Record Display for the EPA National Library Catalog
RECORD NUMBER: 22 OF 28
|OLS Field Name||OLS Field Data|
|Main Title||Science Features in Models-3 Community Multiscale Air Quality System.|
|Author||Ching, J. ; Byun, D. ; Young, J. ; Binkowski, F. S. ; Pleim, J. ;|
|CORP Author||National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div.;Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.|
|Additional Subjects||Air pollution dispersion ; Mathematical models ; Atmospheric diffusion ; Diffusion modeling ; Air pollutants ; Atmospheric chemistry ; Plumes ; Emmissions ; Particulates ; Ozone ; Photolysis ; Photochemistry ; Environmental transport ; Meteorological data ; Grids(Coordinates) ; Computerized simulation ; Algorithms ; CMAQ(Community Multiscale Air Quality) ; Community Multiscale Air Quality Model ; Models-3 modeling system|
Models-3/CMAQ model is designed as a multi-pollutant Eularian grid regional to urban scale air quality and atmospheric deposition modeling system. The release version of Models-3/CMAQ will feature science options available to the user including the gas phase chemistry mechanisms, RADM2, and CB-IV a set of chemistry solvers, options for horizontal and vertical advection schemes, algorithms for fine and coarse particulate matter, photolysis rates and a plume-in-grid approach. These current science options are discussed in the context of the overall structure of Models-3/CMAQ model which includes an emission and meteorological preprocessors linked to the CMAQ by interface processors. Also discussed are the methods to determine and test the relative contribution of different atmospheric processes to the air quality predictions, important functions built into the CMAQ system.