Modeling of atmospheric dispersion with dry deposition: an application on a research reactor

Detalhes bibliográficos
Autor(a) principal: Essa,Khaled S. M.
Data de Publicação: 2014
Outros Autores: Etman,Soad M., El-Otaify,Maha S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Meteorologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862014000300002
Resumo: An analytical solution of the three dimensional advection-diffusion equations has been formulated to simulate the dispersion of pollutants in the planetary boundary layer. The solution is based on the assumption that the concentration distribution of pollutants in the crosswind direction has a Gaussian shape and the wind speed is constant. The analytical solution has been obtained in two cases where, the vertical eddy diffusivity is taken to be dependent on: (a) the downwind distance x only and (b) the vertical height z only. The dry deposition of the diffusing particles on the ground is taken into account throughout the boundary conditions. The resulting analytical formulae have been applied to calculate the concentration of I-131 using data collected from the experiments conducted to collect air samples around the Research Reactor. Statistical measures are utilized in the comparison between the predicted and observed concentrations. The results are discussed and presented in tables and illustrative figures.
id SBMET-1_7d1d7025b818d60b006c7db8978a13f0
oai_identifier_str oai:scielo:S0102-77862014000300002
network_acronym_str SBMET-1
network_name_str Revista Brasileira de Meteorologia (Online)
repository_id_str
spelling Modeling of atmospheric dispersion with dry deposition: an application on a research reactorAtmospheric dispersionEddy diffusivitydry depositionmodel evaluationAn analytical solution of the three dimensional advection-diffusion equations has been formulated to simulate the dispersion of pollutants in the planetary boundary layer. The solution is based on the assumption that the concentration distribution of pollutants in the crosswind direction has a Gaussian shape and the wind speed is constant. The analytical solution has been obtained in two cases where, the vertical eddy diffusivity is taken to be dependent on: (a) the downwind distance x only and (b) the vertical height z only. The dry deposition of the diffusing particles on the ground is taken into account throughout the boundary conditions. The resulting analytical formulae have been applied to calculate the concentration of I-131 using data collected from the experiments conducted to collect air samples around the Research Reactor. Statistical measures are utilized in the comparison between the predicted and observed concentrations. The results are discussed and presented in tables and illustrative figures.Sociedade Brasileira de Meteorologia2014-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862014000300002Revista Brasileira de Meteorologia v.29 n.3 2014reponame:Revista Brasileira de Meteorologia (Online)instname:Sociedade Brasileira de Meteorologia (SBMET)instacron:SBMET10.1590/0102-778620130654info:eu-repo/semantics/openAccessEssa,Khaled S. M.Etman,Soad M.El-Otaify,Maha S.eng2014-08-27T00:00:00Zoai:scielo:S0102-77862014000300002Revistahttp://www.rbmet.org.br/port/index.phpONGhttps://old.scielo.br/oai/scielo-oai.php||rbmet@rbmet.org.br1982-43510102-7786opendoar:2014-08-27T00:00Revista Brasileira de Meteorologia (Online) - Sociedade Brasileira de Meteorologia (SBMET)false
dc.title.none.fl_str_mv Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
title Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
spellingShingle Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
Essa,Khaled S. M.
Atmospheric dispersion
Eddy diffusivity
dry deposition
model evaluation
title_short Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
title_full Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
title_fullStr Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
title_full_unstemmed Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
title_sort Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
author Essa,Khaled S. M.
author_facet Essa,Khaled S. M.
Etman,Soad M.
El-Otaify,Maha S.
author_role author
author2 Etman,Soad M.
El-Otaify,Maha S.
author2_role author
author
dc.contributor.author.fl_str_mv Essa,Khaled S. M.
Etman,Soad M.
El-Otaify,Maha S.
dc.subject.por.fl_str_mv Atmospheric dispersion
Eddy diffusivity
dry deposition
model evaluation
topic Atmospheric dispersion
Eddy diffusivity
dry deposition
model evaluation
description An analytical solution of the three dimensional advection-diffusion equations has been formulated to simulate the dispersion of pollutants in the planetary boundary layer. The solution is based on the assumption that the concentration distribution of pollutants in the crosswind direction has a Gaussian shape and the wind speed is constant. The analytical solution has been obtained in two cases where, the vertical eddy diffusivity is taken to be dependent on: (a) the downwind distance x only and (b) the vertical height z only. The dry deposition of the diffusing particles on the ground is taken into account throughout the boundary conditions. The resulting analytical formulae have been applied to calculate the concentration of I-131 using data collected from the experiments conducted to collect air samples around the Research Reactor. Statistical measures are utilized in the comparison between the predicted and observed concentrations. The results are discussed and presented in tables and illustrative figures.
publishDate 2014
dc.date.none.fl_str_mv 2014-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862014000300002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862014000300002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0102-778620130654
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Meteorologia
publisher.none.fl_str_mv Sociedade Brasileira de Meteorologia
dc.source.none.fl_str_mv Revista Brasileira de Meteorologia v.29 n.3 2014
reponame:Revista Brasileira de Meteorologia (Online)
instname:Sociedade Brasileira de Meteorologia (SBMET)
instacron:SBMET
instname_str Sociedade Brasileira de Meteorologia (SBMET)
instacron_str SBMET
institution SBMET
reponame_str Revista Brasileira de Meteorologia (Online)
collection Revista Brasileira de Meteorologia (Online)
repository.name.fl_str_mv Revista Brasileira de Meteorologia (Online) - Sociedade Brasileira de Meteorologia (SBMET)
repository.mail.fl_str_mv ||rbmet@rbmet.org.br
_version_ 1752122084882907136