Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Analytical Parameterizations of Diffusion: The Convective Boundary Layer.
Author Briggs, G. A. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1985
Report Number EPA/600/J-85/314;
Stock Number PB86-164910
Additional Subjects Atmospheric diffusion ; Atmospheric models ; Plumes ; Reprints ; Convective boundary layer ; Convection(Atmospheric) ; Atmospheric boundary layer
Library Call Number Additional Info Location Last
NTIS  PB86-164910 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 23p
A brief review is made of data bases which have been used for developing diffusion parameterizations for the convective boundary layer (CBL). A variety of parameterizations for lateral and vertical dispersion, (sigma sub) and (sigma sub z), are surveyed; some of these include mechanical turbulence, source height, or buoyancy effects. Recommendations are made for choosing among these alternatives, depending on the type of source. Because observations of passive plumes indicate that the Gaussian model does a poor job of describing vertical diffusion in the CBL, alternative models for predicting dimensionless crosswind integrated ground concentration, are reviewed and compared.