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/3KBANK2 |
Repositório | sid.inpe.br/mtc-m21b/2015/09.29.16.03 (acesso restrito) |
Última Atualização | 2017:07.21.16.38.58 (UTC) simone |
Repositório de Metadados | sid.inpe.br/mtc-m21b/2015/09.29.16.03.31 |
Última Atualização dos Metadados | 2018:06.04.02.55.43 (UTC) administrator |
DOI | 10.1080/15481603.2015.1040227 |
ISSN | 1548-1603 |
Chave de Citação | MoreiraTeixGalv:2015:PoMuHy |
Título | Potential of multispectral and hyperspectral data to detect saline-exposed soils in Brazil |
Ano | 2015 |
Mês | July |
Data de Acesso | 12 maio 2024 |
Tipo de Trabalho | journal article |
Tipo Secundário | PRE PI |
Número de Arquivos | 1 |
Tamanho | 852 KiB |
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2. Contextualização | |
Autor | 1 Moreira, L. C. J. 2 Teixeira, A. D. S. 3 Galvão, Lênio Soares |
Identificador de Curriculo | 1 2 3 8JMKD3MGP5W/3C9JHLF |
Grupo | 1 2 3 DSR-OBT-INPE-MCTI-GOV-BR |
Afiliação | 1 Universidade Federal do Ceará (UFC) 2 Universidade Federal do Ceará (UFC) 3 Instituto Nacional de Pesquisas Espaciais (INPE) |
Endereço de e-Mail do Autor | 1 2 3 lenio.galvao@inpe.br |
Revista | GIScience and Remote Sensing |
Volume | 52 |
Número | 4 |
Páginas | 416-436 |
Nota Secundária | B1_GEOCIÊNCIAS B1_CIÊNCIAS_AGRÁRIAS_I B2_INTERDISCIPLINAR B3_CIÊNCIAS_AMBIENTAIS |
Histórico (UTC) | 2015-09-29 16:03:31 :: simone -> administrator :: 2016-06-21 17:56:54 :: administrator -> simone :: 2015 2017-07-21 16:38:58 :: simone -> administrator :: 2015 2018-06-04 02:55:43 :: administrator -> simone :: 2015 |
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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 | electrical conductivity hyperion hyperspectral NDVI OLI/Landsat-8 soil salinity |
Resumo | Irrigation-induced soil salinization is an important land degradation process in northeastern Brazil. We used multispectral and hyperspectral sensors to detect saline-exposed soils in an area cultivated with irrigated rice. Spectral mixture analysis (SMA) was applied to Operational Land Imager (OLI)/Landsat-8 data to identify exposed soils. By measuring the electrical conductivity (EC) of soil samples from 53 sites, we classified them into saline and non-saline. The surface reflectance Thematic Mapper /Landsat-5 product was used to inspect the normalized difference vegetation index (NDVI) variations over time (1984-2011) at the sites. Using OLI/Landsat-8 and Hyperion/Earth Observing One, we obtained five salinity indices and scores from principal component analysis applied to exposed soil pixels. These indices along with the first principal component (PC1) were regressed against EC to estimate soil salinization. Different metrics and support vector machine (SVM) were tested to discriminate saline and non-saline soils. The results showed that exposed soils detected by SMA had NDVI with a lower mean and standard deviation over time in the saline areas due to vegetation growth limitation. NaCl absorption bands were not observed in the Hyperion spectra due to atmospheric water vapor. Therefore, soil salinity detected by OLI or Hyperion was due to soil brightness rather than absorption bands. Because most salinity indices and scores expressed brightness to some extent, they were correlated with EC, especially the Salinity Index and PC1. However, compared with OLI, the narrow-band salinity indices of Hyperion produced a lower root mean square error for EC estimates, better discrimination between saline and non-saline soils using the Euclidean distance and spectral angle metrics, and higher SVM classification accuracy. |
Área | SRE |
Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Potential of multispectral... |
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 denyfinaldraft |
Permissão de Leitura | deny from all and allow from 150.163 |
Permissão de Atualização | não transferida |
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5. Fontes relacionadas | |
Repositório Espelho | urlib.net/www/2011/03.29.20.55 |
Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ER446E |
Lista de Itens Citando | sid.inpe.br/mtc-m21/2012/07.13.14.53.28 3 |
Divulgação | WEBSCI; 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 label lineage mark nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject targetfile tertiarymark tertiarytype url |
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7. Controle da descrição | |
e-Mail (login) | simone |
atualizar | |
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