Mapping Groundwater Potential Zones in the Widyan Basin, Al Qassim, KSA: Analytical Hierarchy Process-Based Analysis Using Sentinel-2, ASTER-DEM, and Conventional Data

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(5), P. 766 - 766

Published: Feb. 22, 2025

Groundwater availability in semi-arid regions like the Widyan Basin, Kingdom of Saudi Arabia (KSA), is a critical challenge due to climatic, topographic, and hydrological variations. The accurate identification groundwater zones essential for sustainable development. Therefore, this study combines remote-sensing datasets (Sentinel-2 ASTER-DEM) with conventional data using Geographic Information System (GIS) analytical hierarchy process (AHP) techniques delineate potential (GWPZs). basin’s geology includes Pre-Cambrian rock units Arabian Shield southwest Cambrian–Ordovician northeast, Saq Formation serving as main aquifer. Six soil types were identified: Haplic Calcic Yermosols, Calcaric Regosols, Cambic Arenosols, Orthic Solonchaks, Lithosols. topography varies from steep areas northwest nearly flat terrain northeast. Hydrologically, basin divided into 28 sub-basins four stream orders. Using GIS-based AHP weighted overlay methods, GWPZs mapped, achieving model consistency ratio 0.0956. categorized excellent (15.21%), good (40.85%), fair (43.94%), poor (0%). GWPZ was validated by analyzing 48 water wells distributed area. These range fresh primary saline water, depths varying between 13.98 130 m. Nine wells—with an average total dissolved solids (TDS) value 597.2 mg/L—fall within zone, twenty-one are fifteen classified remaining fall TDS values reaching up 2177 mg/L. results indicate that central zone area suitable drilling new wells.

Language: Английский

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Integrated GIS-Based Approach for Groundwater Potential Mapping in Arid Regions: A Case Study of Kenadsa-Bechar Using AHP and Frequency Ratio Methods

Groundwater for Sustainable Development, Journal Year: 2025, Volume and Issue: unknown, P. 101461 - 101461

Published: May 1, 2025

Language: Английский

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Groundwater Potential Zone Delineation through Analytical Hierarchy Process: Diyala River Basin, Iraq

Water, Journal Year: 2024, Volume and Issue: 16(20), P. 2891 - 2891

Published: Oct. 11, 2024

Groundwater recharge zone identification is vital for managing water resources, particularly in semi-arid and dry climates. Accurate quantifiable assessment necessary the sustainable management of groundwater it possible to carry this method out using modern techniques technical standards. To identify likely locations Diyala River Catchment, Iraq, which serves as an example study basin, current research examines a new methodology that employs geographic information system, Analytical Hierarchy Process connected with remote sensing data. The technique ArcGIS was employed generate spatially distributed thematic layers rainfall, lithology, slope, drainage density, land use/land cover, relief soil. raster data from these were then converted categorized. weights assigned strata depended on their significance relative occurrence. A pairwise judgement matrix used, categorized ranking, assess standardized under consideration. formation zones have been placed overlay-weighted summation approach. Three regions, are classed excellent, good moderate, identified resulting potential map, representing roughly 29, 69 2% basin’s total area, respectively. study’s conclusions indicate that, such climate, adopted strategy would produce favourable results promote organizing opinions use resources.

Language: Английский

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A Geoinformatics-Based Comparative Study of Multi-Criteria Decision Making Approaches of Groundwater Potential Zoning in Ken Basin, India

Journal of the Indian Society of Remote Sensing, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

Language: Английский

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