A multi-parameter study of groundwater–seawater interactions along Partido de La Costa, Buenos Aires Province, Argentina

Carretero, Silvina Claudia; Rapaglia, John; Perdomo, Santiago; Martínez, Carlos Páez; Capítulo, Leandro Rodrigues; Gómez, Lucía; Kruse, Eduardo Emilio

doi:10.1007/s12665-019-8532-5

Cited by 9 publications

(6 citation statements)

References 30 publications

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“…Se han utilizado dos métodos: piezómetros y 222 Rn como trazador pudiéndose realizar una cuantificación. Ambas metodologías han sido aplicadas anteriormente en el área de estudio por Carretero et al (2019Carretero et al ( , 2021. En el primer caso sólo se aborda el tema de la SGD para el Partido de La Costa, y en el segundo se analiza la relación entre la actividad del 222 Rn y sus variaciones asociadas al ciclo hidrológico en ambos sectores (PDLC-Pinamar).…”

Section: Métodosunclassified

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Análisis de la descarga submarina en dos sectores de la costa oriental de la Provincia de Buenos Aires, Argentina

Carretero,

Rapaglia,

Rodrigues Capítulo

et al. 2023

AGL

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La descarga de agua dulce subterránea en el mar (SGD: sigla en inglés) es un proceso natural que ocurre en la interfase continente-océano y es de importancia en la dinámica costera. En la costa oriental de la provincia de Buenos Aires, Argentina (Partidos de La Costa y Pinamar) se planteó como objetivo detectar la descarga de agua dulce desde el acuífero arenoso hacia el Océano Atlántico aplicando balance de masas de 222Rn como trazador y mapas de flujo subterráneo. Se midió la actividad del 222Rn en el agua subterránea en perforaciones y en transectas a 300 m de la línea de costa. En base a la obtención de la profundidad en los pozos de la red de monitoreo existente se construyeron mapas isofreáticos. La SGD para La Costa resultó en 0,37 m3/m/d según la hidrodinámica y 3,5 m3/m/d según el radón. Para Pinamar estos valores fueron de 0,66 y 0,55 m3/m/d respectivamente. La presencia de sedimentos en suspensión del Río de la Plata tendría influencia sobre las mediciones de radón incrementando los valores de descarga en La Costa, mientras que en Pinamar la ausencia de los mismos permitió la obtención de resultados similares por ambas metodologías.

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Section: Métodosunclassified

“…A pesar de las asunciones realizadas y la simplificación de la ecuación para la obtención de la SGD el método ha permitido arribar a valores que serán discutidos en los resultados y que para el caso del PDL se encuentran publicados en Carretero et al (2019).…”

Section: F Sgd = F Atm + F Decunclassified

Análisis de la descarga submarina en dos sectores de la costa oriental de la Provincia de Buenos Aires, Argentina

Carretero,

Rapaglia,

Rodrigues Capítulo

et al. 2023

AGL

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“…Zhan et al [43] proved that the ERT method could be used as an effective tool to map the distribution of gas and leachate in a large landfill site and showed that the relationship between the resistivity and moisture content of waste samples could be fitted according to Archie's law. Carretero et al [44] obtained a 2D model of an area through ERT, identified the high-resistance area below the seabed, and determined that it was a mixed area of fresh water and saltwater. In this study, we chose ERT as the method to detect pollution.…”

Section: Introductionmentioning

confidence: 99%

Fingerprinting Organochlorine Groundwater Plumes Based on Non-Invasive ERT Technology at a Chemical Plant

Yan

Song

et al. 2022

Applied Sciences

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The refined characterization of groundwater pollution is an important prerequisite for efficient and effective remediation. A high-resolution survey of a contaminated site in a chemical pesticide factory was carried out using non-invasive geophysical sensing technology. Modern electrical resistivity tomography (ERT) technology can rapidly identify and characterize the groundwater pollution plumes of organochlorine pesticides, which was demonstrated in this study by the significantly abnormal resistivity sensing in stratums and aquifers under the raw material tanks, production, and loading areas. The results were found to be highly consistent with the ERT sensing results achieved via incorporating borehole sampling and hydrochemical analysis. With high abnormal resistivity, the range of contamination within the profile was characterized on the meter level. We also unexpectedly found new pollution and explained its source. This study confirmed that the modern refined ERT method has a high feasibility and accuracy in characterizing the spatial distribution of organochlorine pesticide plumes in groundwater.

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“…The geotechnical characterization of submerged lithological formations prior the construction of infrastructures (Dahlin & Loke, 2018; Kwon et al, 2005; D.F. Rucker & Noonan, 2013), the parametric evaluation of groundwater‐seawater interactions (Carretero et al, 2019) and the monitoring of artificial solute tracers within streambed sediments (Clemenence et al, 2017) also show the variability of such surveys. Lee et al (2018) presented a comprehensive methodology for the real time tracking of underwater moving objects in relatively large investigation depths as a complementary approach to acoustic methods.…”

Section: Introductionmentioning

confidence: 99%

Practical considerations for shallow submerged archaeological prospection with 3‐D electrical resistivity tomography

Papadopoulos

Oikonomou

Simyrdanis

et al. 2021

Archaeological Prospection

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Direct current electrical resistivity method has experienced significant breakthroughs during the last decades with the development of advanced instrumentation and sophisticated inversion algorithms. These have substantially benefitted the field of archaeological prospection to extract quantitative information for the buried archaeological material in a complete three-dimensional (3-D) context. The obvious continuation of past human occupation and associated settlements in the ultra-shallow part of coastal zones generated the necessity to compile methodologies for mapping submerged cultural assets. This study investigates the efficiency of dynamic floating and submerged 3-D Electrical Resistivity Tomography (ERT) for mapping archaeological relics buried beneath the sediments in ultra-shallow marine environments. Extensive testing is performed through numerical simulation and 3-D inversion of synthetic apparent resistivity tomographic data. The generic resistivity model including a complex resistive structure embedded in a stratified conductive environmental regime simulated typical scenario of an archaeological feature submerged below the sea water layer. Different array configurations including Dipole-Dipole (DD), Gradient (GRD), Reciprocal Wenner (RecWEN) and Wenner-Schlumberger (WS), which can be appropriately programmed for continuous off-shore measurements with associated multichannel resistivity instruments, are validated in order to determine the most efficient one for such surveys. Densely spaced multiple parallel two-dimensional (2-D) ERT lines along a single direction composed the survey layout to extract the 3-D apparent resistivity data set for the different electrode arrays using a 3-D finite element program. The synthetic tomographic data were corrupted with 3% Gaussian noise and inverted with an iterative smoothness constrained inversion algorithm. The comparative results from the various tested arrays manifest the superiority of the DD in reconstructing the optimum resistivity inversion model for both the floating and submerged survey modes. Additional tests were made concerning the resolving capabilities of ERT with variable seawater thickness and target characteristics.Although accurate 'a priori' information regarding the water resistivity and thickness are essential for constraining the 3-D inversion, erroneous estimation of these parameters can result to misleading results, especially for submerged survey modes.The simulation of floating and submerged 3-D ERT surveys through synthetic modelling documented the benefits of such approach in reconstructing structured cultural

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A multi-parameter study of groundwater–seawater interactions along Partido de La Costa, Buenos Aires Province, Argentina

Cited by 9 publications

References 30 publications

Análisis de la descarga submarina en dos sectores de la costa oriental de la Provincia de Buenos Aires, Argentina

Análisis de la descarga submarina en dos sectores de la costa oriental de la Provincia de Buenos Aires, Argentina

Fingerprinting Organochlorine Groundwater Plumes Based on Non-Invasive ERT Technology at a Chemical Plant

Practical considerations for shallow submerged archaeological prospection with 3‐D electrical resistivity tomography

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