Spectral Signatures
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. NEAR INFRARED SPECTROSCOPY: RAPID AND ACCURATE ANALYTICAL TOOL FOR PREDICTION OF NON-STRUCTURAL CARBOHYDRATES IN WOOD
ABSTRACT The non-structural carbon reserves in the various organs of trees are associated with their growth and the mechanism of resilience when exposed to environmental stresses, especially the water deficit. The goal of this study was to develop multivariate models to estimate the amount of non-structural carbohydrates (starch, sucrose, reducing sugars, to
CERNE. Publicado em: 20/05/2019
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2. Processamento e modelagem de dados geofísicos e imagens ASTER aplicados à interpretação geológica e prospecção mineral na Província Aurífera de Alta Floresta, MT / Processing and modeling of geophysical data and ASTER images applied to geological interpretation and mineral exploration in the Alta Floresta Gold Province, MT
The Alta Floresta Gold Province (AFGP) is located in the central-southern Amazon craton between the limits of the Ventuari-Tapajos (1.95-1.8 Ga) and Rio Negro-Juruena (1.8-1.55 Ga) provinces. In its eastern segment there are more than one hundred gold deposits hosted in volcanic and plutonic rocks and concentrated along the Peru-Trairao Belt in a NW-SE direc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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3. Monitoramento da zona superficial de neve úmida da Península Antártica pelo uso de dados dos sensores SMMR e SSM/I
Special Sensor Microwave-Imager (SSM/I) EASE-grid data and classified ASAR wideswath (WS) images, covering the Antarctic Peninsula (AP), were processed and used in a Spectral Linear Mixing Model (SLMM) for a subpixel analysis of the Wet Snow Zone (WSZ) in SSM/I images. The components¿ proportions (fraction images) of the endmembers in the study area, namely
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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4. Phytophysiognomic forms identification and fragmentation analysis on "Parque Natural Municipal Salto do SucuriÃ" using high resolution image / IdentificaÃÃo de fitofisionomias e anÃlise da fragmentaÃÃo da vegetaÃÃo na regiÃo do Parque Natural Municipal Salto do SucuriÃ, utilizando imagem de alta resoluÃÃo
The Cerrado in the Mato Grosso do Sul state is devastated and the few remnants of native vegetation are only found in protected areas. In this way, becomes priority the study of the remnants of vegetation in the Cerrado, looking for its protection. This work objective was to identify different phytophysiognomic forms, based on the identification key proposed
Publicado em: 2008
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5. Classificação fitofisionômica do cerrado no Parque Nacional da Chapada dos Veadeiros, GO, com a aplicação de uma análise combinatória com filtros adaptativos em imagens TM Landsat
The soil fertility and water availability are some of the many factors which controls the Cerrado biome vegetation and are in charge of a great diversity of phytophysiognomies that encompass fields, savanna or forest formations. The vegetal mass amount variation occurs according to the vegetation formations and takes its effects over the spectral signatures
Publicado em: 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. USO DE TÉCNICAS DE SENSORIAMENTO REMOTO E SIG PARA MAPEAMENTO DOS ALUVIÕES EM ZONAS SEMI-ÁRIDAS ATRAVÉS DE MÉTODOS DE CLASSIFICAÇÃO AUTOMÁTICA / USE OF REMOTE SENSING AND GIS FOR ALUVIUM MAPPING IN SEMI-ARID REGIONS THROUGH AUTOMATIC CLASSICATION
Remote sensing has being widely applied in various fields of knowledge in order to produce high quality results with lower costs, computationally and financially speaking. The main goal of this research is the use remote sensing techniques combined with field surveys for the semi-automatic identification of alluvium bodies. The proposed methodology was based
Publicado em: 2006
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8. Spatial analysis of plutonics bodies of mineiro belt trough integration of geological, airbone geophysical data and geochemical data / Analise espacial dos corpos plutonicos do cinturão mineiro atraves da integração de dados geologicos, aerogeofisicos e geoquimicos
Airborne geophysical data acquired over the Mineiro Belt in the southern portion of the São Francisco Craton, Minas Gerais, Brazil display patterns not previously identified by geological field mapping. The lack of rock exposures and connections among rock formations at surface poses problems for regional geologic mapping and interpretation, which are diffi
Publicado em: 2006
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9. Microwave study of trap and precipitation of electrons in solar burst / Estudo em microondas do aprisionamento e precipitação de elétrons em explosões solares
We have studied the process of particle number density evolution during solar flares from the microwave emission point of view. In order to do this, we have used the database of Nobeyama Radio Observatory (NRO), with approximately 100 events that occurred between 1998 and 2000 that were observed in seven frequencies (1, 2, 3.8, 9.4, 17, 35, and 80 GHz), in t
Publicado em: 2003
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10. 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
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11. Análise temporal com sensor orbital de unidades fisionômicas de cerrado na gleba Pé-de-Gigante (Parque Estadual de Vassununga - SP). / Temporal analysis of physiognomic unit of cerrado vegetation with orbital sensor at Pé-de-Gigante (State Park of Vassununga - SP).
The main goal of this dissertation is to calibrate the cerrado vegetation physiognomies (Brazilian savannas) with their seasonal spectral signatures to help the monitoring and the conservation of their remnants. The study area is the cerrado Pé-de- Gigante (belonging to State Park of Vassununga in Santa Rita do Passa Quatro -SP). Using NDVI images derived f
Publicado em: 1998
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12. Use of features derives from class proportions in a pixel for the multispectral classification of remote sensing images / Utilização de atributos derivados de proporções de classes dentro de um elemento de resolução de imagem ("pixel")na classificação multiespectral de imagens de sensoriamento remoto
The spectral energy collected by the Remote Sensing instrumentation is the integration, called mixture, of the energy reflected or emmited by the objects, called primary components of the mixture, contained in a picture element. The land use classes in a scene can be described in terms of these components proportions, specially for forest targets. The object
Publicado em: 1991