DOI: 10.1002/2015GL065047
论文题名: Insights into high peak current in-cloud lightning events during thunderstorms
作者: Lyu F. ; Cummer S.A. ; McTague L.
刊名: Geophysical Research Letters
ISSN: 0094-9277
EISSN: 1944-9008
出版年: 2015
卷: 42, 期: 16 起始页码: 6836
结束页码: 6843
语种: 英语
英文关键词: energetic in-cloud pulses
; high peak current
; in-cloud events
; lightning
; narrow bipolar events
; TGFs
Scopus关键词: Balloons
; Gamma rays
; Energetic in-cloud pulses
; High-peak currents
; Ionospheric perturbation
; Lightning detection
; Narrow bipolar events
; Temporal and spatial
; Terrestrial Gamma ray Flashes
; TGFs
; Lightning
; cloud to ground lightning
; gamma ray radiation
; ionosphere
; optical property
; perturbation
; spatiotemporal analysis
; thunderstorm
; waveform analysis
英文摘要: We investigated National Lightning Detection Network reports and lightning radio waveforms in a 44 day observation period to analyze the in-cloud (IC) events producing currents above 200 kA. The results show that there are two distinct classes of IC lightning events with very high peak currents: the well-known narrow bipolar events, and a previously unreported type that we call energetic in-cloud pulses (EIPs). Their temporal and spatial context shows that EIPs are generated from existing negative polarity leaders that are propagating usually upward but sometimes downward. The nearly identical characteristics of EIPs and some previously reported terrestrial gamma ray flashes (TGFs) indicate a likely connection between the two, which further suggests the possibility of downward directed TGFs. These very high peak current IC events also suggest the association of EIPs with ionospheric perturbations and optical emissions known as elves. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941740594&doi=10.1002%2f2015GL065047&partnerID=40&md5=f05fc0053d2f0279d41da41c91350cd2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8893
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Electrical and Computer Engineering Department, Duke University, Durham, NC, United States
Recommended Citation:
Lyu F.,Cummer S.A.,McTague L.. Insights into high peak current in-cloud lightning events during thunderstorms[J]. Geophysical Research Letters,2015-01-01,42(16).