HR: 12:08h
AN: A22A-09    [Abstracts]
TI: Effects of Changing Emissions on Ozone and Particulates in the Northeastern United States
AU: * Frost, G J
EM: Gregory.J.Frost@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: McKeen, S
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Trainer, M
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Ryerson, T
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Holloway, J
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Brock, C
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Middlebrook, A
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Wollny, A
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Matthew, B
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Williams, E
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Lerner, B
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Fortin, T
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Sueper, D
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Parrish, D
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Fehsenfeld, F
AF: NOAA Aeronomy Laboratory, 325 Broadway, Mail Stop R/AL4, Boulder, CO 80305-3328 United States
AU: Peckham, S
AF: NOAA Forecast Systems Laboratory, 325 Broadway, Mail Stop R/FS1, Boulder, CO 80305-3328 United States
AU: Grell, G
AF: NOAA Forecast Systems Laboratory, 325 Broadway, Mail Stop R/FS1, Boulder, CO 80305-3328 United States
AU: Peltier, R
AF: Georgia Institute of Technology, Dept of Earth and Atmospheric Sciences, Atlanta, GA 30332 United States
AU: Weber, R
AF: Georgia Institute of Technology, Dept of Earth and Atmospheric Sciences, Atlanta, GA 30332 United States
AU: Quinn, P
AF: NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Mail Stop R/PMEL, Seattle, WA 98115 United States
AU: Bates, T
AF: NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Mail Stop R/PMEL, Seattle, WA 98115 United States
AB: Emissions of nitrogen oxides (NOx) from electric power generation have decreased in recent years due to changes in burner technology and fuels used. Mobile NOx emissions assessments are less certain, since they must account for increases in vehicle miles traveled, changes in the proportion of diesel and gasoline vehicles, and more stringent controls on engines and fuels. The impact of these complicated emission changes on a particular region's air quality must be diagnosed by a combination of observation and model simulation. The New England Air Quality Study - Intercontinental Transport and Chemical Transformation 2004 (NEAQS-ITCT 2004) program provides an opportunity to test the effects of changes in emissions of NOx and other precursors on air quality in the northeastern United States. An array of ground, marine, and airborne observation platforms deployed during the study offer checks on emission inventories and air quality model simulations, like those of the Weather Research and Forecasting model coupled with online chemistry (WRF-Chem). Retrospective WRF-Chem runs are carried out with two EPA inventories, one compiled for base year 1999 and an update for 2004 incorporating projected and known changes in emissions during the past 5 years. Differences in model predictions of ozone, particulates, and other tracers using the two inventories are investigated. The inventories themselves and the model simulations are compared with the extensive observations available during NEAQS-ITCT 2004. Preliminary insights regarding the sensitivity of the model to NOx emission changes are discussed.
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0345 Pollution--urban and regional (0305)
DE: 0365 Troposphere--composition and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting