气候变化领域集成服务门户(CCPortal): Cloud-to-ground lightning discharge indicator in the radio frequency emission of thunderclouds as observed in the Upper Volga region of Russia

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DOI	10.1016/j.atmosres.2021.105559
	Cloud-to-ground lightning discharge indicator in the radio frequency emission of thunderclouds as observed in the Upper Volga region of Russia
	Karashtin A.N.; Shlyugaev Y.V.; Karashtina O.S.
发表日期	2021
ISSN	0169-8095
卷号	256
英文摘要	The results of observations of radio emission from thunderclouds in a wide frequency range with a high temporal resolution carried out in the Upper Volga region near Nizhny Novgorod are compared with the data from worldwide and regional lightning location networks. Two parameters are chosen to characterize the radio emission: root mean square (corresponding to the emission intensity) and kurtosis (to testify to the presence of a pulsed component in the emission) of its distributions at short time intervals. It is shown that the intensity of radio emission as a whole reflects the level of thunderstorm activity at distances up to 50 km from the point of observation. A similar correlation also takes place for the kurtosis of the emission. Comparison with events detected by lightning location networks shows that they are often preceded by a well-defined behavior of the above parameters. The emission begins suddenly with a moderate level of intensity and a high value of kurtosis that lasts from few to more than one hundred of milliseconds. Then the kurtosis decreases permanently with approximately the same intensity of the emission that can correspond to a step leader stage of a lightning discharge. The radio frequency event is ended by a sharp increase in the emission intensity simultaneously with a decrease of the kurtosis to the background level, and exactly the same moment corresponds to a lightning location network event that can be associated with the return stroke of a lightning discharge. It should be mentioned that a number of events from lightning location networks have no such manifestations in the recorded radio emission and vice versa. © 2021 Elsevier B.V.
英文关键词	Cloud-to-ground lightning; HF radio emission; Thunderstorm
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236788
作者单位	Radiophysical Research Institute, Nizhny Novgorod State University, 25/12a Bol'shaya Pecherskaya st., Nizhny Novgorod, Russian Federation; Institute of Applied Physics of Russian Academy of Sciences, 46 Ul'yanova st., Nizhny Novgorod, Russian Federation
推荐引用方式 GB/T 7714	Karashtin A.N.,Shlyugaev Y.V.,Karashtina O.S.. Cloud-to-ground lightning discharge indicator in the radio frequency emission of thunderclouds as observed in the Upper Volga region of Russia[J],2021,256.
APA	Karashtin A.N.,Shlyugaev Y.V.,&Karashtina O.S..(2021).Cloud-to-ground lightning discharge indicator in the radio frequency emission of thunderclouds as observed in the Upper Volga region of Russia.Atmospheric Research,256.
MLA	Karashtin A.N.,et al."Cloud-to-ground lightning discharge indicator in the radio frequency emission of thunderclouds as observed in the Upper Volga region of Russia".Atmospheric Research 256(2021).