Reservoir Sedimentation
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Sedimentação de nutrientes e material particulado em reservatório sob influência de atividades de piscicultura no semiárido do Rio Grande do Norte
Nutrient levels in water reservoirs have been increasing over the years worldwide and fish farming is one of the activities with the potential to cause negative impacts on these environments. Thus, the sedimentation of the main nutrients was evaluated in a reservoir as well as the contribution of aquaculture in raising these rates. The results indicated a si
Quím. Nova. Publicado em: 2014
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2. 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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3. Avaliação da composição isotópica do chumbo e da distribuição elementar nos sedimentos da represa Pedro Beicht, Cotia, São Paulo / Evaluation of isotopic composition of lead and elemental distribution in the sediments of the Pedro Beicht reservoir, Cotia, São Paulo
The water reservoir named Pedro Beicht provides water to five hundred thousand people in the metropolitan region of São Paulo city and is known by its excellent aquatic system quality. It is managed by Sanitation Company of São Paulo State (SABESP) and is surrounded by the Forest Reserve Morro Grande (RFMG). The RFMG was created in 1979 to ensure flora and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2011
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4. Limnological aspects of Little AÃudagem in Semiarid: Case Study of Dams Settlement May 25, Ce-Madalena / Aspectos limnolÃgicos da pequena aÃudagem no semiÃrido: estudo de caso dos aÃudes do Assentamento 25 de Maio, Madalena-Ce
The studies for small reservoirs in the semiarid northeast are still scarce, mainly in relation to water quality. This research aimed to discover the dynamic processes that occur in small reservoirs, to evaluate the multiple uses, the trophic state and water quality in small reservoirs representing the settlement on May 25. Carried out the systematic monitor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/01/2011
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5. Hydrodynamic modeling and morphological analysis of Lake Água Preta: one of the water sources of Belém-PA-Brazil
The main contribution from this paper includes the hydrodynamic modeling and morphological analysis of Lake Água Preta in Belém city, Pará State, Brazil. The lake bathymetry was taken through the data provided by COSANPA (the local sanitation and water supply company) dating back to 1975, and from a 2009 field study. Both bathymetries produced two terrain
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-06
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6. AnÃlise do Assoreamento de um Pequeno ReservatÃrio: Estudo de caso AÃude BoqueirÃo, Aiuaba, CE / Sedimentation analysis of a small reservoir: Case study reservoir BoqueirÃo, Aiuaba, CearÃ.
A multiplicaÃÃo da quantidade de pequenos reservatÃrios no semiÃrido nordestino provoca um impacto considerÃvel na disponibilidade hÃdrica das mÃdias e grandes bacias hidrogrÃficas, tornando-se assim, um impeditivo no bom gerenciamento deste recurso. Por outro lado, a pequena aÃudagem tem um importante papel com a retenÃÃo de sedimentos oriundos d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/02/2010
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7. NUMERICAL AND COMPUTATIONAL SIMULATION OF LOW DENSITY TURBIDITY CURRENTS FOR BASIN SEDIMENTATION / SIMULACAO NUMERICA E COMPUTACIONAL DE CORRENTES DETURBIDEZ DE BAIXA DENSIDADE PARA SEDIMENTACAO DE BACIAS
Turbidity currents occur in both natural and man-made situations. In agreement with some researchers, most of the world¿s oil reserves are stored in hydrocarbon reservoir built by turbidity systems. Because of the importance of these currents, this work proposes a consistent and efficient numerical method for simulations of turbidity currents for basin sedi
Publicado em: 2010
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8. Simulação numérica aplicada ao assoreamento do reservatório Represa Velha / Numerical simulation for sedimentation on the Represa Velha reservoir
Todos os cursos de água carream sedimentos com maior ou menor intensidade, sendo responsáveis pela redução da calha de rios e volume de reservatórios. O assoreamento dos reservatórios reduz sua vida útil, comprometendo os sistemas de geração de energia, de navegação, de irrigação, gerando problemas de ordem ambiental. Neste contexto, subsídios
Publicado em: 2009
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9. Analise de facies e modelo paleodeposicional da plataforma siliciclastica ordoviciana da Pre-Cordilheira Argentina / Facies analisys and paleodepositional model of the ordovician siliciclastic shelf of the Argentine Precordillera
This work consists in the study of sedimentological and paleodepositional features of four Ordovician lithostratigraphic units of the Precordillera Argentina: Portezuelo del Tontal Formation (PTF), Sierra de La Invernada Formation (SIF), Gualcamayo Formation (GF) and Los Azules Formation (LAF). The PTF is represented by alternating fine- to very fine grained
Publicado em: 2009
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10. Padrões limnológicos e do fitoplâncton nas fases de enchimento e estabilização dos reservatórios do APM Manso e AHE Jauru (Estado de Mato Grosso)
This thesis was carried out during the filling and stabilization phases of the reservoirs of APM Manso (Dec/99-Apr/03) and AHE Jauru (Oct/02-Apr/04), in the state of Mato Grosso. It mostly aimed to identify limnological patterns similar to both reservoirs; analyze the influences of river basin, residence time and decomposition process on these patterns; veri
Publicado em: 2007
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11. The study transport of suspended sediment in the descoberto river watershed. / Estudo do transporte de sedimentos em suspensão na Bacia do Rio Descoberto
In this study, sedimentometric data were collected in streams located upstream and downstream the Descoberto reservoir, with the objective of improving the knowledge about the sediment transport in this watershed. Monthly data collection campaigns from June-2005 to February-2006 were carried out to determine suspended sediments loads using a depth sampler, t
Publicado em: 2006
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12. Análise do aporte, da taxa de sedimentação e da concentração de metais na água, plâncton e sedimento do reservatório de Salto Grande, Americana - SP. / Analysis of the input, sedimentation rate and metal concentration on the water, plankton and sediment of Salto Grande reservoir, Americana - SP.
Salto Grande reservoir is located in the city of Americana, São Paulo state, in a region with high industrial and agriculture activity and elevated demographic density, witch caused on the last decades, changes in the landscape, natural resources and water quality, including eutrophication and contamination by metals. The goal of this work is to determine t
Publicado em: 2002