DOI: 10.1016/j.atmosenv.2014.11.021
Scopus记录号: 2-s2.0-84910617088
论文题名: Long-term observations of aerosol optical properties at Wuhan, an urban site in Central China
作者: Wang L ; , Gong W ; , Xia X ; , Zhu J ; , Li J ; , Zhu Z
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 101 起始页码: 94
结束页码: 102
语种: 英语
英文关键词: Aerosol optical depth
; Aerosol size distribution
; Central China
; Refractive index
; Single scattering albedo
; Ångström exponent
Scopus关键词: Aerosols
; Atmospheric aerosols
; Fossil fuels
; Refractive index
; Size distribution
; Solar radiation
; Urban growth
; Aerosol optical depths
; Aerosol optical property
; Aerosol size distributions
; Central chinas
; Coarse mode particles
; Complex refractive index
; Long term observations
; Single scattering albedo
; Optical properties
; fossil fuel
; aerosol
; biomass burning
; fossil fuel
; long-term change
; optical depth
; photometer
; refractive index
; size distribution
; urban site
; aerosol
; aerosol optical depth
; albedo
; Article
; autumn
; biomass
; China
; climate change
; controlled study
; dust
; human
; measurement
; optical depth
; photometry
; priority journal
; radiative forcing
; refraction index
; spring
; summer
; winter
; China
; Hubei
; Wuhan
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Aerosol optical properties including aerosol optical depth (AOD), Ångström exponent (α), single scattering albedo (SSA), aerosol size distribution and refractive index at urban Wuhan in Central China are investigated based on the measurements from a CIMEL sun-photometer during 2007-2013. AOD500nm is found to be relatively high all year round and the highest value 1.52 occurs in June 2012 and the lowest (0.57) in November 2012. α shows a significant monthly variation, with the highest value in June 2010 (1.71) and the lowest value (0.78) in April 2012. Analysis of AOD and α frequencies indicate that this region is populated with fine-mode particles. Monthly variations of SSA for total, fine and coarse-mode particles are closely related to the aerosol hygroscopic growth, fossil fuel and biomass burning. The aerosol volume size distributions (bi-modal pattern) show distinct differences in particle radius for different seasons, the radius for fine-mode particles generally increase from spring to summer month, for example, the highest peak is around radius 0.15μm in March, while the peak radius is around 0.25μm in June. Finally, monthly statistics of real and imaginary parts of the complex refractive index are analyzed, the highest averages of real (1.50) and imaginary parts (0.0395) are found in spring and autumn, respectively at wavelength 440-1020nm. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82125
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University, Wuhan, Hubei Province, China; School of Earth Science, China University of Geosciences, Wuhan, Hubei Province, China; Collaborative Innovation Center for Geospatial Technology, Wuhan, China; Laboratory for Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, China; Huazhong University of Science and Technology Wuchang Branch, Wuhan, China
Recommended Citation:
Wang L,, Gong W,, Xia X,et al. Long-term observations of aerosol optical properties at Wuhan, an urban site in Central China[J]. Atmospheric Environment,2015-01-01,101