Fechar
Metadados

1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3Q8PJTB
Repositóriosid.inpe.br/mtc-m21b/2017/12.22.12.33
Última Atualização2017:12.22.12.33.09 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m21b/2017/12.22.12.33.09
Última Atualização dos Metadados2021:07.28.23.05.56 (UTC) administrator
DOI10.5194/acp-2017-1083
ISSN1680-7367
Chave de CitaçãoSantosLGKGOFLHBF:2017:BiBuEm
TítuloBiomass burning emissions disturbances on the isoprene oxidation in a tropical forest
Ano2017
Data de Acesso13 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho2232 KiB
2. Contextualização
Autor 1 Santos, Fernando Cavalcante dos
 2 Longo, Karla Maria
 3 Guenther, Alex B.
 4 Kim, Saewung
 5 Gu, Dasa
 6 Oram, Dave E.
 7 Forster, Grant L.
 8 Lee, James
 9 Hopkins, James R.
10 Brito, Joel F.
11 Freitas, Saulo R.
Identificador de Curriculo 1
 2 8JMKD3MGP5W/3C9JHKQ
Grupo 1 CST-CST-SESPG-INPE-MCTIC-GOV-BR
 2 DIDMD-CGCPT-INPE-MCTIC-GOV-BR
Afiliação 1 Instituto Nacional de Pesquisas Espaciais (INPE)
 2 Instituto Nacional de Pesquisas Espaciais (INPE)
 3 University of California
 4 University of California
 5 University of California
 6 University of East Anglia
 7 University of East Anglia
 8 University of York
 9 University of York
10 Universidade de São Paulo (USP)
11 NASA Goddard Space Flight Center
Endereço de e-Mail do Autor 1 fernando.santos@inpe.br
 2 karla.longo@inpe.br
RevistaAtmospheric Chemistry and Physics Discussion
Volume1083
Páginas1-35
Nota SecundáriaC_ASTRONOMIA_/_FÍSICA
Histórico (UTC)2017-12-22 12:33:09 :: simone -> administrator ::
2017-12-22 12:33:10 :: administrator -> simone :: 2017
2017-12-22 12:38:40 :: simone -> administrator :: 2017
2021-07-28 23:05:56 :: administrator -> simone :: 2017
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
ResumoWe present a characterization of the chemical composition of the atmosphere of the Brazilian Amazon rainforest based on trace gases measurements carried out during the South American Biomass Burning Analysis (SAMBBA) airborne experiment in September 2012. We analyzed the observations of primary biomass burning emission tracers, i.e., carbon monoxide (CO) and nitrogen oxides (NOx), ozone (O3), isoprene, and its main oxidation products, methyl vinyl ketone (MVK), methacrolein (MACR), and hydroxyhydroperoxides (ISOPOOH). The focus of SAMBBA was primarily on biomass burning emissions, but there were also several flights in areas of the Amazon forest not directly affected by biomass burning, revealing a background with a signature of biomass burning in the chemical composition due to long-range transport of biomass burning tracers from both Africa and the eastern part of Amazonia. We used the [MVK+MACR+ ISOPOOH]/[Isoprene] ratio and the hydroxyl radical (OH) indirect calculation to assess the oxidative capacity of the Amazon forest atmosphere. We compared the background regions (CO<150 ppbv), fresh and aged smoke plumes classified according to their photochemical age ([O3]/[CO]), to evaluate the impact of biomass burning emissions in the oxidative capacity of the Amazon forest atmosphere. We observed that biomass burning emissions disturb the isoprene oxidation reactions, especially for fresh plumes ([MVK+MACR+ISOPOOH]/[isoprene] = 7). The oxidation of isoprene is higher in fresh smoke plumes at lower altitudes (~ 500 m) than in aged smoke plumes, anticipating near the surface a complex chain of oxidation reactions, which may be related to the secondary organic aerosols (SOA) formation. We proposed a refinement of the OH calculation based on the sequential reaction model, which considers vertical and horizontal transport for both biomass burning regimes and background environment. Our approach for the [OH] estimation resulted in values of the same order of magnitude of a recent observation in the Amazon rainforest [OH] ≅ 106 (molecules cm-3 ). During the fresh plume regime, the vertical profile of [OH] and the [MVK+MACR+ISOPOOH]/[isoprene] ratio showed an evidence of an increase of the oxidizing power in the transition from PBL to cloud layer (1,000 1,500 m). These high values of [OH] (1.5  106 molecules cm-3 ) and [MVK+MACR+ISOPOOH]/[isoprene] (7.5) indicate a significant change above and inside the cloud decks due to cloud edge effects on photolysis rates, which have a major impact on OH production rates.
ÁreaCST
Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreement
agreement.html 22/12/2017 10:33 1.0 KiB 
4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/8JMKD3MGP3W34P/3Q8PJTB
URL dos dados zipadoshttp://urlib.net/zip/8JMKD3MGP3W34P/3Q8PJTB
Idiomaen
Arquivo Alvosantos_biomass.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
simone
Visibilidadeshown
Política de Arquivamentoallowpublisher allowfinaldraft
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Repositório Espelhosid.inpe.br/mtc-m21b/2013/09.26.14.25.22
Unidades Imediatamente Superiores8JMKD3MGPCW/43SKC35
8JMKD3MGPCW/449U4PL
Lista de Itens Citandosid.inpe.br/bibdigital/2021/03.06.05.18 1
sid.inpe.br/bibdigital/2021/01.01.17.20 1
DivulgaçãoWEBSCI; PORTALCAPES.
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
e-Mail (login)simone
atualizar 


Fechar