Modeling Software

This page last reviewed May 04, 2012


This page presents software and documentation available via the California Air Resources Board Information System (CARBIS). The downloading and / or use of any software from this page and its subsequent links designates your agreement to the terms and conditions stated in the Disclaimer / Conditions of Use. If you have suggestions for freely-redistributable modeling software that should be listed here, please send e-mail to webmaster. You may also be interested in ARB's modeling activities website and other ARB-maintained databases.



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Air Quality Models and Documentation

The following is a collection of modeling software and some associated documentation. Please be aware that there may be a fee for reproduction and distribution associated with some of these programs.

TOXICS AND PERMITTING:



California Puff Model (CALPUFF)


  • CALPUFF is maintained by Earth Tech, Inc. The CALPUFF system of files and documentation are located on Earth Tech's website.

Industrial Source Complex Short Term (ISCST3) Model


  • ISCST3 is maintained by U.S. EPA. The ISCST3 system of files and documentation are located on U.S. EPA's website.

SCREEN3 Model


  • SCREEN3 is maintained by U.S. EPA. The SCREEN3 system of files and documentation are located on U.S. EPA's website.

T-SCREEN Screening Model


  • TSCREEN is maintained by U.S. EPA. The TSCREEN system of files and documentaion are located on U.S. EPA's website.

California Line Source Dispersion Model (CALINE-4)


  • CALINE-4 is maintained by the California Department of Transportation (Caltrans). The CALINE-4 system of files and documentation are located on the Caltrans website.

Wind Rose Plotting Program (WRPLOT)


  • WRPLOT is maintained by U.S. EPA. The WRPLOT files and documentation are located on U.S. EPA's website.

PHOTOCHEMICAL MODELS:




METEOROLOGICAL MODELS:


California Meteorological Model (CALMET)


  • CALMET is maintained by Earth Tech, Inc. The CALMET is part of the CALPUFF system of files which, along with documentation, are located on Earth Tech's website.

Mesoscale Model 5 (MM5)


EMISSION INVENTORY MODELS:




  • California Emissions Estimator Model (CalEEMod)
    • CalEEMOD is maintained by the South Coast Air Quality Management District. The CalEEMOD system of files and documentation are located on the SCAQMD website.

MODELING SYSTEMS:




OTHER MODELING SITES:


U.S. EPA's Library of Air Quality Modeling Software




USER GUIDES:


SCREEN3 User's Guide


  • SCREEN3 is maintained by U.S. EPA. The SCREEN3 User's Guide is located on U.S. EPA's website.

ISCST3 User's Guide


T-SCREEN User's Guide


  • TSCREEN is maintained by U.S. EPA. The TSCREEN User's Guide is located on U.S. EPA's website.

U.S. EPA's Library of Air Quality Modeling User's Guides


GUIDANCE DOCUMENTS:

Guideline on Air Quality Models


  • U.S. EPA's Guideline on Air Quality Models is maintained by U.S. EPA. The Guideline on Air Quality Models, Appendix W to Part 51, Federal Register, 40 CFR Ch. I (1999 Edition) is located on U.S. EPA's website.

Screening Procedures for Estimating the Air Quality Impact of Stationary Sources


  • The Screening Procedures for Estimating the Air Quality Impact of Stationary Sources and Update are maintained by U.S. EPA. The Guides are located on U.S. EPA's website.

Guideline for Regulatory Application of the Urban Airshed Model


Meteorological Monitoring Guidance for Regulatory Modeling Applications


  • The Meteorological Monitoring Guidance for Regulatory Modeling Applications is maintained by U.S. EPA. The Guide is located on U.S. EPA's website.

U.S. EPA's Library of Modeling Support and Guidance


RESEARCH REPORTS:



WEATHER COMPUTER MODELS



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