Main Title |
User's guide for RAM / |
Author |
Turner, D. Bruce,
|
Other Authors |
|
CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, NC. |
Publisher |
Environmental Protection Agency, Office of Research and Development, Environmental Sciences Research Laboratory ; For sale by the National Technical Information Service, |
Year Published |
1978 |
Report Number |
EPA-600/8-78-016a; EPA-600/8-78-016b |
Stock Number |
PB294791 |
OCLC Number |
04377595 |
ISBN |
pbk. |
Subjects |
Gaussian processes--Computer programs ;
Air--Pollution--Mathematical models ;
Air--Pollution--Handbooks, manuals, etc ;
Algorithms ;
Computer algorithms
|
Additional Subjects |
Air pollution ;
Atmospheric diffusion ;
Concentration(Composition) ;
Urban areas ;
Terrain ;
Wind velocity ;
Atmospheric temperature ;
Turbulence ;
Air flow ;
Mathematical models ;
Plumes ;
Algorithms ;
Computer programming ;
Gaussian plume models ;
Air quality ;
RAM model ;
Point sources ;
Nonpoint sources
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJAD |
EPA 600/8-78-015 |
|
Region 3 Library/Philadelphia, PA |
10/01/1993 |
EJBD |
EPA 600-8-78-016a |
c.1 |
Headquarters Library/Washington,DC |
01/23/2014 |
EKBD |
EPA-600/8-78-016a-b |
|
Research Triangle Park Library/RTP, NC |
02/27/2004 |
ELBD ARCHIVE |
EPA 600/8-78-016a |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
EMBD |
EPA/600/8-78/016A |
|
NRMRL/GWERD Library/Ada,OK |
02/17/1995 |
ESAD |
EPA 600-8-78-016A |
|
Region 10 Library/Seattle,WA |
06/01/2016 |
NTIS |
PB-294 791 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
2 volumes ; 28 cm |
Abstract |
The information presented in this user's guide is directed to air pollution scientists having an interest in applying air quality simulation models. RAM is a method of estimating short-term dispersion using the Gaussian steady-state model. These algorithms can be used for estimating air quality concentrations of relatively nonreactive pollutants for averaging times from an hour to a day from point and area sources. The algorithms are applicable for locations with level or gently rolling terrain where a single wind vector for each hour is a good approximation to the flow over the source area considered. Calculations are performed for each hour. Hourly meteorological data required are wind direction, wind speed, temperature, stability class, and mixing height. Emission information required of point sources consists of source coordinates, emission rate, physical height, stack diameter, stack gas exit velocity, and stack gas temperature. Emission information required of area sources consists of southwest corner coordinates, source side length, total area emission rate and effective area source-height. Computation time is kept to a minimum by the manner in which concentrations from area sources are estimated using a narrow plume hypothesis and using the area source squares as given rather than breaking down all sources into an area of uniform elements. Options are available to the user to allow use of three different types of receptor locations: (1) those whose coordinates are input by the user, (2) those whose coordinates are determined by the model and are downwind of significant point and area sources where maxima are likely to occur, and (3) those whose coordinates are determined by the model to give good area coverage of a specific portion of the region. Computation time is also decreased by keeping the number of receptors to a minimum. Volume I considers the use and capabilities of RAM, its basis, the organization of the computer program, and data requirements. |
Notes |
Issued Nov. 1978. Includes bibliographical references (pages 52-53). |
Contents Notes |
v. l. Algorithm description and use -- v. II. Data preparation and listings. |
Place Published |
Research Triangle Park, N.C. Springfield, Va. |
Supplementary Notes |
See also Volume 2, PB-294 792. |
Corporate Au Added Ent |
Environmental Sciences Research Laboratory. |
PUB Date Free Form |
1978- |
Series Title Untraced |
EPA ; 600/8-78-016a |
NTIS Prices |
PC A04/MF A01 |
BIB Level |
m |
Cataloging Source |
OCLC/T |
Merged OCLC records |
49453305 |
OCLC Time Stamp |
20110516142754 |
Language |
eng |
SUDOCS Number |
EP 1.8:; EPA-600/8-78-016 |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
01367cam 2200373Ii 45020 |