A framework for analyzing seawater intrusion in coastal areas: An adapted GALDIT model application for Espírito Santo, Brazil

Lima, Victor Hugo Sarrazin; Fernandes, Luís Filipe Sanches; Moura, João Paulo; Oliveira, Mariângela Dutra de; Akabassi, Lucien; Pacheco, Fernando António Leal

doi:10.1016/j.cscee.2024.100887

Case Studies in Chemical and Environmental Engineering

2024

DOI: 10.1016/j.cscee.2024.100887

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A framework for analyzing seawater intrusion in coastal areas: An adapted GALDIT model application for Espírito Santo, Brazil

Victor Hugo Sarrazin Lima,

Luís Filipe Sanches Fernandes,

João Paulo Moura

et al.

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Cited by 3 publications

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A framework model to prioritize groundwater management actions based on the concept of dominant risk: An application to the state of Espírito Santo, Brazil

Pacheco,

Lima,

Moura

et al. 2025

Case Studies in Chemical and Environmental Engineering

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A framework model to prioritize groundwater management actions based on the concept of dominant risk: An application to the state of Espírito Santo, Brazil

Pacheco,

Lima,

Moura

et al. 2025

Case Studies in Chemical and Environmental Engineering

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Impact of seawater intrusion in the coastal aquifers and its effects on agriculture in the delta region of Tamil Nadu

Tharik,

Vijayaraghavalu

2024

Environ. Res. Commun.

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The current study aimed to evaluate the influence of seawater intrusion into groundwater and potential irrigation hazards in the coastal region of Tamil Nadu, India, by analyzing 177 groundwater samples. According to GQISWI, the data shows that 72% of the groundwater samples were contaminated by seawater mixing. Furthermore, seawater mixing into freshwater is evident in 65.5% of the groundwater samples, with a seawater mixing index value greater than 1. According to the USSL classification of electric conductivity for irrigation water quality, 36.7% of samples are classified as very high (>2251 µS/cm), 44% as high (751- 2250 µS/cm), 15.3% as medium (251-750 µS/cm), and 3.4% as low (<250 µS/cm) salinity hazards. Further, the potential salinity reveals that 75% of the samples have high salinity problems while 25% of the samples are moderately suitable for irrigation. According to the statistical analysis, there is a significant correlation between EC and Ca2+ (r=0.93), Mg2+ (r=0.94), Na+ (r=0.92), Cl- (r=0.99), and NO3- (r=0.19), indicating that human activities have a considerable impact on giving these ions to groundwater in the study region. In addition, overexploitation of groundwater through deep borewells for agriculture and domestic purposes, as well as climate change, may result in salinization of coastal aquifers in the study area.

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Prospects of the Reserve Water Supply of Kharkiv From the Deposits of the Alb-Cenoman Aquarium Complex

Strizhelchyk,

Bondarenko,

Pedan

et al. 2024

MEC

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The article discusses the main geological structures of the territory of Kharkiv, in particular the northern side of the Dnipro-Donetsk Depression (DDD) and the central graben. It is determined that these elements have different depths of the Precambrian basement: from 1 to 5 km on the side of the depression and from 8 to 16 km in the graben. The northern side of the DDD is composed of Paleozoic and Mesozoic sedimentary rocks, while the graben contains sedimentary formations of the Paleozoic, Mesozoic and Cenozoic. The peculiarities of the geological and geomorphological structure of the territory of Kharkiv influence the formation of natural groundwater resources. In particular, the interlayering of rocks of different permeability contributes to the formation of interlayer aquifers. The city has a mineral water source “Kharkivska-1” with reserves of 2471 m³/day. The waters of the horizon have a sulfate-hydrocarbonate and hydrocarbonate composition with mineralization from 0.4 to 1.6 g/dm³. A promising horizon for artesian water supply is the aquifer in the deposits of the Alb-Cenomanian complex (K1-K2s), which is regionally distributed within the Dnipro-Donetsk artesian basin. The waters of this complex are warm, with a temperature of 20-24°C, and have a sulfate-hydrocarbonate sodium-calcium composition in the central part of Kharkiv and a sodium hydrocarbonate composition on the periphery. Water salinity varies from 0.5 to 0.9 g/dm³. The maximum water withdrawal from the K-K2s complex in Kharkiv was achieved in the early 80s of the last century, which led to the formation of a depression sinkhole about 100 meters deep. Since 1983, due to a decrease in groundwater extraction, the piezometric level has been recovering. Currently, water withdrawal from the K-K2s complex is about 4.2% of the approved reserves. Based on the analysis of geological and hydrogeological surveys, it is recommended to use the aquifer in the deposits of the Alb-Cenomanian complex (K-K2s) to organize a reserve water supply for Kharkiv. The locations of the wells are proposed taking into account the conditions of groundwater formation and recharge.

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A framework for analyzing seawater intrusion in coastal areas: An adapted GALDIT model application for Espírito Santo, Brazil

Cited by 3 publications

References 50 publications

A framework model to prioritize groundwater management actions based on the concept of dominant risk: An application to the state of Espírito Santo, Brazil

A framework model to prioritize groundwater management actions based on the concept of dominant risk: An application to the state of Espírito Santo, Brazil

Impact of seawater intrusion in the coastal aquifers and its effects on agriculture in the delta region of Tamil Nadu

Prospects of the Reserve Water Supply of Kharkiv From the Deposits of the Alb-Cenoman Aquarium Complex

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