气候变化领域集成服务门户(CCPortal): Characteristic Features of the Clouds Producing Thunderstorm Ground Enhancements

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DOI	10.1029/2019JD030895
	Characteristic Features of the Clouds Producing Thunderstorm Ground Enhancements
	Svechnikova E.K.; Ilin N.V.; Mareev E.A.; Chilingarian A.A.
发表日期	2021
ISSN	2169897X
卷号	126 期号:9
英文摘要	Thunderstorm ground enhancements (TGEs) are fluxes of energetic particles multiplied in thunderclouds, which may be registered by ground-based detectors. Using the Weather Research and Forecasting (WRF) Model, the state of the atmosphere with a 1-km horizontal resolution is modeled for convective events accompanied by TGEs observed at the high altitude Aragats Research Station in Armenia (40.47 N, 44.18 E, 3,200 m above sea level). By comparing the data obtained in observations with the results of simulations using a microphysical parameterization for WRF, a technique is developed for estimating charge distribution parameters. A typical charge distribution in a TGE-producing cloud is found to be well approximated by a two-layered charge structure with a lower positive charge region formed by graupel particles and an upper negative charge region formed by snow particles. The characteristic charge density is 0.01 nC/m3 for the graupel cluster and −0.02 nC/m3 for the snow cluster. A vertical distance of about 1–2 km between the lower positive and upper negative layers is sufficient for the development of an energetic particle avalanche. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	cloud electric structure; thunderstorm ground enhancement; WRF
语种	英语
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/185256
作者单位	Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russian Federation; Lobachevsky State University, Nizhny Novgorod, Russian Federation; A. Alikhanyan National Lab (Yerevan Physics Institute), Yerevan, Armenia
推荐引用方式 GB/T 7714	Svechnikova E.K.,Ilin N.V.,Mareev E.A.,et al. Characteristic Features of the Clouds Producing Thunderstorm Ground Enhancements[J],2021,126(9).
APA	Svechnikova E.K.,Ilin N.V.,Mareev E.A.,&Chilingarian A.A..(2021).Characteristic Features of the Clouds Producing Thunderstorm Ground Enhancements.Journal of Geophysical Research: Atmospheres,126(9).
MLA	Svechnikova E.K.,et al."Characteristic Features of the Clouds Producing Thunderstorm Ground Enhancements".Journal of Geophysical Research: Atmospheres 126.9(2021).