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DOI | 10.1029/2019JD031237 |
Measurements of Magnetic Pulse Bursts During Initial Continuous Current of Negative Rocket-Triggered Lightning | |
Fan, Yanfeng1; Lu, Gaopeng2,3; Li, Xiao4; Zheng, Tianxue5; Zhang, Hongbo4; Jiang, Rubin4; Liu, Mingyuan4; Qie, Xiushu4; Zhang, Yijun6; Zhang, Yang1; Lyu, Weitao1; Zheng, Dong1 | |
2019-11-17 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:22页码:11710-11721 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | During the SHandong Triggering Lightning Experiment (SHATLE) in summer of 2014 and 2015 and the Guangdong Comprehensive Observation Experiment on Lightning Discharge (GCOELD) campaign in 2018, we have conducted the observations of the magnetic pulse bursts (MPBs) during the initial continuous current in negative rocket-triggered lightning. The MPBs are commonly recorded at the main site of SHATLE (970 m from the rocket launch site), but the synchronous magnetic field (B-field) measurements at the close site of SHATLE (78 m from the rocket launch site) show the slow variations with small MPBs superposing on them. Note that both the charge transfer and the relative brightness increase notably during the appearance of the MPBs. After shifting up the operation frequency of the magnetic sensor, the MPBs can be observed at close distance (80 m from the rocket launch site) obviously in GCOELD. Observations show that the radiation sources of MPBs originate from the breakdown in the vicinity of the leader tip, but the sources of the initial magnetic pulses (IMPs) measured at the very initial stage of triggered lightning are from the radiation of the whole steel wire. The continuous current measured at the channel base during the MPBs cannot reflect the characteristics of breakdown current, because the current is attenuated and dispersed when propagating along the high-impedance leader channel. The average peak current associated with the MPBs is estimated to be on the order of kiloamperes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496745200001 |
WOS关键词 | POSITIVE LEADERS ; STAGE |
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/225787 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; 2.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Anhui, Peoples R China; 3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing, Peoples R China; 5.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China; 6.Fudan Univ, Inst Atmospher Sci, Dept Atmospher & Ocean Sci, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Fan, Yanfeng,Lu, Gaopeng,Li, Xiao,et al. Measurements of Magnetic Pulse Bursts During Initial Continuous Current of Negative Rocket-Triggered Lightning[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(22):11710-11721. |
APA | Fan, Yanfeng.,Lu, Gaopeng.,Li, Xiao.,Zheng, Tianxue.,Zhang, Hongbo.,...&Zheng, Dong.(2019).Measurements of Magnetic Pulse Bursts During Initial Continuous Current of Negative Rocket-Triggered Lightning.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(22),11710-11721. |
MLA | Fan, Yanfeng,et al."Measurements of Magnetic Pulse Bursts During Initial Continuous Current of Negative Rocket-Triggered Lightning".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.22(2019):11710-11721. |
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