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Journal articles on the topic 'Sobradinho reservoir'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Rossiter, Karina Waleska Lopes, Erika Alves Tavares Marques, Cláudia Ricardo de Oliveira, Elena Matta, and Maria Manuela Queiroz Martins Mantero Morais. "Spatial-temporal evaluation of water quality in Brazilian semiarid reservoirs." Water Practice and Technology 15, no. 1 (2020): 92–104. http://dx.doi.org/10.2166/wpt.2020.001.

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Abstract Reservoirs are used in the Brazilian semiarid for human supply, power generation, irrigated agriculture and more recently, intensive fish farming, the Sobradinho reservoir being the largest of this region. In the last decade, the semiarid region has suffered a strong drought, in opposite direction to the increasing demand of multiple water uses. The present work aims to study the spatial-temporal variation of water quality in two reservoirs in the Brazilian semiarid region (Sobradinho and Itaparica reservoirs). For this, samples were collected in the dry and wet periods between 2011 a

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2

Vieira, Nayara Paula Andrade, Eduardo De Oliveira Bueno, Silvio Bueno Pereira, and Carlos Rogério de Mello. "Water footprint of the Sobradinho hydropower plant, Northeastern Brazil." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 13, no. 3 (2018): 1. http://dx.doi.org/10.4136/ambi-agua.2134.

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Hydroelectricity is responsible for the greatest fraction of the electric energy generated in Brazil. The water footprint of hydropower plants (WFP) is an important indicator of the sustainable and efficient use of water resources. In this context, WFP of the Sobradinho Hydropower Plant was determined for the period from 2003 to 2012, taking into account the reservoir’s historical variation for the flooded area. To accomplish this, monthly series of electric energy production, flooded area, evaporation and evapotranspiration rates were used. Average gross and net evaporation were 2,031 and 1,5

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3

Silva, E. A., M. M. Pedrosa, S. C. Azevedo, G. P. Cardim, and F. P. S. Carvalho. "ASSESSMENT OF SURFACE WATER AT THE SOBRADINHO RESERVOIR UNDER THE EFFECTS OF DROUGHT USING MULTI-TEMPORAL LANDSAT IMAGES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (June 23, 2016): 387–92. http://dx.doi.org/10.5194/isprsarchives-xli-b8-387-2016.

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The matrix of energy generation in Brazil is predominantly hydroelectric power. Consequently, the reservoirs need constant monitoring due to the large volume of artificially dammed water. Images from remote sensing can provide reliable information concerning water bodies. In this paper, we use remote sensing imagery to monitor the Sobradinho dam in three different epochs. The objective was to verify quantitatively the area of the dam’s surface reduced due to the drought of 2015, which was considered the worst in history. The approach used water surface area estimations from bands of Landsat5 a

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4

Silva, E. A., M. M. Pedrosa, S. C. Azevedo, G. P. Cardim, and F. P. S. Carvalho. "ASSESSMENT OF SURFACE WATER AT THE SOBRADINHO RESERVOIR UNDER THE EFFECTS OF DROUGHT USING MULTI-TEMPORAL LANDSAT IMAGES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (June 23, 2016): 387–92. http://dx.doi.org/10.5194/isprs-archives-xli-b8-387-2016.

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The matrix of energy generation in Brazil is predominantly hydroelectric power. Consequently, the reservoirs need constant monitoring due to the large volume of artificially dammed water. Images from remote sensing can provide reliable information concerning water bodies. In this paper, we use remote sensing imagery to monitor the Sobradinho dam in three different epochs. The objective was to verify quantitatively the area of the dam’s surface reduced due to the drought of 2015, which was considered the worst in history. The approach used water surface area estimations from bands of Landsat5 a

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5

Lima, Thais Silva, Ana Lúcia Bezerra Candeias, and Maristela Casé Costa Cunha. "Bioindicadores e Sensoriamento Remoto como Subsídios à Gestão dos Recursos Hídricos no Semiárido Brasileiro (Bioindicators and Remote Sensing as Subsidies for the Management of Water Resources in the Brazilian Semi-arid)." Revista Brasileira de Geografia Física 10, no. 6 (2017): 1974. http://dx.doi.org/10.26848/rbgf.v10.6.p1974-1994.

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Os impactos provenientes das atividades antrópicas sobre os ecossistemas aquáticos têm gerado grandes preocupações quanto à quantidade e qualidade dos recursos hídricos. No semiárido brasileiro, os reservatórios artificiais apresentam importância tanto de ordem social como econômica, entretanto, o processo de degradação tem comprometido seus múltiplos usos, tornando-se um entrave no âmbito da gestão ambiental. Particularmente, o reservatório Sobradinho, localizado no submédio São Francisco, contribui para diferentes usos, tais como, geração de energia, regularização da vazão do rio, abastecime

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6

Ekhtiari, Nikoo, Susanne Grossman-Clarke, Hagen Koch, Werônica Meira de Souza, Reik Donner, and Jan Volkholz. "Effects of the Lake Sobradinho Reservoir (Northeastern Brazil) on the Regional Climate." Climate 5, no. 3 (2017): 50. http://dx.doi.org/10.3390/cli5030050.

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7

Santana, Leika Irabele Tenório de, Ikaro Daniel de Carvalho Barreto, Lidiane da Silva Araújo, and Tatijana Stosic. "Recurrence quantification analysis of São Francisco River flow: hydrological alterations caused by the construction of Sobradinho dam." Research, Society and Development 9, no. 11 (2020): e87491110467. http://dx.doi.org/10.33448/rsd-v9i11.10467.

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We investigated how the construction of the Sobradinho dam and reservoir affected the daily streamflow of the São Francisco River, using the method of Recurrence plot (RP) and Recurrence quantification analysis (RQA) which serves to visualize and quantify the recurrences of the states in the phase space of the dynamic system. We analyzed daily streamflow time series recorded in the fluviometric station Juazeiro that is located downstream of the Sobradinho dam, for the periods before (1943-1972) and after (1980-2009) the dam construction. We observed that in the natural regime, before the dam c

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8

Saraiva, Samuel Vitor, Frede de Oliveira Carvalho, Celso Augusto Guimarães Santos, Lucas Costa Barreto, and Paula Karenina de Macedo Machado Freire. "Daily streamflow forecasting in Sobradinho Reservoir using machine learning models coupled with wavelet transform and bootstrapping." Applied Soft Computing 102 (April 2021): 107081. http://dx.doi.org/10.1016/j.asoc.2021.107081.

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9

Martins, Vitor S., Amy Kaleita, Claudio C. F. Barbosa, Alice C. Fassoni-Andrade, Felipe de Lucia Lobo, and Evlyn M. L. M. Novo. "Remote sensing of large reservoir in the drought years: Implications on surface water change and turbidity variability of Sobradinho reservoir (Northeast Brazil)." Remote Sensing Applications: Society and Environment 13 (January 2019): 275–88. http://dx.doi.org/10.1016/j.rsase.2018.11.006.

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10

Azevedo, Samara Calçado de, Guilherme Pina Cardim, Fernanda Puga, Ramesh P. Singh, and Erivaldo Antonio da Silva. "Analysis of the 2012-2016 drought in the northeast Brazil and its impacts on the Sobradinho water reservoir." Remote Sensing Letters 9, no. 5 (2018): 438–46. http://dx.doi.org/10.1080/2150704x.2018.1437290.

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11

Correia, Magaly De Fatima, Jônatas Costa Bezerra, Leonardo Fagner Ponciano Barbieri, Maria Regina da Silva Aragão, and Weber Andrade Gonçalves. "Mudanças no Uso do Solo e Variações no Padrão de Refratividade Atmosférica: Uma Análise Numérica e Observacional na Área do Polo de Irrigação Petrolina/Juazeiro (Changes in Soil Use and Atmospheric Refractivity Pattern Variations: A Numerical and ...)." Revista Brasileira de Geografia Física 6, no. 4 (2013): 919. http://dx.doi.org/10.26848/rbgf.v6i4.233085.

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Mudanças no padrão de refratividade atmosférica decorrentes de intervenções no regime hidrológico do rio São Francisco são avaliadas neste trabalho. Impactos de alterações nos processos de troca de água e energia entre a superfície e atmosfera são quantificados com base em séries históricas de dados coletados em estações convencionais de superfície situadas na região e em simulações numéricas em alta resolução realizadas com o modelo RAMS (Regional Atmospheric Modeling System). Os resultados mostram que empreendimentos do porte do reservatório de Sobradinho são responsáveis por mudanças signif

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12

da Silva, Marx Vinicius Maciel, Cleiton da Silva Silveira, José Micael Ferreira da Costa, Eduardo Sávio Passos Rodrigues Martins, and Francisco das Chagas Vasconcelos Júnior. "Projection of Climate Change and Consumptive Demands Projections Impacts on Hydropower Generation in the São Francisco River Basin, Brazil." Water 13, no. 3 (2021): 332. http://dx.doi.org/10.3390/w13030332.

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Climate change impacts may influence hydropower generation, especially with the intensification of extreme events and growing demand. In this study, we analyzed future hydroelectric generation using a set of scenarios considering both climate change and consumptive demands in the São Francisco River Basin. This project will increase consumptive demands for the coming decades. Five models from the recently released Coupled Model Intercomparison Project Phase 6 and two scenarios, SSP2-4.5 and SSP5-8.5, were considered to estimate climate change projections. The affluent natural flows, regulated

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13

Gurjão, Carlos Diego de Sousa, Magaly De Fatima Correia, José Batista Chaves Filho, and Maria Regina da Silva Aragão. "Influência do Enos (El Niño-Oscilação Sul) no Regime Hidrológico do Rio São Francisco: uma Análise em Regiões com Fortes Pressões Antrópicas (Influence of Enso (El Niño-Southern Oscillation) in the Hydrological Regime São Francisco River: an Analysis...)." Revista Brasileira de Geografia Física 5, no. 4 (2012): 774. http://dx.doi.org/10.26848/rbgf.v5i4.232857.

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O objetivo deste estudo foi analisar o controle de mecanismos dinâmicos da atmosfera e influências antrópicas na variabilidade de eventos extremos de chuva em regiões de clima semiárido. Enfoque especial foi dado à quantificação da relação entre a chuva-vazão observada no trecho entre os reservatórios das hidrelétricas de Sobradinho e Itaparica. O índice RAI (Rainfall Anomaly Index) foi utilizado para avaliar a intensidade e extensão da área afetada por eventos extremos de chuvas. Os resultados mostram que o regime hidrológico da Bacia Hidrográfica do Rio São Francisco foi fortemente afetado p

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14

Souza-Cruz-Buenaga, F. V. A., S. A. Espig, T. L. C. Castro, and M. A. Santos. "Environmental impacts of a reduced flow stretch on hydropower plants." Brazilian Journal of Biology 79, no. 3 (2019): 470–87. http://dx.doi.org/10.1590/1519-6984.183883.

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Abstract In Brazil, given its privileged hydrology, the unexplored economic use of water resources has many dimensions, such as hydroelectric power. This energy will face increasingly rigorous social and environmental impact assessments (40% of potential is located in the Amazon region). Hydropower inventory studies conducted over decades, with solutions such as ecological river flows, that flood smaller areas and reduce natural river flows modifications, are being reviewed. The river extension from dam to the point where the waters are returned after the powerhouse is known as the Reduced Flo

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15

Rocha, Aline Alves Ferreira da, Natália Carneiro Lacerda dos Santos, Gabriela De Araújo Pinto, Tatiane Do Nascimento Medeiros, and William Severi. "Diet composition and food overlap of Acestrorhynchus britskii and A. lacustris (Characiformes: Acestrorhynchidae) from Sobradinho reservoir, São Francisco river, Bahia State." Acta Scientiarum. Biological Sciences 33, no. 4 (2011). http://dx.doi.org/10.4025/actascibiolsci.v33i4.7240.

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