气候变化领域集成服务门户(CCPortal): Evolution of Discharge Characteristics Along the Positive Cloud-To-Ground Lightning Channel

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DOI	10.1029/2020JD033478
	Evolution of Discharge Characteristics Along the Positive Cloud-To-Ground Lightning Channel
	An T.; Yuan P.; Chen R.; Zhang N.; Wan R.; Zhang M.; Liu G.
发表日期	2021
ISSN	2169897X
卷号	126 期号:5
英文摘要	Two positive cloud-to-ground lightning spectra have been captured by a slit-less spectrograph. In combination with the synchronous electric field change waveshape, the discharge characteristics along the channel have been investigated. The results show that the total intensity of ionic lines in spectra and the electrical conductivity increase with the increase of channel height. According to the positive correlation between the total intensity of ionic lines and the discharge current, it is found that the current intensity of downward positive cloud-to-ground lightning increases with the increase of channel height. Comparing it with the reported current attenuation along the channel of downward negative lightning, it is deduced that the increasing or decreasing of the current along the discharge channel is likely to be related to the current direction. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Current variation; discharge channel; lightning spectra; return stroke; the downward positive cloud-to-ground lightning
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185416
作者单位	Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, China; Department of Atmospheric and Oceanic Sciences, Fudan University, Shanghai, China; Department of Physics, Lanzhou University of Technology, Lanzhou, China
推荐引用方式 GB/T 7714	An T.,Yuan P.,Chen R.,et al. Evolution of Discharge Characteristics Along the Positive Cloud-To-Ground Lightning Channel[J],2021,126(5).
APA	An T..,Yuan P..,Chen R..,Zhang N..,Wan R..,...&Liu G..(2021).Evolution of Discharge Characteristics Along the Positive Cloud-To-Ground Lightning Channel.Journal of Geophysical Research: Atmospheres,126(5).
MLA	An T.,et al."Evolution of Discharge Characteristics Along the Positive Cloud-To-Ground Lightning Channel".Journal of Geophysical Research: Atmospheres 126.5(2021).