||Computer assisted area source emissions (CAASE) gridding procedure (revised) : UNIVAC 1110/EXEC 8 version user's manual /
Haws, Richard C. ;
Dunn, III, J. W. ;
Paddock, Richard E.
||Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC.
|| U.S. Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards ; National Technical Information Service [distributor],
Air quality management--Models--United States--Data processing. ;
Air--Pollution--Models--United States--Data processing. ;
Air quality management--United States--Models--Data processing ;
Air pollution--United States--Models--Data processing
Air pollution ;
Computer programs ;
Programming manuals ;
Computerized simulation ;
Mathematical models ;
Urban areas ;
Exhaust emissions ;
Combustion products ;
Computer assisted area source emissions ;
CASSE computer programs ;
Air quality control regions ;
Air quality maintenance areas ;
UNIVAC 1110 computers ;
Point sources ;
Area sources ;
||Research Triangle Park Library/RTP, NC
||Region 10 Library/Seattle,WA
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||1 volume (various pagings) : illustrations ; 28 cm
Atmospheric dispersion modeling programs such as the Climatological Dispersion Model (CDM), Air Quality Display Model (AQDM), and Implementation Planning Program (IPP) are among the most basic tools used for evaluation of air quality and State Implementation Plans (SIP's). Since emissions data comprise the most important input information for these models, any factor affecting the availability and completeness of the emissions data has a significant impact on the results of the modeling programs. Procedures for formatting emissions from point sources are well defined, however area source emission data present problems. Usually the smallest geographic unit for which accurate primary data are available is the county. These data must be disaggregated and appropriately allocated to smaller areas to provide an adequately detailed input. The Computer Assisted Area Source Emissions gridding programs with associated subroutines containing automated gridding procedures provide an objective method for allocating county-level data to grid squares selected on the basis of demographic features and sized to give appropriate detail for input to air quality modeling programs.
"Research Triangle Institute." "March 1978." "Contract no. 68-02-2501." "EPA/450-3-78-010."