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  2. Community Multiscale Air Quality Modeling System (CMAQ)

CMAQ Metadata

The following documents describe annual adjusted Community Multiscale Air Quality (CMAQ) deposition fields for the years 2002-2012 and for 2025, with a bi-directional NH3 formulation and a dynamic confined animal feeding operations (CAFO) emissions profile for critical loads analyses and as input to other ecological models where the most accurate wet deposition fields are desired (via precipitation and bias adjustments).

Each document describes the metadata needed to analyze and interpret the CMAQ runs.


  • Metadata for 2002_through 2012 12km CONUS bidi-cafo CMAQv5.0.2 simulations.pdf (pdf) (111.64 KB, 10/13/2017)
  • Metadata for CMAQv5.0.2 2025 12km BiDi-CAFO run of November 2014v2 .pdf (pdf) (137.19 KB)

Community Multiscale Air Quality Modeling System (CMAQ)

  • Learn About CMAQ
    • CMAQ's Purpose
    • CMAQ 25th Anniversary
    • Overview of Science Processes
    • Browse CMAQ Applications
  • CMAQ Models
    • CMAQ-ISAM
    • CMAQ-DDM-3D
    • WRF-CMAQ
    • MPAS-CMAQ
  • Download CMAQ
    • Model Source Code
    • Documentation
    • Resources/Utilities for Model Users
  • CMAQ Research
    • Research Highlights
    • CRACMM
    • How to Cite CMAQ
    • Publications and Peer Review
  • CMAQ Community
    • CMAQ User Community
    • Opportunities for Collaboration
    • CMAQ Webinars
    • CMAQ Community Survey Results
  • Download Data
    • Download CMAQ data
    • Test Cases
    • EPA'S Air Quality Time Series (EQUATES) Project
  • About Us
  • Frequent Questions
Contact Us about the Community Multiscale Air Quality Modeling System
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on July 3, 2024
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