Electrical Resistivity Tomography for the identification of the alluvium-Triassic boundary in Medenine Region (SE Tunisia)

Arras, Claudio; Longo, Vittorio; Testone, Valeria; Carletti, Alberto; Buttau, Cristina; Pelo, Stefania Da; Ouessar, Mohamed; Ghiglieri, Giorgio

doi:10.3301/rol.2015.51

Cited by 5 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In respect to MAR projects, geophysical methods have been used as a component of general hydrogeological investigations to obtain information about aquifer heterogeneity (Maliva et al 2015), but also to select MAR sites (Anbazhagan and Ramasamy 1997;Young et al 1999;Taheri 2008;Daesslé et al 2014) and to validate sites recommended for recharge (Tapias et al 2006;Jansen et al 2007;Andrade 2012;Arras et al 2015). Parsekian et al (2014) used ERT and hydrochemical sampling to identify preferential flow paths between infiltration ponds and recovery wells.…”

Section: Introductionmentioning

confidence: 99%

Evaluación multiparamétrica de un esquema MAR (Managed Aquifer Recharge) en un acuífero costero salinizado (Plana de Castellón, España)

Menéndez¹

View full text Add to dashboard Cite

extensión de la pluma de recarga. En concreto, se establece que la pluma de recarga caracterizada como agua dulce (400-600 µS/cm) se extiende 400 m en dirección O-E y 250 m en dirección N-S. Además, las imágenes de ERT definen que una zona de mezcla entre ambas aguas, con CE por debajo de 2500 µS/cm, alcanzó una distancia de 600 m en dirección este. Capítulo Introducción 3 1.1. Presentación La presente investigación desarrolla una idea propuesta en el informe Methodological basis for Water Neutrality Projects. Case study: Colebega Plant (Valencia, Spain) (Morell et al., 2010a) auspiciado por The Coca-Cola Foundation (TCCF), en el contexto de su política de Water Neutrality, que pretende establecer mecanismos de compensación (offset mechanisms) del consumo de agua asociado a las actividades de las instalaciones de la compañía. En el informe mencionado, además de proponer unas bases metodológicas de aplicación general, se propusieron ocho actuaciones, de muy diversa naturaleza, para compensar el consumo de agua de la planta embotelladora COLEBEGA S.A., perteneciente al grupo Coca-Cola European Partners, situada en el término municipal de Quart de Poblet (Valencia, España). De entre las ocho opciones presentadas, se eligió como más apropiada la técnica de recarga artificial para luchar contra la salinización en acuíferos costeros y, a tal fin, TCCF financió durante tres años (2012-2014) el proyecto Facing the seawater intrusion recharging coastal aquifers with regenerated water (Water Recovery Project), liderado por el

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluación multiparamétrica de un esquema MAR (Managed Aquifer Recharge) en un acuífero costero salinizado (Plana de Castellón, España)

Menéndez¹

View full text Add to dashboard Cite

show abstract

Classification Methods for Detecting and Evaluating Changes in Desertification-Related Features in Arid and Semi-arid Environments

Afrasinei

Melis

Buttau

et al. 2017

Water and Land Security in Drylands

View full text Add to dashboard Cite

Land cover, land use, soil salinisation and sand encroachment, which are desertification-indicating features, were integrated into a diachronic assessment, obtaining quantitative and qualitative information on the ecological state of the land, particularly degradation tendencies. In arid and semi-arid study areas of Algeria and Tunisia, sustainable development requires the understanding of these dynamics as it withstands the monitoring of desertification processes. Two different classification methods of salt and sand features have been set up, using historical and present Landsat imagery. Mapping of features of interest was achieved using both visual interpretation and automated classification approaches. The automated one implies a decision tree (DT) classifier and an unsupervised classification applied to the principal components (PC) extracted from Knepper ratios composite. Integrating results with ancillary spatial data, we could identify driving forces and estimate the metrics of desertification processes. In the Biskra area (Algeria), it emerged that the expansion of irrigated farmland in the past three decades has been contributing to an ongoing secondary salinisation of soils, with an increase of over 75%. In the Oum Zessar area (Tunisia), there has been a substantial change in several landscape components in the last decades, related to increased anthropic pressure and settlement, agricultural policies and national development strategies. One of the concerning aspects is the expansion of sand encroached areas over the last three decades of around 27%. This work is partly supported and developed within the WADIS-MAR Demonstration Project, funded by the EU Commission through the SWIM Programme (www.wadismar.eu)

show abstract

Using electrical resistivity tomography to assess the effectiveness of managed aquifer recharge in a salinized coastal aquifer

García-Menéndez

Ballesteros²,

Renau‐Pruñonosa

et al. 2018

Environ Monit Assess

View full text Add to dashboard Cite

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.

show abstract

Electrical Resistivity Tomography for the identification of the alluvium-Triassic boundary in Medenine Region (SE Tunisia)

Cited by 5 publications

References 4 publications

Evaluación multiparamétrica de un esquema MAR (Managed Aquifer Recharge) en un acuífero costero salinizado (Plana de Castellón, España)

Evaluación multiparamétrica de un esquema MAR (Managed Aquifer Recharge) en un acuífero costero salinizado (Plana de Castellón, España)

Classification Methods for Detecting and Evaluating Changes in Desertification-Related Features in Arid and Semi-arid Environments

Using electrical resistivity tomography to assess the effectiveness of managed aquifer recharge in a salinized coastal aquifer

Contact Info

Product

Resources

About