DOI: 10.1016/j.atmosenv.2014.06.020
Scopus记录号: 2-s2.0-84904118062
论文题名: Assessment of NOx and O3 forecasting performances in the U.S. National Air Quality Forecasting Capability before and after the 2012 major emissions updates
作者: Pan L ; , Tong D ; , Lee P ; , Kim H ; -C ; , Chai T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 95 起始页码: 610
结束页码: 619
语种: 英语
英文关键词: CMAQ
; Emissions projection
; NAQFC
Scopus关键词: Air quality
; Emission control
; Air quality forecasting
; Air quality systems
; CMAQ
; Forecasting performance
; Ground observations
; NAQFC
; National emissions inventories
; Spatial distribution patterns
; Forecasting
; nitrogen oxide
; ozone
; air quality
; atmospheric pollution
; emission inventory
; GOME
; nitrogen oxides
; ozone
; satellite data
; volatile organic compound
; air quality
; article
; boundary layer
; controlled study
; dry deposition
; forecasting
; geographic distribution
; land use
; measurement
; meteorology
; monitoring
; performance
; prediction
; priority journal
; reduction
; rural area
; simulation
; suburban area
; surface property
; 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英文摘要: In this study, we address outdated emissions inventory problems in air quality forecasting systems. The National Emissions Inventory for NOx from area and mobile sources is projected from 2005 to 2012 and NOx from point sources is projected from 2010 to 2012, in which we find that NOx emissions from area, mobile and point sources reduce by 8.1%, 37.8% and 4.1%, respectively. The majority of the NOx emissions reduction occurs in megacities over the CONtiguous U.S. (CONUS), in which the spatial distribution pattern is generally supported by the NO2 column result retrieved from the GOME-2 satellite data. The CMAQ-predicted NOx and O3 concentrations using updated NOx emissions were then compared to Air Quality System (AQS) ground observations in order to evaluate the updated NOx emissions inventory. The comparison showed an improvement in NOx and O3 predictions over the CONUS. The NOx bias, in July 2011, for urban, suburban and rural land-use types was reduced by 2.34ppb, 2.09ppb and 0.57ppb, respectively. Meanwhile, the O3 bias is reduced by 0.92ppb, 1.26ppb and 1.87ppb, respectively. However, problems remain in CMAQ for NOx and O3 simulations despite undertaking this emissions adjustment. For example, the O3 overestimation in CMAQ during the daytime over the CONUS decreases when the NOx underestimation increases, suggesting that in addition to the NOx emissions inventory, further study of VOC emissions, NOx chemical and physical mechanisms as well as meteorology parameters in the NAQFC is necessary. © 2014 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81134
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: NOAA Air Resources Laboratory (ARL), NOAA center for Weather and Climate Prediction, 5830 University Research Court, College Park, MD 20740, United States; Cooperative Institute for Climate and Satellites, University of Maryland, College Park, MD 20740, United States; Center for Spatial Information Science and Systems (CSISS), George Mason University, Fairfax, VA 22030, United States
Recommended Citation:
Pan L,, Tong D,, Lee P,et al. Assessment of NOx and O3 forecasting performances in the U.S. National Air Quality Forecasting Capability before and after the 2012 major emissions updates[J]. Atmospheric Environment,2014-01-01,95