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| Evaluation on data quality of X-band dual-polarization radar with large antenna |
| Wang Keqing1, Xu Fen2,3, Zhou Honggen4, Sun Zhengqi5, Kong Weiqi5 |
1. Jiangsu Climate Center,Nanjing 210041;
2. Nanjing Joint Institute for Atmospheric Sciences,Nanjing 210041;
3. Key Laboratory of Transportation Meteorology,CMA,Nanjing 210041;
4. Jiangsu Meteorological Observation Center,Nanjing 210041;
5. Nanjing NRIET Industrial Co.Ltd,Nanjing 210019 |
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Abstract This paper uses the standard deviation analysis method to evaluate the quality of radar data from X-band dual-polarization radar with large antenna in northern Jiangsu province.It finds that the reflectivity factor and differential reflectivity data from two X-band dual-polarization radars are comparatively reliable in Dafeng and Baoying.The number of interrelationship is more sensitive to attenuation and interference clutter,etc.,and the data fluctuates widely.In the process of hail weather observation,the standard deviation data of differential propagation phase fluctuates more than the observation data of other types of precipitation processes due to the large influence of hail on the scattering phase difference.Comparative observations of different bands of weather radar found that X-band weather radar played an encrypted coverage of low-altitude weather system observation,but the attenuation phenomenon is still obvious,the maximum echo intensity is about 10dBZ lower than that of S-band weather radar,and the attenuated storm monolith structure has some deformation.
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Received: 28 March 2022
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| [1] |
张培昌,魏鸣,黄兴友,等.双线偏振多普勒天气雷达探测原理与应用[M].北京:气象出版社,2018.
|
| [2] |
唐顺仙,吕达仁,何建新,等.天气雷达技术研究进展及其在我国天气探测中的应用[J].遥感技术与应用,2017,32(1):1-13.
|
| [3] |
杜牧云,刘黎平,胡志群,等.双线偏振多普勒雷达资料质量分析[J].气象学报,2013,71(1):146-158.
|
| [4] |
金永利,马建立,康玉霞,等.车载X波段雷达对人工消云减雨作业效果初步分析[J].气象,2008,34(S1):153-155,323.
|
| [5] |
徐芬,郑媛媛,孙康远.江苏龙卷时空分布及风暴形态特征[J].气象,2021,47(5):517-528.
|
| [6] |
张贵付.双偏振雷达气象学[M].北京:气象出版社,2019.
|
| [7] |
李思腾,仰美霖,李林,等.基于标准差分析法的X波段双偏振天气雷达资料质量评估[J].干旱气象,2019,37(3):467-476.
|
| [8] |
雷永恒,胡坚.湖南省天气雷达业务系统的设计与实现[J].中低纬山地气象,2020,44(4):77-83.
|
|
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2022, Vol. 39 
