||Computer assisted area source emissions (CAASE) gridding procedure (revised) : IBM 370/OS version user's manual /
Haws, Richard C. ;
Dunn, III, J. W.
||Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
|| U.S. Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards,
||EPA 450/3-78/009; EPA-68-02-2501
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 ;
IBM-370 computers ;
Computer assisted area source emissions ;
CASSE computer programs ;
Emission factors ;
Air quality maintenance ;
Point sources ;
Area sources ;
Air quality control regions ;
Air quality maintenance areas
||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.
||485 pages ; 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 five major computer gridding programs and associated subroutines contained in this revised manual 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. (Portions of this document are not fully legible)
"EPA-450/3-78-009." EPA contract no. 68-02-2501; EPA project officer: Jerome B. Mersch.