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DOI | 10.1029/2020GL092160 |
On the terrestrial gamma‐ray flashes preceding narrow bipolar events | |
Hongbo Zhang; Gaopeng Lu; Fanchao Lyu; Shaoling Xiong; Mohd Riduan Ahmad; Qibin Yi; Dongshuai Li; Tao Xian; Jing Yang; Feifan Liu; Baoyou Zhu; Yunjiao Pu; Steven A. Cummer; Michael S. Briggs; Xiushu Qie | |
2021-04-06 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Narrow bipolar events (NBEs) are occasionally reported to occur within a few ms after Terrestrial Gamma‐ray Flashes (TGFs), while the formation mechanism remains mysterious partially due to the lack of sufficient observations. Here, nine more TGFs of this scenario are reported with concurrent LF sferics and lightning location data. The gamma‐ray production in these TGFs preceded the occurrence of NBEs by a minimum of 60 µs up to 13.5 ms, and no other fast leader discharge was found within 20 ms before the TGF. The TGF‐preceded positive NBEs occurred at altitudes of 8.6 to 11 km in thunderstorms, likely in the high electric field (E‐field) region of lightning initiation. The analyses show that the NBE‐preceding TGFs bear harder energy spectrum with larger proportion of high‐energy photons than EIP‐related TGFs produced in association with lightning leader. Our findings support the relativistic feedback mechanism of gamma‐ray generation in the large‐scale thunderstorm E‐field. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/322090 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Hongbo Zhang,Gaopeng Lu,Fanchao Lyu,等. On the terrestrial gamma‐ray flashes preceding narrow bipolar events[J]. Geophysical Research Letters,2021. |
APA | Hongbo Zhang.,Gaopeng Lu.,Fanchao Lyu.,Shaoling Xiong.,Mohd Riduan Ahmad.,...&Xiushu Qie.(2021).On the terrestrial gamma‐ray flashes preceding narrow bipolar events.Geophysical Research Letters. |
MLA | Hongbo Zhang,et al."On the terrestrial gamma‐ray flashes preceding narrow bipolar events".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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