Canopy Reflectance Model
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Biometric characteristics and canopy reflectance association for early-stage sugarcane biomass prediction
ABSTRACT: Knowing the spatial variability of sugarcane biomass in the early stages of development may help growers in their management decision-making. Proximal canopy sensing is a promising technology that can identify this variability but is limited to quantifying plant-specific parameters. In this study, we evaluated whether biometric variables integrated
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
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2. Hyperspectral remote sensing to assess the water status, biomass, and yield of maize cultivars under salinity and water stress
ABSTRACT Spectral remote sensing offers the potential to provide more information for making better-informed management decisions at the crop canopy level in real time. In contrast, the traditional methods for irrigation management are generally time-consuming, and numerous observations are required to characterize them. The aim of this study was to investig
Bragantia. Publicado em: 30/01/2017
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3. Reanálise CFSR-NCEP aplicada ao modelo SiB2 na simulação de fluxos de CO2 sobre o cultivo de soja em Cruz Alta.
The present work aimed to evaluate the behavior of CO2 fluxes, run by the Simple Biosphere Model (SiB2), by adopting CFSR-NCEP data reanalyzed as an atmospheric boundary condition. A statistical analysis was used in order to validate the results obtained using a coefficient for the adjusted model based on the simulation parameters when compared to the data o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. Sensibilidade da refletância de uma floresta tropical em 460 nm, 650 nm e 850 nm aos parâmetros ópticos e arquitetônicos do dossel / Tropical rainforest reflectance sensitivity in 460 nm, 650 nm and 850 nm to canopy architectural and optical parameters
Studying and monitoring the vegetation - forest, savannah or other types - is important to understand the current climatic standard. Dynamical vegetation models (DVM) are useful tools in biome studies as they are based on physical principles as well as on initial and boundary conditions, therefore can obtain evidence of the influence of factors on the modele
Publicado em: 2009
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5. Radiative transfer model for regular and discontinuous canopies (GRART): application in tree coffee canopies / Modelo de transferência radiativa para dosséis descontínuos regulares (GRART): aplicação para dosséis de café
Estandes com plantas dispostas de forma descontínua e regular, tal como cafezais, pomares de citros, florestas de eucalipto e culturas anuais no início do ciclo fenológico (ainda com estrutura em linha) são alvos de sensoriamento remoto anisotrópicos. Para esses alvos, a estimativa operacional de parâmetros requer um modelo de reflectância de dossel p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2008
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6. Radiative transfer model for regular and discontinuous canopies (GRART): application in tree coffee canopies / Modelo de transferência radiativa para dosséis descontínuos regulares (GRART): aplicação para dosséis de café
Regularly displaced discontinuous plant stands such as coffee tree stands, citrus orchards, eucalyptus forests and annual crops at the beginning of their phenological cycle (row structured) are known as highly anisotropic remote sensing targets. Operational parameter estimate upon this kind of remote sensing targets requires a physically-based canopy reflect
Publicado em: 2008
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7. Modelo de transferência radiativa para dosséis descontínuos regulares (GRART): aplicação para dosséis de café / Radiative transfer model for regular and discontinuous canopies (GRART): application in tree coffee canopies
Estandes com plantas dispostas de forma descontínua e regular, tal como cafezais, pomares de citros, florestas de eucalipto e culturas anuais no início do ciclo fenológico (ainda com estrutura em linha) são alvos de sensoriamento remoto anisotrópicos. Para esses alvos, a estimativa operacional de parâmetros requer um modelo de reflectância de dossel p
Publicado em: 2008
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8. Albedo of an Amazon tropical rainforest: field measurements, remote sensing, modeling, and its influence on the regional climate / Albedo de uma floresta tropical Amazônica: medições de campo, sensoriamento remoto, modelagem, e sua influência no clima regional
Albedo is defined as a ratio between reflected solar radiation and incoming solar radiation over a surface. It is a main factor that affects the terrestrial radiation balance and has been frequently considered in the global and regional climate studies. Amazon is one of planets regions where the response of regional atmospheric circulation is more intense. S
Publicado em: 2006
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9. Characterization of vegetation physiognomies in earstern Amazonon region through airbone videography and landsat 7 ETM + images / Caracterização de fisionomias vegetais na Amazônia Oriental através de videografia aerotransportada e imagens landsat 7 ETM+
Transformation of multispectral remote sensing data is needed for compression of data volume and for the inference of biophysical properties of the land cover. Linear Spectral Mixing Models (LSMM) and Normalized Difference Vegetation Index (NDVI) are transformations that result in indicators of vegetation structure. However these methods present limitations
Publicado em: 2003