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Journal articles on the topic "Bauru aquifer"
Stradioto, Marcia Regina, and Hung Kiang Chang. "Diagênese de Arenitos do Grupo Bauru no Estado de São Paulo." Ciência e Natura 42 (December 30, 2020): e88. http://dx.doi.org/10.5902/2179460x42694.
Full textMaldaner, Carlos, Veridiana Martins, Reginaldo Bertolo, and Ricardo Hirata. "Strontium Isotopic Signature of Groundwater from Adamantina Aquifer, Bauru Basin, Brazil." Procedia Earth and Planetary Science 7 (2013): 958–61. http://dx.doi.org/10.1016/j.proeps.2013.03.229.
Full textStradioto, Marcia Regina, Elias Hideo Teramoto, Maria Rita Caetano-Chang, and Hung Kiang Chang. "Water-Rock Interactions in the Bauru Aquifer System – São Paulo State, Brazil." Procedia Earth and Planetary Science 17 (2017): 388–91. http://dx.doi.org/10.1016/j.proeps.2016.12.098.
Full textde Faria, Gabriel Messias Moura, and Giulliana Mondelli. "Interaction between municipal solid waste leachate and Bauru aquifer system: a study case in Brazil." Environmental Science and Pollution Research 24, no. 35 (October 5, 2017): 27553–72. http://dx.doi.org/10.1007/s11356-017-0115-y.
Full textSantos, T. O., and D. M. Bonotto. "222Rn, 226Ra and hydrochemistry in the Bauru Aquifer System, São José do Rio Preto (SP), Brazil." Applied Radiation and Isotopes 86 (April 2014): 109–17. http://dx.doi.org/10.1016/j.apradiso.2013.12.003.
Full textBertolo, Reginaldo, Christine Bourotte, Ricardo Hirata, Leonardo Marcolan, and Ondra Sracek. "Geochemistry of natural chromium occurrence in a sandstone aquifer in Bauru Basin, São Paulo State, Brazil." Applied Geochemistry 26, no. 8 (August 2011): 1353–63. http://dx.doi.org/10.1016/j.apgeochem.2011.05.009.
Full textMaroubo, Lais A., Marcos R. Moreira-Silva, José Jerônimo Teixeira, and Marcos F. S. Teixeira. "Influence of Rainfall Seasonality in Groundwater Chemistry at Western Region of São Paulo State—Brazil." Water 13, no. 11 (May 21, 2021): 1450. http://dx.doi.org/10.3390/w13111450.
Full textBertolo, Reginaldo, Christine Bourotte, Leonardo Marcolan, Sonia Oliveira, and Ricardo Hirata. "Anomalous content of chromium in a Cretaceous sandstone aquifer of the Bauru Basin, state of São Paulo, Brazil." Journal of South American Earth Sciences 31, no. 1 (February 2011): 69–80. http://dx.doi.org/10.1016/j.jsames.2010.10.002.
Full textRussi, Daniel, Giancarlo Lastoria, Guilherme Henrique Cavazzana, Sandra Garcia Gabas, and Andressa Oliva. "WATER TABLE FLUCTUATION METHOD TO ESTIMATE THE RECHARGE OF THE FREE AQUIFER IN THE GUARIROBA RIVER BASIN, CAMPO GRANDE – MS." Ciência e Natura 42 (March 4, 2021): e57. http://dx.doi.org/10.5902/2179460x41465.
Full textTakafuji, Eduardo Henrique de Moraes, Marcelo Monteiro da Rocha, and Rodrigo Lilla Manzione. "Groundwater Level Prediction/Forecasting and Assessment of Uncertainty Using SGS and ARIMA Models: A Case Study in the Bauru Aquifer System (Brazil)." Natural Resources Research 28, no. 2 (August 17, 2018): 487–503. http://dx.doi.org/10.1007/s11053-018-9403-6.
Full textDissertations / Theses on the topic "Bauru aquifer"
Savazzi, Eduardo Angelino. "Determinação da presença de Bário, Chumbo e Crômio em amostras de água subterrânea coletadas no Aqüífero Bauru." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/60/60134/tde-04062009-164102/.
Full textThe occurrence of chemical element in groundwater has a great importance in the world because of the diversity of toxic effects and wide distribution in the environment. Between these chemical elements, we can cite barium, lead and chromium that can induce diverse effects such neurotoxicity and carcinogenicity. It has been considered that the aquifer Bauru has high vulnerability. Therefore the contamination may occur due to the presence of these elements in the soil related to a variety of sources. So, the objectives of this study were: the validation of the method of atomic spectrometry by inductively coupled plasma ICP OES; and the determination of these compounds in samples of groundwater collected in aquifer Bauru. We collected samples in 56 sites located in 55 municipalities in the western region of the state of São Paulo. Almost all the samples analyzed were in accordance with the Brazilian law, for drinking water proposes (Resolução CONAMA n° 396) in relation to the elements. Only 11 sites showed values above to the established: one for Barium and ten for Chromium. The threshold Values allowed for these elements are respectively, of 0.7mg.L-1Ba and 0.05mg.L-1Cr.
Sá, Vitor Ribeiro de. "Aplicação de métodos geoestatísticos no estudo das distribuições espaciais de condutividade hidráulica em áreas do Sistema Aquífero Guarani (SAG) e do Sistema Aquífero Bauru (SAB) no Estado de São Paulo." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/44/44137/tde-17062016-151627/.
Full textHydraulic conductivity (K) is one of the parameters controlling magnitude of the groundwater velocity, and consequently, is one of the most important parameters affecting groundwater flow and solute transport. This study aims to estimate hydraulic conductivity values for two distinct areas, one in the Guarani Aquifer System (GAS) and the other in Bauru Aquifer System (BAS) through three geostatistical methods: ordinary kriging, cokriging and conditional simulation by turning bands. Carrying out statistic treatment of the available data in order to increase the database. The mathematical interpolation method (ordinary kriging) and the stochastic one (conditional simulation by turning bands) are applied to estimate directly the K values, while the methods of ordinary kriging combined with linear regression and cokriging allow to incorporate specific capacity (Q/s) values as a secondary variable. Moreover, the declustering by cells technique is applied for each geostatistical method to evaluate if there is improvement in their performance, which can be accessed by cross validation. The results of these geostatistical approaches indicate that the method of conditional simulation by turning bands with declustering technique is more suitable for GAS area (rho=0.55), whereas the ordinary kriging combined with linear regression method without this technique is for BAS area (rho=0.44). The statistical treatment and declustering technique undertaken in this study revealed to be useful tools for the application of geostatistical methods.
Savazzi, Eduardo Angelino. "Sugestão de valores de referência de qualidade para os elementos químicos cobalto, estanho, fósforo, lítio, molibdênio, níquel, prata, tálio, titânio e vanádio em amostras de água subterrânea coletadas nos Aquíferos Bauru e Guarani, confo." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/60/60134/tde-13122013-105325/.
Full textMetals are found in all living organisms and are responsible for various vital functions and its deficiencies can impair biological functions, but, when present in excessive concentrations can cause deleterious effects on human health or a group of species in an ecosystem. In the present work, we studied the Bauru aquifer that is predominantly freatic and a region of the Guarani Aquifer located in a strip outcropping. Considering that, these water bodies are vulnerable, being exposed to the risk of anthropogenic degradation, due to both agricultural activities and the use of land without criteria. The objectives of this study were to validate the technique for analysis of the chemical elements cobalt, tin, phosphorus, lithium, molybdenum, nickel, silver, thallium, titanium and vanadium using Inductively coupled plasma atomic emission spectroscopy (ICP-OES) with ultrasonic nebulizer; to determine the presence of these elements in samples collected from Bauru and Guarani aquifers and finally, we aimed to propose the Reference Quality Values (RQVs) for each chemical, based on our results. We analyzed 57 and 34 water samples collected from Bauru and Guarani aquifers, respectively, in a total of 88 municipalities in the State of São Paulo, in four distinct periods (March and September 2010 and 2011). Our results showed that the concentrations of the chemicals cobalt, tin, molybdenum, silver, thallium and titanium were below to the quantification limit of the method in all samples collected. For the metals lithium and nickel there were no significant differences between the results collected from the most sites, and the maximum and minimum concentrations are found near the third quartile calculated. The concentration of vanadium in the aquifer water samples was higher than 50?g.L-1V and we suggested that this concentration should be carefully evaluated, in order to verify an increase tendency. We detected a significant variation in phosphorus concentration found in Bauru and Guarani aquifers. So, we also suggested that the origin of this chemical should be investigated to determine if it is natural or anthropogenic in order to propose control actions, as well as the management of water resources.
Safre, Anderson Luiz dos Santos. "Simulação numérica do fluxo das águas subterrâneas na estação ecológica de Santa Barbára/SP." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/154443.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Os usos de técnicas de modelagem em águas subterrâneas vêm sendo amplamente utilizado para entender a variabilidade e as incertezas associadas às condições hidrodinâmicas dos aquíferos. Os modelos numéricos de fluxo das águas subterrâneas são utilizados para representar a distribuição da carga hidráulica, bem como a velocidade e volume de escoamento da água no aquífero. O Estado de São Paulo possui algumas unidades de conservação de proteção integral, chamadas de Estações Ecológicas. Na região hidrográfica do Médio Paranapanema (UGRHI-17), destaca-se a Estação Ecológica de Santa Barbara (EEcSB), localizada sob uma transição do Sistema Aquífero Bauru (SAB) e o Sistema Aquífero Serra Geral (SASG). A principal atividade econômica na região é a agricultura, onde as águas subterrâneas e superficial são captadas para a irrigação. A demanda excessiva pode ameaçar os recursos hídricos e os ecossistemas da região. Desse modo, foi analisado nesse estudo qual o papel da EEcSB como área de garantia de recarga, utilizando a modelagem do fluxo das águas subterrâneas a partir da plataforma FREEWAT, que utiliza o código MODFLOW de diferenças finitas para simulação numérica. Gerou-se uma camada de espessura variada, representado o SAB. A discretização horizontal foi de 7.789 células ativas, com extensões de 100 m x 100 m. Foram utilizados 23 poços de observação, distribuídos por entre as microbacias da EEcSB, para calibração do modelo. A recarga foi dívida em duas zonas para representar a EEcSB ou outros usos da terra no entorno. Os valores variaram entre 15% de recarga da precipitação média. As duas formações do SAB contidas na EEcSB (Adamantina e Marilia) foram representadas por zonas com diferentes condutividades hidráulicas, a primeira com 1,75 m/d e a segunda com 0,9 m/d. A análise de sensibilidade foi realizada automaticamente pelo módulo UCODE_2014 e demonstrou que os parâmetros com maior sensibilidade foram a condutividade hidráulica na zona 1 e a recarga. A calibração teve um erro médio quadrático residual de 0,52 m. O valor total de afluxo simulado pelo modelo em regime permanente é de 66.893,882 m³/d, onde 59.079 m³/d correspondem ao volume escoado pelos drenos, e 7.813 m³/d ao valor de saída pela evapotranspiração. Foram observados três padrões principais de fluxo, com um divisor de águas subterrâneas no centro do domínio simulado. Um padrão de fluxo possui sentido Oeste em direção ao Rio Capivari, apresentando segmentações nas direções de fluxo próximas aos córregos afluentes (Divisa, Santana, Guarantã e Boi). Foram simulados dois cenários, o primeiro com a remoção de 50% da área e o segundo com remoção total da EEcSB. O primeiro cenário apresentou redução de 53,6% no volume da recarga e 47,5% no volume das drenagens, com quedas de até 11m no nível freático. O segundo cenário apresentou uma redução de 61,68% na recarga e de 77,79% na vazão das drenagens com rebaixamentos de até 14m no nível freático.
The uses of groundwater modeling techniques have been widely applied to understand the variability and uncertainties associated with the hydrodynamic conditions of aquifers. Numerical groundwater models are used to represent the hydraulic head distribution, as well as the velocity and volumetric flow. The São Paulo State has some Conservation Units of integral protection, called Ecological Stations. In the Médio Paranapanema Hydrographic region (UGRHI-17), stands out the Santa Bárbara Ecological Station (EEcSB), located under a transition from the Bauru Aquifer System (BAS) and the Serra Geral Aquifer System (SGAS). The main economic activity in the region is agriculture, where the groundwater and surface water are extracted for irrigation. The excessive demand of water threatens the region’s water resources and ecosystems. Thus, in this study, the role of EEcSB as a recharge guarantee area, was analyzed through groundwater flow modeling through the FREEWAT platform, that uses the MODFLOW finite difference code for numerical approximation. One layer of varied thickness, representing the BAS was generated. The horizontal discretization was made of 7,789 active cells, with 100 m x 100 m extension. Twenty three observation wells were used, distributed among EEcSB micro-basins for calibration. The recharge was divided in two zones, to represent the EEcSB and the other land uses in the environment. Recharge values varied around 15% of average rainfall. The two BAS formations (Adamantina and Marillia) at EEcSB were represented by two zones with different hydraulic conductivity, the first with 1.75 m.d-1, and the second with 0.9 m.d-1. The sensitivity analysis was performed automatically by UCODE_2014 module and showed that the parameters with the highest sensitivity were the hydraulic conductivity at zone 1 and the recharge. The calibration had a mean square residual error of 0.52 m. The total value of simulated inflow by the steady state model is 66,893,882 m³.d-1 where outflow was 59,079 m³.d-1 by the leakage into the drains, and 7,813 m³.d-1 by evapotranspiration. Three main flow patterns were observed, with a groundwater divide at the center of the simulated domain. A flow pattern runs westward toward the Capivari Rver, showing segmentations in the flow directions near the tributaries (Divisa, Santana, Guarantã and Boi). Two scenarios were simulated, the first with the removal of 50% of the area and the second one with total removal of the EEcSB. The first scenario presented a reduction of 53.6% in the recharge volume and 47.5% in the drainage volume, with decreases up to 11 m in the water table. The second scenario presented a reduction of 61.685 in recharge and 77.79% n drainage flow with decreases up to 14 m in the water table.
Rios, Ana Paula de Jesus. "Isótopos de O e H na análise de anomalias de bário na região de Marília - SP." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/44/44138/tde-27032017-093451/.
Full textIn the last decade, anomalous concentrations of barium were found in supply wells of Bauru Aquifer System (BAS), with occurrences of levels above the drinking limit (0.7 mg/L). These concentrations were found by CETESB monitoring and some previous studies. Tavares (2013) and Crespi (2013) indicate that contamination in this area has natural origin, from the leaching of carbonate cementation of Marília Formation. Using bibliographic data and expanding the study to the entire region of the Espigão de Marília this study aimed to increase knowledge about this anomaly and try to understand their behavior with aid of isotopic data (O and H) of rain and groundwater. For the understanding of the anomaly, a database was built with information from DAAEE, CETESB and CPRM wells. After the register of this database, some geological sections were made, the groundwater flow conceptual model for the area, and a geological model. After this step, 22 wells were selected for the three sampling campaigns. At the same time was installed in DAAEE of Marília a rain collector that operated from middle of 2014 by the end of 2015, to construct a Local Meteoric Water Line. The wells have been grouped according to the geology, and some patterns were discovered. It was possible to notice that there is a problem about chloride and nitrate contamination. Barium contamination appeared at various points, not being restricted to just one Formation. Without any relation with man-made components, according to the bibliography, this anomaly confirms natural. High levels of barium also appear in places with greater geological variety. The analysis of the isotopes of hydrogen and oxygen of the samples showed that the waters sampled are isotopic depleted compared to the rain. In pumping test was possible to monitor the evolution of the signature with the depth. It is possible to conclude that the barium anomaly is spread all over the Espigão de Marília, in general in wells with filters in Marília and Adamantina Formations, which have a higher content of magnesium, not necessarily having a human influence.
Franzini, Andréa Segura [UNESP]. "Avaliação hidrogeológica em área de assentamento." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/92735.
Full textA interpretação de perfis geofísicos e dados de poços constituiu importante ferramenta para o entendimento do arcabouço hidrogeológico da área do assentamento Margarida Alves, região oeste do Estado de São Paulo. Foram reconhecidas as formações Santo Anastácio e Caiuá, separadas por superfície de discordância regional evidenciada nos perfis geofísicos. As referidas formações constituem unidades aquíferas homônimas que representam o Sistema Aquífero Bauru, caracterizado na área como livre e multi-camadas. Essas unidades litoestratigráficas são constituídas por intercalações de camadas arenosas interdigitadas a camadas areno-siltosas e silto-arenosas, compondo corpos lenticulares de espessuras métrica a decamétrica de pequenas extensões laterais. Esses corpos estão arranjados em padrão de fining upward, sugerindo um ambiente deposicional fluvial. O fluxo regional é em direção SW e tem o ribeirão Nhancá como área de descarga. Na porção ocidental da área, foi identificado um aquífero freático suspenso com águas pouco mineralizadas e baixos teores de sólidos totais dissolvidos. As águas do Sistema Aquífero Bauru apresentam constituição química distintas. No Aquífero Santo Anastácio foram classificadas como bicarbonatadas magnesianas e no Aquífero Caiuá classificadas como bicarbonatadas cálcicas
Geophysical logs and water well data constitute important tool for understanding the hydrogeologic framework of the Margarida Alves settlement, located in western Sao Paulo State. Two lithostratigraphic formations - Santo Anastácio and Caiuá - were recognized and they are separed by an unconformity surface. These formations are water-bearing units of the multi-layered Bauru Aquifer System (SAB). These lithostratigraphic units are composed of sandy layers intercalated with sandy-silty and silty-sand layers, forming lenticular bodies of metric to decametric thickeness with small lateral continuity. These bodies, as evidenced in well logs, are arranged in fining upward pattern, typical of fluvial depositional environment. The regional flow is directed SW and it discharge in the ribeirão Nhancá. In the western portion of the area a perched aquifer has been identified, bearing waters with low levels of total dissolved solids. Two distinct type of groundwater have been identified in the SAB, the Santo Anastácio aquifer is classified as bicarbonated-magnesian water and that of Caiuá Aquifer as bicarbonated-calcium rich waters
Prandi, Emilio Carlos [UNESP]. "Gestão integrada das águas do sistema aquífero Bauru nas bacias hidrográficas dos rios Aguapeí e Peixe / SP." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/102955.
Full textO uso racional das águas de uma região depende do entendimento da sua disponibilidade no tempo e no espaço. Nas Bacias Hidrográficas dos Rios Aguapeí e Peixe, Unidades de Gestão de Recursos Hídricos que compõem um Comitê de Bacias Hidrográficas, as principais demandas são atendidas por águas subterrâneas captadas do Sistema Aquífero Bauru (SAB) e subordinadamente por águas superficiais. A avaliação do comportamento das Unidades Aqüíferas que compõem o Sistema Aquífero Bauru e a inter-relação entre as águas destes aquíferos e as águas superficiais foram os focos deste trabalho. Após a verificação da geologia de superfície e de sub-superfície e da análise dos dados de mais de 500 poços, foram estabelecidos os comportamentos dos aquíferos que compõem o SAB sendo possível estabelecer, em função dos fluxos entre os aquíferos e daí para os corpos de águas superficiais, Blocos de Gestão de Recursos Hídricos. Foram propostos quatro Blocos de Gestão, sendo o Bloco de Gestão 1 (alto Aguapeí e Peixe) as áreas onde o aquífero Marília se sobrepõe ao Adamantina. Neste bloco não há fluxo entre os aquíferos e o Aquífero Marília controla os escoamentos dos rios nos períodos de recessão. No Bloco de Gestão 2 (médio Aguapeí e Peixe) ocorre apenas o Aquífero Adamantina que controla os escoamentos de base. No Bloco de Gestão 3 (baixo Aguapeí e Peixe) ocorrem os Aquíferos Adamantina e Caiuá / Santo Anastácio, isolados um do outro, ora pela Formação Araçatuba, ora por fácies pelíticos da Formação Adamantina que funcionam como aquitardos. No Bloco de Gestão 4 (foz dos rios Aguapeí e Peixe), ocorrem as Formações Caiuá e Santo Anastácio, conectadas hidraulicamente e comportando-se como um único aquífero, depositado sobre os basaltos da Formação Serra Geral e condicionando os fluxos superficiais no período de recessão...
The rational use of waters of an area depends on the understanding of its availability in time and space. In the watersheds of the Aguapeí and Peixe Rivers, the main demands are met by groundwater collected from the Bauru Aquifer System (BAS). The production capacity of the aquifers units that compose the Bauru Aquifer System and the interrelationship between the waters of these aquifers and surface water were the focus of this work. After examining the surface and subsurface geology and incorporating the data from more than five hundred wells, the production of the aquifers that compose the BAS was established and, according to the flows between the aquifers surface waters, it was possible to established the Water Resources Management Blocks. Four Management Blocks were proposed: Management Block 1 (Upper Aguapeí and Peixe) is the areas where the Marília Aquifer overlaps Adamantina Aquifer. In this block there is no cross flow between aquifers and Marília Aquifer controls the river discharge during recession periods. In Management Block 2 (Medium Aguapeí and Peixe) only Adamantina Aquifer controls the flow base. In Management Block 3 (Lower Aguapeí and Peixe) there are Adamantina and Caiuá / Santo Anastacio Aquifers, one isolated from each other, occasionally by the Araçatuba Formation, and at times by pelitic facies of Adamantina Formation that act as aquitard. In Management Block 4 (Mouth of the Aguapeí and Peixe Rivers), there are Caiuá and Santo Anastácio Formations, hydraulically connected and they behave as single aquifer, overlying the basalts of Serra Geral Formation and conditioning the surface flows during the recession periods. The total amount of available water increase from East to West, not only for the largest drainage area of the main rivers, but also due to the aquifers hydraulic characteristics
Prandi, Emilio Carlos. "Gestão integrada das águas do sistema aquífero Bauru nas bacias hidrográficas dos rios Aguapeí e Peixe / SP /." Rio Claro : [s.n.], 2010. http://hdl.handle.net/11449/102955.
Full textBanca: Flávio de Paula e Silva
Banca: Didier Gastmans
Banca: Mara Akie Iratani
Banca: Gré de Araujo Lobo
Resumo: O uso racional das águas de uma região depende do entendimento da sua disponibilidade no tempo e no espaço. Nas Bacias Hidrográficas dos Rios Aguapeí e Peixe, Unidades de Gestão de Recursos Hídricos que compõem um Comitê de Bacias Hidrográficas, as principais demandas são atendidas por águas subterrâneas captadas do Sistema Aquífero Bauru (SAB) e subordinadamente por águas superficiais. A avaliação do comportamento das Unidades Aqüíferas que compõem o Sistema Aquífero Bauru e a inter-relação entre as águas destes aquíferos e as águas superficiais foram os focos deste trabalho. Após a verificação da geologia de superfície e de sub-superfície e da análise dos dados de mais de 500 poços, foram estabelecidos os comportamentos dos aquíferos que compõem o SAB sendo possível estabelecer, em função dos fluxos entre os aquíferos e daí para os corpos de águas superficiais, Blocos de Gestão de Recursos Hídricos. Foram propostos quatro Blocos de Gestão, sendo o Bloco de Gestão 1 (alto Aguapeí e Peixe) as áreas onde o aquífero Marília se sobrepõe ao Adamantina. Neste bloco não há fluxo entre os aquíferos e o Aquífero Marília controla os escoamentos dos rios nos períodos de recessão. No Bloco de Gestão 2 (médio Aguapeí e Peixe) ocorre apenas o Aquífero Adamantina que controla os escoamentos de base. No Bloco de Gestão 3 (baixo Aguapeí e Peixe) ocorrem os Aquíferos Adamantina e Caiuá / Santo Anastácio, isolados um do outro, ora pela Formação Araçatuba, ora por fácies pelíticos da Formação Adamantina que funcionam como aquitardos. No Bloco de Gestão 4 (foz dos rios Aguapeí e Peixe), ocorrem as Formações Caiuá e Santo Anastácio, conectadas hidraulicamente e comportando-se como um único aquífero, depositado sobre os basaltos da Formação Serra Geral e condicionando os fluxos superficiais no período de recessão... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The rational use of waters of an area depends on the understanding of its availability in time and space. In the watersheds of the Aguapeí and Peixe Rivers, the main demands are met by groundwater collected from the Bauru Aquifer System (BAS). The production capacity of the aquifers units that compose the Bauru Aquifer System and the interrelationship between the waters of these aquifers and surface water were the focus of this work. After examining the surface and subsurface geology and incorporating the data from more than five hundred wells, the production of the aquifers that compose the BAS was established and, according to the flows between the aquifers surface waters, it was possible to established the Water Resources Management Blocks. Four Management Blocks were proposed: Management Block 1 (Upper Aguapeí and Peixe) is the areas where the Marília Aquifer overlaps Adamantina Aquifer. In this block there is no cross flow between aquifers and Marília Aquifer controls the river discharge during recession periods. In Management Block 2 (Medium Aguapeí and Peixe) only Adamantina Aquifer controls the flow base. In Management Block 3 (Lower Aguapeí and Peixe) there are Adamantina and Caiuá / Santo Anastacio Aquifers, one isolated from each other, occasionally by the Araçatuba Formation, and at times by pelitic facies of Adamantina Formation that act as aquitard. In Management Block 4 (Mouth of the Aguapeí and Peixe Rivers), there are Caiuá and Santo Anastácio Formations, hydraulically connected and they behave as single aquifer, overlying the basalts of Serra Geral Formation and conditioning the surface flows during the recession periods. The total amount of available water increase from East to West, not only for the largest drainage area of the main rivers, but also due to the aquifers hydraulic characteristics
Doutor
Silva, Rita de Cássia Ferreira da [UNESP]. "Oscilação dos níveis freáticos do Sistema Aquífero Bauru (SAB) em região de cerrado no período de 2010-2015." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/134250.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A crescente utilização dos recursos hídricos tem aumentado a demanda por novas fontes de abastecimento. A exploração dos aquíferos se tornou uma alternativa para captação de água potável em regiões onde a captação das águas superficiais é limitada. Assim, torna-se necessário o monitoramento entre a oferta e a demanda por água, principalmente, em regiões de relevante interesse econômico e de vulnerabilidade ecológica. O objetivo desse trabalho foi analisar as oscilações dos níveis freáticos do Sistema Aquífero Bauru (SAB), na Estação Ecológica de Santa Bárbara (EEcSB) localizada em Águas de Santa Bárbara – estado de São Paulo. As análises foram realizadas a partir de um modelo autorregressivo de series temporais com o software HARTT (Hydrograph Analysis: Rainfall and Time Trend), e sua relação com a vegetação de Cerrado e as espécies exóticas. A partir dos níveis de dezesseis poços instalados na EEcSB coletados entre março de 2010 e março de 2015 e das médias mensais de precipitação coletados a partir de 1987. O comportamento dos níveis freáticos foi analisado em função da sazonalidade e da vegetação. O modelo HARTT demonstrou-se eficiente ao ser capaz prever tendências futuras nas oscilações dos níveis freáticos. As análises demonstraram que a cobertura vegetal não interferiu de forma significativa no ciclo hidrológico para que causasse grandes déficits no lençol freático, uma vez que a mesma contribui na manutenção do ciclo hidrológico na região da EEcSB.
The overuse of water resource has been increasing the demand for new water sources. Groundwater reserves and aquifers have been exploited as an alternative to surface water in water scarcity areas. Therefore, monitoring the water supply and demand is necessary, particularly in regions of economic interest and ecological vulnerability. The aim of this study is to analyze groundwater variations in the Bauru Aquifer System (BAS), located in the Ecological Station of Santa Barbara (EEcSB), São Paulo state. The analyses were performed using an autoregressive time series model using HARTT software (Hydrograph Analysis: Rainfall and Time Trend). We analyzed the relationship among the surface and groundwater levels, the seasonality and vegetation parameters, such as native species from Cerrado biome, and exotic species. The groundwater levels data were collected for five years – 2010 to 2015 – in sixteen wells in EEcSB. We also accessed precipitation information since 1987. Our results showed the HARTT model was accurate to predict future oscillation trends of groundwater levels. The vegetation cover did not affect negatively the hydrological cycle, causing no significant groundwater deficit; on the other hand, the vegetation cover likely explain the maintenance of natural hydrological cycle in the EEcSB region.
Carvalho, Ana Maciel de. "Modelagem numérica como ferramenta para a gestão das águas subterrâneas em São José do Rio Preto - SP." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/44/44138/tde-25092014-101823/.
Full textThe city of São José do Rio Preto (SJRP), located in the northwestern portion of the state of São Paulo, is highly dependent of groundwater for both public and private supply, that justifies the large number of existing wells, which exceeds more than 2000, especially in the Bauru Aquifer System (BAS). Although this resource is essential for the city supply, 79% of the wells do not have grants. The increase of wells, without the correct control, exploring the aquifer can justify and intensify the problems of strong relief in the central region of the urban area by city. Then, this research aimed to develop a computational application how numerical simulation modeling of groundwater flow, to support the rational exploitation of the BAS. For the success of the numerical model, the entire hydrogeological characterization was performed and defined the conceptual model of groundwater flow. The numerical model was calibrated in steady state for two situations: pre-exploitation and current pumping, and then were generated three different future scenarios of pumping: a) exploitation twice larger than the current (Q = 133,206 m³/day); b) exploitation three times larger than the current (Q = 199 809 m³/day); and c) exploitation of only public wells (Q = 39,662 m³/day). There were averages of debasement in the urban area of 15 m, 42 m and 8 m, respectively. Most prominent debasements of groundwater level occurred in the central area of the city, which the concentrates is 80 % of the wells. Therefore, some actions are recommended directed to the well, to protect the aquifer and the user.