干旱区生态环境知识资源中心(Arid): Vertical Profiles of the Saltating Particle Concentration on a Desertified Area

Arid

DOI	10.1134/S1028334X21020069
	Vertical Profiles of the Saltating Particle Concentration on a Desertified Area
	Gorchakov, G. I.; Karpov, A. V.; Gushchin, R. A.; Datsenko, O. I.; Buntov, D. V.
通讯作者	Gorchakov, GI (corresponding author), Russian Acad Sci, Obukhov Inst Atmospher Phys, Moscow 119017, Russia.
来源期刊	DOKLADY EARTH SCIENCES
ISSN	1028-334X
EISSN	1531-8354
出版年	2021
卷号	496 期号:2 页码:119-124
英文摘要	Vertical profiles of the total saltating particle concentration have been constructed for a range of wind speed changes in the surface layer of the atmosphere from 5.5 to 10.5 m/s, and the profiles of the concentration of aleurite (silt) and sandy particles according to measurements in a desertified area in the Astrakhan Region under conditions of quasi-continuous saltation have been found. In the saltation layer from 0 to 15 cm, the concentration of silty particles with a size of 47 mu m decreases two times more slowly than the concentration of sand particles with a size of 156 mu m. In the lower saltation layer about 9 cm thick, the logarithmic gradient of the total concentration does not depend on the wind speed, and in the upper saltation layer it changes from -0.40 to -0.21 cm(-1) with an increase in the wind speed in the atmospheric surface layer from 5.5 to 10.5 m/s. It is shown that, in contrast to the lower saltation layer at heights of 11 and 15 cm, the dependences of the particle concentration on the wind speed turned out to be nonlinear. For the lower and upper layers of saltation, approximations of the concentration of saltation particles are obtained as a function of height, wind speed, and the threshold speed of saltation.
英文关键词	desertification saltation saltating particle concertation sand fraction (mode) aleurite (silt) fraction vertical concentration profile
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000627785600005
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349951
作者单位	[Gorchakov, G. I.; Karpov, A. V.; Gushchin, R. A.; Datsenko, O. I.; Buntov, D. V.] Russian Acad Sci, Obukhov Inst Atmospher Phys, Moscow 119017, Russia; [Gushchin, R. A.; Datsenko, O. I.] Russian Technol Univ MIREA, Moscow 119454, Russia
推荐引用方式 GB/T 7714	Gorchakov, G. I.,Karpov, A. V.,Gushchin, R. A.,et al. Vertical Profiles of the Saltating Particle Concentration on a Desertified Area[J],2021,496(2):119-124.
APA	Gorchakov, G. I.,Karpov, A. V.,Gushchin, R. A.,Datsenko, O. I.,&Buntov, D. V..(2021).Vertical Profiles of the Saltating Particle Concentration on a Desertified Area.DOKLADY EARTH SCIENCES,496(2),119-124.
MLA	Gorchakov, G. I.,et al."Vertical Profiles of the Saltating Particle Concentration on a Desertified Area".DOKLADY EARTH SCIENCES 496.2(2021):119-124.