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DOI | 10.1029/2018JD029488 |
Broadband Characteristics of Chaotic Pulse Trains Associated With Sequential Dart Leaders in a Rocket-Triggered Lightning Flash | |
Pu, Yunjiao1,2; Qie, Xiushu1,2,3; Jiang, Rubin1,3; Sun, Zhuling1; Liu, Mingyuan1,2; Zhang, Hongbo1 | |
2019-04-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:7页码:4074-4085 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Based on simultaneous measurements of fast E-field change, very high frequency radiation and channel mapping, channel base current, and high-speed video, the characteristics of chaotic pulse trains (CPTs) during propagation of dart leaders in a rocket-triggered lightning were analyzed. The triggered lightning involved 16 subsequent leader-return strokes traversing in the same grounding channel. At least five dart leaders showed significant CPT signals during its propagation, with much larger intensity than that in normal leader stage at broadband of low-frequency-medium-frequency, very high frequency, and visible light band. All CPTs occurred in the final stage of the leader development, within 150 mu s prior to the return strokes. The leader velocity and the charge transfer are both related to the instantaneous intensity of CPT, but the relationship is not always solid when the two parameters are considered individually. Nevertheless, the large product of return stroke charge to 1 ms and the velocity of the leader (QV) could be a reliable proxy/indicator for CPT. All CPTs correspond to a larger local QV with a threshold higher than 1 x 10(7) C.m/s when CPT is determined as chaotic electric field pulses with magnitude larger than 3 std of the magnitude of E-fluctuation waveform of the whole flash. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467147400026 |
WOS关键词 | MOMENT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182426 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China; 3.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Pu, Yunjiao,Qie, Xiushu,Jiang, Rubin,et al. Broadband Characteristics of Chaotic Pulse Trains Associated With Sequential Dart Leaders in a Rocket-Triggered Lightning Flash[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(7):4074-4085. |
APA | Pu, Yunjiao,Qie, Xiushu,Jiang, Rubin,Sun, Zhuling,Liu, Mingyuan,&Zhang, Hongbo.(2019).Broadband Characteristics of Chaotic Pulse Trains Associated With Sequential Dart Leaders in a Rocket-Triggered Lightning Flash.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(7),4074-4085. |
MLA | Pu, Yunjiao,et al."Broadband Characteristics of Chaotic Pulse Trains Associated With Sequential Dart Leaders in a Rocket-Triggered Lightning Flash".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.7(2019):4074-4085. |
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