Record Display for the EPA National Library Catalog


Main Title Performance Evaluation of the 2004 Release of Models-3 CMAQ (Community Multi-scale Air Quality).
Author Yu, S. ; Eder, B. K. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.
Publisher 2004
Year Published 2004
Report Number EPA/600/A-04/081; NERL-RTP-AMD-04-050;
Stock Number PB2004-106736
Additional Subjects Performance evaluation ; Models ; Air pollution ; Nitrogen oxides ; Computerized simulation ; Concentration composition ; Emissions inventory ; Sulfur oxides ; CMAQ(Community Multi-scale Air Quality Model) ; Community Multi-scale air quality model ; Air quality models
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB2004-106736 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
This performance evaluation of the 2004 release of CMAQ reveals that the model's ability to accurately simulate the various species continues to improve, especially for NO3 concentrations, which have improved markedly since an earlier evaluation (Mebust et al., 2003). Both SO4 and NH4 continue to be well simulated by the model, as does PM( sub 2.5). Although simulations of the carbon species are somewhat deficient, improvements in both OC and EC simulations are expected with future releases of CMAQ as the scientific community's understanding of these species matures. Potential areas of research into the sources of the deficiencies identified in this evaluation include uncertainties in emissions inventories, imperfect representation of the meteorological fields, a as well as an incomplete understanding of aerosol dynamics in the CMAQ aerosol component.