Evaluation of specific retention, specific yield, and storage-dependent drainability efficiency in a coastal milieu via geo-electrical technology DOI Creative Commons
Ndifreke I. Udosen, Nyakno J. George

Water Practice & Technology, Год журнала: 2024, Номер 19(9), С. 3654 - 3675

Опубликована: Авг. 13, 2024

ABSTRACT The aim of this research was the application geo-electrical technology in determination specific retention, yield, and storage-dependent drainability efficiency within a major coastal milieu Nigeria. This improves on past work where expensive time-intensive pumping tests were employed to determine retention yield. In addition these key aquifer geo-kinetic properties, other important characteristics such as potentiality, protectivity, vulnerability contamination system determined. Geo-electrical Wenner Schlumberger arrays undertake Vertical Electrical Soundings (VES) Resistivity Tomography (ERT) surveys results obtained constrained by ground truth from lithological logs. Results electrical resistivity indicated that strata comprised motley topsoil, coarse sand, fine sandy clay. Measures yield generated secondary indices. Specific intersected with at 73% (SDE), indicating percentage must be exceeded for optimal groundwater extraction rock matrix's pore spaces during pumping. Aquifer transmissivity measures high potentiality; longitudinal conductance poor protectivity implying increased contamination.

Язык: Английский

Enhanced Contamination Risk Assessment for Aquifer Management Using the Geo-resistivity and DRASTIC Model in Alluvial Settings DOI Creative Commons
Nyakno J. George, Okechukwu Ebuka Agbasi,

A.J Umoh

и другие.

Cleaner Water, Год журнала: 2024, Номер unknown, С. 100060 - 100060

Опубликована: Дек. 1, 2024

Язык: Английский

Процитировано

6

Aquifer vulnerability valorization via DRASTIC index-based assessment within litho-facies of a coastal environment DOI Creative Commons
Ndifreke I. Udosen, Nyakno J. George, Aniekan M. Ekanem

и другие.

Results in Earth Sciences, Год журнала: 2024, Номер 2, С. 100033 - 100033

Опубликована: Июль 9, 2024

Determining the degree of an aquifer's susceptibility to pollutants is important tool for policy planning in subterranean water administration and conservation. In this work, vulnerability was appraised with use DRASTIC methodology, which employs seven parameters: depth groundwater (D); net recharge (R); aquifer media (A); soil (S); topography (T); influence vadose zone (I); hydraulic conductivity (C). Different ratings were given each parameter based on hydro-geological geo-electrical information obtained from study area. Geo-electrostratigraphic data acquired vertical electrical soundings resistivity tomography surveys. The results demonstrated existence geoelectrical layers variable resistivities ranging high low, curve types. Longitudinal conductance measures indicated moderate protective capacity. Analysis indices showed that contamination. Vulnerability maps generated indicate locations vulnerability, goal being prevent indiscriminate haphazard wildcat abstraction such locations. quality category index (QCI) model underground susceptivity dependent all 7 parameters employed model, most critical determinants (D), (R), (A), impact (I). work recommends anthropogenic activities could contaminate resource be halted as by models vulnerable.

Язык: Английский

Процитировано

3

Gradient resistivity trends modeling of the Quaternary aquifer and its overlaying and underlying layers in the semi-arid Khanasser valley region, northern Syria DOI

Jamal Asfahani

Acta Geodaetica et Geophysica, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Язык: Английский

Процитировано

0

Hydrogeophysical characterization of unconsolidated aquifers: an application of Stratigraphic Modified Lorenz Plots and Flow Zone Indicators for groundwater management DOI
Ndifreke I. Udosen

International Journal of Energy and Water Resources, Год журнала: 2025, Номер unknown

Опубликована: Апрель 28, 2025

Язык: Английский

Процитировано

0

Zonation of coastal geo-electrostratigraphic units via Stratigraphic Modified Lorenz Plots and rock typing DOI Creative Commons
Ndifreke I. Udosen

Results in Earth Sciences, Год журнала: 2025, Номер unknown, С. 100099 - 100099

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0

Georesistivity assessment of lithological and hydrodynamic factors in groundwater sanitation of Akwa Ibom river channel aquifer system DOI Creative Commons
Nyakno J. George,

KufreRichard Ekanem,

Aniekan M. Ekanem

и другие.

Geosystems and Geoenvironment, Год журнала: 2025, Номер unknown, С. 100411 - 100411

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0

Litho-stratigraphic characterization of hydrogeological and hydraulic flow units via electrical resistivity, Stratigraphic Modified Lorenz Plots, and flow zone indicator models DOI Creative Commons
Ndifreke I. Udosen, Aniekan M. Ekanem, Nyakno J. George

и другие.

Solid Earth Sciences, Год журнала: 2024, Номер 9(3), С. 100191 - 100191

Опубликована: Июль 30, 2024

Litho-stratigraphic characterization within hydrogeological units of a major aquifer system in Southern Nigeria was carried out using Electrical Resistivity (ER), Stratigraphic Modified Lorenz Plots (SMLP), and Flow Zone Indicator (FZI) algorithms. The aim integrating these technologies to generate hydraulic flow (HFU) that would describe the speed efficiency aquifer's stratigraphic units. technology delineated four geoelectric layers study area: motley topsoil, coarse sand, fine sandy clay, with aquiferous formation being third layer. Via measures obtained from geo-electrical data, geo-hydraulic parameters were estimated. conductivity ranged 3.1 x 10−5 9.3 m/s, effective porosity 0.33 0.54, permeability 4362.9 13143.4 mD, tortuosity 0.85 0.97, Aquifer Quality Index (AQI) values 3.57 4.88 4.11 7.00. presence three region. first zone superconductor good ranking; second zones conductors having fair rankings. Results employed Discrete Rock Typing (DRT) results which indicated two distinct rock matrix types. Dykstra-Parson co-efficient, evaluation heterogeneity, gave value unity, indicating perfect heterogeneity aquifer.

Язык: Английский

Процитировано

2

Evaluation of specific retention, specific yield, and storage-dependent drainability efficiency in a coastal milieu via geo-electrical technology DOI Creative Commons
Ndifreke I. Udosen, Nyakno J. George

Water Practice & Technology, Год журнала: 2024, Номер 19(9), С. 3654 - 3675

Опубликована: Авг. 13, 2024

ABSTRACT The aim of this research was the application geo-electrical technology in determination specific retention, yield, and storage-dependent drainability efficiency within a major coastal milieu Nigeria. This improves on past work where expensive time-intensive pumping tests were employed to determine retention yield. In addition these key aquifer geo-kinetic properties, other important characteristics such as potentiality, protectivity, vulnerability contamination system determined. Geo-electrical Wenner Schlumberger arrays undertake Vertical Electrical Soundings (VES) Resistivity Tomography (ERT) surveys results obtained constrained by ground truth from lithological logs. Results electrical resistivity indicated that strata comprised motley topsoil, coarse sand, fine sandy clay. Measures yield generated secondary indices. Specific intersected with at 73% (SDE), indicating percentage must be exceeded for optimal groundwater extraction rock matrix's pore spaces during pumping. Aquifer transmissivity measures high potentiality; longitudinal conductance poor protectivity implying increased contamination.

Язык: Английский

Процитировано

1