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Registros recuperados: 6
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A confiabilidade do PRODES: estimativa da acurácia do mapeamento do desmatamento no estado Mato Grosso. Repositório Alice
ADAMI, M.; GOMES, A. R.; BELUZZO, A.; COELHO, A. dos S.; VALERIANO, D. de M.; RAMOS, F. de S.; NARVAES, I. da S.; BROWN, I. F.; OLIVEIRA, I. D. de; SANTOS, L. B.; MAURANO, L. E. P.; WATRIN, O. dos S.; GRAÇA, P. M. L. de A..
PRODES is completing almost thirty years of uninterrupted monitoring of clear-cut deforestation over the Brazilian Amazon. Until now, no estimate of its mapping accuracy has been made. In this sense, this article brings a first approximation of mapping accuracy estimation of PRODES deforested areas, taking as example the state of Mato Grosso for the year 2014. For this, a random sampling panel was constructed, stratified with two strata, the deforestation of 2014 and the remaining forest. The sample size was calculated using the binomial function. In addition, a web platform was built to evaluate the points drawn by three independent evaluators. The global accuracy of the mapping of deforestation for the state of Mato Grosso, for the year 2014 was 94.5%,...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Desmatamento; Acurácia.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085664
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Land use dynamics in the Brazilian Cerrado in the period from 2002 to 2013. Repositório Alice
SAN, E. E.; ROSA, R.; SCARAMUZZA, C. A. de M.; ADAMI, M.; BOLFE, E. L.; COUTINHO, A. C.; ESQUERDO, J. C. D. M.; MAURANO, L. E. P.; NARVAES, I. da S.; OLIVEIRA FILHO, F. J. B. de; SILVA, E. B. da; VICTORIA, D. de C.; FERREIRA, L. G.; BRITO, J. L. S.; BAYMA, A. P.; OLIVEIRA, G. H. de O.; SILVA, G. B. S. da.
The objective of this work was to analyze land use dynamics in the Brazilian Cerrado region from 2002 to 2013. This analysis was based on the interpretation of Landsat satellite images carried out by the projects Projeto de Conservação e Utilização Sustentável da Diversidade Biológica Brasileira (Probio) and TerraClass Cerrado 2013, both coordinated by Ministério do Meio Ambiente. In 2002, 38.9% of the Cerrado was covered by some type of anthropic activity. In 2013, this percentage increased to 43.4%. One of the main highlights is the emergence of a new agricultural frontier in the northern region of the study area, known as Matopiba.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Probio; TerraClass Cerrado; Sensoriamento Remoto; Landsat; Remote sensing.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1108874
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Land-use and land-cover mapping of the Brazilian cerrado based mainly on Landsat-8 satellite images. Repositório Alice
SCARAMUZZA, C. A. de M.; SANO, E. E.; ADAMI, M.; BOLFE, E. L.; COUTINHO, A. C.; ESQUERDO, J. C. D. M.; MAURANO, L. E. P.; NARVAES, I. da S.; OLIVEIRA FILHO, F. J. B. de; ROSA, R.; SILVA, E. B. da; VALERIANO, D. de M.; VICTORIA, D. de C.; BAYMA, A. P.; OLIVEIRA, G. H. de; SILVA, G. B. S. da.
The Brazilian Cerrado is one of the world´s biodiversity hotspot and hosts some of the most intensive agricultural activities for food production in the world. The objective of this study was to produce a land-use and land-cover (LULC) map of the Cerrado based on Landsat-8 Operational Land Imager (OLI) images. A set of 121 scenes from 2013 was processed using the image segmentation technique. The segments were exported in the shapefile format and interpreted visually in a geographical information system software using RGB/564 color composites. The following LULC classes were considered: annual croplands, perennial croplands, cultivated pasturelands, reforestation, mosaic of occupation, urban areas, mining areas, bare soil, forestlands, non-forestlands,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Savana tropical; Uso da cobertura; Ocupação da terra; Sensoriamento remoto; Uso da terra; Cerrado; Remote sensing; Land cover; Land use.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1090969
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Land-use and land-cover mapping of the Brazilian cerrado based mainly on Landsat-8 satellite images. Repositório Alice
SCARAMUZZA, C. A. de M.; SANO, E. E.; ADAMI, M.; BOLFE, E. L.; COUTINHO, A. C.; ESQUERDO, J. C. D. M.; MAURANO, L. E. P.; NARVAES, I. da S.; OLIVEIRA FILHO, F. J. B. de; ROSA, R.; SILVA, E. B. da; VALERIANO, D. de M.; VICTORIA, D. de C.; BAYMA, A. P.; OLIVEIRA, G. H. de; SILVA, G. B. S. da.
The Brazilian Cerrado is one of the world´s biodiversity hotspot and hosts some of the most intensive agricultural activities for food production in the world. The objective of this study was to produce a land-use and land-cover (LULC) map of the Cerrado based on Landsat-8 Operational Land Imager (OLI) images. A set of 121 scenes from 2013 was processed using the image segmentation technique. The segments were exported in the shapefile format and interpreted visually in a geographical information system software using RGB/564 color composites. The following LULC classes were considered: annual croplands, perennial croplands, cultivated pasturelands, reforestation, mosaic of occupation, urban areas, mining areas, bare soil, forestlands, non-forestlands,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Savana tropical; Uso da cobertura; Ocupação da terra; Sensoriamento remoto; Uso da terra; Cerrado; Remote sensing; Land cover; Land use.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1089343
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Lem benchmark database for tropical agricultural remote sensing application. Repositório Alice
SANCHES, I. D.; FEITOSA, R. Q.; ACHANCCARAY, P.; MONTIBELLER, B.; LUIZ, A. J. B.; SOARES, M. D.; PRUDENTE, V. H. R.; VIEIRA, D. C.; MAURANO, L. E. P..
Abstract: The monitoring of agricultural activities at a regular basis is crucial to assure that the food production meets the world population demands, which is increasing yearly. Such information can be derived from remote sensing data. In spite of topic?s relevance, not enough efforts have been invested to exploit modern pattern recognition and machine learning methods for agricultural land-cover mapping from multi-temporal, multi-sensor earth observation data. Furthermore, only a small proportion of the works published on this topic relates to tropical/subtropical regions, where crop dynamics is more complicated and difficult to model than in temperate regions. A major hindrance has been the lack of accurate public databases for the comparison of...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Agricultura tropical; Free available database; Multispectral instrument; C-band SAR data; Agricultural mapping/monitoring; Double gropping systems; Sensoriamento remoto; Base de dados; Agricultura; Mapeamento.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102815
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Understanding the dynamic of tropical agriculture for remote sensing applications: a case study of Southeastern Brazil. Repositório Alice
SANCHES, I. D.; LUIZ, A. J. B.; MONTIBELLER, B.; SCHULTZ, B.; TRABAQUINI, K.; EBERHARDT, D. S.; FORMAGGIO, A. R.; MAURANO, L. E. P..
Abstract: The agricultural activity can greatly benefit from remote sensing technology (RS). Optical passive RS has been vastly explored for agricultural mapping and monitoring, in despite of cloud cover issue. This is observed even in the tropics, where frequency of clouds is very high. However, more studies are needed to better understand the high dynamism of tropical agriculture and its impact on the use of passive RS. In tropical countries, such as in Brazil, the use of current agricultural technologies, associated with favourable climate, allow the planting period to be wide and to have plants of varying phenological cycles. In this context, the main objective of the current study is to better understand the dynamics of a selected area in Southeast of...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Satellite image; Optical sensor; Multispectral; RGB false composition; NDVI; Sensoriamento Remoto; Satélite; Agricultura; Satellites; Image analysis; Image interpretation; Tropical agriculture; Monitoring.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116250
Registros recuperados: 6
Primeira ... 1 ... Última
 

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