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DOI	10.1016/j.atmosres.2018.11.008
	Correlated luminosity and magnetic field peaks produced by canton tower-strokes
	Chen L.; Lyu W.; Zhang Y.; Ma Y.; Qi Q.; Wu B.; Zhu Y.
发表日期	2019
ISSN	0169-8095
起始页码	59
结束页码	69
卷号	218
英文摘要	Simultaneously measured luminosity and magnetic field induced by the return strokes in typical upward and downward flashes occurring on the 600 m-tall Canton Tower were presented. The correlation between peak relative luminosity and peak relative magnetic field induced by return strokes were examined for 4 upward and 4 downward flashes. All the flashes contained 3 or more return strokes and all the return strokes in a same flash followed the same path. Luminosity of the lightning channel close to the top of the Canton Tower exhibited characteristics of pronounced initial peak with 20–90% rise time of about 5.2 μs (arithmetic mean value, based on 43 samples) for subsequent strokes, which was inferred to be related to the secondary (typically largest) peak current at the top of the Canton Tower. The magnetic field induced by subsequent strokes exhibited characteristics of pronounced initial peak with 20–90% rise time of about 1.2 μs (arithmetic mean value, based on 47 samples). The initial peak magnetic field was modified to proportionally represent the largest peak current at the top of the Canton Tower. Roughly linear and quadratic relation between the initial peak luminosity and modified peak magnetic field were found for subsequent strokes in both upward and downward flashes. The quadratic relation fit the data slightly better than the linear relation. The ratio of peaks of luminosity to magnetic field of the downward first stroke were considerably larger than those of the subsequent strokes, the possible reasons were also discussed. © 2018 Elsevier B.V.
英文关键词	Lightning; Peak luminosity; Peak magnetic field; Return stroke
语种	英语
scopus关键词	Lightning; Lightning protection; Luminance; Towers; Arithmetic mean; Lightning channel; Linear relation; Peak currents; Return stroke; Risetimes; Magnetic fields; atmospheric electricity; correlation; electric field; lightning; luminescence; magnetic field; China; Guangdong; Guangzhou
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162028
作者单位	Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou, 510080, China; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; Department of Atmospheric and oceanic Sciences & Institute of Atmospheric Sciences, FuDan University, Shanghai, 200438, China; Earth System Science Center, University of Alabama in Huntsville, Huntsville, AL, United States
推荐引用方式 GB/T 7714	Chen L.,Lyu W.,Zhang Y.,et al. Correlated luminosity and magnetic field peaks produced by canton tower-strokes[J],2019,218.
APA	Chen L..,Lyu W..,Zhang Y..,Ma Y..,Qi Q..,...&Zhu Y..(2019).Correlated luminosity and magnetic field peaks produced by canton tower-strokes.Atmospheric Research,218.
MLA	Chen L.,et al."Correlated luminosity and magnetic field peaks produced by canton tower-strokes".Atmospheric Research 218(2019).