Elevation Area Volume
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery
ABSTRACT The use of Unmanned Aerial Vehicles (UAVs) and Structure from Motion (SfM) techniques can contribute to increase the accessibility, accuracy, and resolution of Digital Elevation Models (DEMs) used for soil erosion monitoring. This study aimed to evaluate the use of four DEMs obtained over a year to monitor erosion processes in an erosion-degraded ar
Rev. Bras. Ciênc. Solo. Publicado em: 14/10/2019
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2. Wood Volume Estimation in a Semidecidual Seasonal Forest Using MSI and SRTM Data
ABSTRACT The objective of this study was to evaluate the use of the MSI Sentinel-2 and SRTM data to estimate the volume of wood in a Semidecidual Seasonal Forest. Regression equations were fitted based on the remote sensing data, taking into consideration the individual bands and vegetation index of the MSI, elevation values and their derivatives obtained f
Floresta Ambient.. Publicado em: 25/03/2019
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3. Morphology and morphometry of upland lakes over lateritic crust, Serra dos Carajás, southeastern Amazon region
ABSTRACT High-resolution satellite images, digital elevation models, bathymetric and sedimentological surveys coupled with statistical analysis were used to understand the physical environment and discuss their influence on water quality of the five upland lakes of Serra Sul dos Carajás, southeast Amazonia. The lakes have mid-altitude ranges (elevation), ve
An. Acad. Bras. Ciênc.. Publicado em: 17/05/2018
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4. Qualitative improvements in the modeling of bathymetric survey in reservoirs through computational tool \"CAV-NH\" / Melhorias qualitativas na modelagem de levantamentos batimétricos em reservatórios por meio da ferramenta computacional \"CAV-NH\"
Freshwater is a finite mineral resource and essential for sustaining life on earth. For proper water resource management in the watershed, it is important to know the reservoirs Elevation-Area-Volume (EAV) curve. Energy companies and government agencies use this curve for their decision-making, considering the multiple uses of the reservoirs. Due to the rese
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/08/2012
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5. Um método multiobjetivo para o posicionamento de barragens / A multiobjective method for placement of dams
Este trabalho apresenta um método para determinar, aproximadamente, a posição mais apropriada em um terreno representado por um modelo digital de elevação para construir uma barragem tal que o reservatório gerado possa armazenar um dado volume de água. A posição será selecionada considerando os pontos do rio e será feita baseando no custo de const
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2011
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6. Estimativa volumétrica de povoamento clonal de Eucalyptus sp. através de laserscanner aerotransportado / Volumetric estimate of Eucalyptus sp. clonal plantation using airborne laserscanner
O gerenciamento florestal requer dados dendrométricos e topográficos como subsídio aos processos de tomada de decisão. Os meios mais utilizados para isto são os inventários e levantamentos de campo. Com o aprimoramento dos SIG´s (Sistemas de Informações Geográficas) e o aumento das opções de sensoriamento remoto, tais como sensores ativos e passi
Publicado em: 2009
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7. Calculo de volume de manto intemperico de encostas de regiões tropicais umidas : o caso da bacia do Rio Tavares, Ubatuba, SP / Caculation of volume of weathering mantle of slopes of humid tropical regions : the case of Tavares River basin, Ubatuba, SP
The completion, implementation or realization of researches aimed to the qualitative and quantitative data of the weathering mantle of slopes of humid tropical environments is extremely scarce. Knowledge of thickness and volume data of the weathering mantle, mainly in the landslides risk areas, may be very useful for the establishment of preventive measures
Publicado em: 2008
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8. Estudo da interferometria e polarimetria SAR em povoamentos florestais de eucalyptus SP / Sar interferometry and polarimetry study in eucalyptus sp stands
The present work aims at establishing the relationship between the forest dendrometric parameters as well as volume and biomass from stand implanted forest and the interferometric and radiometric SAR (Synthetic Aperture Radar) image response, using multivariable regression techniques. The SAR images, X and P bands, from OrbiSAR-1 sensor, were acquired from t
Publicado em: 2007
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9. Estudo da adsorção do corante reativo preto 5 sobre carvão ativado: caracterização do adsorvente e determinação de parâmetros cinéticos e termodinâmicos
In this work the adsorption of black five reactive dye was investigates using activated carbon as adsorbent. The results emphasize the kinetic and thermodynamic parameters of this process. The characterization of the adsorbent showed the following results: surface area (BET) = 439,28 m2/g, micropores volume (DR) = 0,22 cm3/g and width of the micropores (DR)
Publicado em: 2006
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10. "O povo da lagoa: uso do SIG para modelamento e simulação na área arqueológica do Camacho" / "The people of the Lagoon: using GIS for modelling and simulation in the Camacho Archaeological Area"
Data from the Camacho region, southern coast of the Santa Catarina state, southern Brazil, were collected and combined in the GIS GRASS. This region is a coastal plain, with many lagoons, and was occupied by a prehistoric population at least from c. 5,000 years before present (BP) to 1,000 years BP. In this period, the local mean sea level had fallen c. 2 m.
Publicado em: 2004
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11. Caracterização e mapeamento da vegetação da região da Floresta Nacional de Tapajós através de dados óticos, de radar e inventários florestais / Vegetation characterization and mapping of Tapajós national forest region through optico, radar and forest inventory data
The Tapajós National Forest (FNT) has been observed by several remote sensor types, for many years. As one of the main study sites of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) project, the FNT has been object of several remote sensing campaigns. However, the papers that have tried to integrate the information originating from the mul
Publicado em: 2003
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12. Experimental myocardial infarction: IV. Reduction of left ventricular compliance in the healing phase
Compliance of the infarcted left ventricle was studied in dogs 3-5 days after occlusion of the left anterior descending coronary artery. Compliance was assessed from postmortem pressure-volume curves and from pressure-length measurements (mercury-in-silastic segment length gauges) made both in vivo and postmortem. Postmortem pressure-volume curves showed red