scholarly journals Electrical resistivity tomography monitoring of two managed aquifer recharge ponds in the alluvial aquifer of the Llobregat River (Barcelona, Spain)

2020 ◽  
Vol 18 (4) ◽  
pp. 353-368 ◽  
Author(s):  
Alex Sendrós ◽  
Mahjoub Himi ◽  
Raúl Lovera ◽  
Luis Rivero ◽  
Ruben Garcia‐Artigas ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Electrical Resistivity Tomography ◽  
Managed Aquifer Recharge ◽  
Alluvial Aquifer ◽  
Aquifer Recharge ◽  
Resistivity Tomography ◽  
Llobregat River

Analysis and interpretation of electrical resistivity tomography data of alluvial aquifer of Tamanrasset Southern Algeria

2018 ◽  
Author(s):  
Aziez Zeddouri ◽  
Abderrahmane Ben Elkheir ◽  
Samia Hadj-Said ◽  
Jean-Denis Taupin ◽  
Christian Leduc ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Electrical Resistivity Tomography ◽  
Alluvial Aquifer ◽  
Resistivity Tomography ◽  
Tomography Data

scholarly journals High-Resolution Electrical Resistivity Tomography (ERT) to Characterize the Spatial Extension of Freshwater Lenses in a Salinized Coastal Aquifer

Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 1067 ◽  
Author(s):  
Nicolas Greggio ◽  
Beatrice Giambastiani ◽  
Enrico Balugani ◽  
Chiara Amaini ◽  
Marco Antonellini
Keyword(s):  
Electrical Resistivity ◽  
High Resolution ◽  
Electrical Resistivity Tomography ◽  
Decision Makers ◽  
Shallow Aquifer ◽  
Electrode Spacing ◽  
Coastal Zones ◽  
Aquifer Recharge ◽  
Resistivity Tomography ◽  
Freshwater Lenses

High-resolution electrical resistivity tomography (ERT) with electrode spacing of 1 m proved to be an effective methodology to characterize ephemeral, sparse, and discontinuous freshwater lenses within the almost completely salinized shallow aquifer of the low coastal zone near Ravenna. ERT profiles with a vertical resolution of 0.25–0.5 m, once calibrated with groundwater data (water table depth and electrical conductivity) collected in multi-level sampler systems at the same spatial resolution, are reliable and provide repeatable measurements in time. The ERT methodology allows for fast data acquisition over large areas and it also permits the study of the evolution in time of freshwater availability in coastal zones, which is important for local ecosystems and soil resources. This makes high-resolution ERT a valid tool to aid local stakeholders and decision makers to effectively manage freshwater lenses, and guarantee their preservation or augmentation by means of managed aquifer recharge.

scholarly journals Geophysical Characterization of Hydraulic Properties around a Managed Aquifer Recharge System over the Llobregat River Alluvial Aquifer (Barcelona Metropolitan Area)

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3455
Author(s):  
Alex Sendrós ◽  
Mahjoub Himi ◽  
Raúl Lovera ◽  
Lluís Rivero ◽  
Ruben Garcia-Artigas ◽  
...  
Keyword(s):  
Metropolitan Area ◽  
Cross Sections ◽  
Artificial Recharge ◽  
Surface Water Quality ◽  
Managed Aquifer Recharge ◽  
Alluvial Aquifer ◽  
Aquifer Recharge ◽  
Double Ring ◽  
Infiltration Tests ◽  
Llobregat River

Managed aquifer recharge using surface or regenerated water plays an important role in the Barcelona Metropolitan Area in increasing storage volume to help operators cope with the runoff variability and unexpected changes in surface water quality that are aggravated by climate change. The specific aim of the research was to develop a non-invasive methodology to improve the planning and design of surface-type artificial recharge infrastructures. To this end, we propose an approach combining direct and indirect exploration techniques such as electrical resistivity tomography (ERT), frequency domain electromagnetics and data from double-ring infiltration tests, trial pits, research boreholes and piezometers. The ERT method has provided much more complete and representative information in a zone where the recharge project works below design infiltration rates. The geometry of the hydrogeological units and the aquifer-aquiclude contact are accurately defined through the models derived from the interpretation of ERT cross-sections in the alluvial aquifer setting. Consequently, prior to the construction of recharge basins, it is highly recommended to conduct the proposed approach in order to identify the highest permeability areas, which are, therefore, the most suitable for aquifer artificial recharge.

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