气候变化领域集成服务门户(CCPortal): The Relationship Between TGF Production in Thunderstorms and Lightning Flash Rates and Amplitudes

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DOI	10.1029/2020JD034401
	The Relationship Between TGF Production in Thunderstorms and Lightning Flash Rates and Amplitudes
	Larkey R.K.; Sample J.G.; Smith D.M.; Lapierre J.L.; DiGangi E.; Holzworth R.H.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:13
英文摘要	We provide evidence that Terrestrial Gamma-Ray Flashes (TGFs), in well isolated thunderstorms, tend to occur during periods of low and declining flash rates, and when the flash amplitudes are larger than average. This conclusion comes from examining the results of 371 manually tracked TGF-producing thunderstorms. Fermi-GBM identified TGFs are used for this analysis and lightning data come from both World Wide Lightning Location Network and Earth Networks Total Lightning Network. The data from these storms suggest that TGFs are likely to occur in almost every phase of storms that last longer than an hour, but tend to occur later on in shorter storms. We also note that, in short storms, TGFs are more likely to accompany a flash when the flash rates of the storm are lower than average, and they are less likely per flash during the peak flash rate periods of the storms. We find that the tendency for TGFs to occur while the flash rate is falling and when the amplitudes of flashes (the sum of the absolute values of peak currents of all constituent sferics in the flash) are larger than average, does not depend strongly on the duration of the storms. This implies that not just any lightning flash can or even will produce a TGF, but that the electrical conditions of the storm play a crucial role in TGF production. © 2021. The Authors.
英文关键词	amplitude; CG; flash rates; IC; lightning; TGF
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237167
作者单位	Department of Physics, Montana State University, Bozeman, MT, United States; Department of Physics, Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, CA, United States; Research and Development, Earth Networks, Germantown, MD, United States; Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States
推荐引用方式 GB/T 7714	Larkey R.K.,Sample J.G.,Smith D.M.,et al. The Relationship Between TGF Production in Thunderstorms and Lightning Flash Rates and Amplitudes[J],2021,126(13).
APA	Larkey R.K.,Sample J.G.,Smith D.M.,Lapierre J.L.,DiGangi E.,&Holzworth R.H..(2021).The Relationship Between TGF Production in Thunderstorms and Lightning Flash Rates and Amplitudes.Journal of Geophysical Research: Atmospheres,126(13).
MLA	Larkey R.K.,et al."The Relationship Between TGF Production in Thunderstorms and Lightning Flash Rates and Amplitudes".Journal of Geophysical Research: Atmospheres 126.13(2021).