Vertical diffusion of pollutants in the atmospheric boundary layer

An atmospheric diffusion model is used to study the main features of vertical distribution of pollutants released from a continuous point source at different heights in a thermally stratified atmospheric boundary layer. The model is based on the two-dimensional advection-diffusion-deposition equatio...

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Detalles Bibliográficos
Autores principales: Ulke, Ana G., Mazzeo, Nicolás A.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1993
Materias:
Geofísica
atmospheric diffusion model
modelo de difusión atmosférica
contaminantes
pollutants
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/134404
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-134404
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geofísica
atmospheric diffusion model
modelo de difusión atmosférica
contaminantes
pollutants
spellingShingle Geofísica
atmospheric diffusion model
modelo de difusión atmosférica
contaminantes
pollutants
Ulke, Ana G.
Mazzeo, Nicolás A.
Vertical diffusion of pollutants in the atmospheric boundary layer
topic_facet Geofísica
atmospheric diffusion model
modelo de difusión atmosférica
contaminantes
pollutants
description An atmospheric diffusion model is used to study the main features of vertical distribution of pollutants released from a continuous point source at different heights in a thermally stratified atmospheric boundary layer. The model is based on the two-dimensional advection-diffusion-deposition equation, with vertical profiles of wind and eddy diffusivity for the atmospheric boundary layer. The formulation permits studying the influence of surface roughness, atmospheric stability, mixing depth and source height on concentration distributions. Numerical simulations of atmospheric diffusion experiments are done. From the two-dimensional concentration fields, different para-meters are calculated in terms of the second, third and fourth order statistical moments which characterize vertical distributions of material. The computed values are satisfactorily compared with those evaluated from observational data. The vertical dispersion coefficient (second order moment root mean square) is also compared with those proposed by other authors.
format Articulo
Articulo
author Ulke, Ana G.
Mazzeo, Nicolás A.
author_facet Ulke, Ana G.
Mazzeo, Nicolás A.
author_sort Ulke, Ana G.
title Vertical diffusion of pollutants in the atmospheric boundary layer
title_short Vertical diffusion of pollutants in the atmospheric boundary layer
title_full Vertical diffusion of pollutants in the atmospheric boundary layer
title_fullStr Vertical diffusion of pollutants in the atmospheric boundary layer
title_full_unstemmed Vertical diffusion of pollutants in the atmospheric boundary layer
title_sort vertical diffusion of pollutants in the atmospheric boundary layer
publishDate 1993
url http://sedici.unlp.edu.ar/handle/10915/134404
work_keys_str_mv AT ulkeanag verticaldiffusionofpollutantsintheatmosphericboundarylayer
AT mazzeonicolasa verticaldiffusionofpollutantsintheatmosphericboundarylayer
bdutipo_str Repositorios
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