Analysis on Data Quality of Ganzhou New Generation Weather Radar
Based on the radar data of Ganzhou,Ji'an in Jiangxi Province and Shaoguan in Guangdong Province,the CAPPI algorithm was used to comparatively analyze the 1 km and 2 km height reflectivity of radars in Ganzhou,Ji'an and Shaoguan.The results show that the reflectivity change trends detected by Ganzhou radar and Ji'an and Shaoguan radar during heavy(weak)precipitation processes are consistent,but the reflectivity values are slightly different.The reflectivity of Ganzhou radar is slightly higher than that of Ji'an and Shaoguan.Radar reflectivity;for individual cases,the reflectivity of Ganzhou radar is 0~5 dBZ higher than that of Ji'an radar at an altitude of 1 km,and the reflectivity of Ganzhou radar is 0~3 dBZ higher than that of Ji'an radar at an altitude of 2 km;Ganzhou radar reflectivity The reflectivity detected during weak precipitation is basically consistent with the detection results of Shaoguan radar,but the reflectivity detected during heavy precipitation is 0~5 dBZ higher than that of Shaoguan radar.