Record Display for the EPA National Library Catalog


Main Title Models3/CMAQ. EPA's Third Generation Air Quality Modeling System (Version 4) (on CD-ROM).
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.
Publisher Jul 2000
Year Published 2000
Stock Number PB2000-500065
Additional Subjects Air pollution monitoring ; Emissions ; Mathematical models ; Software ; Models-simulation ; Urban areas ; Regional airsheds ; Ozone ; Acid rain ; Visibility ; Particulates ; Air pollution sources ; Diffusion modeling ; Meteorological data ; Photochemistry ; Atmospheric chemistry ; Data sets ; Data analysis ; Quality control ; CD-ROM ; Community Multi-Scale Air Quality modeling system ; Models-3 computer program ; ntiscomputer ; Emission inventories
Library Call Number Additional Info Location Last
NTIS  PB2000-500065 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation CD-ROM
Models3 is EPA's third generation airquality modeling system. A computer-based modeling framework, Models-3, has been developed to simplify the use and continued enhancement of environmental models. The software contains a Community Multi-scale Air Quality (CMAQ) modeling system for urban to regional scale air quality simulation of tropospheric ozone, acid deposition, visibility, and fine particles. Models-3 and CMAQ in combination form a powerful third generation air quality modeling and assessment system that enables users to execute air quality simulation models for their specific problem domain and visualize the results. Models-3/CMAQ also assists the model developer to assemble, test, and evaluate science process components and their impact on chemistry-transport model predictions by facilitating the interchange of science codes and the modification of key model specifications such as grid resolution and chemistry mechanism without modifying the code. The primary goals for the system are to improve: 1) the environmental management community's ability to evaluate the impact of air quality management practices for multiple pollutants at multiple scales; and 2) the scientist's ability to better probe, understand, and simulate chemical and physical interactions in the atmosphere. Another goal of the Models-3 program is to make complex and advanced models more available to everyday users, especially those people in state and local governments, industry, and academia. The Models-3 release contains two types of environmental modeling systems: meteorological, emission, and chemistry transport. It also includes a visualization and analysis system.