干旱区生态环境知识资源中心(Arid): Vertical Turbulent Dust-Aerosol Fluxes

Arid

DOI	10.1134/S000143382105008X
	Vertical Turbulent Dust-Aerosol Fluxes
	Karpov, A., V; Gorchakov, G., I; Gushchin, R. A.; Datsenko, O., I
通讯作者	Karpov, AV (corresponding author), Russian Acad Sci, Obukhov Inst Atmospher Phys, Moscow 119017, Russia.
来源期刊	IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS
ISSN	0001-4338
EISSN	1555-628X
出版年	2021
卷号	57 期号:5 页码:495-503
英文摘要	Vertical turbulent dust-aerosol fluxes over a desertificated area in Astrakhan oblast under almost quasicontinuous saltation conditions have been calculated based on measurements (with a resolution of 1 s) of fluctuations in aerosol-particle concentrations and the vertical wind velocity component. It is shown that the time variability of the density of vertical turbulent dust-aerosol fluxes within a scale range of 30 s to 1 h is determined by convectively caused variations in both horizontal and vertical wind velocity components in the atmospheric surface layer. The normalized turbulent flux or the rate of dust-aerosol removal reaches 4-5 cm/s. The daily variations in vertical turbulent aerosol fluxes are in agreement with those in turbulent heat fluxes. Particle-size dependences of the mass turbulent dust-aerosol flux have been obtained. The method of estimating low-frequency variations in the density of turbulent dust-aerosol fluxes over a desertificated area has been proposed based on measurement data on the wind velocity components and the saltation threshold velocity.
英文关键词	desertification wind-sand flux dust-aerosol emission turbulent aerosol flux convection aerosol removal rate turbulent heat flux mass aerosol flux
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000715824300006
WOS关键词	HORQIN SANDY LAND ; SIZE DISTRIBUTION ; EMISSION ; TRANSPORT ; DISTRIBUTIONS ; RESUSPENSION ; AREA
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/2XILL650/367933
作者单位	[Karpov, A., V; Gorchakov, G., I; Gushchin, R. A.; Datsenko, O., I] Russian Acad Sci, Obukhov Inst Atmospher Phys, Moscow 119017, Russia; [Gushchin, R. A.; Datsenko, O., I] MIREA Russian Technol Univ, Moscow 119454, Russia
推荐引用方式 GB/T 7714	Karpov, A., V,Gorchakov, G., I,Gushchin, R. A.,et al. Vertical Turbulent Dust-Aerosol Fluxes[J],2021,57(5):495-503.
APA	Karpov, A., V,Gorchakov, G., I,Gushchin, R. A.,&Datsenko, O., I.(2021).Vertical Turbulent Dust-Aerosol Fluxes.IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS,57(5),495-503.
MLA	Karpov, A., V,et al."Vertical Turbulent Dust-Aerosol Fluxes".IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS 57.5(2021):495-503.