Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/902181
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dc.contributor.authorMORAES, D. A. de C.pt_BR
dc.contributor.authorSARTORI, A. A. da C.pt_BR
dc.contributor.authorNOSSACK, F. A.pt_BR
dc.contributor.authorSPADOTTO, C. A.pt_BR
dc.contributor.authorZIMBACK, C. R. L.pt_BR
dc.date.accessioned2011-10-04T11:11:11Zpt_BR
dc.date.accessioned2011-10-04T11:11:11Zpt_BR
dc.date.available2011-10-04T11:11:11Zpt_BR
dc.date.available2011-10-04T11:11:11Zpt_BR
dc.date.created2011-10-04pt_BR
dc.date.issued2011pt_BR
dc.identifier.citationIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 15., 2011, Curitiba. Anais... São José dos Campos: INPE, 2011.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/902181pt_BR
dc.descriptionThis study aims to estimate, by using the NDVI index and the unsupervised classification method CLUSTER, the areas covered by aquatic plants in Salto Grande dam, Americana - SP, comparing 2008 and 2010. The NDVI is sensitive to capture the spectral response of vegetation, which has high reflectance in the near infrared band. The classification, supervised or unsupervised, of images obtained by the index of vegetation contributes to the elaboration of thematic maps. In the process of unsupervised classification, the algorithm CLUSTER was used, which is based on a composite image, to obtain satisfactory groupings. This classifier selects the pixels at the peak of the histogram. It was observed that the area mapped with aquatic plants in 2008 is more representative due to a higher volume of them, compared to 2010. With the use of images from the satellite CBERS-2B was possible to estimate the area covered by aquatic plants on the surface of Salto Grande Dam, in Americana (SP), supported by the unsupervised classification CLUSTER, obtained after NDVI process. The maps offer an opportunity to work with a better interpreting of the different targets in the study area images, supporting the monitoring of aquatic plants in the dams and other water bodies.pt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.subjectMapas temáticospt_BR
dc.subjectClassificação não supervisionadapt_BR
dc.subjectMétodo CLUSTERpt_BR
dc.subjectÍndice NDVIpt_BR
dc.titleEstimativa e comparação da área ocupada por plantas aquáticas na superfície da Represa Salto Grande - SP com auxílio da classificação de imagens CBERS-2B.pt_BR
dc.typeArtigo em anais e proceedingspt_BR
dc.date.updated2019-05-03T11:11:11Zpt_BR
dc.format.extent2p. 2569-2575.pt_BR
riaa.ainfo.id902181pt_BR
riaa.ainfo.lastupdate2019-05-03 -03:00:00pt_BR
dc.contributor.institutionDIEGO AUGUSTO DE CAMPOS MORAES, FCA/UNESP; ANDERSON ANTONIO DA CONCEIÇÃO SARTORI, FCA/UNESP; FÁBIO ÁVILA NOSSACK, FCA/UNESP; CLAUDIO APARECIDO SPADOTTO, CNPM; CÉLA REGINA LOPES ZIMBACK, FCA/UNESP.pt_BR
Aparece nas coleções:Artigo em anais de congresso (CNPM)

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