HR: 0800h
AN: A11A-0033    [Abstracts]
TI: Model Analysis of the Impact of Changes in Anthropogenic Emissions on the Air Quality in the Eastern United States
AU: * Phadnis, M J
EM: mahesh.phadnis@earthtech.com
AF: Earth Tech, Inc., 196 Baker Avenue, Concord, MA 01742 United States
AU: Moore, G E
EM: gem@src.com
AF: Earth Tech, Inc., 196 Baker Avenue, Concord, MA 01742 United States
AU: Schulman, L L
EM: Lloyd.Schulman@earthtech.com
AF: Earth Tech, Inc., 196 Baker Avenue, Concord, MA 01742 United States
AB: The CALGRID photochemical model is employed to conduct simulations of air quality over the Eastern United States. It has been modified to model particulate matter using both a highly parameterized scheme and the more sophisticated ISORROPIA scheme. Annual emission simulations were made for 1996 and future years 2010 and 2020 using EPA model-ready inputs of meteorology, boundary conditions, and emissions prepared for the first round of the EPA Clear Skies Act modeling demonstration. Several specific analysis periods (days) and annual statistics are analyzed to characterize the differences in the model response between the simple and more complicated particulate modeling algorithms. The results from several sensitivity analyses are presented in order to provide an explanation of the model responses. Limited observational data from CASTNET is used to provide some indication as to how well the two modeling approaches perform. The results from this study will be used by the states in the Ozone Transport Commission (OTC) in their State Implementation Plans.
DE: 9350 North America
DE: 6620 Science policy
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0345 Pollution--urban and regional (0305)
DE: 0365 Troposphere--composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting