HR: 17:30h
AN: A34A-07    [Abstracts]
TI: Evaluation of the Regional Atmospheric Chemistry Mechanism, version 2 (RACM2)
AU: * Stockwell, W R
EM: William.Stockwell@dri.edu
AF: Howard University, 525 College Street, NW, Washington, DC 20059 United States
AU: * Stockwell, W R
EM: William.Stockwell@dri.edu
AF: Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512 United States
AU: Goliff, W S
EM: Wendy.Goliff@dri.edu
AF: Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512 United States
AB: The RACM chemical mechanism is widely used for atmospheric chemistry research and air quality modeling. It has been updated and expanded to include more detailed aromatic and isoprene chemistry and less reactive compounds, such as benzene and acetone. This greater detail will allow more complete comparisons between RACM2 simulations and field measurements. The RACM and RACM2 mechanisms were compared and evaluated using environmental chamber data. The two mechanisms were used to simulate a wide variety of initial chemical concentrations, altitudes and seasons. Isopleths of the concentrations and differences of ozone, hydroxyl radical, nitric acid and other species were compared. The results of this evaluation and comparison will be presented.
DE: 0317 Chemical kinetic and photochemical properties
DE: 0340 Middle atmosphere: composition and chemistry
DE: 0365 Troposphere: composition and chemistry
DE: 3355 Regional modeling
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005