In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , |
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=S0102-77862007000100010 |
Resumo: | The Metropolitan Area of São Paulo (MASP) is one of the largest urban centers in the world. The significant atmospheric concentrations of ozone, inhalable particles and other pollutants in the MASP raise serious air-quality concerns. In this study, we consider gases, particulate matter (PM) and cloud processes, with a focus on sulfate chemistry. The Regional Atmospheric Modeling System mesoscale numerical model was used in conjunction with detailed scavenging models to compare varying PM mass spectra and size distributions. Field data were collected during the July 1989-May 1990 and February-October 2000 campaigns. Adjusted-urban and rural spectra seem to fit better with observed results which improved the scavenging numerical modeling. Correlations between modeled and observed concentrations were better when the model included rural and adjusted-urban spectra, suggesting locally dominant below-cloud scavenging. Spatial variability analysis and numerical modeling also revealed that the varying sulfate rainwater concentrations indicate below-cloud removal process dominance. |
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In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasilair pollutionsulfur compoundsnumerical modelingscavenging processesrainwater chemistryThe Metropolitan Area of São Paulo (MASP) is one of the largest urban centers in the world. The significant atmospheric concentrations of ozone, inhalable particles and other pollutants in the MASP raise serious air-quality concerns. In this study, we consider gases, particulate matter (PM) and cloud processes, with a focus on sulfate chemistry. The Regional Atmospheric Modeling System mesoscale numerical model was used in conjunction with detailed scavenging models to compare varying PM mass spectra and size distributions. Field data were collected during the July 1989-May 1990 and February-October 2000 campaigns. Adjusted-urban and rural spectra seem to fit better with observed results which improved the scavenging numerical modeling. Correlations between modeled and observed concentrations were better when the model included rural and adjusted-urban spectra, suggesting locally dominant below-cloud scavenging. Spatial variability analysis and numerical modeling also revealed that the varying sulfate rainwater concentrations indicate below-cloud removal process dominance.Sociedade Brasileira de Meteorologia2007-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862007000100010Revista Brasileira de Meteorologia v.22 n.1 2007reponame:Revista Brasileira de Meteorologia (Online)instname:Sociedade Brasileira de Meteorologia (SBMET)instacron:SBMET10.1590/S0102-77862007000100010info:eu-repo/semantics/openAccessGonçalves,F. L. T.Morinobu,W. N.Andrade,M. F.Fornaro,A.eng2007-11-22T00:00:00Zoai:scielo:S0102-77862007000100010Revistahttp://www.rbmet.org.br/port/index.phpONGhttps://old.scielo.br/oai/scielo-oai.php||rbmet@rbmet.org.br1982-43510102-7786opendoar:2007-11-22T00:00Revista Brasileira de Meteorologia (Online) - Sociedade Brasileira de Meteorologia (SBMET)false |
dc.title.none.fl_str_mv |
In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil |
title |
In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil |
spellingShingle |
In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil Gonçalves,F. L. T. air pollution sulfur compounds numerical modeling scavenging processes rainwater chemistry |
title_short |
In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil |
title_full |
In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil |
title_fullStr |
In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil |
title_full_unstemmed |
In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil |
title_sort |
In-cloud and below-cloud scavenging analysis of sulfate in the metropolitan area of São Paulo, Brasil |
author |
Gonçalves,F. L. T. |
author_facet |
Gonçalves,F. L. T. Morinobu,W. N. Andrade,M. F. Fornaro,A. |
author_role |
author |
author2 |
Morinobu,W. N. Andrade,M. F. Fornaro,A. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gonçalves,F. L. T. Morinobu,W. N. Andrade,M. F. Fornaro,A. |
dc.subject.por.fl_str_mv |
air pollution sulfur compounds numerical modeling scavenging processes rainwater chemistry |
topic |
air pollution sulfur compounds numerical modeling scavenging processes rainwater chemistry |
description |
The Metropolitan Area of São Paulo (MASP) is one of the largest urban centers in the world. The significant atmospheric concentrations of ozone, inhalable particles and other pollutants in the MASP raise serious air-quality concerns. In this study, we consider gases, particulate matter (PM) and cloud processes, with a focus on sulfate chemistry. The Regional Atmospheric Modeling System mesoscale numerical model was used in conjunction with detailed scavenging models to compare varying PM mass spectra and size distributions. Field data were collected during the July 1989-May 1990 and February-October 2000 campaigns. Adjusted-urban and rural spectra seem to fit better with observed results which improved the scavenging numerical modeling. Correlations between modeled and observed concentrations were better when the model included rural and adjusted-urban spectra, suggesting locally dominant below-cloud scavenging. Spatial variability analysis and numerical modeling also revealed that the varying sulfate rainwater concentrations indicate below-cloud removal process dominance. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-04-01 |
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=S0102-77862007000100010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862007000100010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0102-77862007000100010 |
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.22 n.1 2007 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 |
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1752122083447406592 |