干旱区生态环境知识资源中心(Arid): Dusty Plasma of a Wind-Sand Flux in Desertified Areas

Arid

DOI	10.1134/S000143382205005X
	Dusty Plasma of a Wind-Sand Flux in Desertified Areas
	Gorchakov, G., I; Kopeikin, V. M.; Karpov, A., V; Gushchin, R. A.; Datsenko, O., I; Buntov, D., V
通讯作者	Gorchakov, GI
来源期刊	IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS
ISSN	0001-4338
EISSN	1555-628X
出版年	2022
卷号	58 期号:5 页码:466-475
英文摘要	Measurements of electric currents of saltation in the wind-sand flux and currents caused by the wind transport of dust aerosol particles have been carried out in the desertified territories of Astrakhan oblast and Kalmykia. Empirical distribution functions of the specific charge of saltating particles in a wind-sand flux are presented for the conditions of quasi-continuous and intermittent saltation. It is established that the electric charge surface density reaches +25 nC/m(2). It is shown that the local electric field on the surface of the saltating particles can exceed 450 kV/m. An abnormal high electrization mechanism of the wind-sand flux is proposed, including the initiation of high-speed saltation: electric (corona) discharges on the underlying surface, which makes it possible to consider the wind-sand flux a dusty plasma. An analytical model has been developed for the escape of saltating particles from the underlying surface during a corona discharge. It is shown that, when saltation is initiated by a corona discharge, the escape velocity of charged particles can exceed 1 m/s.
英文关键词	desertification electrization of a wind-sand flux electric saltation currents electric currents caused by wind transfer of dust aerosol particles electric currents density of electric charges on the underlying surface local electric field strength specific charge corona discharge dusty plasma of a wind-sand flux initiation of saltation by corona discharges saltating particle escape velocity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000873654000006
WOS关键词	ELECTRIC-FIELD ; SIZE DISTRIBUTION ; AEROSOL ; SALTATION ; PARTICLES ; ALEURITE ; CHARGE ; FORCE
WOS类目	Meteorology & Atmospheric Sciences ; Oceanography
WOS研究方向	Meteorology & Atmospheric Sciences ; Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393250
推荐引用方式 GB/T 7714	Gorchakov, G., I,Kopeikin, V. M.,Karpov, A., V,et al. Dusty Plasma of a Wind-Sand Flux in Desertified Areas[J],2022,58(5):466-475.
APA	Gorchakov, G., I,Kopeikin, V. M.,Karpov, A., V,Gushchin, R. A.,Datsenko, O., I,&Buntov, D., V.(2022).Dusty Plasma of a Wind-Sand Flux in Desertified Areas.IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS,58(5),466-475.
MLA	Gorchakov, G., I,et al."Dusty Plasma of a Wind-Sand Flux in Desertified Areas".IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS 58.5(2022):466-475.