Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.aeolia.2017.04.002 |
Suspended dust particle characteristics during an sandstorm on 29 February 2008 in Minqin area, China | |
Zhan, KeJie1,2; Liu, ShiZeng1; Yang, ZiHui1; Fang, ETian1; Zhou, LanPing1; Wang, QiangQiang1; Guo, ShuJiang1; Zhang, JianHui1; Huang, Ning2 | |
通讯作者 | Zhan, KeJie |
来源期刊 | AEOLIAN RESEARCH |
ISSN | 1875-9637 |
EISSN | 2212-1684 |
出版年 | 2017 |
卷号 | 25页码:79-86 |
英文摘要 | Aeolian dust is one of the main aerosols in the troposphere, and plays an important role in the Earth’s climate system. In this study, detailed meteorological conditions and dust particle diameters were measured at three sites with different landscape characteristics in the Minqin oasis area of northwest China, on 29 February 2008. We show that as dust storms progressed through the desert into the oasis, variation in the character of the underlying land surface not only influenced the wind profile by modifying the frictional velocity of air (U-*), aerodynamic roughness length (Z(0)), horizontal sediment flux, and dust concentration of the near surface sublayer (1-49 m), but it also changed the vertical structure of the aeolian sediment transport pattern. The particle size frequency distributions at three distinct sites were all unimodal, comprising a large number of aeolian dust particles with sizes less than 63 mu m (more than 65%). During transport, dust particle populations shifted to smaller sizes. Clearly, the influence of landform, windbreaks, and vegetation cover on horizontal sand-dust flux decreased with height as well as increasing particle size, with smaller aeolian particles being more easily captured by windbreaks, and vegetation. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Atmospheric dust Particle size distribution Sediment flux Aeolian transport |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000402214000007 |
WOS关键词 | SIZE CHARACTERISTICS ; STORMS |
WOS类目 | Geography, Physical |
WOS研究方向 | Physical Geography |
来源机构 | 兰州大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197054 |
作者单位 | 1.Gansu Minqin Natl Stn Desert Steppe Ecosyst Studi, Wuwei 733000, Gansu, Peoples R China; 2.Lanzhou Univ, Dept Mech, Minist Educ, Key Lab Mech Western Disaster & Environm China, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Zhan, KeJie,Liu, ShiZeng,Yang, ZiHui,et al. Suspended dust particle characteristics during an sandstorm on 29 February 2008 in Minqin area, China[J]. 兰州大学,2017,25:79-86. |
APA | Zhan, KeJie.,Liu, ShiZeng.,Yang, ZiHui.,Fang, ETian.,Zhou, LanPing.,...&Huang, Ning.(2017).Suspended dust particle characteristics during an sandstorm on 29 February 2008 in Minqin area, China.AEOLIAN RESEARCH,25,79-86. |
MLA | Zhan, KeJie,et al."Suspended dust particle characteristics during an sandstorm on 29 February 2008 in Minqin area, China".AEOLIAN RESEARCH 25(2017):79-86. |
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