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Main Title Estimation of maximum surface concentrations from sources near complex terrain in neutral flow /
Author Lawson, R. E. ; Snyder, W. H. ; Thompson, R. S.
Other Authors
Author Title of a Work
Snyder, W. H.
Thompson, R. S.
CORP Author 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 1989
Report Number EPA/600/J-89/067
Stock Number PB89-197487
Additional Subjects Air pollution ; Concentration(Composition) ; Atmospheric diffusion ; Hills ; Estimates ; Reprints ; Surface air ; Ground level ; Wind tunnel tests ; Atmospheric boundary layer ; Complex terrain
Library Call Number Additional Info Location Last
NTIS  PB89-197487 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13 pages ; 28 cm
A wind tunnel study was conducted to determine maximum ground-level concentrations for a variety of source positions (locations and heights) both upstream and downstream of two model hills, an axisymmetric hill and a two-dimensional ridge, immersed in a simulated neutral atmospheric boundary layer. Terrain amplification factors derived from these measurements were used to construct contour plots showing regions or 'windows' of enhanced ground-level concentration. These windows of enhanced ground-level concentration are shown to be a useful guide for estimating the effects of complex terrain on pollutant dispersion or, conversely, for determining source locations near complex terrain which minimize the enhancement of ground-level concentration.
"Journal article." "EPA/600/J-89/067." Microfiche.