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Comparative assessment of atmospheric correction of Landsat imagery using Modtran and dark object subtraction. Author(s): LOEBMANN, D. G. dos S. W.; VICENTE, L. E.; DE PAULA, S. C.; VICTORIA, D. de C.; ANDRADE, R. G.; SILVA, R. F. B. DA; AGNESE, M. L. Remote sensing by spectral imaging of the Earth's surface can be widely used, but only when the atmospheric influence is nullified and the data are reduced to surface reflectance units. The atmospheri... ... Repository: BDPA Publication year: 2012
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
Vitamin C distribution in acerola fruit by near infrared hyperspectral imaging. Author(s): MALEGORI, C.; GRASSI, S.; MARQUES, E. J. N.; FREITAS, S. T. de; CASIRAGHI, E. The study aims at developing a methodology for qualitative mapping of nutraceutical compounds in fruit by near infrared hyperspectral imaging (NIR-HSI), focusing on vitamin C mapping in acerola (Malpi... ... Repository: BDPA Publication year: 2016
Assessment of vegetational indices applied to sugarcane monitoring using Rapideye images. Author(s): VICENTE, L. E.; LOEBMANN, D. G. dos S. W.; ZILLMANN, E.; GONZALEZ, A.; VICENTE, A. K.; OLIVEIRA, B. P. de; ARAUJO, L. S. de Rapideye sensor have been operating since 2009 and was one of the first multispectral (5 bands) sensors to operate as part of a satellite constellation (5 satellites), able to provide a massive stock... ... Repository: BDPA Publication year: 2017
Spatially-explicit and spectral soil carbon modeling in Florida. Author(s): GRUNWALD, S.; MYERS, D.; VASQUES, G. de M.; XIONG, X.; ROSS, C.; CHAIKAEW, P.; STOPPE, A.; KNOX, N.; COMERFORD, N.; HARRIS, W. Profound shifts have occurred over the last three centuries in which human actions have become the main driver to global environmental change. In this new epoch, the Anthropocene, human-driven changes... ... Repository: BDPA Publication year: 2011
Séries temporais de Evi do Modis para o mapeamento de uso e cobertura vegetal do Oeste da Bahia. Author(s): BORGES, E. F.; SANO, E. E. RESUMO: Séries temporais têm possibilitado a identificação de mudanças no uso do solo e a discriminação de fitofisionomias. Este estudo objetivou utilizar séries temporais de índice de vegetação realç... ... Repository: BDPA Publication year: 2014
New spectral index and machine learning models for detecting coffee leaf miner infestation using sentinel-2 multispectral imagery. Author(s): VILELA, E. F.; FERREIRA, W. P. M.; CASTRO, G. D. M. de; FARIA, A. L. R. de; LEITE, D. H.; LIMA, I. A.; MATOS, C. de S. M. de; SILVA, R. A.; VENZON, M. The coffee leaf miner (Leucoptera coffeella) is a key coffee pest in Brazil that can cause severe defoliation and a negative impact on the productivity. Thus, it is essential to identify initial pest... ... Repository: BDPA Publication year: 2023
Determinação de extrato etéreo em amostras vegetais com uso de solvente sob alta pressão: avaliação do equipamento semiautomático ANKOM XT15. Author(s): GALVANI, D. B.; MARTINS, T. P. O presente trabalho foi conduzido com o objetivo de avaliar a acurácia do método AOCS Am 5-04 para determinação de extrato etéreo em amostras vegetais (teor máximo de extrato etéreo de 5%). Adicionalm... ... Repository: BDPA Publication year: 2015
Obtenção de assinatura espectral de cultivares de soja. Author(s): CRUSIOL, L. G. T.; NANNI, M. R.; FURLANETTO, R. H.; CEZAR, E.; SIBALDELLI, R. N. R.; MERTZ-HENNING, L. M.; NEPOMUCENO, A. L.; NEUMAIER, N.; FARIAS, J. R. B. Repository: BDPA Publication year: 2019
Mapping of Fractional Forest Cover in Rondonia, Brazil with a Combination of Terra MODIS and Landsat TM Images. Author(s): LU, D.; BATISTELLA, M.; ALVES, D. HETRICK, S.; MORAN, E. High deforstation rates in Amazonia have motivated considerable efforts to monitor land-cover changes based on satellite images and image porcesssing techniques. Most commonly, MODIS images are used t... ... Repository: BDPA Publication year: 2007

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