拉薩地區(qū)一次短時強對流天氣中的冰雹和地閃活動特征分析

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基金項目 西藏自治區(qū)科學技術(shù)廳自然科學基金一般項目（XZ202201ZR0016G）。

作者簡介 洛松卓瑪（1995—），女，西藏芒康人，助理工程師，主要從事雷電研究。

收稿日期 2023-08-02

Analysis of Hail and Ground Lightning Activity Characteristics during A Short-term Strong Convective Weather Process in Lhasa Region

Luosong Zhuoma et al（Lhasa Meteorological Bureau， Lhasa， Xizang 850000）

Abstract Analyzed the characteristics of hail and lightning activity during the short-term strong convective weather event that occurred in Lhasa city on July 23， 2020. The results indicated that， there was a good correspondence between the ground lightning frequencies and hail in this process. During the hailing stage， the positive ground lightning frequencies increased， the negative ground lightning weakens， and the proportion of positive ground lightning was the highest; The hailing stage mainly focused on high current intensity between 20～60 kA; The lightning current steepness during hailing was mainly concentrated at 5～10 kA/μs.

Key words Hail; Lightning; Lightning  intensity; Lightning steepness

摘要 分析了2020年7月23日發(fā)生在拉薩市區(qū)短時強對流天氣中的冰雹和地閃活動特征。（剩余4785字）