A Comprehensive Study on the Improved Radio-Frequency Magnetic Field Measurement for the Initial Upward Leader of a Negative Rocket-Triggered Lightning Flash
文献类型：期刊论文
| 作者 | Shi, Tao4,6; Lu, Gaopeng1,5,6; Fan, Yanfeng3; Li, Xiao2; Zhang, Yang3 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 13 |
| 关键词 | radio-frequency magnetic field initial upward leader rocket-triggered lightning |
| DOI | 10.3390/rs13081533 |
| 通讯作者 | Lu, Gaopeng(gplu@ustc.edu.cn) |
| 英文摘要 | The spectrum analysis of the lightning current in the experiment campaign of 2019 reveals that the lightning current waveform contains rich medium-frequency (MF) radiation signals in the initial stage. However, there is a lack of resolution for MF signals by using conventional magnetic sensors. The bandwidth of radio-frequency magnetic field measurement is improved by extending to 20 kHz-1.2 MHz in the Guangdong Comprehensive Observation Experiment on Lightning Discharge (GCOELD). During the previously noticed "quiet period" that can only maintain the upward propagation with relatively small-scale breakdown, magnetic pulses of quiet period (MPQPs) are discerned more clearly than the previous experiment in GCOELD. Aided by the improvement of a magnetic sensor, this paper captures richer magnetic field signals radiated from the weak discharge of the precursory phage than previous experiments in GCOELD. The analysis shows that both aborted UPLs and UPLs are caused by weak discharge pulses called initial precursor pulses (IPPs), which are very similar to the amplitude of the streamer discharge obtained in the laboratory. In summary, the signals detected by an improved magnetic sensor will provide an important reference for exploring the pulse characteristics of the whole discharge process and formation mechanism of the UPL in the initial stage of triggered lightning. |
| WOS关键词 | POSITIVE LEADERS ; STAGE |
| 资助项目 | National Key R&D Program of China[2017YFC1501501] ; Natural Science Foundation of Excellent Youth Program of China[41622501] ; National Natural Science Foundation of China[41875006] ; National Natural Science Foundation of China[U1938115] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000644681900001 |
| 出版者 | MDPI |
| 资助机构 | National Key R&D Program of China ; Natural Science Foundation of Excellent Youth Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122354]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Lu, Gaopeng |
| 作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100049, Peoples R China 3.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China 4.Wuhu Meteorol Bur, Wuhu 241000, Peoples R China 5.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, HFIPS, Hefei 230031, Peoples R China 6.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Tao,Lu, Gaopeng,Fan, Yanfeng,et al. A Comprehensive Study on the Improved Radio-Frequency Magnetic Field Measurement for the Initial Upward Leader of a Negative Rocket-Triggered Lightning Flash[J]. REMOTE SENSING,2021,13. |
| APA | Shi, Tao,Lu, Gaopeng,Fan, Yanfeng,Li, Xiao,&Zhang, Yang.(2021).A Comprehensive Study on the Improved Radio-Frequency Magnetic Field Measurement for the Initial Upward Leader of a Negative Rocket-Triggered Lightning Flash.REMOTE SENSING,13. |
| MLA | Shi, Tao,et al."A Comprehensive Study on the Improved Radio-Frequency Magnetic Field Measurement for the Initial Upward Leader of a Negative Rocket-Triggered Lightning Flash".REMOTE SENSING 13(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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