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2 referências similares encontradas (inclusive a original) buscando em 17 dentre 17 Arquivos.
Data e hora local de busca: 23/04/2024 23:27.
1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Siteplutao.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W/3MTN2UK
Repositóriosid.inpe.br/plutao/2016/12.05.19.15.26   (acesso restrito)
Última Atualização2016:12.09.18.35.26 (UTC) lattes
Repositório de Metadadossid.inpe.br/plutao/2016/12.05.19.15.27
Última Atualização dos Metadados2021:07.28.21.56.20 (UTC) administrator
DOI10.1073/pnas.1524136113
ISSN0027-8424
Rótulolattes: 0575383574431005 13 LiuBDRSBADKKGGMSSWMM:2016:IsPhOv
Chave de CitaçãoLiuBDRSBADKKGGMSSWMM:2016:IsPhOv
TítuloIsoprene photochemistry over the Amazon rainforest
Ano2016
MêsMay
Data de Acesso23 abr. 2024
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho1021 KiB
2. Contextualização
Autor 1 Liu, Yingjun
 2 Brito, Joel
 3 Dorris, Matthew R.
 4 Rivera-Rios, Jean C.
 5 Seco, Roger
 6 Bates, Kelvin H.
 7 Artaxo, Paulo
 8 Duvoisin, Sergio
 9 Keutsch, Frank N.
10 Kim, Saewung
11 Goldstein, Allen H.
12 Guenther, Alex B.
13 Manzi, Antonio Ocimar
14 Souza, Rodrigo Augusto Ferreira de
15 Springston, Stephen R.
16 Watson, Thomas B.
17 Mckinney, Karena A.
18 Martin, Scot T.
Grupo 1
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13 CPT-CPT-INPE-MCTI-GOV-BR
Afiliação 1 Harvard University
 2 Universidade de São Paulo (USP)
 3 University of Wisconsin-Madison
 4 University of Wisconsin-Madison
 5 University of California
 6 California Institute of Technology
 7 Universidade de São Paulo (USP)
 8 Universidade do Estado do Amazonas
 9 Harvard University
10 University of California
11 University of California
12 University of California
13 Instituto Nacional de Pesquisas Espaciais (INPE)
14 Universidade do Estado do Amazonas (UEAM)
15 Brookhaven National Laboratory
16 Brookhaven National Laboratory
17 Harvard University
18 Harvard University
Endereço de e-Mail do Autor 1
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13 antonio.manzi@inpe.br
RevistaProceedings of the National Academy of Sciences of the United Sates of America
Volume113
Número22
Páginas6125-6130
Nota SecundáriaA1_SAÚDE_COLETIVA A1_QUÍMICA A1_PSICOLOGIA A1_ODONTOLOGIA A1_MEDICINA_VETERINÁRIA A1_MEDICINA_III A1_MEDICINA_II A1_MEDICINA_I A1_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A1_INTERDISCIPLINAR A1_GEOGRAFIA A1_GEOCIÊNCIAS A1_FARMÁCIA A1_ENGENHARIAS_II A1_CIÊNCIAS_BIOLÓGICAS_III A1_CIÊNCIAS_BIOLÓGICAS_II A1_CIÊNCIAS_BIOLÓGICAS_I A1_CIÊNCIAS_AMBIENTAIS A1_CIÊNCIAS_AGRÁRIAS_I A1_CIÊNCIA_DA_COMPUTAÇÃO A1_BIOTECNOLOGIA A1_BIODIVERSIDADE A1_ASTRONOMIA_/_FÍSICA A2_ENGENHARIAS_IV A2_ANTROPOLOGIA_/_ARQUEOLOGIA C_ZOOTECNIA_/_RECURSOS_PESQUEIROS
Histórico (UTC)2016-12-05 19:15:27 :: lattes -> administrator ::
2016-12-06 09:19:21 :: administrator -> lattes :: 2016
2016-12-09 18:35:27 :: lattes -> administrator :: 2016
2021-07-28 21:56:20 :: administrator -> simone :: 2016
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-Chaveisoprene photochemistry
Amazon
organic hydroperoxides
ResumoIsoprene photooxidation is a major driver of atmospheric chemistry over forested regions. Isoprene reacts with hydroxyl radicals (OH) and molecular oxygen to produce isoprene peroxy radicals (ISOPOO). These radicals can react with hydroperoxyl radicals (HO2) to dominantly produce hydroxyhydroperoxides (ISOPOOH). They can also react with nitric oxide (NO) to largely produce methyl vinyl ketone (MVK) and methacrolein (MACR). Unimolecular isomerization and bimolecular reactions with organic peroxy radicals are also possible. There is uncertainty about the relative importance of each of these pathways in the atmosphere and possible changes because of anthropogenic pollution. Herein, measurements of ISOPOOH and MVK + MACR concentrations are reported over the central region of the Amazon basin during the wet season. The research site, downwind of an urban region, intercepted both background and polluted air masses during the GoAmazon2014/5 Experiment. Under background conditions, the confidence interval for the ratio of the ISOPOOH concentration to that of MVK + MACR spanned 0.40.6. This result implies a ratio of the reaction rate of ISOPOO with HO2 to that with NO of approximately unity. A value of unity is significantly smaller than simulated at present by global chemical transport models for this important, nominally low-NO, forested region of Earth. Under polluted conditions, when the concentrations of reactive nitrogen compounds were high (>1 ppb), ISOPOOH concentrations dropped below the instrumental detection limit (<60 ppt). This abrupt shift in isoprene photooxidation, sparked by human activities, speaks to ongoing and possible future changes in the photochemistry active over the Amazon rainforest.
ÁreaMET
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4. Condições de acesso e uso
Idiomaen
Arquivo Alvoliu_isoprene.pdf
Grupo de Usuárioslattes
Grupo de Leitoresadministrator
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Visibilidadeshown
Política de Arquivamentodenypublisher allowfinaldraft
Permissão de Leituradeny from all and allow from 150.163
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5. Fontes relacionadas
Repositório Espelhourlib.net/www/2011/03.29.20.55
Unidades Imediatamente Superiores8JMKD3MGPCW/3EUPEJL
Lista de Itens Citandosid.inpe.br/bibdigital/2013/10.06.18.03 2
DivulgaçãoWEBSCI; PORTALCAPES.
Acervo Hospedeirodpi.inpe.br/plutao@80/2008/08.19.15.01
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn lineage mark nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url
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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34R/3R44Q9H
Repositóriosid.inpe.br/mtc-m21c/2018/05.08.17.04
Última Atualização2018:05.08.17.04.11 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m21c/2018/05.08.17.04.11
Última Atualização dos Metadados2022:03.05.04.09.20 (UTC) administrator
DOI10.5194/acp-2018-232
ISSN1680-7367
Chave de CitaçãoSchulzSHACSDFJKKMMPSVWZZAAMPWB:2018:AiObIs
TítuloAircraft-based observations of isoprene epoxydiol-derived secondary organic aerosol (IEPOX-SOA) in the tropical upper troposphere over the Amazon region
Ano2018
Data de Acesso23 abr. 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho825 KiB
2. Contextualização
Autor 1 Schulz, Christiane
 2 Schneider, Johannes
 3 Holanda, Bruna Amorim
 4 Appel, Oliver
 5 Costa, Anja
 6 Sá, Suzane S. de
 7 Dreiling, Volker
 8 Fütterer, Daniel
 9 Jurkat-Witschas, Tina
10 Klimach, Thomas
11 Krämer, Martina
12 Martin, Scot T.
13 Mertes, Stephan
14 Pöhlker, Mira L.
15 Sauer, Daniel
16 Voigt, Christiane
17 Weinzierl, Bernadett
18 Ziereis, Helmut
19 Zöger, Martin
20 Andreae, Meinrat O.
21 Artaxo, Paulo
22 Machado, Luiz Augusto Toledo
23 Pöschl, Ulrich
24 Wendisch, Manfred
25 Borrmann, Stephan
Identificador de Curriculo 1
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Grupo 1
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22 DIDSA-CGCPT-INPE-MCTIC-GOV-BR
Afiliação 1 Max Planck Institute for Chemistry
 2 Max Planck Institute for Chemistry
 3 Max Planck Institute for Chemistry
 4 Max Planck Institute for Chemistry
 5 Institut für Energie- und Klimaforschung (IEK7)
 6 Harvard University
 7 German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt)
 8 German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt)
 9 German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt)
10 Max Planck Institute for Chemistry
11 Institut für Energie- und Klimaforschung (IEK7)
12 Harvard University
13 Leibniz Institute for Tropospheric Research
14 Max Planck Institute for Chemistry
15 German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt)
16 German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt)
17 German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt)
18 German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt)
19 German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt)
20 Max Planck Institute for Chemistry
21 Universidade de São Paulo (USP)
22 Instituto Nacional de Pesquisas Espaciais (INPE)
23 Max Planck Institute for Chemistry
24 University of Leipzig
25 Max Planck Institute for Chemistry
Endereço de e-Mail do Autor 1
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22 luiz.machado@inpe.br
RevistaAtmospheric Chemistry and Physics Discussion
Volume2018
Número232
Nota SecundáriaC_ASTRONOMIA_/_FÍSICA
Histórico (UTC)2018-05-08 17:04:11 :: simone -> administrator ::
2018-05-08 17:04:11 :: administrator -> simone :: 2018
2018-05-08 17:09:38 :: simone -> administrator :: 2018
2022-03-05 04:09:20 :: administrator -> simone :: 2018
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
ResumoDuring the ACRIDICON-CHUVA field project (SeptemberOctober 2014; based in Manaus, Brazil) aircraft-based in-situ measurements of aerosol chemical composition were conducted in the tropical troposphere over the Amazon using the High Altitude and Long Range Research Aircraft (HALO), covering altitudes from the boundary layer height up to 14.4 km. The submicron non-refractory aerosol was characterized by flash-vaporization/electron impact-ionization aerosol particle mass spectrometry. The results show that significant secondary organic aerosol (SOA) formation by isoprene oxidation products occurs in the upper troposphere, leading to increased organic aerosol mass concentrations above 10 km altitude. The median organic mass concentrations in the upper troposphere above 10 km range between 1.0 and 2.1 μg m−3 (referring to standard temperature and pressure; STP) with interquartile ranges of 0.6 to 3.0 μg m−3 (STP), representing 70 % of the total submicron non-refractory aerosol particle mass. The presence of isoprene epoxydiol-derived isoprene secondary organic aerosol (IEPOX-SOA) was confirmed by marker peaks in the mass spectra. We estimate the contribution of IEPOX-SOA to the total organic aerosol in the upper troposphere to be about 20 %. After isoprene emission from vegetation, oxidation processes occur at low altitudes and/or during transport to higher altitudes, which may lead to the formation of IEPOX (one oxidation product of isoprene). Reactive uptake or condensation of IEPOX on pre-existing particles leads to IEPOX-SOA formation and subsequently increasing organic mass in the upper troposphere. This organic mass increase was accompanied by an increase of the nitrate mass concentrations, most likely due to NOx production by lightning. We further found that the ammonium contained in the aerosol particles is not sufficient to neutralize the particulate sulfate and nitrate. Analysis of the ion ratio of NO+ to NO2+ indicated that nitrate in the upper troposphere exists mainly in the form of organic nitrate. IEPOX-SOA and organic nitrates are coincident with each other, indicating that IEPOX-SOA forms in the upper troposphere either on acidic nitrate particles forming organic nitrates derived from IEPOX or on already neutralized organic nitrate aerosol particles.
ÁreaMET
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Arquivo Alvoschulz_aircraft.pdf
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