DOI: 10.1016/j.atmosenv.2015.01.043
Scopus记录号: 2-s2.0-84921860894
论文题名: Setting threshold values of particle sizes for determination of the appropriate dispersion/deposition model during various atmospheric stability conditions
作者: Mandel A ; , Stern E ; , Ullmann A ; , Brauner N
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 105 起始页码: 181
结束页码: 190
语种: 英语
英文关键词: Atmospheric diffusion
; Atmospheric stability
; Gravitational settling
; Risk assessment
Scopus关键词: Atmospheric thermodynamics
; Particle size
; Risk assessment
; Stability
; Atmospheric diffusion
; Atmospheric dispersion
; Atmospheric stability
; Gravitational settlings
; Meteorological input
; Particle diameters
; Stability condition
; Turbulent dispersion
; Atmospheric movements
; climate conditions
; density
; dispersion
; gravity field
; particle size
; rural area
; turbulence
; wind field
; Article
; atmospheric deposition
; atmospheric diffusion
; atmospheric dispersion
; comparative study
; dispersion
; fallout
; gravity
; mathematical parameters
; meteorological phenomena
; meteorology
; particle size
; plume
; priority journal
; risk assessment
; wind
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: An approach is suggested for the estimation of air borne critical particle diameter that determines the dominant removal mechanism from atmospheric dispersion of plumes for six main Pasquill-Gifford meteorological stability conditions. A methodology was developed to apply in rural regions since relevant meteorological input data have been developed mainly for such areas. Our critical diameter methodology refines the commonly accepted "50 micron diameter", considered as a border value above which gravitational settling is dominant and below which, turbulent dispersion is expected to prevail. The interrelationships of particle release heights and downwind deposition distances (for various stability conditions) as well as particle sizes and densities are implemented in the turbulent dispersion and gravitational settling estimations, in order to determine the dominant mechanism for particles reaching the ground following their releases from various heights. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81963
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: School of Mechanical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel; Center for Risk Analysis, Kiryat Ono, Israel
Recommended Citation:
Mandel A,, Stern E,, Ullmann A,et al. Setting threshold values of particle sizes for determination of the appropriate dispersion/deposition model during various atmospheric stability conditions[J]. Atmospheric Environment,2015-01-01,105