Getting Started

There are many resources available for learning about the CMAQ system. This table will help you find the right starting place for your situation.

I don’t need to run CMAQ but I want to …	Start with
… learn about CMAQ’s purpose, history and design, as well as see a sample of CMAQ applications.	US EPA CMAQ Website
… learn more about EPA’s Community Regional Atmospheric Chemistry Multiphase Mechanism	CRACMM Webpage , CRACMM Repository , and CRACMM Getting Started Turorial
… see the model species and chemical reactions in the most recently released version of CMAQ	Chemical Mechanism Tables
… find data files with CMAQ estimates of air pollutants and deposition	CMAQ Data page
… use the CMAQ logo in a presentation	CMAQ logo graphics files are in the public domain and available to download
I’m ready to start running CMAQ and I want to …	Start with
… find an overview of the CMAQ system including software requirements, inputs, configuration options, outputs, and analysis tools	CMAQ’s comprehensive User’s Guide
… start running the model but I’m am not sure where to start	User’s Guide Chapters 2-5 and the CMAQ Benchmark Tutorial
… run a new simulation but I need model inputs	CMAQ Data page
… start running an instrumented model	CMAQ-DDM-3D: User’s Guide Chapter 10 and the DDM-3D Benchmark Tutorial CMAQ-ISAM: User’s Guide Chapter 11 and the ISAM Benchmark Tutorial
… run a coupled model	WRF-CMAQ: User’s Guide Chapter 13 and the WRF-CMAQ Benchmark Tutorial Global MPAS-CMAQ: MPAS-CMAQ code repository and the MPAS-CMAQ Benchmark Tutorial
… run CMAQ on a Cloud Service Provider	CMAS Center tutorial for running CMAQ on Amazon Web Services
I’m already running CMAQ and I want to …	Start with
… upgrade to the latest version of CMAQ but I’m not sure how my workflow and results will be impacted	Release Frequently Asked Questions
… see what code changes have happened in a specific section of the model in the last several years	CMAQ Release Notes
… see what bugfixes are available for the most recent release	Change log for CMAQ Bugfix branch
… run a simulation using CMAQ code from the EPA’s EQUATES project	EQUATES Benchmark GitHub repository
I have a community contribution and I want to …	Start with
… contribute code to the CMAQ repository	Contacting the CMAQ Team to learn more
… share model data with the CMAQ user community	Data submission form for the CMAS Center Data Warehouse