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In arid and semi-arid regions, water is rare and precious while access to clean water is challenging and fundamental for such region socio-economic growth and stability. The present study defines high groundwater potential zones within the Essaouira coastal basin along Moroccan Atlantic coast. In this sense, among the eight main factors influencing groundwater availability, geology, hydrology, and topography, were assessed. Geographic Information Systems (GIS), remote sensing, and the Analytic Hierarchy Process (AHP) were used to analyze the influence of various factors—such as drainage density, geological structure, land use, slope, and rainfall—on groundwater potential. Based on the obtained hydrological maps, the basin was classified into three zones: very low potential (12.14%), moderate potential (72.20%), and very high potential (15.66%). The AHP model’s accuracy was validated through a Receiver Operating Characteristics (ROC) curve, revealing a strong correlation (81%) between high-potential zones and actual well productivity.

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Identification of Groundwater Potential Zones (GWPZ) Using Geospatial Techniques and AHP Method: A Case Study of the Coastal Basin of Essaouira, Morocco

  • 章节

  • 发表日期：

    2026年

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  • Ismail Hilal,
  • Noura Ait Omar,
  • Mohamed Qurtobi,
  • Mohamed Sadiki,
  • Mourad Aqnouy,
  • Noureddine Amenzou,
  • Radouan Saadi,
  • Morad Chahid,
  • Ahmed Mahmoud Ahmed Oubeid,
  • Jamal Eddine Stitou El Messari

摘要

In arid and semi-arid regions, water is rare and precious while access to clean water is challenging and fundamental for such region socio-economic growth and stability. The present study defines high groundwater potential zones within the Essaouira coastal basin along Moroccan Atlantic coast. In this sense, among the eight main factors influencing groundwater availability, geology, hydrology, and topography, were assessed. Geographic Information Systems (GIS), remote sensing, and the Analytic Hierarchy Process (AHP) were used to analyze the influence of various factors—such as drainage density, geological structure, land use, slope, and rainfall—on groundwater potential. Based on the obtained hydrological maps, the basin was classified into three zones: very low potential (12.14%), moderate potential (72.20%), and very high potential (15.66%). The AHP model’s accuracy was validated through a Receiver Operating Characteristics (ROC) curve, revealing a strong correlation (81%) between high-potential zones and actual well productivity.