Integrated Geophysical Methods for Shallow Aquifers Characterization and Modelling

Alcalá, Francisco; Paz, Maria Catarina; Martínez‐Pagán, Pedro; Santos, Fernando Monteiro

doi:10.3390/app12052271

Cited by 4 publications

(2 citation statements)

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“…GPR for hydrogeological studies has mainly embraced the definition of near-surface aquifer geometries and stratigraphic information [177][178][179][180][181], as well as the determination of the water table depth and volumetric water content [182][183][184][185]. While the determination of the subsurface geometry is a well-established procedure and can be quantitatively extracted from traditional radargrams, the estimation of soil dielectric properties is performed through the solution of specific petrophysical relationships, which link the measured permittivity properties to the material porosity and moisture content.…”

Section: Gpr Applications In Environmental Investigationsmentioning

confidence: 99%

From Its Core to the Niche: Insights from GPR Applications

2022

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Thanks to its non-destructive, high-resolution imaging possibilities and its sensitivity to both conductive and dielectric subsurface structures, Ground-Penetrating Radar (GPR) has become a widely recognized near-surface geophysical tool, routinely adopted in a wide variety of disciplines. Since its first development almost 100 years ago, the domain in which the methodology has been successfully deployed has significantly expanded from ice sounding and environmental studies to precision agriculture and infrastructure monitoring. While such expansion has been clearly supported by the evolution of technology and electronics, the operating principles have always secured GPR a predominant position among alternative inspection approaches. The aim of this contribution is to provide a large-scale survey of the current areas where GPR has emerged as a valuable prospection methodology, highlighting the reasons for such prominence and, at the same time, to suggest where and how it could be enhanced even more.

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Section: Gpr Applications In Environmental Investigationsmentioning

confidence: 99%

From Its Core to the Niche: Insights from GPR Applications

2022

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“…The electrical resistivity tomography (ERT) method is a geophysical technique with many applications, including marine [11], geotechnical, environmental [12], and composition of the soil, including building foundation prospecting, archaeological prospecting [13], landfill delineation [14], contamination [15], and chemical tracer studies [16,17]. This technique is based on measuring the electrical resistivity of soil [18], which is dependent on the geometry, pore size, and total porosity of the soil [19].…”

Section: Introductionmentioning

confidence: 99%

Environmental Monitoring of Pig Slurry Ponds Using Geochemical and Geoelectrical Techniques

Capa-Camacho,

Martínez-Pagán,

Acosta

et al. 2024

Water

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The efficient management of slurry, which is a by-product rich in nutrients derived from feces, urine, cleaning water, and animal waste that stands out for its high concentration of nutrients such as nitrogen, phosphorus, and potassium, is of vital importance, highlighting the importance of slurry management in storage ponds, which. The Murcia–Spain region has an important number of pig farms. Hence, infrastructures dedicated to managing by-products are necessary to prevent environmental pollution and eutrophication of groundwater. The aim of a recent study was to evaluate the relationship between electrical values and geochemical parameters of pig slurry stored in a pond using ERT and geochemical analysis. In addition, the study was designed to monitor the pond to determine the geochemical characteristics of the slurry and to assess the risk of lateral contamination. The study results indicate a noticeable decrease in electrical resistivity values at 0.4 and 1.6 m depth in surveys 1 and 2. The reduction ranges from 50 to 100 percent. This paper presents a new method for monitoring slurry ponds using electrical resistivity tomography. This non-invasive method provides detailed information on the distribution and characteristics of the fluids, as well as a clear picture of the electrical resistivity of the subsurface.

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