%0 Journal Article
%4 dpi.inpe.br/plutao/2012/11.28.19.16.31
%2 dpi.inpe.br/plutao/2012/11.28.19.16.32
%@doi 10.1016/j.atmosenv.2012.07.083,
%@issn 1352-2310
%F lattes: 0578519055132957 9 AndradeFMMBOPCAL:2012:WeDrSe
%T Ozone sounding in the Metropolitan Area os São Paulo, Brazil: Wet and Dry season campanigns of 2006
%D 2012
%8 Dec.
%A Andrade, Maria de Fátima,
%A Freitas, Edmilson Dias de,
%A Mazzoli, Caroline R,
%A Martins, Leila Droprichinski,
%A Boian, Claudia,
%A Oliveira, Marcio Gledson Lopes,
%A Peres, Jean,
%A Carbone, Samara,
%A Alvalá, Plínio Carlos,
%A Leme, Neusa Paes,
%@affiliation Department of Atmospheric Sciences, Institute of Astronomy, Geophysics, and Atmospheric Sciences, University of São Paulo (USP), Rua do Matão 1226, São Paulo 05508-090, Brazil
%@affiliation Department of Atmospheric Sciences, Institute of Astronomy, Geophysics, and Atmospheric Sciences, University of São Paulo (USP), Rua do Matão 1226, São Paulo 05508-090, Brazil
%@affiliation Department of Atmospheric Sciences, Institute of Astronomy, Geophysics, and Atmospheric Sciences, University of São Paulo (USP), Rua do Matão 1226, São Paulo 05508-090, Brazil
%@affiliation Federal Technological University of Paraná, Apucarana Campus, Rua Marcílio Dias 635, Apucarana 86812-460, Brazil
%@affiliation Federal University of the ABC, Rua Santa Adélia 166, Santo André 09210-170, Brazil
%@affiliation Department of Atmospheric Sciences, Institute of Astronomy, Geophysics, and Atmospheric Sciences, University of São Paulo (USP), Rua do Matão 1226, São Paulo 05508-090, Brazil
%@affiliation
%@affiliation Department of Atmospheric Sciences, Institute of Astronomy, Geophysics, and Atmospheric Sciences, University of São Paulo (USP), Rua do Matão 1226, São Paulo 05508-090, Brazil
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress plinio@dge.inpe.br
%B Atmospheric Environment
%V 61
%N 2012
%P 627-640
%K Atmosphere Chemistry, Ozone.
%X In the Metropolitan Area of São Paulo (MASP), located in southeastern Brazil, surface ozone concentrations are often well above the national air quality standards. In this experimental study, we attempted to characterize the vertical profile of atmospheric ozone and transport of the ozone plume in the boundary layer, using data from the first ozone soundings ever taken in the MASP. In 2006, we launched fifteen ozonesondes: eight from 15 to 18 May (dry season); and seven from 30 October to 1 November (wet season). Vertical ozone mixing ratios in the troposphere were approximately 40 ppb, reaching maximum values of approximately 60 ppb during the dry-season campaign and approximately 100 ppb during the wet-season campaign. In the first and second campaigns, the mean tropospheric ozone column abundance was 28.2 and 41.3 DU, respectively, which can be attributed to the considerable variation in the annual temperature cycle over the region. To determine the effect that biomass burning has on ozone concentrations over the MASP, we analyzed wind trajectories and satellite-derived fire counts. We cannot state unequivocally that biomass burning contributed to higher ozone concentrations above the boundary layer during the experimental campaigns. In the boundary layer, ozone concentrations increase with altitude, peaking at the base of the inversion layer, suggesting that local emissions of volatile organic compounds and nitrogen oxides play a significant role in the lower troposphere over MASP, influencing ozone formation not only at the surface but also vertically in the atmosphere and in distant regions.
%@language pt
%3 1-s2.0-S1352231012007741-fatima.pdf
%O Setores de Atividade: Administração pública, defesa e seguridade social.