干旱区生态环境知识资源中心(Arid): Dry deposition of dust particles during medium- and high-level dust storms to a forest canopy in a semi-arid region

Arid

DOI	10.1016/j.apr.2021.101058
	Dry deposition of dust particles during medium- and high-level dust storms to a forest canopy in a semi-arid region
	Krasovitov, Boris; Fominykh, Andrew; Levy, Avi; Kleeorin, Natan; Katra, Itzhak
通讯作者	Krasovitov, B (corresponding author), Ben Gurion Univ Negev, Dept Mech Engn, Pearlstone Ctr Aeronaut Engn Studies, POB 653, IL-8410501 Beer Sheva, Israel.
来源期刊	ATMOSPHERIC POLLUTION RESEARCH
ISSN	1309-1042
出版年	2021
卷号	12 期号:5
英文摘要	In the present study the impact of forest canopy on the spatial distribution of PM10 concentration during dust events in a region, which is subjected to frequent occurrences such as dust storms is investigated. The developed two-dimensional model is based on the application of theory of turbulent diffusion in the forest canopy in conjunction with model of dust particles deposition to vegetation elements. The leaf area density (LAD) distribution with height as well as dust particle size distribution are taken into account. The initial wind velocity profiles on the windward side of the forest were fitted from data obtained in field measurements in the studied region. The resulted dust transport in the forest canopy was validated by comparison of theoretical results with the empirical data in the studied region. Using the suggested model, we analyzed the evolution of wind velocity profiles in and above the forest canopy as well as the process of dry deposition of PM to vegetation elements. Numerical calculations performed using the developed model showed that in dust storms, PM10 concentrations at the leeward side of the forest are reduced by approximate to 16-18% depending on dust storm level. We also found that inside the canopy the ratio of PM10 concentrations between the points along the studied transect and windward side (not affected by the forest) is higher, the higher the level of the dust storm. Our model results of the atmospheric PM distribution show fairly good agreement with the data of the field measurements.
英文关键词	Turbulent diffusion Dust particles Forest canopy Dry deposition Atmospheric boundary layer
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000663150000002
WOS关键词	VEGETATION COLLECTION EFFICIENCY ; LARGE-EDDY SIMULATION ; LEAF-AREA DENSITY ; ULTRAFINE PARTICLES ; PARTICULATE MATTER ; DESERT DUST ; TURBULENCE ; WIND ; TRANSPORT ; MODEL
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349654
作者单位	[Krasovitov, Boris; Fominykh, Andrew; Levy, Avi; Kleeorin, Natan] Ben Gurion Univ Negev, Dept Mech Engn, Pearlstone Ctr Aeronaut Engn Studies, POB 653, IL-8410501 Beer Sheva, Israel; [Katra, Itzhak] Ben Gurion Univ Negev, Dept Geog & Environm Dev, POB 653, IL-8410501 Beer Sheva, Israel
推荐引用方式 GB/T 7714	Krasovitov, Boris,Fominykh, Andrew,Levy, Avi,et al. Dry deposition of dust particles during medium- and high-level dust storms to a forest canopy in a semi-arid region[J]. Ben-Gurion University of the Negev,2021,12(5).
APA	Krasovitov, Boris,Fominykh, Andrew,Levy, Avi,Kleeorin, Natan,&Katra, Itzhak.(2021).Dry deposition of dust particles during medium- and high-level dust storms to a forest canopy in a semi-arid region.ATMOSPHERIC POLLUTION RESEARCH,12(5).
MLA	Krasovitov, Boris,et al."Dry deposition of dust particles during medium- and high-level dust storms to a forest canopy in a semi-arid region".ATMOSPHERIC POLLUTION RESEARCH 12.5(2021).