Arid
DOI10.1016/j.aeolia.2015.12.004
Modeling of particulate matter transport in atmospheric boundary layer following dust emission from source areas
Katra, Itzhak1; Elperin, Tov2; Fominykh, Andrew2; Krasovitov, Boris2; Yizhaq, Hezi3,4
通讯作者Katra, Itzhak
来源期刊AEOLIAN RESEARCH
ISSN1875-9637
EISSN2212-1684
出版年2016
卷号20页码:147-156
英文摘要

A two-dimensional model for particulate matter (PM) dispersion due to dust emission from soils is presented. Field experiments were performed at a dust source site (Negev loess soil) with a portable boundary layer wind tunnel to determine the emitted PM fluxes for different wind speeds and varying soil conditions. The numerical model is formulated using parameterizations based on the aeolian experiments. The wind velocity profiles used in the simulations were fitted from data obtained in field measurements. Size distribution of the emitted dust particles in the numerical simulations was taken into account using a Monte Carlo method. The PM concentration distributions at a distance of several kilometers from the dust source under specific shear velocities and PM fluxes from the soil were determined numerically by solving advection diffusion equation. The obtained PM10 concentrations under typical wind and soil conditions are supported by PM data recorded over time in a standard environmental monitoring station. The model enhances our capacity of quantification of dust processes to support climate models as well as health risk assessment. (C) 2016 Elsevier B.V. All rights reserved.


英文关键词Dust emission Aeolian processes Portable wind tunnel Wind mast PM10 Advection-diffusion equation
类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000372381500014
WOS关键词FIELD VERIFICATION ; WIND EROSION ; TUNNEL ; ROUGHNESS ; MECHANISMS ; SURFACE ; DESERT ; FLUX
WOS类目Geography, Physical
WOS研究方向Physical Geography
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/2XILL650/191000
作者单位1.Ben Gurion Univ Negev, Dept Geog & Environm Dev, POB 653, IL-84105 Beer Sheva, Israel;
2.Ben Gurion Univ Negev, Dept Mech Engn, Pearlstone Ctr Aeronaut Engn Studies, POB 653, IL-84105 Beer Sheva, Israel;
3.Ben Gurion Univ Negev, Swiss Inst Dryland Environm & Energy Res, BIDR, Midreshet Ben Gurion, Israel;
4.Tamar Reg Council, Dead Sea & Arava Sci Ctr, Haifa, Israel
推荐引用方式
GB/T 7714
Katra, Itzhak,Elperin, Tov,Fominykh, Andrew,et al. Modeling of particulate matter transport in atmospheric boundary layer following dust emission from source areas[J]. Ben-Gurion University of the Negev,2016,20:147-156.
APA Katra, Itzhak,Elperin, Tov,Fominykh, Andrew,Krasovitov, Boris,&Yizhaq, Hezi.(2016).Modeling of particulate matter transport in atmospheric boundary layer following dust emission from source areas.AEOLIAN RESEARCH,20,147-156.
MLA Katra, Itzhak,et al."Modeling of particulate matter transport in atmospheric boundary layer following dust emission from source areas".AEOLIAN RESEARCH 20(2016):147-156.
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