
[14]刘黎平, 吴林林, 吴翀, 等, 2014.X波段相控阵天气雷达对流过程观测外场试验及初步结果分析[J].大气科学, 38(6): 1079-1094.
[15]王超, 吴翀, 刘黎平, 2019.X波段双线偏振雷达数据质量分析及控制方法[J].高原气象, 38(3): 636-649.DOI: 10.7522/j.issn. 1000-0534.2018.00096.
[16]吴翀, 刘黎平, 汪旭东, 等, 2014.相控阵雷达扫描方式对回波强度测量的影响[J].应用气象学报, 25(4): 406-414.
[17]吴翀, 刘黎平, 张志强, 2014.S波段相控阵天气雷达与新一代多普勒天气雷达定量对比方法及其初步应用[J].气象学报, 72(2): 390-401.
[18]魏庆, 胡志群, 刘黎平, 等, 2016.C波段偏振雷达数据预处理及在降水估计中的应用[J].高原气象, 35(1): 231-243.DOI: 10.7522/j.issn.1000-0534.2014.00131.
[19]杨金红, 高玉春, 程明虎, 等, 2009.相控阵天气雷达波束特性[J].应用气象学报, 20(1): 119-123.
[20]张志强, 刘黎平, 2011a.S波段相控阵天气雷达与新一代天气雷达探测云回波强度及结构误差的模拟分析[J].气象学报, 69(4): 729-735.
[21]张志强, 刘黎平, 2011b.相控阵技术在天气雷达中的初步应用[J].高原气象, 30(4): 1102-1107.
[22]张志强, 2011a.相控阵天气雷达强度探测与评估方法研究[D].北京: 中国气象科学研究院.
[23]张培昌, 1988.雷达气象学[M].北京: 气象出版社, 53-55.
Outlines

/