| 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/3PFBHQH | |||
| Repositório | sid.inpe.br/mtc-m21b/2017/08.18.18.16 (acesso restrito) | |||
| Última Atualização | 2017:09.06.15.34.55 (UTC) administrator | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2017/08.18.18.16.46 | |||
| Última Atualização dos Metadados | 2018:06.04.02.27.45 (UTC) administrator | |||
| DOI | 10.1016/j.isprsjprs.2017.07.006 | |||
| ISSN | 0924-2716 | |||
| Chave de Citação | MouraGHWSANLWPOMA:2017:SpAnAm | |||
| Título | Spectral analysis of amazon canopy phenology during the dry season using a tower hyperspectral camera and modis observations  | |||
| Ano | 2017 | |||
| Mês | Sept. | |||
| Data de Acesso | 09 maio 2024 | |||
| Tipo de Trabalho | journal article | |||
| Tipo Secundário | PRE PI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 4604 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Moura, Yhasmin Mendes de 2 Galvão, Lênio Soares 3 Hilker, T. 4 Wu, J. 5 Saleska, S. 6 Amaral, C. H. do 7 Nelson, B. W. 8 Lopes, Aline Pontes 9 Wiedeman, K. K. 10 Prohaska, N. 11 Oliveira, R. C. 12 Machado, Carolyne Bueno 13 Aragão, Luiz Eduardo Oliveira e Cruz de | |||
| Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JHLF | |||
| Grupo | 1 DIDSR-CGOBT-INPE-MCTIC-GOV-BR 2 DIDSR-CGOBT-INPE-MCTIC-GOV-BR 3 4 5 6 7 8 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 9 10 11 12 SER-SRE-SESPG-INPE-MCTIC-GOV-BR 13 DIDSR-CGOBT-INPE-MCTIC-GOV-BR | |||
| Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 University of Southampton 4 University of Arizona 5 University of Arizona 6 Universidade Federal de Viçosa (UFV) 7 Instituto Nacional de Pesquisa da Amazônia (INPA) 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 University of Arizona 10 University of Arizona 11 Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) 12 Instituto Nacional de Pesquisas Espaciais (INPE) 13 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Endereço de e-Mail do Autor | 1 yhas.mendes@gmail.com 2 lenio.galvao@inpe.br 3 4 5 6 7 8 aline.lopes@inpe.br 9 10 11 12 13 luiz.aragao@inpe.br | |||
| Revista | ISPRS Journal of Photogrammetry and Remote Sensing | |||
| Volume | 131 | |||
| Páginas | 52-64 | |||
| Nota Secundária | A1_GEOCIÊNCIAS A2_INTERDISCIPLINAR A2_CIÊNCIAS_AMBIENTAIS B1_ENGENHARIAS_IV B1_BIODIVERSIDADE C_CIÊNCIAS_AGRÁRIAS_I | |||
| Histórico (UTC) | 2017-08-18 18:16:46 :: simone -> administrator :: 2017-08-18 18:16:47 :: administrator -> simone :: 2017 2017-08-18 18:18:13 :: simone -> administrator :: 2017 2017-08-29 17:27:18 :: administrator -> simone :: 2017 2017-12-14 17:18:14 :: simone -> administrator :: 2017 2018-06-04 02:27:45 :: 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 | |||
| Palavras-Chave | Amazon Dry season Hyperspectral remote sensing Leaf flush Phenology Seasonality Tropical species | |||
| Resumo | The association between spectral reflectance and canopy processes remains challenging for quantifying large-scale canopy phenological cycles in tropical forests. In this study, we used a tower-mounted hyperspectral camera in an eastern Amazon forest to assess how canopy spectral signals of three species are linked with phenological processes in the 2012 dry season. We explored different approaches to disentangle the spectral components of canopy phenology processes and analyze their variations over time using 17 images acquired by the camera. The methods included linear spectral mixture analysis (SMA); principal component analysis (PCA); continuum removal (CR); and first-order derivative analysis. In addition, three vegetation indices potentially sensitive to leaf flushing, leaf loss and leaf area index (LAI) were calculated: the Enhanced Vegetation Index (EVI), Normalized Difference Vegetation Index (NDVI) and the entitled Green-Red Normalized Difference (GRND) index. We inspected also the consistency of the camera observations using Moderate Resolution Imaging Spectroradiometer (MODIS) and available phenological data on new leaf production and LAI of young, mature and old leaves simulated by a leaf demography-ontogeny model. The results showed a diversity of phenological responses during the 2012 dry season with related changes in canopy structure and greenness values. Because of the differences in timing and intensity of leaf flushing and leaf shedding, Erisma uncinatum, Manilkara huberi and Chamaecrista xinguensis presented different green vegetation (GV) and non-photosynthetic vegetation (NPV) SMA fractions; distinct PCA scores; changes in depth, width and area of the 681-nm chlorophyll absorption band; and variations over time in the EVI, GRND and NDVI. At the end of dry season, GV increased for Erisma uncinatum, while NPV increased for Chamaecrista xinguensis. For Manilkara huberi, the NPV first increased in the beginning of August and then decreased toward September with new foliage. Variations in red-edge position were not statistically significant between the species and across dates at the 95% confidence level. The camera data were affected by view-illumination effects, which reduced the SMA shade fraction over time. When MODIS data were corrected for these effects using the Multi-Angle Implementation of Atmospheric Correction Algorithm (MAIAC), we observed an EVI increase toward September that closely tracked the modeled LAI of mature leaves (35 months). Compared to the EVI, the GRND was a better indicator of leaf flushing because the modeled production of new leaves peaked in August and then declined in September following the GRND closely. While the EVI was more related to changes in mature leaf area, the GRND was more associated with new leaf flushing. | |||
| Área | SRE | |||
| Arranjo 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Spectral analysis of... | |||
| Arranjo 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Spectral analysis of... | |||
| Conteúdo da Pasta doc | acessar | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| 4. Condições de acesso e uso | ||||
| Idioma | en | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Política de Arquivamento | denypublisher denyfinaldraft24 | |||
| Permissão de Leitura | deny from all and allow from 150.163 | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ER446E 8JMKD3MGPCW/3F3NU5S | |||
| Lista de Itens Citando | sid.inpe.br/bibdigital/2013/09.13.21.11 3 sid.inpe.br/bibdigital/2013/10.18.22.34 2 sid.inpe.br/mtc-m21/2012/07.13.14.53.28 1 | |||
| Divulgação | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. | |||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject targetfile tertiarymark tertiarytype url | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||