| 1. Identificação | |
| Tipo de Referência | Artigo em Evento (Conference Proceedings) |
| Site | plutao.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 8JMKD3MGP3W/3HG7GN7 |
| Repositório | sid.inpe.br/plutao/2014/12.01.12.57.14 |
| Última Atualização | 2015:01.14.11.07.08 (UTC) administrator |
| Repositório de Metadados | sid.inpe.br/plutao/2014/12.01.12.57.15 |
| Última Atualização dos Metadados | 2018:06.04.23.39.40 (UTC) administrator |
| ISBN | 9781479957750 |
| Rótulo | lattes: 2456184661855977 1 SanchesSouz:2014:CoReAn |
| Chave de Citação | SanchesSouz:2014:CoReAn |
| Título | Continuum Removal Analysis of the chlorophyll absorption feature to detect plant stress induced by liquid hydrocarbon contamination  |
| Ano | 2014 |
| Data de Acesso | 05 maio 2024 |
| Tipo Secundário | PRE CI |
| Número de Arquivos | 1 |
| Tamanho | 239 KiB |
| 2. Contextualização | |
| Autor | 1 Sanches, Ieda Del'Arco 2 Souza Filho, Carlos Roberto de |
| Grupo | 1 DSR-OBT-INPE-MCTI-GOV-BR |
| Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Institute of Geosciences, University of Campinas (UNICAMP), Brazil |
| Endereço de e-Mail | marcelo.pazos@inpe.br |
| Nome do Evento | International Geoscience and Remote Sensing Symposium, (IGARSS). |
| Localização do Evento | Quebec |
| Data | 2014 |
| Editora (Publisher) | IEEE |
| Título do Livro | Proceedings |
| Tipo Terciário | Resumo Estendido |
| Histórico (UTC) | 2014-12-01 12:57:15 :: lattes -> administrator :: 2018-06-04 23:39:40 :: administrator -> marciana :: 2014 |
| 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 | finaldraft |
| Resumo | This work explores the continuum removal (CR) technique to detect plant stress in visible/near infrared wavelengths. The red edge of the 680 nm chlorophyll absorption is a key feature in plant stress studies (e.g., [1], [8], [7]). The CR transformation consists of estimating the absorptions not due to the band of interest and removing their effects [2]. The CR technique normalises the reflectance spectrum and isolates absorption features to allow comparison between absorption bands on a common basis [4]. The CR method was initially used in geological remote sensing and was first applied to studies of leaf biochemistry by [5]. [6] demonstrated that the distinction between healthy and contaminated plant samples was improved when analysing the continuum-removed reflectance compared to reflectance and first derivative of reflectance data. In that study, they applied the CR using fixed continuum channels (e.g. 550-570 nm). Pre-stipulated wavelengths (i.e. left and right channels) used to determine the continuum line for the CR of a specific absorption feature can be adjusted for each sample to better represent the feature (PRISM software, [3]). In the present study, a time series of close range canopy reflectance data of a grass plant species (Brachiaria brizantha) grown in liquid hydrocarboncontaminated (diesel DSL; gasoline-GSL) soil was acquired with a portable spectrometer (ASD FieldSpec® 3 Hi-Res). The parameters describing the chlorophyll 680 nm absorption feature (continuum channels, depth, width, and area) were derived using the CR applied to the spectra using fixed (FIX) and adjusted (ADJ) continuum channels. Differences between CR-FIX and CR-ADJ results are observed in Figure 1 for all parameters but the feature centre (Table 1). Left and right channels of the continuum line differs some 16 nm and 8 nm on average, respectively, for the FIX and ADJ methods. In addition, the mean depth, width (FWHM full width at half maximum) and area of the 680 nm feature yielded with the ADJ technique showed higher values. The analysis of the parameters estimated for the 680 nm absorption feature (CR-ADJ) for each of the contamination treatments, indicates that plants stressed by DSL and GSL display mean values of depth, width and area substantially lower than healthy plants (CTR) (Table 2). The results imply that to better characterize an absorption feature, the application of the CR technique using adjusted channels is superior and should be favoured in the analysis. Plant stress in brachiaria grass induced by the contamination of soil with DSL and GSL can be detected with spectral feature analysis focusing on the depth, width or area of the 680 nm chlorophyll absorption feature. |
| Área | SRE |
| Arranjo | Continuum Removal Analysis... |
| 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/3HG7GN7 |
| URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W/3HG7GN7 |
| Idioma | en |
| Arquivo Alvo | 1407sanches.pdf |
| Grupo de Usuários | lattes marcelo.pazos@inpe.br marciana |
| Grupo de Leitores | administrator marcelo.pazos@inpe.br marciana |
| Visibilidade | shown |
| Permissão de Leitura | allow from all |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Vinculação | Trabalho não Vinculado à Tese/Dissertação |
| Repositório Espelho | iconet.com.br/banon/2006/11.26.21.31 |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ER446E |
| Acervo Hospedeiro | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notas | |
| Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi edition editor electronicmailaddress format issn keywords lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisheraddress resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor session shorttitle sponsor subject type url volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |