A Comprehensive Study on the Improved Radio-Frequency Magnetic Field Measurement for the Initial Upward Leader of a Negative Rocket-Triggered Lightning Flash

doi:10.3390/rs13081533

HFCAS OpenIR

	A Comprehensive Study on the Improved Radio-Frequency Magnetic Field Measurement for the Initial Upward Leader of a Negative Rocket-Triggered Lightning Flash
	Shi, Tao 1,2; Lu, Gaopeng 1,3,4; Fan, Yanfeng 5; Li, Xiao 6; Zhang, Yang 5
	2021-04-01
发表期刊	REMOTE SENSING
通讯作者	Lu, Gaopeng(gplu@ustc.edu.cn)
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.
关键词	radio-frequency magnetic field initial upward leader rocket-triggered lightning
DOI	10.3390/rs13081533
关键词[WOS]	POSITIVE LEADERS ; STAGE
收录类别	SCI
语种	英语
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]
项目资助者	National Key R&D Program of China ; Natural Science Foundation of Excellent Youth Program of China ; National Natural Science Foundation of China
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000644681900001
出版者	MDPI
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/122355
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.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China 2.Wuhu Meteorol Bur, Wuhu 241000, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Peoples R China 4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, HFIPS, Hefei 230031, Peoples R China 5.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China 6.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100049, Peoples R China
通讯作者单位	中科院安徽光学精密机械研究所
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).