The initial radius of lightning return stroke channel and its relation with discharge intensity

doi:10.1016/j.atmosres.2022.106161

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	The initial radius of lightning return stroke channel and its relation with discharge intensity
	Wang, Wangsheng 1; Yuan, Ping 1; Huang, Xin 1; Wan, Ruibin 1; Qin, Yuanshuai 2; Dou, Weiping 2; An, Tingting 1; Liu, Guorong 3; Deng, Hong 1
刊名	Atmospheric Research
	2022-08-01
卷号	273
关键词	Lightning Optical correlation Electrostatic energies Initial radius Internal energies Lightning discharge Lightning return stroke Lightning spectrum Line charge density Line charges Stroke channel
ISSN号	0169-8095
DOI	10.1016/j.atmosres.2022.106161
英文摘要	The initial radius of the return stroke is one of the important parameters reflecting lightning discharge intensity. Based on spectral diagnosis and electrostatic approximation of the vertically descending leader model, the lightning channel temperature, line charge density, and electrostatic energy of seven dart leader–return stroke sequences were estimated. Finally, the initial radii of the return strokes were obtained. We analyzed the relationship between the initial radii and the corresponding discharge parameters. The initial radius is found to have a good linear correlation with each of the following quantities: the line charge density of the dart leader, the total intensity of ionic lines in the spectra, and the optical radius. It is also inversely proportional to the leader duration. These correlations confirm that the initial radius is closely related to discharge intensity, and that the charge stored in the leader channel directly determines the initial radius and discharge intensity of the return stroke. © 2022 Elsevier B.V.
语种	英语
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157898]
专题	兰州理工大学
作者单位	1.Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Gansu, Lanzhou; 730070, China; 2.Linear Accelerator Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou; 730000, China; 3.Department of Physics, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Wangsheng,Yuan, Ping,Huang, Xin,et al. The initial radius of lightning return stroke channel and its relation with discharge intensity[J]. Atmospheric Research,2022,273.
APA	Wang, Wangsheng.,Yuan, Ping.,Huang, Xin.,Wan, Ruibin.,Qin, Yuanshuai.,...&Deng, Hong.(2022).The initial radius of lightning return stroke channel and its relation with discharge intensity.Atmospheric Research,273.
MLA	Wang, Wangsheng,et al."The initial radius of lightning return stroke channel and its relation with discharge intensity".Atmospheric Research 273(2022).