`Procedures Used by U.S. EPA to Develop & Adopt Newer Dispersion Models,` presented at the Harmonization within Atmospheric Dispersion Modeling for Regulatory Purposes, Rouen, FR

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Courtesy of Trinity Consultants

Abstract
This paper summarises the management and procedural issues that led to the successful development of AERMOD and CALPUFF and how they will come to be approved regulatory models by the U.S. EPA in the next few months. The legal requirements for constantly updating models is contained in the 1977 Clean Air Act that requires U.S. EPA to publish a 'Modeling Guideline' and to hold a hearing every three years on that Guideline. In 1991, the American Meteorological Society (AMS) formed a committee with the U.S. EPA in an effort to improve models. From the effort, AERMOD was developed along with its meteorological preprocessor. The history of this technical project will provide insight to others who embark on similar efforts in Europe or other countries.

Keywords:
Dispersion modelling, air quality, regulatory use, prognostic wind field, modelling guideline

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