10.5281/zenodo.7218076
https://zenodo.org/records/7218076
oai:zenodo.org:7218076
US EPA Office of Research and Development
US EPA Office of Research and Development
CMAQ
Zenodo
2022
EPA
Center for Environmental Measurement and Modeling
air quality model
ozone
particulate matter
acid deposition
toxics
2022-10-14
eng
10.5281/zenodo.1079878
5.4
Creative Commons Attribution 4.0 International
The Community Multiscale Air Quality (CMAQ) model is an active open-source development project of the U.S. EPA that consists of a suite of programs for conducting air quality model simulations. CMAQ combines current knowledge in atmospheric science and air quality modeling, multi-processor computing techniques, and an open-source framework to deliver fast, technically sound estimates of ozone, particulates, toxics and acid deposition.
For further information please visit the EPA website for the CMAQ system: www.epa.gov/cmaq
New features in CMAQ version 5.4 include:
Updated chemistry for ozone (O3) and particulate matter (PM) formation from global-to-local scales
Introduction of the Community Regional Atmospheric Chemistry Multiphase Model (CRACMM)
Biogenic emissions algorithm options have been expanded
Revised algorithms for modeling the dry deposition of particles from the atmosphere (M3DRY and STAGE updates)
Streamlined building of the coupled WRF-CMAQ system compatible with WRFv4.4+
Improved efficiency, accuracy, and user experience for CMAQ instrumented model extensions CMAQ-DDM-3D and CMAQ-ISAM
Expansion of emissions diagnostic output features
Introduction of a domain-wide Budget Reporting tool
Online integration of common pollutant post-processing tasks (i.e. output total PM2.5 mass and more directly!)
Community Contribution: Incorporation of the Two-Dimensional Volatility Bases Set (2D-VBS) chemical mechanism
See the full list of CMAQv5.4 updates on our new CMAQ Wiki page. CMAQv5.4 Updates
For up-to-date documentation, source code, and sample run scripts, please clone or download the CMAQ git repository available through GitHub: https://github.com/USEPA/CMAQ