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Title: Implementation of the US EPA (United States Environmental Protection Agency) Regional Oxidant Modeling System

Technical Report ·
OSTI ID:6588160

Model design, implementation and quality assurance procedures can have a significant impact on the effectiveness of long term utility of any modeling approach. The Regional Oxidant Modeling System (ROMS) is exceptionally complex because it treats all chemical and physical processes thought to affect ozone concentration on a regional scale. Thus, to effectively illustrate useful design and implementation techniques, this paper describes the general modeling framework which forms the basis of the ROMS. This framework is flexible enough to allow straightforward update or replacement of the chemical kinetics mechanism and/or any theoretical formulations of the physical processes. Use of the Jackson Structured Programming (JSP) method to implement this modeling framework has not only increased programmer productivity and quality of the resulting programs, but also has provided standardized program design, dynamic documentation, and easily maintainable and transportable code. A summary of the JSP method is presented to encourage modelers to pursue this technique in their own model development efforts. In addition, since data preparation is such an integral part of a successful modeling system, the ROMS processor network is described with emphasis on the internal quality control techniques.

Research Organization:
Environmental Protection Agency, Research Triangle Park, NC (USA). Environmental Sciences Research Lab.
OSTI ID:
6588160
Report Number(s):
PB-84-190529; EPA-600/D-84-116
Country of Publication:
United States
Language:
English