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dc.contributor.author
Gomez, Andrea Alejandra  
dc.contributor.author
Rodriguez, Leticia Beatriz  
dc.contributor.author
Vives, Luis Sebastián  
dc.date.available
2020-02-14T20:16:05Z  
dc.date.issued
2010-03  
dc.identifier.citation
Gomez, Andrea Alejandra; Rodriguez, Leticia Beatriz; Vives, Luis Sebastián; The Guarani Aquifer System: Estimation of recharge along the Uruguay-Brazil border; Springer; Hydrogeology Journal; 18; 7; 3-2010; 1667-1684  
dc.identifier.issn
1431-2174  
dc.identifier.uri
http://hdl.handle.net/11336/97628  
dc.description.abstract
The cities of Rivera and Santana do Livramento are located on the outcropping area of the sandstone Guarani Aquifer on the Brazil-Uruguay border, where the aquifer is being increasingly exploited. Therefore, recharge estimates are needed to address sustainability. First, a conceptual model of the area was developed. A multilayer, heterogeneous and anisotropic groundwater-flow model was built to validate the conceptual model and to estimate recharge. A field campaign was conducted to collect water samples and monitor water levels used for model calibration. Field data revealed that there exists vertical gradients between confining basalts and underlying sandstones, suggesting basalts could indirectly recharge sandstone in fractured areas. Simulated downward flow between them was a small amount within the global water budget. Calibrated recharge rates over basalts and over outcropping sandstones were 1. 3 and 8. 1% of mean annual precipitation, respectively. A big portion of sandstone recharge would be drained by streams. The application of a water balance yielded a recharge of 8. 5% of average annual precipitation. The numerical model and the water balance yielded similar recharge values consistent with determinations from previous authors in the area and other regions of the aquifer, providing an upper bound for recharge in this transboundary aquifer. © 2010 Springer-Verlag.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
BRAZIL  
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GROUNDWATER RECHARGE/WATER BUDGET  
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NUMERICAL MODELING  
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TRANSBOUNDARY AQUIFER  
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URUGUAY  
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Oceanografía, Hidrología, Recursos Hídricos  
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Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
The Guarani Aquifer System: Estimation of recharge along the Uruguay-Brazil border  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-02-13T18:57:05Z  
dc.journal.volume
18  
dc.journal.number
7  
dc.journal.pagination
1667-1684  
dc.journal.pais
Alemania  
dc.journal.ciudad
Berlin  
dc.description.fil
Fil: Gomez, Andrea Alejandra. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios Hidro-ambientales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Rodriguez, Leticia Beatriz. Universidad Nacional del Litoral. Facultad de Ingenieria y Ciencias Hidricas. Centro de Estudios Hidro-ambientales; Argentina  
dc.description.fil
Fil: Vives, Luis Sebastián. Universidad Nacional del Centro de la Provincia de Buenos Aires. Rectorado. Instituto de Hidrología de Llanuras - Sede Azul. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto de Hidrología de Llanuras - Sede Azul; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.journal.title
Hydrogeology Journal  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10040-010-0630-0  
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info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10040-010-0630-0