气候变化领域集成服务门户(CCPortal): Analysis of Electric and Magnetic Lightning-Generated Wave Amplitudes Measured by the Van Allen Probes

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DOI	10.1029/2020GL087503
	Analysis of Electric and Magnetic Lightning-Generated Wave Amplitudes Measured by the Van Allen Probes
	Ripoll J.-F.; Farges T.; Malaspina D.M.; Lay E.H.; Cunningham G.S.; Hospodarsky G.B.; Kletzing C.A.; Wygant J.R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:6
英文摘要	We provide a statistical analysis of both electric and magnetic field wave amplitudes of very low frequency lightning-generated waves (LGWs) based on the equivalent of 11.5 years of observations made by the Van Allen Probes encompassing ~24.6 × 106 survey mode measurements. We complement this analysis with data from the ground-based World Wide Lightning Location Network to explore differences between satellite and ground-based measurements. LGW mean amplitudes are found to be low compared with other whistler mode waves (1 ± 1.6 pT and 19 ± 59 μV/m). Extreme events (1/5,000) can reach 100 pT and contributes strongly to the mean power below L = 2. We find excellent correlations between World Wide Lightning Location Network-based power and wave amplitudes in space at various longitudes. We reveal strong dayside ionospheric damping of the LGW electric field. LGW amplitudes drop for L < 2, contrary to the Earth's intense equatorial lightning activity. We conclude that it is difficult for equatorial LGW to propagate and remain at L < 2. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospherics; Electromagnetic waves; Magnetism; Probes; Radiation belts; Wave power; Electric and magnetic fields; Ground based measurement; Lightning activity; Lightning location; Magnetic waves; Very low frequency; Wave amplitudes; Whistler-mode waves; Lightning; electrical power; electromagnetic field; electromagnetic method; extreme event; ground-based measurement; lightning; probe; wave generation; wave power
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170534
作者单位	CEA, DAM, DIF, F-91297, Arpajon, France; Department of Astrophysical and Planetary Sciences, University of Colorado Boulder, Boulder, CO, United States; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States; Los Alamos National Laboratory, Los Alamos, NM, United States; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; School of Physics and Astronomy, University of Minnesota, Twin Cities, Minneapolis, MN, United States
推荐引用方式 GB/T 7714	Ripoll J.-F.,Farges T.,Malaspina D.M.,et al. Analysis of Electric and Magnetic Lightning-Generated Wave Amplitudes Measured by the Van Allen Probes[J],2020,47(6).
APA	Ripoll J.-F..,Farges T..,Malaspina D.M..,Lay E.H..,Cunningham G.S..,...&Wygant J.R..(2020).Analysis of Electric and Magnetic Lightning-Generated Wave Amplitudes Measured by the Van Allen Probes.Geophysical Research Letters,47(6).
MLA	Ripoll J.-F.,et al."Analysis of Electric and Magnetic Lightning-Generated Wave Amplitudes Measured by the Van Allen Probes".Geophysical Research Letters 47.6(2020).