巴中CINRAD/SAD双偏振天气雷达数据质量评估

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Abstract In order to analyze the data quality of CINRAD/SAD new generation weather radar in Bazhong,this paper analyzes the mean and standard deviation of ground echo intensity of Bazhong radar base data from January to December in 2022,the frequency of same frequency electromagnetic interference echo and the standard deviation distribution of horizontal polarization reflectivity factor,differential reflectivity,differential phase shift and correlation coefficient by standard deviation analysis.The base data quality results of Bazhong radar are obtained.The quality stability of Bazhong radar data is high,and the mean and standard deviation of ground echo intensity change is little.There are many cases of co-frequency electromagnetic interference in Bazhong radar.In 2022,the minimum frequency of interference is May and the maximum is September.The horizontal polarization reflectance factor and differential phase shift of Bazhong radar have great fluctuation,and the quality of the differential reflectance and phase relation data is better.

Key words： dual polarization radar data quality standard deviation

Received: 20 January 2023

ZTFLH:

P412.25

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	Articles by authors
	Li Liang
	Xie Xiaolin
	Hu Di
	Liu Rui
	Luo Yu'ang
	Li Xiang

Cite this article:

Li Liang,Xie Xiaolin,Hu Di等. Evaluation on data quality of CINRAD /SAD dual polarization radar in Bazhong[J]. Meteorological Hydrological and Marine Instrument, 2023, 40(4): 98-102.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2023/V40/I4/98

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