Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title User's guide for PEM-2 : pollution episodic model (version 2) /
Author Rao, K. Shankar.
Other Authors
Author Title of a Work
Godowitch, J. M.
CORP Author National Oceanic and Atmospheric Administration, Oak Ridge, TN. Atmospheric Turbulence and Diffusion Div.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Publisher Atmospheric Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1985
Report Number EPA 600-8-86-040
Stock Number PB87-132098
OCLC Number 780722002
Subjects Air--Pollution--Mathematical models.
Additional Subjects Models(Simulation) ; Air pollution ; Mathematical models ; Atmospheric diffusion ; Magnetic tapes ; Fortran ; Algorithms ; Software ; Computer programs ; Air quality ; Point sources ; PEM 2 models
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-8-86-040 Headquarters Library/Washington,DC 03/26/2012
EKBD  EPA-600-8-86-040 Research Triangle Park Library/RTP, NC 11/05/2012
NTIS  PB87-132098 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/17/2020
Collation ix, 223 p. : ill. ; 28 cm.
The Pollution Episodic Model Version 2 (PEM-2) is an urban-scale model designed to predict short term average ground-level concentrations and deposition fluxes of one or two gaseous or particulate pollutants at multiple receptors. The two pollutants may be non-reactive, or chemically-coupled through a first-order chemical transformation. Up to 300 isolated point sources and 50 distributed area sources may be considered in the calculations. Concentration and deposition flux estimates are made using hourly mean meteorological data. Up to a maximum of 24 hourly scenarios of meteorology may be included in an averaging period. The concentration algorithms used in PEM-2 are specially developed to account for the effects of dry deposition, sedimentation, and first-order chemical transformation. The Gaussian plume-type algorithms for point sources are derived from analytical solutions of a gradient-transfer model. The User's Guide lists the concentration algorithms and computational techniques used in the PEM-2 program, and describes the input/output parameters, optional features, capabilities, and limitations of the model. Modifications to the previous version of the model are outlined. The information in the report is directed to the model user and the programmer.
"IAG-DW13930021-01-1." "Project officer, James M. Godowitch." "December 1986"--Cover. Includes bibliographical references (p. 60).