干旱区生态环境知识资源中心(Arid): Charges of individual sand grains in natural windblown sand fluxes

Arid

DOI	10.1016/j.aeolia.2021.100743
	Charges of individual sand grains in natural windblown sand fluxes
	Liu, Yakui; Xie, Li; Ma, Qiang; Li, Junjie; Zhou, Jin
通讯作者	Xie, L ; Zhou, J (corresponding author), Lanzhou Univ, Attached Minist Educ, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Gansu, Peoples R China.
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2021
卷号	53
英文摘要	The charge-per-mass of sand grains in natural windblown sand fluxes is important for understanding its contribution to atmospheric electric field and its effect on dust transport in atmosphere and the evolution of windblown sand fluxes. In many existing studies, the charge-per-mass of sand grains were usually averaged values, namely, the total charges divided by total mass of sand sample collected in a sand grain trap. In this paper, by conducting a field site experiment in Tengger Desert in western China, the charge-per-mass of individual grains of natural near-surface windblown sand fluxes are measured for the first time. A method is established for this purpose, which includes a well-designed silicone oil box used to trap sand grains and the grain trajectory imaging system for the retrieval of sand grains' charges and sizes. The charge-per-mass of more than 900 grains are measured individually with good accuracy, from which the probability distributions of both charge-per-mass and grain size are obtained. The probability distribution of charge-per-mass of individual sand grains may provide more accurate estimations of charge distribution in natural windblown sand fluxes. On the other hand, these results of charge-per-mass are helpful for the validation of existing theories of charging mechanism of windblown sand fluxes.
英文关键词	Charge-per-mass Individual sand grains Field measurement Natural windblown sand flux
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000700582000003
WOS关键词	ELECTRICAL-PROPERTIES ; ELECTRIFICATION ; PARTICLES ; HUMIDITY ; CLOUDS ; FORCE
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362338
作者单位	[Liu, Yakui; Xie, Li; Ma, Qiang; Li, Junjie; Zhou, Jin] Lanzhou Univ, Attached Minist Educ, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Gansu, Peoples R China; [Liu, Yakui; Xie, Li; Ma, Qiang; Li, Junjie; Zhou, Jin] Lanzhou Univ, Coll Civil Engn & Mech, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yakui,Xie, Li,Ma, Qiang,et al. Charges of individual sand grains in natural windblown sand fluxes[J]. 兰州大学,2021,53.
APA	Liu, Yakui,Xie, Li,Ma, Qiang,Li, Junjie,&Zhou, Jin.(2021).Charges of individual sand grains in natural windblown sand fluxes.AEOLIAN RESEARCH,53.
MLA	Liu, Yakui,et al."Charges of individual sand grains in natural windblown sand fluxes".AEOLIAN RESEARCH 53(2021).