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Applications of satellite images and field databases to analyze agroforestry systems in Brazil. Author(s): BOLFE, E. L. Abstract - Agroforestry systems (AFS) are part of a land use strategy aimed at maintaining environmental services in Brazilian Amazonia. Retention of ecosystem carbon stocks is an important environmen... ... Repository: BDPA Publication year: 2020
Estimation of nitrogen and phosphorus content in cotton leaves from medium-resolution satellite images. Author(s): BRANDÃO, Z. N.; GREGO, C. R.; GONDIM, T. M. de S.; RODRIGUES, H. M. Satellite images are valuable tools to assess the nutritional status of plants and, thus, understand the variability of cotton yield in farmers' fields. By identifying soil variability and nutritional... ... Repository: BDPA Publication year: 2024
Improvement of clay and sand quantification based on a novel approach with a focus on multispectral satellite images. Author(s): FONGARO, C. T.; DEMATTÊ, J. A. M.; RIZZO, R.; SAFANELLI, J. L.; MENDES, W. de S.; DOTTO, A. C.; VICENTE, L. E.; FRANCESCHINI, M. H. D.; USTIN, S. L. Abstract: Soil mapping demands large-scale surveys that are costly and time consuming. It is necessary to identify strategies with reduced costs to obtain detailed information for soil mapping. We aim... ... Repository: BDPA Publication year: 2018
Topographyc shadow influence on optical image acquired by satellite in the southern hemisphere. Author(s): FRANÇA, M. M.; FERNANDES FILHO, E. I.; FERREIRA, W. P. M.; LANI, J. L.; SOARES, V. P. During image acquisition, is usually chosen scenes with a lesser cloud cover to avoid loss of spectral information. However, when training samples are collected for image classification, the user find... ... Repository: BDPA Publication year: 2018
Topographic shadow influence on optical image acquired by satellite in the southern hemisphere. Author(s): FRANÇA, M. M.; FERNANDES FILHO, E. I.; FERREIRA, W. P. M.; LAN, J. L.; SOARES, V. P. During image acquisition, is usually chosen scenes with a lesser cloud cover to avoid loss of spectral information. However, when training samples are collected for image classification, the user find... ... Repository: BDPA Publication year: 2018
Options for using Landsat and RapidEye satellite images aiming the water productivity assessments in mixed agro-ecosystems. Author(s): TEIXEIRA, A. H. de C.; LEIVAS, J. F.; SILVA, G. B. S. da The objective of the actual research was to test and apply a new methodology of assessing Water Productivity (WP) being T○ retrieved with and without the thermal band of the Landsat sensor and l... ... Repository: BDPA Publication year: 2016
Spectral reflectance of satellite images using geostatistics methods to estimate growth and cotton yield. Author(s): BRANDAO, Z. N.; GREGO, C. R.; INAMASU, R. Y.; JORGE, L. A. de C. The objective of this study was the spatial identification of the NDVI index and cotton yield distributions through different crop phenological stages using geostatistical methods in Goiás state, Braz... ... Repository: BDPA Publication year: 2014
Biophysical indicators based on satellite images in an irrigated area at the São Francisco River Basin, Brazil. Author(s): LEIVAS, J. F.; TEIXEIRA, A. H. de C.; SILVA, G. B. S. da; RONQUIM, C. C.; REIS, J. B. R. da S. The Jaíba Irrigated Perimeter is a large irrigated agriculturearea, located in the region Forest Jaíba between the SãoFrancisco and Verde Grande rivers, in the Brazilian semi-arid region. In 2014, irr... ... Repository: BDPA Publication year: 2016
Obtaining information to subsidize annual production units definition in forest management plans through the combination of ground plots, LiDAR data and satellite images. Author(s): OLIVEIRA, M. V. N. d'; FIGUEIREDO, E. O.; PAPA, D. de A.; PANTOJA, N. The objective of this work was to optimize the design of the Annual Production Units (APU) in forest management plans, through the combination of field and remote sensing data. Repository: BDPA Publication year: 2019
Spatiotemporal variability of evapotranspiration in Pantanal, Brazil, using satellite images. Author(s): LEIVAS, J. F.; TEIXEIRA, A. H. de C.; ANDRADE, R. G.; VICTORIA, D. de C.; TORRESAN, F. E. Apesar da importância da evapotranspiração (ET) para o Pantanal, existem poucos estudos sobre o tema. Este estudo tem o objetivo de estimar a evapotranspiração no Pantanal aplicando o modelo agrometeo... ... Repository: BDPA Publication year: 2015

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