Flexible Regional Emissions Data System (FREDS) source code, Version 2, 1985. Model-Simulation

Technical Report · Wed Jun 28 00:00:00 EDT 1989

OSTI ID:5285866

Mobley, J D; Saeger, M

The Flexible Regional Emissions Data System (FREDS) for the 1985 NAPAP Emissions Inventory extracts emission data, pertinent modeling parameters and source identification information from point and area source data (contained in processed SAS files) and applies appropriate temporal, spatial, and pollutant species allocation factors to derive a gridded, speciated, and temporally resolved emissions file suitable as input to regional scale atmospheric simulation models. FREDS consists of seven modules which are used to reformat the data, apply allocation factors to the annual emission data, and ensure the quality of FREDS output. The seven modules are the hydrocarbon preprocessor, the quality control module, the model data-extraction module, the temporal allocation module, the speciation module, the spatial-allocation module, and the model-input preprocessor. Many of the modules can be implemented in a logical sequence or independently of the others in most cases. To maximize flexibility, FREDS allows the user to define and assign emissions of up to 15 pollutants prior to speciation, the temporal scenario, spatial grid origin and grid-cell size, and the number and relationship of pollutant subspecies. Software description: The model is written in the FORTRAN and SAS programming languages for implementation on an IBM 3090 computer using the OS/TSO operating system.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Air and Energy Engineering Research Lab.
• OSTI ID: 5285866
• Report Number(s): PB-89-237994/XAB
• Resource Relation: Other Information: Source tape is in the EBCDIC character set. This restricts preparation to 9 track, one-half inch tape only. Identify recording mode by specifying density only. For price at 6250 bpi density, call NTIS Computer Products. Price includes documentation, PB--89-198816
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
FUNCTIONAL MODELS
NAPAP
POINT POLLUTANT SOURCES
STATIONARY POLLUTANT SOURCES
DATA BASE MANAGEMENT
EMISSION
FORTRAN
MAGNETIC TAPES
SIMULATION
MAGNETIC STORAGE DEVICES
MANAGEMENT
MEMORY DEVICES
POLLUTION
POLLUTION SOURCES
PROGRAMMING LANGUAGES
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)