DOI: 10.1016/j.atmosenv.2015.08.079
Scopus记录号: 2-s2.0-84942514164
论文题名: Study of aerosol hygroscopic events over the Cabauw experimental site for atmospheric research (CESAR) using the multi-wavelength Raman lidar Caeli
作者: Fernández A ; J ; , Apituley A ; , Veselovskii I ; , Suvorina A ; , Henzing J ; , Pujadas M ; , Artíñano B
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 120 起始页码: 484
结束页码: 498
语种: 英语
英文关键词: Aerosol
; Hygroscopicity
; Lidar
; Microphysical properties
; Optical properties
Scopus关键词: Aerosols
; Atmospheric humidity
; Atmospheric radiation
; Backscattering
; Climatology
; Optical properties
; Refractive index
; Aerosol optical property
; Aerosol radiative forcing
; Atmospheric research
; Backscatter coefficients
; Humidity conditions
; Hygroscopicity
; Intensive parameters
; Microphysical property
; Optical radar
; aerosol property
; backscatter
; hygroscopicity
; lidar
; optical property
; particle size
; radiative forcing
; relative humidity
; water vapor
; wavelength
; aerosol
; algorithm
; Article
; boundary layer
; humidity
; Monte Carlo method
; particle size
; photometry
; priority journal
; radiative forcing
; refraction index
; temperature
; water vapor
; wettability
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: This article presents a study of aerosol optical and microphysical properties under different relative humidity (RH) but well mixed layer conditions using optical and microphysical aerosol properties from multi-wavelength (MW) Raman lidar and in-situ aerosol observations collected at the Cabauw Experimental Site for Atmospheric Research (CESAR). Two hygroscopic events are described through 3 backscatter (β) and 2 extinction (α) coefficients which in turn provide intensive parameters such as the backscatter-related Ångström exponent (åβ) and the lidar ratio (LR). Along with it, profiles of RH were inferred from Raman lidar observations and therefore, as a result of varying humidity conditions, a shift on the aerosol optical properties can be described. Thus, it is observed that as RH increases, aerosols uptake water vapour, augment their size and consequently the åβ diminishes whereas the LR increases. The enhancement factor based on the backscatter coefficient at 532 nm, which characterizes the aerosol from hygroscopic standpoint, is also estimated. Finally, microphysical properties that are necessary for aerosol radiative forcing estimates - such as volume, effective radii, refractive index and size distribution, all vertically resolved - are retrieved using the inversion with regularization. Using this method, two hygroscopic events are described in detail. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81470
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Research Centre for Energy, Environment and Technology CIEMAT, Madrid, Spain; Royal Netherlands Meteorological Institute KNMI, P.O. Box 201, De Bilt, Netherlands; Physics Instrumentation Center, Troitsk, Moscow Region, Russian Federation; Netherlands Organization for Applied Scientific Research TNO, Princetonlaan, 6, Utrecht, Netherlands
Recommended Citation:
Fernández A,J,, Apituley A,et al. Study of aerosol hygroscopic events over the Cabauw experimental site for atmospheric research (CESAR) using the multi-wavelength Raman lidar Caeli[J]. Atmospheric Environment,2015-01-01,120