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	Analysis of Channel Luminosity Characteristics in Rocket-Triggered Lightning
	Lu Weitao1; Zhang Yijun1,2; Zhou Xiuji1; Meng Qing1; Zheng Dong1; Ma Ming1; Wang Fei1; Chen Shaodong1,3; Qie Xiushu4
刊名	ACTA METEOROLOGICA SINICA
	2008
卷号	22期号:3页码:362-374
关键词	rocket-triggered lightning high-speed photography lightning channel luminosity characteristics
ISSN号	0894-0525
通讯作者	Lu Weitao(wtlu@ustc.edu)
英文摘要	A comparison is made of the high-speed (2000 fps) photographic records in rocket-triggered negative lightning between two techniques. The analysis shows that: the initial speed of upward positive leader (UPL) in altitude-triggered negative lightning (ATNL) is about one order of magnitude less than that in classically triggered negative lightning (CTNL), while the triggering height of ATNL is higher than that of CTNL; the afterglow time of metal-vaporized part of the lightning channel can endure for about 160-170 ms, thus the luminosity of the air-ionized part call reflect the characteristics of the current in the lightning channel better than that of the metal-vaporized part. According to the different characteristics of the luminosity change of the lightning channel, together with the observation of the electric field changes, three kinds of processes after return-stroke (13,S) call be distinguished: the continuous decaying type without M component, the isolated type and the continuing type with M component, corresponding to different wave shapes of the continuous current. The geometric mean of the interval of RS with M component is 77 ms, longer than that (37 ms) of RS without M component. And the initial continuous current (ICC) with M component also has a longer duration compared to the ICC without M component. The distinction in the relative luminosity between the lightning channel before RS and that before M component is obvious: the former is very weak or even cannot be observed, while the latter is still considerably luminous.
收录类别	SCI
WOS关键词	PROPAGATION ; FLASHES ; FLORIDA ; LEADER ; VIDEO
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000260572900009
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556050
专题	寒区旱区环境与工程研究所
通讯作者	Lu Weitao
作者单位	1.Chinese Acad Meteorol Sci, Lab Lightning Phys & Protect Engn, Beijing 100081, Peoples R China 2.Chinese Acad Meteorol Sci, State Key Lab Severe Weather LaSW, Beijing 100081, Peoples R China 3.Lightning Protect Ctr Guangdong Prov, Guangzhou 510080, Guangdong, Peoples R China 4.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Lu Weitao,Zhang Yijun,Zhou Xiuji,et al. Analysis of Channel Luminosity Characteristics in Rocket-Triggered Lightning[J]. ACTA METEOROLOGICA SINICA,2008,22(3):362-374.
APA	Lu Weitao.,Zhang Yijun.,Zhou Xiuji.,Meng Qing.,Zheng Dong.,...&Qie Xiushu.(2008).Analysis of Channel Luminosity Characteristics in Rocket-Triggered Lightning.ACTA METEOROLOGICA SINICA,22(3),362-374.
MLA	Lu Weitao,et al."Analysis of Channel Luminosity Characteristics in Rocket-Triggered Lightning".ACTA METEOROLOGICA SINICA 22.3(2008):362-374.

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