Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluating Advection Schemes for Use in the Next Generation of Air Quality Modeling Systems.
Author Odman, M. T. ; Xiu, A. ; Byun, D. W. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;MCNC, Research Triangle Park, NC. Information Technologies Div. ;National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div.
Publisher 1994
Year Published 1994
Report Number EPA/600/A-93/290;
Stock Number PB94-130085
Additional Subjects Air pollution monitoring ; Advection ; Algorithms ; Mathematical models ; Plumes ; Tracers ; Computerized simulation ; Monotone functions ; Reprints ; Air quality models ; MODELS-3 modeling system
Library Call Number Additional Info Location Last
NTIS  PB94-130085 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 05/14/1994
Collation 26p
A simple air quality model prototype for EPA's third-generation modeling system, the Models-3 system, was recently implemented to test several design concepts. The prototype uses a time-splitting approach and process modules can be exchanged easily, without any restructuring of the model data flow. The prototype facilitates performance evaluations under realistic atmospheric conditions. Here, advection tests with idealized flow fields are used for preliminary evaluations of different advection schemes. Then, the CAPTEX tracer experiment is utilized to test the schemes with prognostic wind fields, in the presence of vertical diffusion, and trajectory errors are estimated. The objective is to create a robust test-bed environment for determining the most desirable characteristics of advection schemes in air quality modeling.