Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/15869
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dc.contributor.authorGerken, Tobias-
dc.contributor.authorWei, Dandan-
dc.contributor.authorChase, Randy J.-
dc.contributor.authorFuentes, José D.-
dc.contributor.authorSchumacher, Courtney J.-
dc.contributor.authorMachado, Luiz Augusto Toledo-
dc.contributor.authorAndreoli, Rita Valéria-
dc.contributor.authorChamecki, Marcelo-
dc.contributor.authorSouza, Rodrigo Augusto Ferreira de-
dc.contributor.authorFreire, Livia Souza-
dc.contributor.authorJardine, Angela B.-
dc.contributor.authorManzi, Antônio Ocimar-
dc.contributor.authorNascimento dos Santos, Rosa M.-
dc.contributor.authorRandow, Celso Von-
dc.contributor.authordos Santos Costa, Patrícia C.-
dc.contributor.authorStoy, Paul C.-
dc.contributor.authorTóta, Júlio-
dc.contributor.authorTrowbridge, Amy M.-
dc.date.accessioned2020-05-19T20:34:01Z-
dc.date.available2020-05-19T20:34:01Z-
dc.date.issued2016-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/15869-
dc.description.abstractFrom April 2014 to January 2015, ozone (O3) dynamics were investigated as part of GoAmazon 2014/5 project in the central Amazon rainforest of Brazil. Just above the forest canopy, maximum hourly O3 mixing ratios averaged 20 ppbv (parts per billion on a volume basis) during the June-September dry months and 15 ppbv during the wet months. Ozone levels occasionally exceeded 75 ppbv in response to influences from biomass burning and regional air pollution. Individual convective storms transported O3-rich air parcels from the mid-troposphere to the surface and abruptly enhanced the regional atmospheric boundary layer by as much as 25 ppbv. In contrast to the individual storms, days with multiple convective systems produced successive, cumulative ground-level O3 increases. The magnitude of O3 enhancements depended on the vertical distribution of O3 within storm downdrafts and origin of downdrafts in the troposphere. Ozone mixing ratios remained enhanced for > 2 h following the passage of storms, which enhanced chemical processing of rainforest-emitted isoprene and monoterpenes. Reactions of isoprene and monoterpenes with O3 are modeled to generate maximum hydroxyl radical formation rates of 6×106 radicals cm-3s-1. Therefore, one key conclusion of the present study is that downdrafts of convective storms are estimated to transport enough O3 to the surface to initiate a series of reactions that reduce the lifetimes of rainforest-emitted hydrocarbons. © 2015.en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 124, Pags. 64-76pt_BR
dc.rightsRestrito*
dc.subjectAir Pollutionen
dc.subjectAtmospheric Boundary Layeren
dc.subjectAtmospheric Movementsen
dc.subjectBoundary Layersen
dc.subjectChemical Industryen
dc.subjectHeat Convectionen
dc.subjectIsopreneen
dc.subjectMixingen
dc.subjectMonoterpenesen
dc.subjectOzoneen
dc.subjectOzone Layeren
dc.subjectPollution Controlen
dc.subjectStormsen
dc.subjectTroposphereen
dc.subjectAir Chemistryen
dc.subjectAmazon Rainforesten
dc.subjectChemical Processingen
dc.subjectConvective Stormsen
dc.subjectConvective Systemsen
dc.subjectHydroxyl Radical Formationen
dc.subjectRegional Air Pollutionen
dc.subjectVertical Distributionsen
dc.subjectAtmospheric Chemistryen
dc.subjectFree Radicalen
dc.subjectHydrocarbonen
dc.subjectHydroxyl Radicalen
dc.subjectIsopreneen
dc.subjectOzoneen
dc.subjectRainen
dc.subjectSesquiterpenesen
dc.subjectTerpeneen
dc.subjectAir Qualityen
dc.subjectAtmospheric Chemistryen
dc.subjectAtmospheric Pollutionen
dc.subjectAtmospheric Transporten
dc.subjectBiomass-burningen
dc.subjectConcentration (composition)en
dc.subjectConvectionen
dc.subjectHydroxyl Radicalen
dc.subjectIsopreneen
dc.subjectMesoscale Eddyen
dc.subjectMonoterpeneen
dc.subjectOzoneen
dc.subjectRainforesten
dc.subjectVertical Distributionen
dc.subjectAir Analysisen
dc.subjectAir Pollutanten
dc.subjectAir Pollutionen
dc.subjectAir Temperatureen
dc.subjectAltitudeen
dc.subjectAtmospheric Transporten
dc.subjectBiomassen
dc.subjectBoundary Layeren
dc.subjectCanopyen
dc.subjectChemical Reactionen
dc.subjectCircadian Rhythmen
dc.subjectConcentration (parameters)en
dc.subjectControlled Studyen
dc.subjectDry Depositionen
dc.subjectEvaporationen
dc.subjectHumanen
dc.subjectHuman Activitiesen
dc.subjectHurricaneen
dc.subjectMolecular Dynamicsen
dc.subjectMolecular Sizeen
dc.subjectOxidationen
dc.subjectPhotochemistryen
dc.subjectPrecipitationen
dc.subjectPriority Journalen
dc.subjectRainforesten
dc.subjectSurface Propertyen
dc.subjectThermodynamicsen
dc.subjectTroposphereen
dc.subjectAmazonasen
dc.titleDownward transport of ozone rich air and implications for atmospheric chemistry in the Amazon rainforesten
dc.typeArtigopt_BR
dc.identifier.doi10.1016/j.atmosenv.2015.11.014-
dc.publisher.journalAtmospheric Environmentpt_BR
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