Characteristics of negative lightning flashes presenting multiple-ground terminations on a millisecond-scale
文献类型：期刊论文
| 作者 | Kong, X. Z.1; Qie, X. S.2; Zhao, Y.1; Zhang, T.1 |
| 刊名 | ATMOSPHERIC RESEARCH
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 91期号:2-4页码:381-386 |
| 关键词 | Cloud-to-ground lightning flash Multiple-ground terminations Return stroke High-speed video camera |
| ISSN号 | 0169-8095 |
| DOI | 10.1016/j.atmosres.2008.03.025 |
| 通讯作者 | Kong, X. Z.(kongxz@lzb.ac.cn) |
| 英文摘要 | By using a high-speed video camera system (1000 frames s(-1)) in correlation with fast and slow antenna systems, the negative cloud-to-ground (CG) flashes that struck the ground with more than one termination have been analyzed. This kind of stroke, named as multiple-ground terminations stroke (MGTS), was produced by different branches of the same stepped leader during quite a short time. Based on optical images, the 2D progression speed of leader branches was estimated to be in the range (0.9-2.0) x 10(5) m s(-1). The distance between adjacent striking points of MGTS was from 0.2 km to 1.9 km. The percentage of flashes with multiple-ground terminations occupied about 15% (9 out of 59) of the total negative CC flashes, with a range of 11%-20% in different areas in China. The time intervals between the two adjacent peaks ranged from 4 mu s to 486 mu s based on the E-field change caused by the MGTS. The flashes which had multiple striking points on the ground during quite a short time may be a common phenomenon in the lightning discharge process. It might produce more serious damage to facilities on the ground and should not be neglected in the design of lightning protection. (C) 2008 Published by Elsevier B.V. |
| 收录类别 | SCI ; ISTP |
| WOS关键词 | INTERNATIONAL PROGRAM TRIP ; ELECTRIC-FIELD ; LEADER |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000263193900031 |
| 出版者 | ELSEVIER SCIENCE INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556243 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Kong, X. Z. |
| 作者单位 | 1.Chinese Acad Sci, Lab Climate Environm & Disasters Western China, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, Lab Middle Atmosphere & Global Environm LAGEO, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kong, X. Z.,Qie, X. S.,Zhao, Y.,et al. Characteristics of negative lightning flashes presenting multiple-ground terminations on a millisecond-scale[J]. ATMOSPHERIC RESEARCH,2009,91(2-4):381-386. |
| APA | Kong, X. Z.,Qie, X. S.,Zhao, Y.,&Zhang, T..(2009).Characteristics of negative lightning flashes presenting multiple-ground terminations on a millisecond-scale.ATMOSPHERIC RESEARCH,91(2-4),381-386. |
| MLA | Kong, X. Z.,et al."Characteristics of negative lightning flashes presenting multiple-ground terminations on a millisecond-scale".ATMOSPHERIC RESEARCH 91.2-4(2009):381-386. |
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来源：寒区旱区环境与工程研究所
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