Conductivity characteristics and corona sheath radius of lightning return stroke channel

doi:10.1016/j.atmosres.2021.105649

IR > 理学院

	Conductivity characteristics and corona sheath radius of lightning return stroke channel
	An, Tingting 1; Yuan, Ping 1; Wan, Ruibin 1; Chen, Rongrong 1; Liu, Guorong2 ; Cen, Jianyong 3; Wang, Xuejuan 4
	2021-08-15
发表期刊	Atmospheric Research
ISSN	0169-8095
卷号	258
摘要	The characteristics of lightning corona sheath are of common concern in the lightning physics and lightning protection research. Using the spectra of two natural cloud-to-ground lightning including multiple return strokes recorded by a slit-less spectrograph, we investigated the electrical conductivity distribution along the radial direction of the channel. The results indicated that a high conductivity channel of above 104 S/m existed within an average radius of around 1.8 cm and corresponded to the temperature of around 20,000 K. This finding reflects the characteristics of the current-carrying channel. The electrical conductivity decayed steeply to about 500 S/m with increasing radius and then decayed slowly. Based on these results, it was estimated that the corona sheath radii of the return stroke channel were around 3.34–19.10 cm. The corona sheath radius was positively correlated with the leader charge quantity and the apparent diameter of the corresponding leader channel. A wide corona-channel radius corresponds to an intense discharge. © 2021 Elsevier B.V.
关键词	Clouds Lightning protection Cloud-to-ground lightning Corona sheath radius Electrical conductivity distribution Leader charge Lightning return stroke Multiple returns Natural lightning Return stroke Spectra's Stroke channel
DOI	10.1016/j.atmosres.2021.105649
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000659170000001
出版者	Elsevier Ltd
EI入藏号	20211910323988
EI主题词	Electric conductivity
EI分类号	443 Meteorology ; 701.1 Electricity: Basic Concepts and Phenomena ; 914.1 Accidents and Accident Prevention
来源库	WOS
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148355
专题	理学院
通讯作者	Yuan, Ping
作者单位	1.Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Dept Phys, Lanzhou 730050, Peoples R China; 3.Shanxi Normal Univ, Sch Phys & Informat Engn, Linfen 041004, Shanxi, Peoples R China; 4.Nanjing Univ Informat Sci & Technol, Minist Educ KLME, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Key Lab Meteorol Disaster,Joint Int Res Lab Clima, Nanjing 210044, Peoples R China
推荐引用方式 GB/T 7714	An, Tingting,Yuan, Ping,Wan, Ruibin,et al. Conductivity characteristics and corona sheath radius of lightning return stroke channel[J]. Atmospheric Research,2021,258.
APA	An, Tingting.,Yuan, Ping.,Wan, Ruibin.,Chen, Rongrong.,Liu, Guorong.,...&Wang, Xuejuan.(2021).Conductivity characteristics and corona sheath radius of lightning return stroke channel.Atmospheric Research,258.
MLA	An, Tingting,et al."Conductivity characteristics and corona sheath radius of lightning return stroke channel".Atmospheric Research 258(2021).