DOI: 10.1016/j.atmosenv.2015.02.027
Scopus记录号: 2-s2.0-84922625804
论文题名: Influence of air mass origin on aerosol properties at a remote Michigan forest site
作者: VanReken T ; M ; , Mwaniki G ; R ; , Wallace H ; W ; , Pressley S ; N ; , Erickson M ; H ; , Jobson B ; T ; , Lamb B ; K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 107 起始页码: 35
结束页码: 43
语种: 英语
英文关键词: Aerosol
; Hygroscopicity
; Trajectory analysis
Scopus关键词: Atmospheric aerosols
; Atmospheric thermodynamics
; Forestry
; Meteorology
; Particle size
; Particle size analysis
; Aerosol properties
; Anthropogenic influence
; Great Lakes regions
; Hygroscopicity
; Particle number concentration
; Trajectory analysis
; University of Michigan
; Volume concentration
; Aerosols
; water
; aerosol property
; air mass
; anthropogenic effect
; atmosphere-biosphere interaction
; hygroscopicity
; particle size
; size distribution
; sulfate
; trajectory
; aerosol
; air analysis
; Article
; forest
; meteorology
; particle size
; priority journal
; solubility
; United States
; wettability
; Aerosols
; Air Pollution
; Forests
; Lakes
; North America
; Michigan
; United States
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: The northern Great Lakes region of North America is a large, relatively pristine area. To date, there has only been limited study of the atmospheric aerosol in this region. During summer 2009, a detailed characterization of the atmospheric aerosol was conducted at the University of Michigan Biological Station (UMBS) as part of the Community Atmosphere-Biosphere Interactions Experiment (CABINEX). Measurements included particle size distribution, water-soluble composition, and CCN activity. Aerosol properties were strongly dependent on the origin of the air masses reaching the site. For ~60% of the study period, air was transported from sparsely populated regions to the northwest. During these times aerosol loadings were low, with mean number and volume concentrations of 1630cm-3 and 1.91μm3cm-3, respectively. The aerosol during clean periods was dominated by organics, and exhibited low hygroscopicities (mean κ=0.18 at s=0.3%). When air was from more populated regions to the east and south (~29% of the time), aerosol properties reflected a stronger anthropogenic influence, with 85% greater particle number concentrations, 2.5 times greater aerosol volume, six times more sulfate mass, and increased hygroscopicity (mean :=0.24 at s=0.3%). These trends are have the potential to influence forest-atmosphere interactions and should be targeted for future study. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81905
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratory for Atmospheric Research, Dept. of Civil and Environmental Engineering, Washington State University, Pullman, WA, United States; African Centre for Technology Studies, Nairobi, Kenya; Dept. of Civil and Environmental Engineering, Rice University, Houston, TX, United States; Houston Advanced Research Center, The Woodlands, TX, United States
Recommended Citation:
VanReken T,M,, Mwaniki G,et al. Influence of air mass origin on aerosol properties at a remote Michigan forest site[J]. Atmospheric Environment,2015-01-01,107