Study on quantitative precipitation estimation technology of Cband and Xband weather radar in Ningxia
Xue Zhengzheng1,2,3, Liu Xiaolei1,2,3, Gao Yingyu1,2, Yang Chenfang1,2,3
1. Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions,Yinchuan 750002; 2. Key Laboratory of Meteorological Disaster Preventing and Reducing of Ningxia,Yinchuan 750002; 3. NingxiaMeteorologicical Data Center,Yinchuan 750002
Abstract：Based on the base data from three Cband and two Xband weather radars in Ningxia,combined with highprecision topographic data and ground rain gauge observations,this paper proposes a quantitative precipitation estimation (QPE) networking algorithm using multiband weather radars.The networking fusion product was evaluated using data from five precipitation cases in 2023,benchmarked against ground rain gauge records and operational QPE products.The results indicate that the radarbased networking fusion product exhibits good consistency and low dispersion relative to hourly ground rain gauge data;specifically,the root mean square error remained stable below 2.45,and the mean absolute error stayed below 0.24 across different precipitation cases.In conclusion,the proposed algorithm demonstrates superior stability and accuracy in precipitation estimation.
薛筝筝, 刘晓磊, 高英育, 杨晨芳. 宁夏C波段和X波段天气雷达定量降水估测技术研究[J]. 气象水文海洋仪器, 2026, 43(5): 1-4.
Xue Zhengzheng, Liu Xiaolei, Gao Yingyu, Yang Chenfang. Study on quantitative precipitation estimation technology of Cband and Xband weather radar in Ningxia. Meteorological Hydrological and Marine Instrument, 2026, 43(5): 1-4.
2026, Vol. 43 
