Main Title |
Evaluation of the PEM-2 using the 1982 Philadelphia aerosol field study data base / |
Author |
Ku, Jia-Yeong. ;
Ku, J. Y. ;
Rao, K. S.
|
Other Authors |
|
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 |
U.S. Environmental Protection Agency, Office of Research and Development, Atmospheric Sciences Research Laboratory, |
Year Published |
1986 |
Report Number |
EPA/600/3-86/016 |
Stock Number |
PB86-167921 |
OCLC Number |
700504532 |
Subjects |
Air--Pollution--Mathematical models
|
Additional Subjects |
Mathematical models ;
Air pollution ;
Performance evaluation ;
Sulfur dioxide ;
Statistical analysis ;
Urban areas ;
Particles ;
Sulfates ;
Concentration(Composition) ;
Pollution episodic model ;
Air quality data ;
Philadelphia(Pennsylvania)
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EKBD |
EPA-600/3-86-016 |
|
Research Triangle Park Library/RTP, NC |
02/07/2011 |
NTIS |
PB86-167921 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
x, 90 p. : ill., charts ; 28 cm. |
Abstract |
The report describes an evaluation of the Pollution Episodic Model Version 2 (PEM-2) using measurements obtained from 29 days of the Philadelphia Aerosol Field Study. The model performance was determined by comparing predicted 12-h and 24-h average concentrations against corresponding observed values at six monitoring sites for four pollutant species; particulate total mass, fine sulfate and SO2. A first-order chemical transformation of SO2 to sulfate was considered, in addition to the direct emission, dry deposition, and settling of the pollutant species. The model domain covered 80km X 80km with 32 X 32 grid cells which included 300 major point sources and 289 area sources for the Philadelphia urban area. Hourly meteorological observations and hourly emissions were input to the model. Statistical measures of difference and correlation paired in time and space revealed that the particulate species were simulated closely. These results, however, must be interpreted with caution since the background concentrations exceeded the local urban source contributions. Tables of statistical and regression analyses results as well as graphical displays of predicted and observed concentrations are presented and discussed. |
Notes |
Project officer: James M. Godowitch. Prepared by the Atmospheric Turbulence and Diffusion Division, National Oceanic and Atmospheric Administration. "February 1986." Includes bibliographical references (89-90) |