DOI: 10.1016/j.atmosenv.2013.09.055
Scopus记录号: 2-s2.0-84887528218
论文题名: Implementation of a high-resolution Source-Oriented WRF/Chem model at the Port of Oakland
作者: Joe D ; K ; , Zhang H ; , DeNero S ; P ; , Lee H ; -H ; , Chen S ; -H ; , McDonald B ; C ; , Harley R ; A ; , Kleeman M ; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 82 起始页码: 351
结束页码: 363
语种: 英语
英文关键词: Elemental carbon
; High resolution
; LES
; Port of Oakland
; Source-oriented
; WRF/Chem
Scopus关键词: Carbon
; Fuels
; Image resolution
; Large eddy simulation
; Roads and streets
; Ships
; Elemental carbon
; High resolution
; LES
; Port of Oakland
; Source-oriented
; WRF/Chem
; Computer simulation
; anthropogenic source
; atmospheric pollution
; complex terrain
; concentration (composition)
; diesel engine
; environmental modeling
; large eddy simulation
; mixing
; particulate matter
; pollution effect
; pollution exposure
; port
; spatial resolution
; traffic congestion
; turbulent mixing
; air pollutant
; air pollution
; article
; calculation
; cardiovascular effect
; combustion
; dry deposition
; forecasting
; high resolution source oriented weather research and forecasting coupled with chemistry model and
; measurement
; model
; neighborhood
; particle size
; particulate matter
; population exposure
; prediction
; priority journal
; simulation
; United States
; water content
; weather
; wettability
; California
; Oakland
; 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: A version of the Source-Oriented WRF/Chem (SOWC) model with 250m spatial resolution (SOWC-HR) was developed and implemented to perform high resolution simulations over the community of Oakland, California, during March 2010. A multiscale set of nested domains was used to predict contributions to airborne particulate elemental carbon (EC) concentrations from ships, trains, and on-road diesel trucks. The final domain at 250m resolution used Large Eddy Simulation (LES) to predict turbulent mixing at scales where traditional first order closure models are not valid. Results of the high resolution simulation with the nested LES (HR case) and without the nested LES (non-HR case) were compared to speciated particulate matter (PM) measurements and source contributions calculated using Positive Matrix Factorization (PMF). The PMF results showed that on-road diesel traffic was a major EC contributor, a result consistent with previous studies for Oakland. The average EC concentration predicted at the site by the SOWC-HR model was 0.42μgm-3, with source contributions of 0.22μgm-3 from on-road diesel, 0.05μgm-3 from ship fuel combustion, 0.08μgm-3 from trains, and 0.09μgm-3 from other sources. Both simulation cases predicted similar total EC concentrations and source contributions at the sampling sites, but more substantial differences were predicted at other locations in the study region. The HR case predicted higher average and maximum hourly EC contributions from all sources compared the non-HR case. The greatest relative increase of maximum hourly EC was seen in the on-road diesel source, which increased by nearly a factor of 2 (3.74μgm-3 to 6.69μgm-3) when spatial resolution was increased from 1km to 250m. The SOWC-HR model predicted greater population-weighted EC concentrations from all sources when compared to the SOWC model without HR. The increase in period-averaged EC exposure from each source ranged from+1% to+17%, while the increase in maximum hourly EC exposure from each source ranged from+9% to+32%. This evaluation shows that resolving neighborhood scales through the representation of local mixing phenomena can significantly impact pollutant concentration predictions, especially when examining extreme exposures in a densely populated area with many sources and complex terrain. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81300
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil and Environmental Engineering, University of California, Davis, One Shields Avenue, Davis, CA, United States; Department of Land, Air, and Water Resources, University of California, Davis, One Shields Avenue, Davis, CA, United States; Department of Civil and Environmental Engineering, University of California, Berkeley, United States
Recommended Citation:
Joe D,K,, Zhang H,et al. Implementation of a high-resolution Source-Oriented WRF/Chem model at the Port of Oakland[J]. Atmospheric Environment,2014-01-01,82