CMAQ

Community Multiscale Air Quality Modeling System

CMAQ is a scenario-based multipollutant, multi-scale air quality model that evaluates air pollutant emissions and transformations.

Developer
EPA
Model Information
For more information about this model, go to www.epa.gov
Spatial Resolution
The modelled spatial grid is a 3D Eulerian grid. Model is designed as a one atmosphere model to allow for local to hemispheric predictions throughout the troposphere. Can also evaluate local through larger scale models.
Temporal Resolution
Time steps range from hourly to daily.
Outputs
Model outputs include ozone, particulates, acid deposition and toxics concentrations.
Intended User
practitioner
Model Type
air quality
Inclusion of Climate Change
Climate conditions are incorporated through meteorological inputs.
Geographic Region
generalized
Data Requirements
data provided by the user
Source Code Availability
open source
Dimensions
3d
Computational Burden
high
Scenario Modeling
batch mode likely
Coding Language
C/C++, FORTRAN
Operating System
not applicable
Mathematical Approach
deterministic
Maintenance Plan
maintained
Date of Last Known Update
1-Aug-19
User Manual
go to documentation at www.epa.gov