| Main Title |
Valley Model user's guide / |
| Author |
Burt, Edward W.
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, N.C. Office of Air Quality Planning and Standards. |
| Publisher |
Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards, Monitoring and Data Analysis Division, Source Receptor Analysis Branch ; For sale by the National Technical Information Service, |
| Year Published |
1977 |
| Report Number |
EPA-450/2-77-018 |
| Stock Number |
PB-274 054 |
| OCLC Number |
03808295 |
| ISBN |
pbk. |
| Subjects |
Air--Pollution--United States--Mathematical models ;
Air--Pollution--United States--Computer programs ;
Air--Pollution--Computer programs ;
Air--Pollution--Mathematical models
|
| Additional Subjects |
Mathematical models ;
Air pollution ;
Numerical analysis ;
Concentration(Composition) ;
Wind velocity ;
Wind speed ;
Plumes ;
Computer programs ;
Atmospheric diffusion ;
Dispersion ;
Fortran ;
Gaussian plume models ;
Valley computer program ;
UNIVAC-1110 computers ;
Point sources ;
Valley model
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EKBD |
EPA-450/2-77-018 |
|
Research Triangle Park Library/RTP, NC |
08/13/1999 |
| ELBD ARCHIVE |
EPA 450-2-77-018 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ERAD |
EPA 450/2-77-018 |
|
Region 9 Library/San Francisco,CA |
01/23/2013 |
| ESAD |
EPA 450-2-77-018 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-274 054 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
110 pages in various pagings : diagrams ; 27 cm. |
| Abstract |
The Valley Model is a steady-state, univariate Gaussian plume dispersion model designed for multiple point- and area-source applications. It calculates pollutant concentrations for each frequency designated in an array defined by six stabilities, 16 wind directions, and six wind speeds for 112 program-designated receptor sites on a radial grid of variable scale. The output concentrations are appropriate for either a 24-hour or annual period, as designated by the user. The model contains the concentration equations, the Pasquill-Gifford vertical dispersion coefficients and the Pasquill stability classes, as given by Turner. Plume rise is calculated according to Briggs. Plume height is adjusted according to terrain elevation for stable cases. Technical details of the program are presented, with descriptions of data requirements. Flow diagrams and input data forms are presented. Four appendices include a complete test-case analysis, a complete program listing and a paper in which estimated and observed data are compared at several sites for 24-hour periods during which the upper limits of concentrations were observed. |
| Notes |
Issued Sept. 1977. Includes appendices. Includes bibliographical references (pages 5-1). |
| Place Published |
Research Triangle Park, N.C. Springfield Va. |
| Supplementary Notes |
See also report for 1 Mar 73-1 Mar 74, PB-229 771. |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Source Receptor Analysis Branch. |
| PUB Date Free Form |
1977 |
| Series Title Untraced |
EPA ; 450/2-77-018 |
| NTIS Prices |
PC A06/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| Merged OCLC records |
1225648072 |
| OCLC Time Stamp |
20141120164851 |
| Language |
eng |
| SUDOCS Number |
EP 1.8:V 24 |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01847cam 2200433Ii 45020 |
