Evaluation of Radar Detection Performance and Reflectivity Consistency of SC Doppler Weather Radar
Lai Chen
Cheng Changyu
Li Zhibo
Yan Jing
Gao Lan
Abstract：This article evaluates the detection performance of the Ganzhou SC Doppler weather radar in Jiangxi Province before and after upgrading to a dual polarization radar,and,based on previous re-search,proposes a clear and efficient algorithm for evaluating the reflectivity consistency of the two ra-dars.The results show that after completing the upgrade of the Ganzhou radar,the range resolution is in-creased from 1000 m to 250 m,and the minimum measurable echo intensity detected at 50 km is in-creased from-7 dBZ to-10 dBZ,indicating its capability of detecting in clear sky.After the Ganzhou radar is updated,it is found that under both light and heavy precipitation conditions,the reflectivity changes detected by the radars in Ganzhou,Ji'an,and Shaoguan are basically consistent,but the reflec-tivity values can be influenced by distance and mountain ranges.After eliminating the influence of mountain ranges,in the overlapping observation area,the correlation coefficient of reflectivity factors between Ganzhou and Ji'an radars is 0.93,and the correlation coefficient of Ganzhou radar with that of Shaoguan radar is 0.96.
Keywords：reflectivity consistencylight precipitationheavy precipitation
Publication Date：2025-11-30
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：10( 64-73 )