Geoprocessing Watershed
Mostrando 13-24 de 28 artigos, teses e dissertações.
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13. Aplicação de dados SRTM à modelagem da erosão em microbacias por geoprocessamento / Application of SRTM data to the modelling of erosion in watersheds using geoprocessing
The Universal Soil-Loss Equation (USLE) is a widely used method for calculating annual soil erosion losses, based on rainfall, soil type, topographic and land-use parameters. This study was designed to apply SRTM data for erosion modeling through USLE. The analysis of two watersheds in Maranhão showed the feasibility of remote sensing applications beyond la
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/04/2006
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14. Aplicação de dados SRTM à modelagem da erosão em microbacias por geoprocessamento / Application of srtm data to the modelling of erosion in watersheds using geoprocessing
The Universal Soil-Loss Equation (USLE) is a widely used method for calculating annual soil erosion losses, based on rainfall, soil type, topographic and land-use parameters. This study was designed to apply SRTM data for erosion modeling through USLE. The analysis of two watersheds in Maranhão showed the feasibility of remote sensing applications beyond la
Publicado em: 2006
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15. CaracterizaÃÃo geoambiental da bacia hidrogrÃfica do Rio das Antas utilizando ferramentas de geoprocessamento / Characterization geoenvironmental of the watershed of the antas river using tools of geoprocessing
Este trabalho objetivou a caracterizaÃÃo geoambiental da bacia hidrogrÃfica do Rio das Antas, localizada no municÃpio de Cascavel PR, a qual possui uma Ãrea de 134,53 kmÂ, dividida entre Ãrea urbana (21%) e rural (79%). Na coleta, manipulaÃÃo e representaÃÃo dos dados referentes ao uso do solo, geomorfologia e preservaÃÃo dos corpos d Ãgua fora
Publicado em: 2006
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16. The use of SWAT-SIG interface in the study of sediment production and runoff volume with simulation of alternative sceneries / A utilização da interface SWAT-SIG no estudo da produção de sedimentos e do volume de escoamento superficial com simulação de cenários alternativos
O presente trabalho teve por objetivos a aplicação do modelo SWAT (Soil and Water Assessment Tool) na simulação da produção de sedimentos e do volume de escoamento superficial na microbacia hidrográfica do Ribeirão do Marins, localizada em Piracicaba, SP, e a simulação de cenários alternativos de uso do solo para exemplificar o modelo e verificar
Publicado em: 2006
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17. Environmental diagnostic and temporal analysis of the suitability of the land use and land cover in the Ribeirão dos Marins basin, Piracicaba - SP / Diagnóstico ambiental e análise temporal da adequabilidade do uso e cobertura do solo na bacia do Ribeirão dos Marins, Piracicaba - SP
The environmental diagnostic and the analysis of the occupation suitability allows the identification of more critical areas according to its degradation level, being extremely important for the establishment of preservation, conservation and recovery measures. An environmental diagnostic and suitability analysis of the land use and land cover of the Ribei
Publicado em: 2005
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18. Adaption of the agricultural use and estimate of the environmental degradation of the lands in the rivulet Una Watershed, Sape-PB-Brazil / Adequação do uso agricola e estimativa da degradação ambiental das terras da microbacia hidrografica do riacho Una, Sape-PB
Increasing in expansion of agricultural activity without take into account land potentiality and restrictions is currently a potential source for environment degradation. This present work aims to evaluate some physical characteristics of lands from Watershed of Una Rivulet in Sapé, PB, Brazil, by utilizing the soil use capability classes, and to determine
Publicado em: 2005
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19. ANÁLISE MULTITEMPORAL DA COBERTURA FLORESTAL DA MICROBACIA DO ARROIO GRANDE, SANTA MARIA, RS / MULTI-TEMPORAL ANALYSIS OF FOREST COVERING FROM ARROIO GRANDE WATERSHED, SANTA MARIA, RS.
This study had as objective to do a multi-temporal analysis from Arroio Grande watershed area, located in Santa Maria, RS, to detect the forest covering changes, its localization and quantification, as well as, to monitor the deforestation and regeneration processes and its main determinant factors. Four satellite images were used: LANDSAT 5 (1987), LANDSAT
Publicado em: 2005
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20. Definição de áreas prioritárias para conservação e preservação florestal por meio da abordagem multicriterial em ambiente SIG. / Definition of priority areas for forest conservation and preservation using multicriterial evaluation with GIS.
The forest fragmentation of the Corumbataí River Basin, SP (Brazil) is a consequence an unplanned process of soil occupation and use. The purpose of this study was to define priority areas for forest conservation and preservation in that river basin, aiming at improve the regional biodiversity. Multicriteria evaluation with Ordered Weighted Average was used
Publicado em: 2005
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21. Estimativa da evapotranspiração da bacia do Ji-Paraná (RO) através de técnicas de sensoriamento remoto e geoprocessamento. / Water balance for the Ji-Paraná basin (RO) using remote sensing and gis.
O balanço hídrico para a bacia do Ji-Paraná (RO) nos anos de 1995 e 1996 foi modelado de modo simples, integrado a um Sistema de Informações Geográficas (SIG), utilizando como entrada, imagens de sensores remotos orbitais, dados climáticos (precipitação) e informações quanto à cobertura e o tipo de solo da bacia. Imagens diárias do sensor AVHRR
Publicado em: 2004
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22. Geoprocessamento e o modelo shift-share na analise das transformações do uso da terra nos municipios do Comite da Bacia Hidrografica do Rio Mogi-Guaçu (SP), 1979 a 2001
This research identified the main factors that influenced the land use changes in counties belonging to the Mogi-Guaçu river Watershed Committe, between 1979 and 2001. The area is located in a strategic geographical region and has a significant agricultural production at the state, national and international levels. This study was carriOOout in three steps.
Publicado em: 2004
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23. Geotechnical mapping and analysis of erosion process at Tuncum creek watershed, São Pedro-SP, scale: 1:10.000 / Mapeamento geotécnico e análise dos processos erosivos na bacia do córrego Tuncum, São Pedro-SP, escala 1:10.000
This work aims to analyze the main factors related to the erosion processes in the Tuncum creek watershed, city of São Pedro-SP, based on the observed geological-geotechnical characteristics in the field and laboratory (soil geotechnical characterization and erodibility tests). It was verified that high susceptibility area to the erosion processes are mainl
Publicado em: 2003
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24. Streamflow and sediment yield simulation within a small watershed through geoprocessing and modeling techniques. / Simulação de escoamento e de produção de sedimentos em uma microbacia hidrográfica utilizando técnicas de modelagem e geoprocessamento.
Hydrological and water quality models have been developed to evaluate the nonpoint source pollution in agricultural watershed. With this objective, SWAT (Soil and Water Assessment Tool) model was applied to simulate the streamflow and sediment yield in Ribeirão dos Marins watershed, on the Piracicaba river basin, Brazil, for the period 1999/2000. The applic
Publicado em: 2002