Mapping the spatiotemporal evolution of seawater intrusion in the Moroccan coastal aquifer of Ghiss-Nekor using GIS-based modeling

Water Cycle, Journal Year: 2023, Volume and Issue: 4, P. 104 - 119

Published: Jan. 1, 2023

The impact of seawater intrusion on coastal aquifers is a major concern in managing groundwater resources. unconfined aquifer Ghiss-Nekor, located semi-arid area, particularly vulnerable to (SWI) because excessive pumping and climate change impacts. Therefore, the main goal present work track spatiotemporal evolution SWI Ghiss-Nekor by analyzing data from years 2015 2022 using appropriate geochemical approaches. Accordingly, range techniques were employed, including Piper diagram, Chadha's Gibbs Stiff ions variation maps, Hydrochemical Facies Evolution Diagrams (HFE-D), fraction (fsea). As result, diagram clearly indicates contribution salinization aquifer. Further information provided Piper, Chadha, diagrams, which reveal that 29%–38% wells studied display Na–Cl water type, characteristic feature facies. Additionally, statistical analysis shows significant increase salinity levels between 2022. Furthermore, differential mapping technique (DMT) confirmed salinity, near shoreline. HFE-D showed region impacted increased 14% 20% 2022, maximum fsea value rose 14.84% 25.77% over same time frame. Our findings reinforce assumption worsening In summary, used this study effective tracking quantifying it. results can inform development strategies for aquifers.

Language: Английский

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A comprehensive overview of groundwater salinization and recharge processes in a semi-arid coastal aquifer (Essaouira, Morocco)

Journal of Hydrology Regional Studies, Journal Year: 2023, Volume and Issue: 49, P. 101501 - 101501

Published: Aug. 9, 2023

The downstream part of the Essaouira basin, Morocco, Northwestern Africa. This study combines multivariate statistical analyses, stable isotopes, hydrogeochemical, hydrogeological, geological and remotely sensed data to gain a better understanding hydrological groundwater salinization processes in coastal aquifer. Hydrogeochemical from 223 samples as well isotope collected during 10 sampling campaigns between 1990 2020 were compiled subjected comprehensive analysis. Groundwater recharge obtained approach was checked using water balance method based on remote sensing actual evapotranspiration. Seawater intrusion detected only for period 2009–2020, nearby ocean, whereas hyper-salinity due evaporite dissolution occurred throughout entire (1990–2020) primarily southern Additionally, isotopic mass model shows that aquifer Ksob river area is mainly located northeastern region. Furthermore, average values isotopes rainfall groundwater, preliminary results show months November, December January with higher than 54 mm contribute recharge. confirmed these results, but also revealed lower February, monthly precipitation 46 mm. outcomes this research enabled construction conceptual 3D insights are important guide measures sustainable resources management.

Language: Английский

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Identification and quantification of microplastics in surface water of a southwestern Mediterranean Bay (Al Hoceima, Morocco)

Waste Management Bulletin, Journal Year: 2024, Volume and Issue: 2(1), P. 142 - 151

Published: Jan. 11, 2024

In this study, we evaluated the pollution in Al Hoceima Bay (Southwestern Mediterranean, Morocco) by microplastics. Nine stations were investigated 2019, 2020, and 2021, using Manta net microplastics identified quantified with Raman Spectroscopy. The obtained results showed that fibers, fragments, pellets, films predominant types of dominant size ranged from 0.15 to5 mm while 0.3-0.5 was most prevalent 46.97%. Seven colours counting white blue as items recorded. abundance 1-15 items/m3, an average 4.70±4.50 items/m3. Four polymers dominated Polyethylene (67.4%), Polypropylene (23.2%), Polystyrene (7.1%), Terephthalates (2.3%) identified. spatial distribution variable. not related to distance separating potential sources sampled stations. Our study provided initial data on their along Mediterranean coasts Morocco, recommended for future investigations marine basin.

Language: Английский

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Strategic Reduction Method for Energy Input and CO2 Emissions: Direct Supply of Underground Seawater for Land-Based Aquaculture Systems in South Korea

Energies, Journal Year: 2025, Volume and Issue: 18(1), P. 177 - 177

Published: Jan. 3, 2025

This study addresses the challenges of and opportunities for achieving ambitious greenhouse gas emissions reduction target fishery sector Republic Korea, set at 96% by 2030. We also focus on current status land-based aquaculture underground seawater resource development, quantitatively compare energy inputs fish cultivation, evaluate potential to reduce CO2 emissions. Since 2010, 762 boreholes have been developed, yielding a cumulative daily pumpage 125,780 m3. Jeollanam-do was found highest pumpage, with an annual requirement 131,205,613 Mcal. Despite fact that demands are higher in some months, it provides 22.6% total consumption compared surface water. The use heating or cooling resulted 24.1% required input energy. However, requirements increase due relatively high water temperature regions seasons. highlights utilization via indirect applications using geothermal heat pumps. innovative research broadens methods mitigation, particularly agriculture, livestock, fisheries industries.

Language: Английский

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Assessment and Prediction of the Water Quality Index for the Groundwater of the Ghiss-Nekkor (Al Hoceima, Northeastern Morocco)

Sustainability, Journal Year: 2022, Volume and Issue: 15(1), P. 402 - 402

Published: Dec. 26, 2022

Water quality index (WQI) is the primary method applied to characterize water in world. The current study employed statistical analysis and multilayer perceptron (MLP) approaches for predicting groundwater Ghiss-Nekkor aquifer, northeast of Al Hoceima, Morocco. Fifty sampled were identified analyzed major anions cations throughout May 2019. Several physicochemical parameters all samples this investigation, such as TDS, pH, EC, Na, K, Ca, Mg, HCO3, NO3, Br, SO4, Cl. entropy-weighted (EWQI) was calculated from these parameters. WQI procedure determined suitability consumption. value varied 90.98 337.28. WQI, Cl− spatial distribution showed that EC are associated with poor quality. A single sample (W16) represented unsuitable drinking purposes offered a 337.28, indicating due seawater intrusion, overexploitation, harsh weather conditions. majority values obtained exceeded recommended limit World Health Organization (WHO)’s guidelines findings show using straightforward indexes sufficient suitable precision. MLP model shows good predictive performances terms coefficient determination R2, mean absolute error (MAE), root-mean-square (RMSE) 0.9885, 5.8031, 4.7211, respectively. ANN approach develop can accurately predict utilizing mineralization, TH, NO2 inputs. MAE model’s performance be 4.72. Bland–Altman test used validate suitable. Following test, it appropriate an just 0.1%.

Language: Английский

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Groundwater Hydrochemical Characteristics and Water Quality in Egypt’s Central Eastern Desert

Water, Journal Year: 2023, Volume and Issue: 15(5), P. 971 - 971

Published: March 3, 2023

The rapid expansion of economic activities in Egypt’s Central Eastern Desert has resulted poorly coordinated groundwater development, having a negative impact on the resource. This study was conducted to assess hydrochemical characteristics different aquifers Desert, with an emphasis seawater intrusion and quality for purposes. A total 21 samples were collected representing three main (Eocene Carbonate, Nubian Sandstone, Fractured Basement) analyzed major ions trace elements. majority had electrical conductivity values that exceeded salinity limit natural water. Groundwater saline load is primarily influenced by sodium, calcium, chloride, sulfate concentrations. mainly consists Na-Cl, Ca-Cl, Na-SO4 water-types. Saltwater water-rock interactions via cation exchange minerals weathering are primary controlling factors hydrochemistry. high this renders it unsuitable irrigation or consumption. Additionally, unfit domestic use based hardness values. Furthermore, Al, Cd, Fe, Mn, Ni concentrations investigated exceed allowable limits human Proper mitigation measures adaptation strategies required sustainability Desert.

Language: Английский

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The Assessment of the Groundwater Quality in the Coastal Aquifers of the Essaouira Basin, Southwestern Morocco, Using Hydrogeochemistry and Isotopic Signatures

Water, Journal Year: 2023, Volume and Issue: 15(9), P. 1769 - 1769

Published: May 5, 2023

Because of anthropogenic activity and seawater intrusion, coastal aquifers worldwide frequently face a threat to their water supply due salinization. This paper investigates the assessment groundwater quality in Hauturivien aquifer Essaouira basin. In this study, 56 samples collected from Hauturivian across four campaigns 2017, 2018, 2019, 2020 were subjected multivariate analyses involving principal component analysis (PCA) cluster (CA) using SPSS software. Among three main types, mixed Ca-Mg-Cl classification was predominant investigated aquifer. addition natural processes (such as water–rock interaction, ion exchange, dissolution/precipitation dynamics, evaporation) that govern quality, current land use practices have increased salinization poorly drained semi-arid area. Based on assessments Water Quality Index (WQI) Irrigation (IWQI), is suitable for human consumption, but its irrigation limited crops can tolerate high salt levels. The stable isotopes (δ2H δ18O) demonstrated local precipitation primary recharge source. Nonetheless, evaporation process, influenced by various geological conditions, affects recharge, regardless topographical differences study

Language: Английский

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Towards a Decision-Making Approach of Sustainable Water Resources Management Based on Hydrological Modeling: A Case Study in Central Morocco

Sustainability, Journal Year: 2022, Volume and Issue: 14(17), P. 10848 - 10848

Published: Aug. 31, 2022

Water is one of the fundamental resources economic prosperity, food security, human habitats, and driver many global phenomena, such as droughts, floods, contaminated water, disease, poverty, hunger. Therefore, its deterioration inadequate use lead to heavy impacts on environmental humans. Thus, we argue that address these challenges, can rely hydrological management strategies. The objective this study simulate quantify water balance components based a hydrologic model with available data at R’Dom watershed in Morocco. For purpose, used Soil Assessment Tool + (SWAT+) model. streamflow simulations were run monthly time step (from 2002 2016), during calibration period 2002–2009, coefficient determination (R2) Nash–Sutcliffe efficiency (NSE) values 0.84 0.70, respectively, 0.81 0.65, validation 2010–2016. results modeling revealed average annual precipitation was about 484 mm, out this, 5.75 mm came from development irrigation agricultural lands. evapotranspiration accounted for 72.28% input watershed, while surface runoff (surq_gen) 12.04%, 11.90% lost by lateral flow (latq), 4.14% groundwater recharge (perco). Our approach designed capture real image case study; zooming into other studies similar environments uncover situation highly recommended. Moreover, outcomes will be helpful policy decision-makers, it good path researchers further directions SWAT achieve adequate resources.

Language: Английский

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Hydrochemistry and its relationship with groundwater flow and geology in Al Madinah Al Munawarah Province, Kingdom of Saudi Arabia

Journal of Hydrology Regional Studies, Journal Year: 2023, Volume and Issue: 47, P. 101437 - 101437

Published: June 1, 2023

A detailed study was performed in Al-Madinah Al-Munawarah Province, Kingdom of Saudi Arabia Groundwater quality and availability are a serious concern this aquifer owing to aridity, high-water demand the absence alternative water resources. systematic investigate hydrochemistry its relationship with groundwater flow geology using geochemical tools, multivariate statistical analysis Pearson correlation matrix (PCM). Hardness high salinity restrict (> 50%) suitability for drinking. Restricted caused by geological formations enhanced central part site. High F- NO3- recorded shallow GWL wells evident anthropogenic input. Hierarchical cluster (HCA) classified into three clusters (C1, C2, C3). chemistry is predominantly affected evaporation C3) followed mineral weathering (C1). Principal component also suggests that evaporation/evaporite dissolution, input silicate carbonate chemistry. Geochemical tools PCM illustrate C1 influenced cation exchange whereas, C2 C3 wells, chiefly regulated ion weathering. This recommended policymakers local municipalities should implement regular monitoring plan protect aquifer.

Language: Английский

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Evaluation of TRMM 3B43 V7 precipitation data in varied Moroccan climatic and topographic zones

Mediterranean Geoscience Reviews, Journal Year: 2024, Volume and Issue: 6(2), P. 159 - 175

Published: April 6, 2024

Language: Английский

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