Isotopic and Geophysical Investigations of Groundwater in Laiyuan Basin, China DOI Creative Commons

Weiqiang Wang,

Zhiwei Meng, Chenglong Wang

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(21), P. 7001 - 7001

Published: Oct. 31, 2024

Due to the complex intersection and control of multiple structural systems, hydrogeological conditions Laiyuan Basin in China are complex. The depth research on relationship between geological structure groundwater migration needs be improved. supply each aquifer is still uncertain. This paper systematically conducts characteristics hydrogen oxygen isotopes, combines magnetotelluric impedance tensor decomposition two-dimensional fine inversion technology carry out exploration strata structures Basin, as well comprehensive replenishment. results indicate following: (i) values all fall near local meteoric water line, indicating that precipitation main recharge source. (ii) excess deuterium decreased gradually from karst mountain basin, pore experienced different flow processes. (iii) three runoff channels described by MT processing techniques. Finally, it concluded limestone moved discharge area, mixed with deep dolomite along fault under F2, eventually rose surface unconsolidated sediment blocked F1 emerge into an ascending spring.

Language: Английский

Examining innovative unsupervised learning techniques for automated characterization of complex groundwater systems DOI Creative Commons
Musaab A. A. Mohammed, Norbert Péter Szabó, Roland Kilik

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 23, P. 102594 - 102594

Published: July 26, 2024

This research proposes an innovative approach utilizing geophysical well logging data analyzed with multiple machine learning (ML) methods including, self-organizing maps (SOMs), k-means cluster analysis (CA), and most frequent value-assisted (MFV-CA), to automatically identify lithological variation within a complex groundwater system. The MFV method is introduced enhance center identification. In MFV, automatedly weighted Euclidean distance applied in which closer points are assigned higher weights that emphasize their proximity clusters. proved be efficient, however, ensure robustness, histogram-based selection employed for initial positioning minimize the risk of choosing inappropriate starting value. proposed methodology tested on Quaternary aquifer system Debrecen area, Eastern Hungary known its high heterogeneity. results were evaluated both 1D 2D reveal vertical horizontal distribution lithofacies. Accordingly, MFV-CA demonstrated exceptional noise rejection capabilities efficient recognition Moreover, continuous estimation hydraulic parameters including conductivity critical flow velocity along hydrostratigraphical units showed close agreement identified units.

Language: Английский

Citations

4
Integrating geospatial, hydrogeological, and geophysical data to identify groundwater recharge potential zones in the Sulaymaniyah basin, NE of Iraq DOI Creative Commons
Sarkhel H. Mohammed, Musaab A. A. Mohammed,

Hawber Ata Karim

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 22, 2025

Abstract Groundwater is a critical resource for sustaining human activities, particularly in urban areas, where its importance exaggerated by growing water demands, expansion, and industrial activities. Ensuring future security necessitates an in-depth understanding of groundwater recharge dynamics, which are often complex influenced rapid urbanization. The alarming decline resources both rural regions underscore the urgency advanced management strategies. However, identifying evaluating potential zones (GWPZs) remains challenge due to dynamic interplay hydrogeological development factors. This study employs integrated approach combining geographic information system (GIS), remote sensing, multi-criteria decision analysis using analytical hierarchy process (MCDA-AHP) delineate GWPZs Sulaymaniyah Basin (SB). methodology further supported data validated through geophysical investigation electrical resistivity tomography (ERT) data. For MCDA-AHP, six thematic layers including rainfall, geology, lineament density, slope, drainage land use/land cover were derived from satellite imagery, geological surveys, well These ranked based on their relative influence GIS-based weighted overlay generate maps. results identified three recharge: low (11.26%), moderate (45.51%), high (43.23%). Validation ERT receiver operating characteristics (ROC) revealed strong agreement, with area under curve (AUC) accuracy 86%. findings demonstrate robustness approach, providing reliable tool minimizing hydrogeophysical exploration costs reducing number unsuccessful boreholes.

Language: Английский

Citations

0
Groundwater exploration, management strategies and sustainability: Geophysical approaches DOI Creative Commons
Joseph Omeiza Alao, Fahad Abubakar

Geosystems and Geoenvironment, Journal Year: 2025, Volume and Issue: unknown, P. 100395 - 100395

Published: April 1, 2025

Language: Английский

Citations

0
Isotopic and Geophysical Investigations of Groundwater in Laiyuan Basin, China DOI Creative Commons

Weiqiang Wang,

Zhiwei Meng, Chenglong Wang

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(21), P. 7001 - 7001

Published: Oct. 31, 2024

Due to the complex intersection and control of multiple structural systems, hydrogeological conditions Laiyuan Basin in China are complex. The depth research on relationship between geological structure groundwater migration needs be improved. supply each aquifer is still uncertain. This paper systematically conducts characteristics hydrogen oxygen isotopes, combines magnetotelluric impedance tensor decomposition two-dimensional fine inversion technology carry out exploration strata structures Basin, as well comprehensive replenishment. results indicate following: (i) values all fall near local meteoric water line, indicating that precipitation main recharge source. (ii) excess deuterium decreased gradually from karst mountain basin, pore experienced different flow processes. (iii) three runoff channels described by MT processing techniques. Finally, it concluded limestone moved discharge area, mixed with deep dolomite along fault under F2, eventually rose surface unconsolidated sediment blocked F1 emerge into an ascending spring.

Language: Английский

Citations

1