DOI: 10.1016/j.atmosenv.2014.05.079
Scopus记录号: 2-s2.0-84901982833
论文题名: Sensitivity of air quality to potential future climate change and emissions in the United States and major cities
作者: Trail M ; , Tsimpidi A ; P ; , Liu P ; , Tsigaridis K ; , Rudokas J ; , Miller P ; , Nenes A ; , Hu Y ; , Russell A ; G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 552
结束页码: 563
语种: 英语
英文关键词: Air quality
; Climate change
; CMAQ
; Downscaling
; Projecting emissions
; Sensitivity
Scopus关键词: Air quality
; Computer simulation
; Mixing
; Weather forecasting
; CMAQ
; Community multi-scale air qualities
; Decoupled methods
; Down-scaling
; Nitrate concentration
; Point source emissions
; Reduced frequency
; Sensitivity
; Climate change
; air quality
; atmospheric modeling
; climate change
; climate prediction
; downscaling
; emission inventory
; future prospect
; mixing ratio
; nitrogen oxides
; ozone
; particulate matter
; point source
; sensitivity analysis
; sulfur dioxide
; urban atmosphere
; air pollutant
; air quality
; article
; city
; climate change
; climate penalty
; futurology
; global climate
; greenhouse gas
; particulate matter
; priority journal
; titrimetry
; United States
; 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: Simulated present and future air quality is compared for the years 2006-2010 and 2048-2052 over the contiguous United States (CONUS) using the Community Multi-scale Air Quality (CMAQ) model. Regionally downscaled present and future climate results are developed using GISS and the Weather Research Forecasting (WRF) model. Present and future emissions are estimated using MARKAL 9R model. O3 and PM2.5 sensitivities to precursor emissions for the years 2010 and 2050 are calculated using CMAQ-DDM (Direct Decoupled Method). We find major improvements in future U.S. air quality including generally decreased MDA8 (maximum daily 8-hr average O3) mixing ratios and PM2.5 concentrations and reduced frequency of NAAQS O3 standard exceedances in most major U.S. cities. The Eastern and Pacific U.S. experience the largest reductions in summertime seasonal average MDA8 (up to 12ppb) with localized decreases in the 4th highest MDA8 of the year, decreasing by up to 25ppb. Results from a Climate Penalty (CP) scenario isolate the impact of climate change on air quality and show that future climate change tends to increase O3 mixing ratios in some regions of the U.S., with climate change causing increases of over 10ppb in the annual 4th highest MDA8 in Los Angeles. Seasonal average PM2.5 decreases (2-4μgm-3) over the Eastern U.S. are accounted for by decreases in sulfate and nitrate concentrations resulting from reduced mobile and point source emissions of NOx and SOx. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81032
Appears in Collections: 气候变化事实与影响
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作者单位: School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States; School of Chemical and Biomolecular Engineering, Georgia Institute Technology, Atlanta, GA 30332, United States; Center for Climate Systems Research, Columbia University, New York, NY 10025, United States; NASA Goddard Institute for Space Studies, New York, NY 10025, United States; Northeast States for Coordinated Air Use Management, Boston, MA 02111, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, United States
Recommended Citation:
Trail M,, Tsimpidi A,P,et al. Sensitivity of air quality to potential future climate change and emissions in the United States and major cities[J]. Atmospheric Environment,2014-01-01,94