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Published June 30, 2010 | Version 4.7.1
Software Open

CMAQv4.7.1

Creators

Description

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

CMAQv4.7.1 includes minor system updates to CMAQv4.7 which was released September 2008. 

CMAQv4.7.1 System Updates

  • Improved time-step calculation schemes internal to the advection and aqueous chemistry modules

New Features and Processes in v4.7.1

  • Incorporated instrumented models: DDM-3D, Sulfur Tacking, Primary Carbon Apportionment based on CMAQv4.7 science updates

Notes

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/tree/4.7.1

Files

CMAQ-4.7.1.zip

Files (8.6 MB)

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Additional details

References

  • Appel, K.W., Foley, K. Bash, J.O., Pinder, R.W., Dennis, R.L., Allen, D.J., & Pickering, K. (2011). A multi-resolution assessment of the Community Multiscale Air Quality (CMAQ) model v4.7 wet deposition estimates for 2002 - 2006. Geosci. Model Dev., 4(2): 357-371. doi: 10.5194/gmd-4-357-2011
  • Foley, K., Roselle, S.J., Appel, K.W., Bhave, P., Pleim, J.E., Otte, T.L., Mathur, R., Sarwar, G., Young, J.O., Gilliam, R.C., Nolte, C.G., Kelly, J.T., Gilliland, A., & Bash, J.O. (2010). Incremental testing of the Community Multiscale Air Quality (CMAQ) modeling system version 4.7. Geosci. Model Dev., 3: 205-226. doi: 10.5194/gmd-3-205-2010
  • Carlton, A. G., Bhave, P. V., Napelenok, S. L., Edney, E. O., Sarwar, G., Pinder, R. W., Pouliot, G. A., & Houyoux, M. (2010). Model representation of secondary organic aerosol in CMAQv4.7. Environ. Sci. Technol., 44(22): 8553–8560. doi: 10.1021/es100636q