气候变化领域集成服务门户(CCPortal): A Comparative Study on the Discontinuous Luminosities of Two Upward Lightning Leaders With Opposite Polarities

CCPortal

DOI	10.1029/2020JD032533
	A Comparative Study on the Discontinuous Luminosities of Two Upward Lightning Leaders With Opposite Polarities
	Wang X.; Wang D.; He J.; Takagi N.
发表日期	2020
ISSN	2169897X
卷号	125 期号:12
英文摘要	We have performed a comparative study on the luminosity of 12 steps in an upward positive leader and eight steps in an upward negative leader recorded under similar conditions. Through analyzing their so-called differential luminosity profiles along leader channels, we found that the steps of positive leaders can be classified into two types. The type I step luminosity is similar to the luminosity produced by a negative leader step and is generally featured with a rapid increase near the leader tip and accompanied by a backward propagation along the leader channel. The type II step is featured with continuous luminosity variation along the leader channel. No apparent backward propagation has been identified in the type II step luminosity of the positive leader. Based on these observations, we have discussed how the two types of steps of positive leaders are produced. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	lightning; stepwise fashion; upward leader
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/185959
作者单位	State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, China; Department of Electrical, Electronic and Computer Engineering, Gifu University, Gifu, Japan
推荐引用方式 GB/T 7714	Wang X.,Wang D.,He J.,et al. A Comparative Study on the Discontinuous Luminosities of Two Upward Lightning Leaders With Opposite Polarities[J],2020,125(12).
APA	Wang X.,Wang D.,He J.,&Takagi N..(2020).A Comparative Study on the Discontinuous Luminosities of Two Upward Lightning Leaders With Opposite Polarities.Journal of Geophysical Research: Atmospheres,125(12).
MLA	Wang X.,et al."A Comparative Study on the Discontinuous Luminosities of Two Upward Lightning Leaders With Opposite Polarities".Journal of Geophysical Research: Atmospheres 125.12(2020).