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Assessment of the potentiometric drawdown in the Guarani Aquifer System in Bauru/SP by a model of analytical elements

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Názov: Assessment of the potentiometric drawdown in the Guarani Aquifer System in Bauru/SP by a model of analytical elements
Autori: Boico,Vinicius Ferreira, Wendland,Edson, Batista,José Anderson do Nascimento
Zdroj: RBRH v.23 2018
Informácie o vydavateľovi: Associação Brasileira de Recursos Hídricos
Rok vydania: 2018
Zbierka: SciELO Brazil (Scientific Electronic Library Online)
Predmety: Hydrogeology and groundwater, Analytic element method, Water resources management, Guarani Aquifer System
Popis: The recent drought events and the population growth in São Paulo State (Brazil) have caused many municipalities to increase the groundwater exploitation of the Guarani Aquifer System (GAS) for the public water supply. In Bauru City/SP, the extraction of water from this Aquifer is expected to increase from 3699 m3/h (2014) to 4465 m3/h (2034). However, its long-term overexploitation may compromise the amount of available groundwater. The Analytic Element Method was used for groundwater flow modeling at steady-state, which includes the regional flow, the water withdrawal from wells and the main local geological conditions. The hydraulic gradient 0.82 m/km was estimated in the GAS in Bauru City. The potentiometric drawdown in the GAS in Bauru was estimated as 50 m since the beginning of the groundwater exploitation. The drawdown for the groundwater pumping scenario in 2014 is higher than 15 m in Piratininga and Agudos and lower than 10 m in further cities. The expected drawdown for the scenario of 2034 can reach 15 m in comparison with the scenario of 2014, in the North of Bauru City, where the future wells will be located.
Druh dokumentu: article in journal/newspaper
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Jazyk: English
Dostupnosť: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312018000100204
Rights: info:eu-repo/semantics/openAccess
Prístupové číslo: edsbas.DFFCAB1F
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Assessment of the potentiometric drawdown in the Guarani Aquifer System in Bauru/SP by a model of analytical elements
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Boico%2CVinicius+Ferreira%22">Boico,Vinicius Ferreira</searchLink><br /><searchLink fieldCode="AR" term="%22Wendland%2CEdson%22">Wendland,Edson</searchLink><br /><searchLink fieldCode="AR" term="%22Batista%2CJosé+Anderson+do+Nascimento%22">Batista,José Anderson do Nascimento</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: RBRH v.23 2018
– Name: Publisher
  Label: Publisher Information
  Group: PubInfo
  Data: Associação Brasileira de Recursos Hídricos
– Name: DatePubCY
  Label: Publication Year
  Group: Date
  Data: 2018
– Name: Subset
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  Data: SciELO Brazil (Scientific Electronic Library Online)
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Hydrogeology+and+groundwater%22">Hydrogeology and groundwater</searchLink><br /><searchLink fieldCode="DE" term="%22Analytic+element+method%22">Analytic element method</searchLink><br /><searchLink fieldCode="DE" term="%22Water+resources+management%22">Water resources management</searchLink><br /><searchLink fieldCode="DE" term="%22Guarani+Aquifer+System%22">Guarani Aquifer System</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: The recent drought events and the population growth in São Paulo State (Brazil) have caused many municipalities to increase the groundwater exploitation of the Guarani Aquifer System (GAS) for the public water supply. In Bauru City/SP, the extraction of water from this Aquifer is expected to increase from 3699 m3/h (2014) to 4465 m3/h (2034). However, its long-term overexploitation may compromise the amount of available groundwater. The Analytic Element Method was used for groundwater flow modeling at steady-state, which includes the regional flow, the water withdrawal from wells and the main local geological conditions. The hydraulic gradient 0.82 m/km was estimated in the GAS in Bauru City. The potentiometric drawdown in the GAS in Bauru was estimated as 50 m since the beginning of the groundwater exploitation. The drawdown for the groundwater pumping scenario in 2014 is higher than 15 m in Piratininga and Agudos and lower than 10 m in further cities. The expected drawdown for the scenario of 2034 can reach 15 m in comparison with the scenario of 2014, in the North of Bauru City, where the future wells will be located.
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      – Text: English
    Subjects:
      – SubjectFull: Hydrogeology and groundwater
        Type: general
      – SubjectFull: Analytic element method
        Type: general
      – SubjectFull: Water resources management
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      – SubjectFull: Guarani Aquifer System
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