江西三次冰雹过程雷电分布与雷达回波演变特征分析

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Abstract In order to to further understand the radar echo systems responsible for hail formation in Jiangxi and the correlation between these echo systems and lightning distribution,radar mosaic data and lightning distribution data were utilized to analyze three hail weather processes that occurred in Jiangxi in April 2025.The results indicate that the evolution of mesoscale cloud clusters into cold front echo bands leads to significant lightning activity,especially in thunderstorm echo cells with CR (Convectional Readiness) values between 50-55 dBZ and VIL values greater than or equal to 30 kg/m².The key characteristic of the evolution from southwest trough short-band echoes to cold front echo bands is the emergence of northwest-to-southeast oriented short-band echoes with a relatively loose structure,moving northeastward at a slow speed,and resulting in uneven precipitation distribution.After evolving into cold front echo bands,the structure becomes tighter,lightning becomes more dense,and hail,thunderstorm winds,and short-duration heavy precipitation occur in supercells on the echo bands.The 850 hPa shear line dynamically triggers the generation of multiple parallel or intermittent thunderstorm echo bands with CR values greater than or equal to 55 dBZ,accompanied by supercells with CR values greater than or equal to 60 dBZ and VIL values between 40 kg/m² and up to 70 kg/m².The aforementioned research findings provide an analytical basis for early warning and forecasting of lightning activity and radar echoes in severe convective weather in Jiangxi.

Key words： Jiangxi hail lightning distribution cold front echo band

Received: 07 November 2024

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	Du Jiang
	Xiahou Bin
	Huang Xiaohong

Cite this article:

Du Jiang,Xiahou Bin,Huang Xiaohong. Analysis of lightning distribution and radar echo evolution characteristics during three hail processes in Jiangxi Province[J]. Meteorological Hydrological and Marine Instrument, 2025, 42(6): 29-33.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2025/V42/I6/29

[1]	冯民学,焦雪,韦海容,等.江苏省雷电分布特征分析 [J].气象科学,2009,29(2):2246-2251.
[2]	李霞,汪庆森,巩晴霞,等.苏州地区雷电分布规律分析 [J].气象科学,2006(4):442-448.
[3]	王学良,张科杰,余田野,等.湖北省山区与平原雷电分布及其参数特征 [J].气象科技,2019,47(2):337-348.
[4]	何文,夏文梅,马中元,等.江西强雷电天气形势场及雷达回波特征分析 [J].气象科学,2018,38(5):699-706.
[5]	吕振东,段和平,强裕君,等.南昌地区雷击事件雷达回波特征分析 [J].山地气象学报,2024,48(2):41-48.
[6]	黄中根,马中元,谌芸,等.江西两次雷击事件雷达回波特征分析 [J].沙漠与绿洲气象,2022,16(4):79-87.
[7]	于泽华,吕振东.弱垂直风环境下冰雹云的闪电与回波特征 [J].气象水文海洋仪器,2025,42(1):48-51.
[8]	芦周成,王成芳,刘达,等.庐山森林雷击灾害防护设计与措施 [J].气象水文海洋仪器,2025,42(4):105-108.
[9]	夏侯斌,黄小红,张晓露.2023年江西盛夏雷暴回波群雷电特征分析 [J].气象水文海洋仪器,2025,42(4):46-49.
[10]	张烨方,刘冰,冯真祯,等.基于遥感影像大数据、卷积神经网络的福建省有效致灾雷电分布模型及应用 [J].气象科技,2021,49(6):953-959.