摘要
应用中国气象局天衡天衍系统中的雷达回波产品、垂直积分液态水含量、等高平面显示、雷电分布、雷暴聚类、雷电密度、雷电频次时序和雨滴谱等资料,对2024-04-02乐平一次冰雹大风天气过程进行分析,结果表明:乐平冰雹回波强度≥60 dBZ,垂直积分液态水含量达70 kg/m^(2);冰雹发生时有大量闪电,雷电密度达0.5个/km^(2)左右;天衍系统预测冰雹概率大,且从冰雹云的垂直结构看,60 dBZ强回波伸展高度达7 km,是冰雹的典型特征;雨滴谱的结构上,乐平冰雹对流云中的粒子直径最大可达100 mm以上,但大粒子占比少、速度慢。希望研究结果能为乐平冰雹大风天气的监测预警提供参考依据。
Using radar echo products,vertically integrated liquid water content,contour plane display,lightning distribution,thunderstorm clustering,lightning density,lightning frequency time series,and raindrop spectrum data from the Tianheng Tianyan system of the China Meteorological Administration,an analysis was conducted on a hail and strong wind weather process in Leping on April 2,2024.The results showed that the hail echo in Leping was≥60 dBZ,and the vertically integrated liquid water content reached 70 kg/m^(2).When hail occurs,there are a large number of lightning strikes with a lightning density of about 0.5 lightning strikes per square kilometer.The Tianyan system predicts a high probability of hail,and from the vertical structure of hail clouds,the 60 dBZ strong echo extends up to a height of 7 km,which is a typical feature of hail.In terms of the structure of the raindrop spectrum,the maximum particle diameter in the convective cloud of Leping hail can reach over 100 mm,but the proportion of large particles is small and the velocity is slow.It is hoped that the research results can provide reference for monitoring and warning of hail and strong wind weather in Leping.
作者
盛梦婷
Sheng Mengting(Jiangxi Leping Meteorological Observatory,Leping 333300)
出处
《气象水文海洋仪器》
2025年第1期56-59,共4页
Meteorological,Hydrological and Marine Instruments
基金
中国科学院战略性先导科技专项(A类XDA19040202)
国家自然科学基金项目(41975001)资助。
关键词
冰雹大风
带状强回波
闪电
雨滴谱
hail and strong wind
banded strong echo
lightning
raindrop spectrum
