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DOI	10.1016/j.atmosres.2020.105099
	The conductivity and propagation property of lightning leader tip
	Zhang N.; Yuan P.; An T.T.; Zhang M.; Chen R.R.
发表日期	2020
ISSN	0169-8095
卷号	245
英文摘要	The propagation properties of lightning leader have an important significance for investigating the physical mechanism of lightning process. According to the spectrum and channel pictures of cloud to ground lightning development stage taken by high-speed slit-less spectrograph, the variation characteristics of two-dimensional transmission speed (2-D speed) of lightning leader are analyzed, and their correlation with conductivity and propagation direction of the channel tip are further investigated. The results show that the magnitude of the 2-D speed is roughly proportional to the electrical conductivity of the leader tip, excepting the forked end, which presents comparatively lower values that should be related to the local charge accumulation. In addition, the development direction of the leader tip has obvious influence on the speed value, cosine of the angle between the development direction of the leader and the vertical direction is positive correlated with the propagation speed. © 2020 Elsevier B.V.
关键词	Lightning Speed Cloud-to-ground lightning Cosine of the angles Development directions Electrical conductivity Propagation direction Propagation properties Transmission speed Variation characteristics Clouds
语种	英语
来源机构	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132361
推荐引用方式 GB/T 7714	Zhang N.,Yuan P.,An T.T.,et al. The conductivity and propagation property of lightning leader tip[J]. Atmospheric Research,2020,245.
APA	Zhang N.,Yuan P.,An T.T.,Zhang M.,&Chen R.R..(2020).The conductivity and propagation property of lightning leader tip.,245.
MLA	Zhang N.,et al."The conductivity and propagation property of lightning leader tip".245(2020).