| 1. Identificação | |
| Tipo de Referência | Artigo em Revista Científica (Journal Article) |
| Site | mtc-m21b.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 8JMKD3MGP3W34P/3NNBQDB |
| Repositório | sid.inpe.br/mtc-m21b/2017/04.17.19.09 |
| Última Atualização | 2017:04.17.19.09.08 (UTC) administrator |
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2017/04.17.19.09.08 |
| Última Atualização dos Metadados | 2021:01.03.02.11.48 (UTC) administrator |
| DOI | 10.5194/acp-17-2373-2017 |
| ISSN | 1680-7316
1680-7324 |
| Chave de Citação | SánchezGácitaLonFreFreMar:2017:ImMiSt |
| Título | Impact of mixing state and hygroscopicity on CCN activity of biomass burning aerosol in Amazonia  |
| Ano | 2017 |
| Mês | Feb. |
| Data de Acesso | 26 abr. 2024 |
| Tipo de Trabalho | journal article |
| Tipo Secundário | PRE PI |
| Número de Arquivos | 1 |
| Tamanho | 3524 KiB |
|
| 2. Contextualização | |
| Autor | 1 Sánchez Gácita, Madeleine
2 Longo, Karla Maria
3 Freire, Juliana Larise Mendonça
4 Freitas, Saulo Ribeiro de
5 Martin, Scot T. |
| Identificador de Curriculo | 1
2 8JMKD3MGP5W/3C9JHKQ
3
4 8JMKD3MGP5W/3C9JJ7M |
| Grupo | 1 DIDSA-CGCPT-INPE-MCTIC-GOV-BR
2 DIDMD-CGCPT-INPE-MCTIC-GOV-BR
3 MET-MET-SESPG-INPE-MCTIC-GOV-BR
4 DIDMD-CGCPT-INPE-MCTIC-GOV-BR |
| Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 Harvard University |
| Endereço de e-Mail do Autor | 1 madeleine.sanchez@cptec.inpe.br
2 karla.longo@inpe.br
3 juliana.freire@cptec.inpe.br
4 saulo.freitas@inpe.br |
| Revista | Atmospheric Chemistry and Physics |
| Volume | 17 |
| Número | 3 |
| Páginas | 2373-2392 |
| Nota Secundária | A1_MEDICINA_II A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A1_ENGENHARIAS_I A1_CIÊNCIAS_AMBIENTAIS A1_CIÊNCIAS_AGRÁRIAS_I A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_ENGENHARIAS_II A2_ASTRONOMIA_/_FÍSICA |
| Histórico (UTC) | 2017-04-17 19:09:08 :: simone -> administrator ::
2017-04-17 19:09:08 :: administrator -> simone :: 2017
2017-04-17 19:10:03 :: simone -> administrator :: 2017
2017-06-26 17:49:12 :: administrator -> simone :: 2017
2017-12-11 18:00:05 :: simone -> administrator :: 2017
2021-01-03 02:11:48 :: administrator -> simone :: 2017 |
|
| 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 | Smoke aerosols prevail throughout Amazonia because of widespread biomass burning during the dry season, and external mixing, low variability in the particle size distribution and low particle hygroscopicity are typical. There can be profound effects on cloud properties. This study uses an adiabatic cloud model to simulate the activation of smoke particles as cloud condensation nuclei (CCN) for three hypothetical case studies, chosen as to resemble biomass burning aerosol observations in Amazonia. The relative importance of variability in hygroscopicity, mixing state, and activation kinetics for the activated fraction and maximum supersaturation is assessed. For a population with kappa(p) = 0.04 an overestimation of the cloud droplet number concentration N d for the three selected case studies between 22.4 +/- 1.4 and 54.3 +/- 3.7% was obtained when assuming a hygroscopicity parameter kappa(p) = 0.20. Assuming internal mixing of the aerosol population led to overestimations of up to 20% of N d when a group of particles with medium hygroscopicity was present in the externally mixed population cases. However, the overestimations were below 10% for external mixtures between very low and low-hygroscopicity particles, as seems to be the case for Amazon smoke particles. Kinetic limitations were significant for medium-and high-hygroscopicity particles, and much lower for very low and low-hygroscopicity particles. When particles were assumed to be at equilibrium and to respond instantly to changes in the air parcel supersaturation, the overestimation of the droplet concentration was up to similar to 100% in internally mixed populations, and up to similar to 250% in externally mixed ones, being larger for the higher values of hygroscopicity. In addition, a perceptible delay between the times when maximum supersaturation and maximum aerosol activated fraction are reached was noticed and, for aerosol populations with effective hygroscopicity kappa(Peff) higher than a certain threshold value, the delay in particle activation was such that no particles were activated at the time of maximum supersaturation. Considering internally mixed populations, for an updraft velocity W = 0.5 m s(-1) this threshold of no activation varied between kappa(Peff) = 0.35 and kappa(Peff) = 0.5 for the different case studies. However, for low hygroscopicity, kinetic limitations played a weaker role for CCN activation of particles, even when taking into account the large aerosol mass and number concentrations. For the very low range of hygroscopicities, the overestimation of the droplet concentration due to the equilibrium assumption was lowest and the delay between the times when maximum supersaturation and maximum activated fraction were reached was greatly reduced or no longer observed (depending on the case study). These findings on uncertainties and sensitivities provide guidance on appropriate simplifications that can be used for modeling of smoke aerosols within general circulation models. The use of medium values of hygroscopicity representative of smoke aerosols for other biomass burning regions on Earth can lead to significant errors compared to the use of low hygroscopicity for Amazonia (between 0.05 and 0.13, according to available observations). Also in this region, consideration of the biomass burning population as internally mixed will lead to small errors in the droplet concentration, while significantly increasing the computational burden. |
| Área | MET |
| Arranjo 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > MET > Impact of mixing... |
| Arranjo 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMD > Impact of mixing... |
| Arranjo 3 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSA > Impact of mixing... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | |
|
| 4. Condições de acesso e uso | |
| URL dos dados | http://urlib.net/ibi/8JMKD3MGP3W34P/3NNBQDB |
| URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W34P/3NNBQDB |
| Idioma | en |
| Arquivo Alvo | sanchez_impact.pdf |
| Grupo de Usuários | simone |
| Grupo de Leitores | administrator
simone |
| Visibilidade | shown |
| Política de Arquivamento | allowpublisher allowfinaldraft |
| Permissão de Atualização | não transferida |
|
| 5. Fontes relacionadas | |
| Vinculação | 8JMKD3MGP5W34M/3FTKT5L |
| Repositório Espelho | sid.inpe.br/mtc-m21b/2013/09.26.14.25.22 |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3F35TRS
8JMKD3MGPCW/43SKC35
8JMKD3MGPCW/43SRC6S |
| Lista de Itens Citando | sid.inpe.br/mtc-m21/2012/07.13.14.53.10 3
sid.inpe.br/bibdigital/2021/01.03.02.10 3
sid.inpe.br/mtc-m21/2012/07.13.14.59.52 1 |
| Divulgação | WEBSCI; PORTALCAPES; AGU; SCOPUS. |
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 |
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| 6. Notas | |
| Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn keywords label lineage mark nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarytype url |
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| 7. Controle da descrição | |
| e-Mail (login) | simone |
| atualizar | |
|
