Using electrical resistivity tomography to assess the effectiveness of managed aquifer recharge in a salinized coastal aquifer
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Otros documentos de la autoría: García-Menéndez, Olga; Ballesteros, Bruno J.; Renau-Pruñonosa, Arianna; Morell, Ignacio; Mochales, Tania; Ibarra, Pedro; Rubio, Félix M.
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https://doi.org/10.1007/s10661-017-6446-9 |
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Título
Using electrical resistivity tomography to assess the effectiveness of managed aquifer recharge in a salinized coastal aquiferAutoría
Fecha de publicación
2018-02Editor
SpringerCita bibliográfica
GARCÍA MENÉNDEZ, Olga; BALLESTEROS, Bruno J.; RENAU PRUÑONOSA, Arianna; MORELL EVANGELISTA, Ignacio; MOCHALES, Tania; IBARRA, Pedro; RUBIO, Félix M. (2018).Using electrical resistivity tomography to assess the effectiveness of managed aquifer recharge in a salinized coastal aquifer. Environmental Monitoring and Assessment, v. 190, n. 100, p. 1-19Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://link.springer.com/article/10.1007/s10661-017-6446-9Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Over 40 years, the detrital aquifer of the Plana de Castellón (Spanish Mediterranean coast) has been subjected to seawater intrusion because of long dry periods combined with intensive groundwater exploitation. Against ... [+]
Over 40 years, the detrital aquifer of the Plana de Castellón (Spanish Mediterranean coast) has been subjected to seawater intrusion because of long dry periods combined with intensive groundwater exploitation. Against this backdrop, a managed artificial recharge (MAR) scheme was implemented to improve the groundwater quality. The large difference between the electrical conductivity (EC) of the ambient groundwater (brackish water due to marine intrusion) and the recharge water (freshwater) meant that there was a strong contrast between the resistivities of the brackish water saturated zone and the freshwater saturated zone. Electrical resistivity tomography (ERT) can be used for surveying similar settings to evaluate the effectiveness of artificial recharge schemes. By integrating geophysical data with lithological information, EC logs from boreholes, and hydrochemical data, we can interpret electrical resistivity (ER) with groundwater EC values and so identify freshwater saturated zones. Using this approach, ERT images provided a high-resolution spatial characterization and an accurate picture of the shape and extent of the recharge plume of the MAR site. After 5 months of injection, a freshwater plume with an EC of 400–600 μS/cm had formed that extended 400 m in the W-E direction, 250 m in the N-S direction, and to a depth of 40 m below piezometric level. This study also provides correlations between ER values with different lithologies and groundwater EC values that can be used to support other studies. [-]
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Environmental Monitoring and Assessment February (2018), v. 190, n. 100Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
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