Knowledge Resource Center for Ecological Environment in Arid Area
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
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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). |
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