| 1. Identificação | |
| Tipo de Referência | Artigo em Revista Científica (Journal Article) |
| Site | plutao.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 8JMKD3MGP3W/3MTN2UR |
| Repositório | sid.inpe.br/plutao/2016/12.05.19.15.32 |
| Última Atualização | 2016:12.06.18.47.12 (UTC) lattes |
| Repositório de Metadados | sid.inpe.br/plutao/2016/12.05.19.15.33 |
| Última Atualização dos Metadados | 2021:07.28.23.05.14 (UTC) administrator |
| DOI | 10.5194/acp-16-3903-2016 |
| ISSN | 1680-7324 |
| Rótulo | lattes: 0575383574431005 13 AlvesJTJYKTNGSMAMG:2016:SeIsEm |
| Chave de Citação | AlvesJTJYKTNGSMAMG:2016:SeIsEm |
| Título | Seasonality of isoprenoid emissions from a primary rainforest in central Amazonia  |
| Ano | 2016 |
| Data de Acesso | 04 maio 2024 |
| Tipo de Trabalho | journal article |
| Tipo Secundário | PRE PI |
| Número de Arquivos | 1 |
| Tamanho | 1004 KiB |
| 2. Contextualização | |
| Autor | 1 Alves, Eliane G. 2 Jardine, Kolby 3 Tota, Julio 4 Jardine, Angela 5 Yãnez-Serrano, Ana Maria 6 Karl, Thomas 7 Tavares, Julia 8 Nelson, Bruce 9 Gu, Dasa 10 Stavrakou, Trissevgeni 11 Martin, Scot 12 Artaxo, Paulo 13 Manzi, Antonio Ocimar 14 Guenther, Alex |
| Grupo | 1 2 3 4 5 6 7 8 9 10 11 12 13 CPT-CPT-INPE-MCTI-GOV-BR |
| Afiliação | 1 Instituto Nacional de Pesquisas da Amazônia (INPA) 2 Lawrence Berkeley National Laboratory (LBNL) 3 Universidade Federal do Oeste do Pará (UFOPA) 4 Instituto Nacional de Pesquisas da Amazônia (INPA) 5 Instituto Nacional de Pesquisas da Amazônia (INPA) 6 University of Innsbruck 7 Instituto Nacional de Pesquisas da Amazônia (INPA) 8 Instituto Nacional de Pesquisas da Amazônia (INPA) 9 University of California 10 Belgian Institute for Space Aeronomy 11 Harvard University 12 Universidade de São Paulo (USP) 13 Instituto Nacional de Pesquisas Espaciais (INPE) 14 University of California |
| Endereço de e-Mail do Autor | 1 2 3 4 5 6 7 8 9 10 11 12 13 antonio.manzi@inpe.br |
| Revista | Atmospheric Chemistry and Physics |
| Volume | 16 |
| Número | 6 |
| Páginas | 3903-3925 |
| Nota Secundária | A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_I A1_CIÊNCIAS_AMBIENTAIS A1_CIÊNCIAS_AGRÁRIAS_I A2_ENGENHARIAS_II A2_ASTRONOMIA_/_FÍSICA |
| Histórico (UTC) | 2016-12-05 19:15:33 :: lattes -> administrator :: 2016-12-06 18:43:39 :: administrator -> lattes :: 2016 2016-12-06 18:47:13 :: lattes -> administrator :: 2016 2021-07-28 23:05:14 :: administrator -> simone :: 2016 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Tipo de Versão | publisher |
| Resumo | Tropical rainforests are an important source of isoprenoid and other volatile organic compound (VOC) emissions to the atmosphere. The seasonal variation of these compounds is however still poorly understood. In this study, vertical profiles of mixing ratios of isoprene, total monoterpenes and total sesquiterpenes, were measured within and above the canopy, in a primary rainforest in central Amazonia, using a proton transfer reaction mass spectrometer (PTR-MS). Fluxes of these compounds from the canopy into the atmosphere were estimated from PTR-MS measurements by using an inverse Lagrangian transport model. Measurements were carried out continuously from September 2010 to January 2011, encompassing the dry and wet seasons. Mixing ratios were higher during the dry (isoprene 2.68 ± 0.9 ppbv, total monoterpenes 0.67 ± 0.3 ppbv; total sesquiterpenes 0.09 ± 0.07 ppbv) than the wet season (isoprene 1.66 ± 0.9 ppbv, total monoterpenes 0.47 ± 0.2 ppbv; total sesquiterpenes 0.03±0.02 ppbv) for all compounds. Ambient air temperature and photosynthetically active radiation (PAR) behaved similarly. Daytime isoprene and total monoterpene mixing ratios were highest within the canopy, rather than near the ground or above the canopy. By comparison, daytime total sesquiterpene mixing ratios were highest near the ground. Daytime fluxes varied signifi- cantly between seasons for all compounds. The maximums for isoprene (2.53 ± 0.5 µmol m−2 h −1 ) and total monoterpenes (1.77 ± 0.05 µmol m−2 h −1 ) were observed in the late dry season, whereas the maximum for total sesquiterpenes was found during the dry-to-wet transition season (0.77 ± 0.1 µmol m−2 h −1 ). These flux estimates suggest that the canopy is the main source of isoprenoids emitted into the atmosphere for all seasons. However, uncertainties in turbulence parameterization near the ground could affect estimates of fluxes that come from the ground. Leaf phenology seemed to be an important driver of seasonal variation of isoprenoid emissions. Although remote sensing observations of changes in leaf area index were used to estimate leaf phenology, MEGAN 2.1 did not fully capture the behavior of seasonal emissions observed in this study. This could be a result of very local effects on the observed emissions, but also suggest that other parameters need to be better determined in biogenic volatile organic compound (BVOC) models. Our results support established findings that seasonality of isoprenoids are driven by seasonal changes in light, temperature and leaf phenology. However, they suggest that leaf phenology and its role on isoprenoid production and emission from tropical plant species needs to be better understood in order to develop mechanistic explanations for seasonal variation in emissions. This also may reduce the uncertainties of model estimates associated with the responses to environmental factors. Therefore, this study strongly encourages long-term measurements of isoprenoid emissions, environmental factors and leaf phenology from leaf to ecosystem scale, with the purpose of improving BVOC model approaches that can characterize seasonality of isoprenoid emissions from tropical rainforests. |
| Área | MET |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > CGCPT > Seasonality of isoprenoid... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| URL dos dados | http://urlib.net/ibi/8JMKD3MGP3W/3MTN2UR |
| URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W/3MTN2UR |
| Idioma | en |
| Arquivo Alvo | alves_seasonality.pdf |
| Grupo de Usuários | lattes |
| Grupo de Leitores | administrator lattes |
| Visibilidade | shown |
| Política de Arquivamento | allowpublisher allowfinaldraft |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Repositório Espelho | urlib.net/www/2011/03.29.20.55 |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3EUPEJL |
| Lista de Itens Citando | sid.inpe.br/bibdigital/2013/10.06.18.03 3 |
| Divulgação | WEBSCI; PORTALCAPES; SCOPUS. |
| Acervo Hospedeiro | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notas | |
| Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords lineage mark month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url |
| 7. Controle da descrição | |
| e-Mail (login) | simone |
| atualizar | |