Main Title |
Comparison of Modeled Concentration Profiles Using Site-Specific and Constant-Condition Meteorological Data for the ISCLT and PAL Models. |
Author |
Streicher, J. ;
Templeman, B. ;
|
CORP Author |
Computer Sciences Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. |
Publisher |
1992 |
Year Published |
1992 |
Report Number |
EPA-68-WO-0043; EPA/600/A-92/236; |
Stock Number |
PB93-120921 |
Additional Subjects |
Air pollution ;
Atmospheric models ;
Simulation ;
Plumes ;
Profiles ;
Meteorological data ;
Reprints ;
Air pollutant concentration profiles ;
Point Area Line Source Model ;
Industrial Source Complex Long Term Model
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB93-120921 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
8p |
Abstract |
Modeling atmospheric pollutant dispersion from ground-level area sources generally requires site-specific, or at least site-representative meteorological data. Models that predict annual-average concentrations as a function of radial distance and azimuthal direction accept data in standard formats such as STability ARray (STAR), or hourly (CD-144) format. The Industrial Source Complex-Long Term (ISCLT) model and the Point, Area, Line Source (PAL) model are two examples. However, an air quality screening analysis may only require estimates of the annual-average radial maximum concentrations. Modeled annual-average radial maximum concentrations (azimuth-independent) are less sensitive to the variations inherent in site-specific meteorological data. Such a one-dimensional treatment does not fully utilize, and therefore may not require, the two-dimensional information that is available in conventional meteorological data formats such as STAR or CD-144. Is there a single combination of atmospheric stability, wind speed, and frequency of occurrence (i.e., an azimuth-independent constant-condition pseudo-meteorological data input) which can provide a useful screening estimate of the annual-average radial maximum concentration profiles for ground-level area sources. A comparison of modeled annual-average radial maximum concentration profiles, from a small area source, was made between several constant conditions and meteorological data from several sites. |
Supplementary Notes |
Proceedings of the Environmental Protection Agency/Air and Waste Management Association Symposium on Measurement of Toxic and Related Air Pollutants, Durham, NC., May 1992. See also PB88-171475 and PB88-171483. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. |
Title Annotations |
Reprint: Comparison of Modeled Concentration Profiles Using Site-Specific and Constant-Condition Meteorological Data for the ISCLT and PAL Models. |
Category Codes |
68A |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/09 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
300826122 |
Origin |
NTIS |
Type |
CAT |