Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-2119-2018 |
Optical and microphysical properties of natural mineral dust and anthropogenic soil dust near dust source regions over northwestern China | |
Wang, Xin1; Wen, Hui1; Shi, Jinsen1; Bi, Jianrong1; Huang, Zhongwei1; Zhang, Beidou1; Zhou, Tian1; Fu, Kaiqi1; Chen, Quanliang2; Xin, Jinyuan3 | |
2018-02-14 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:3页码:2119-2138 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Mineral dust aerosols (MDs) not only influence the climate by scattering and absorbing solar radiation but also modify cloud properties and change the ecosystem. From 3 April to 16 May 2014, a ground-based mobile laboratory was deployed to measure the optical and microphysical properties of MDs near dust source regions in Wuwei, Zhangye, and Dunhuang (in chronological order) along the Hexi Corridor over northwestern China. Throughout this dust campaign, the hourly averaged (+/- standard deviation) aerosol scattering coefficients (sigma(sp), 550 nm) of the particulates with aerodynamic diameters less than 2.5 mu m (PM2.5) at these three sites were sequentially 101.5 +/- 36.8, 182.2 +/- 433.1, and 54.0 +/- 32.0Mm(-1). Correspondingly, the absorption coefficients (sigma(ap), 637 nm) were 9.7 +/- 6.1, 6.0 +/- 4.6, and 2.3 +/- 0.9Mm(-1); single-scattering albedos (omega, 637 nm) were 0.902 +/- 0.025, 0.931 +/- 0.037, and 0.949 +/- 0.020; and scattering angstrom ngstrom exponents (angstrom(sp), 450-700 nm) of PM2.5 were 1.28 +/- 0.27, 0.77 +/- 0.51, and 0.52 +/- 0.31. During a severe dust storm in Zhangye (i.e., from 23 to 25 April), the highest values of (2.5)(sigma sp) sp (similar to 5074Mm(-1)) backscattering coefficient (sigma(2.5)(bsp) , similar to 522Mm(-1)), and omega 637 (similar to 0.993) and the lowest values of backscattering fraction (b(2.5), similar to 0.101) at 550 nm and angstrom(2.5)(sp) sp (similar to -0.046) at 450-700 nm, with peak values of aerosol number size distribution (appearing at the particle diameter range of 1-3 mu m), exhibited that the atmospheric aerosols were dominated by coarse-mode dust aerosols. It is hypothesized that the relatively higher values of mass scattering efficiency during floating dust episodes in Wuwei and Zhangye are attributed to the anthropogenic soil dust produced by agricultural cultivations. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425160800002 |
WOS关键词 | AEROSOL LIGHT-ABSORPTION ; SURFACE SOLAR-RADIATION ; SAHARAN DUST ; CHEMICAL-COMPOSITION ; BLACK CARBON ; ASIAN DUST ; CLIMATE ; SCATTERING ; DESERT ; STORM |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30622 |
专题 | 地球科学 |
作者单位 | 1.Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Gansu, Peoples R China; 2.Chengdu Univ Informat Technol, Coll Atmospher Sci, Plateau Atmospher & Environm Lab Sichuan Prov, Chengdu 610225, Sichuan, Peoples R China; 3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Xin,Wen, Hui,Shi, Jinsen,et al. Optical and microphysical properties of natural mineral dust and anthropogenic soil dust near dust source regions over northwestern China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(3):2119-2138. |
APA | Wang, Xin.,Wen, Hui.,Shi, Jinsen.,Bi, Jianrong.,Huang, Zhongwei.,...&Xin, Jinyuan.(2018).Optical and microphysical properties of natural mineral dust and anthropogenic soil dust near dust source regions over northwestern China.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(3),2119-2138. |
MLA | Wang, Xin,et al."Optical and microphysical properties of natural mineral dust and anthropogenic soil dust near dust source regions over northwestern China".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.3(2018):2119-2138. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论