Characterization of seawater intrusion dynamics under the influence of hydro-meteorological conditions, tidal oscillations and melioration system operative regimes to groundwater in Neretva valley coastal aquifer system

Lovrinović, Ivan; Srzić, Veljko; Aljinović, Iva

doi:10.1016/j.ejrh.2023.101363

Cited by 5 publications

(3 citation statements)

References 65 publications

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“…The environmental threats that the seawater intrusion phenomenon poses have been investigated by several scientists from around the world. Seawater incursions are a significant cause of groundwater pollution in coastal areas [7]. Rising sea levels and greater groundwater pumping may make saltwater intrusion in groundwater aquifers worse.…”

Section: Introductionmentioning

confidence: 99%

Study on Impact of Climate Change and Sea Water Intrusion on Water Quality Parameters of Coastal Area – GIS Based Research

Kumar M.,

R.,

et al. 2024

Pol. J. Environ. Stud.

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This study aims to evaluate Rameshwaram's groundwater quality in terms of seawater intrusion. The pH ranged from 6.87 to 7.82, and The EC varied between 0.81 and 13.73, 90% below the allowable limit, TDS observed at 240 mg/L to 4103 mg/L with a significance of 70% in the permitted threshold, The range of the Ca hardness was 60 mg/L to 355 mg/L, with 58% exceeding the limit, the range of the Mg hardness was 50 mg/L to 560 mg/L, with 93% surpassing the permitted limit, and the range of the TH ranged from 180 mg/L to 915 mg/L, with 30% exceeding the limit. F-concentrations range from 1 mg/L to 1.78 mg/L, showing 35% are at harmful fluoride levels, while TS concentrations range from 330 mg/L to 4100 mg/L, with over 65% above the limit. According to statistical explanations by rotating component matrix, component 1 achieved 48.53%, component 2 reached 67.64%, and component 3 reached 90.52%. Under Kaiser normalization, the minimum Varimax value fell within the range of 0.81-330.0. The range of possible Varimax values is 8.73 to 25000.60. The standard deviation varied from 0.3264 to 3867.6154, while the mean deviation ranged from 1.8373 to 1661.0150. An identity of 65% found in one group remaining 35% in another cluster. GIS-based spatiotemporal values of water quality metrics confirm the intervention of sea water intrusion in coastal zone. In conclusion, investigation of water quality in the coastal region exhibits the seawater intrusion problem with supporting results of statistical analysis and GIS mapping.

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Section: Introductionmentioning

confidence: 99%

Study on Impact of Climate Change and Sea Water Intrusion on Water Quality Parameters of Coastal Area – GIS Based Research

Kumar M.,

R.,

et al. 2024

Pol. J. Environ. Stud.

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“…Despite the shortcomings of long‐screen wells, the resulting EC profiles are widely used around the world to assess freshwater‐seawater interactions. Examples of regional‐scale interpolations of the seawater extent using EC profiles from long‐screen wells include investigations of coastal aquifers in Australia (McMahon, 2004), Korea (Lee & Song, 2007), England (Tellam et al., 1986), Israel (Tal et al., 2019), USA (Prinos, 2019), Italy (Polemio et al., 2009), Spain (Stein et al., 2020), Croatia (Lovrinović et al., 2023) and China (X. Zhang et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Salinity Profiles in Coastal Aquifers: A Characterization Framework for Field Measurements

Huang,

Werner,

Solórzano‐Rivas

et al. 2024

Water Resources Research

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The freshwater‐seawater mixing zone (“interface”) is affected by tides, seawater intrusion, submarine groundwater discharge and aquifer heterogeneities. Our current understanding is based primarily on theoretical studies involving numerical simulation and sand‐tank experimentation, with limited field analyses of interface characteristics in coastal aquifers that serve as important freshwater reservoirs. The most common field evidence for interface characteristics is derived from electrical conductivity (EC) profiles, often obtained from long‐screen wells. However, the EC profiles from long‐screen wells have been assessed previously using only simple statistics like the depth to 50% of seawater concentration. This study introduces a methodology for characterizing EC profiles using curve fitting and objective assessment of multiple interface attributes, with application to 170 EC profiles from the Lower Burdekin Delta, Australia. The adopted fitting function showed an excellent match (mean R2 = 0.99). Fitting parameters were linked to the curvatures of transitions from fresh to brackish water and from brackish water to seawater, the elevation and gradient of the mid‐salinity value, and the thickness of the mixing zone. Field EC profiles showed approximately linear relationships between head changes averaged over the previous 5 months and the elevation of 5 mS/cm isochlor for some wells. The slope of this relationship was approximately one, which is approximately 1/40th of the value arising from the Ghyben‐Herzberg relation. The framework for characterizing salinity profiles presented in this article offers a new, objective approach for investigating the interface, providing future studies with a technique for examining relationships between interface behavior and key controlling forces.

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“…Thus, piezometric level and temperature monitoring are necessary in sustainable management to prevent negative impacts. Piezometric monitoring allows one to take actions to avoid salt intrusion into the aquifer [4,5], caused by a hydrostatic imbalance as a result of different densities between saltwater from the Pacific Ocean and conditioned diminution by pumping continental freshwater; to prevent water deprivation in certain communities and well weakening due to decrease in piezometric level under pumps or well drilling depth; or identify water level increase in topographic depression that generates flood zones [6]. Temperature monitoring enables one to determine electric conductivity in groundwater, which is correlated with water quality by dissolved salt content and piezometric level [7].…”

Section: Introductionmentioning

confidence: 99%

Development of Low-Cost IoT System for Monitoring Piezometric Level and Temperature of Groundwater

Espinoza Ortiz,

Apún Molina,

Belmonte Jiménez

et al. 2023

Sensors

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Rural communities in Mexico and other countries with limited economic resources require a low-cost measurement system for the piezometric level and temperature of groundwater for their sustainable management, since anthropogenic action (pumping extractions), natural recharge and climate change phenomena affect the behavior of piezometric levels in the aquifer and its sustainability is at risk. Decrease in the piezometric level under a balanced level promotes salt intrusion from ocean water to the aquifer, salinizing and deteriorating the water quality for agriculture and other activities; and a decrease in water level under the pumps or well drilling depth could deprive communities of water. Water temperature monitoring is essential to determine electric conductivity and dissolved salt content in groundwater. Using IoT technology, a device was developed that monitors both variables inside the well, and the ambient temperature and atmospheric pressure outside the well. The measurements are made in real time, with sampling every second and sending data to a dedicated server every 15 min so that the visualization can be accessed through a device with Internet access. The time series of the variables measured inside and outside the well were obtained over a period of three months in the rural community of Agua Blanca, Guasave, Sinaloa, Mexico. Through these records, a progressive temporary drawdown of the piezometric level is observed, as well as the frequency of pumping. This low-cost IoT system shows potential use in hydrological processes of interest such as the separation of regional and local flow, drawdown rates and recognition of geohydrological parameters.

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Characterization of seawater intrusion dynamics under the influence of hydro-meteorological conditions, tidal oscillations and melioration system operative regimes to groundwater in Neretva valley coastal aquifer system

Cited by 5 publications

References 65 publications

Study on Impact of Climate Change and Sea Water Intrusion on Water Quality Parameters of Coastal Area – GIS Based Research

Study on Impact of Climate Change and Sea Water Intrusion on Water Quality Parameters of Coastal Area – GIS Based Research

Salinity Profiles in Coastal Aquifers: A Characterization Framework for Field Measurements

Development of Low-Cost IoT System for Monitoring Piezometric Level and Temperature of Groundwater

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