Next Article in Journal
Modeling Approach for Water-Quality Management to Control Pollution Concentration: A Case Study of Ravi River, Punjab, Pakistan
Previous Article in Journal
Adaptation of an Existing Intake Structure Caused by Increased Sediment Level
Previous Article in Special Issue
Microbial Function and Hydrochemistry within a Stratified Anchialine Sinkhole: A Window into Coastal Aquifer Interactions
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Water 2018, 10(8), 1067; https://doi.org/10.3390/w10081067

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

1
CIRI EA—Interdepartmental Centre for Industrial Research on Energy and Environment, University of Bologna, 48123 Ravenna, Italy
2
BIGEA—Biological, Geological, and Environmental Sciences, University of Bologna, 40126 Bologna, Italy
3
CIRSA—Interdepartmental Research Centre for Environmental Sciences, 48123 Ravenna, Italy
*
Author to whom correspondence should be addressed.
Received: 26 July 2018 / Revised: 6 August 2018 / Accepted: 8 August 2018 / Published: 10 August 2018
(This article belongs to the Special Issue Salinization of Coastal Aquifer Systems)
Full-Text   |   PDF [4540 KB, uploaded 10 August 2018]   |  

Abstract

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. View Full-Text
Keywords: high resolution electrical resistivity tomography (ERT); coastal aquifer; freshwater lenses; salinization; dune high resolution electrical resistivity tomography (ERT); coastal aquifer; freshwater lenses; salinization; dune
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Greggio, N.; Giambastiani, B.M.S.; Balugani, E.; Amaini, C.; Antonellini, M. High-Resolution Electrical Resistivity Tomography (ERT) to Characterize the Spatial Extension of Freshwater Lenses in a Salinized Coastal Aquifer. Water 2018, 10, 1067.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top