摘要
文章利用2023—2024年X波段双偏振雷达及云地闪地面观测资料,对松潘县域内的所有雷暴过程中云地闪、组合反射率因子、回波顶、垂直累积液态水含量、最强回波所在仰角进行分析。结果表明:松潘地区的雷电预警指标组合反射率因子≥30 dBZ、回波顶高≥9 km、垂直累积液态水含量≥1 kg/m^(2),最强回波所在仰角为2.4°,相对于初闪的平均时间提前量为30 min。
The article uses X-band dual polarization radar and cloud ground flash ground observation data from 2023 to 2024 to analyze the cloud ground flash,combined reflectivity factor,echo top,vertical cumulative liquid water content,and elevation angle of the strongest echo during all thunderstorm processes in Songpan County.The results show that the combination reflectivity factor of lightning warning indicators in Songpan area is≥30 dBZ,the echo top height is≥9 km,and the vertical cumulative liquid water content is≥1 kg/m^(2),and the strongest echo is located at an elevation angle of 2.4°.The average time advance relative to the initial flash is 30 minutes.
作者
王玲
马雄
曾钦
Wang Ling;Ma Xiong;Zeng Qin(Aba Prefecture Meteorological Bureau,Aba Prefecture 624000;Heishui County Meteorological Bureau,Heishui 623500)
出处
《气象水文海洋仪器》
2025年第2期47-50,共4页
Meteorological,Hydrological and Marine Instruments
基金
阿坝藏族羌族自治州气象局项目“松潘X波段雷达在灾害性短临预警中的应用”(2024-5)资助。
关键词
X波段双偏振雷达
云地闪数据
雷电预警
指标
X-band dual polarization radar
cloud ground flash data
lightning warning
indicators
