Record Display for the EPA National Library Catalog

RECORD NUMBER: 5 OF 5

OLS Field Name OLS Field Data
Main Title Temporal and Spatial Variability of the Visual Effects of Stack Plumes.
Author Seigneur, C. ; Hudischewskyj, A. B. ; Hogo, H. ;
CORP Author Systems Applications, Inc., San Rafael, CA.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1985
Report Number EPA/600/3-85/039;
Stock Number PB85-200020
Additional Subjects Plumes ; Visibility ; Spatial distribution ; Temporal environments ; Air pollution ; Chimneys ; Field tests ; Mathematical models ; Turbulent flow ; Comparison ; Atmospheric scattering ; Atmospheric disturbances ; Industrial wastes ; Combustion products ; Electric power plants ; Experimential design ; Sulfur transport and transformation program ; Atmospheric dispersion ; Computer applications
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB85-200020 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 49p
Abstract
Temporal and spatial variabilities of stack plumes are analyzed by means of field data analysis and computer simulations. In this investigation, photographs from field programs of the study Visibility Impairment due to Sulfur Transport and Transformation in the Atmosphere were analyzed via sensitometry, and PLUVUE II model simulations were conducted for a case study. Analysis of the temporal variability of plume visibility led to documentation of the fact that the visual effects of plumes vary with time because of (1) turbulent fluctuations, (2) changes in atmospheric stability, and (3) changes in the observer-plume-sun scattering angle. Likewise, the analysis of the spatial variability of plume visibility led to the fact that the visual effects of plumes vary with downwind distance from the stacks because of (1) turbulent fluctuations, (2) dilution of the plume and/or a change in the observer-plume distance, and (3) changes in the observer-plume-sun scattering angle.