Groundwater potentiality index: a strategically conceived tool for water research in fractured aquifers |
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| Authors: | Said Ettazarini |
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| Institution: | (1) Faculty of Sciences, Department of Earth Sciences, Mohamed V-Agdal University, Rabat, Morocco |
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| Abstract: | Durable development requires full profit and knowledge of natural resources potentialities. Multi-criterion approaches that
encompass geological, morphological, hydrological and Geographical Information System technologies are ones of exiting developments
in environmental sciences. This work is a proposition of a numerical model based on a groundwater potentiality index (GPI)
calculation, using data on rock fracturing, lithology, drainage, topography, rainfall and drilling water yield. It provides
the ability to identify areas indicating favorable conditions for exploratory well positioning in semi-arid zones with non-permeable
outcrops. It is therefore a helpful tool to assist water resources prospecting in deprived regions. The newly conceived approach
has been applied in the southeastern boundary of the Bouregreg and coastal basins of Central Morocco, where Paleozoic fractured
rocks outcrop. The suitability of the GPI method use was verified by comparing the GPI map values with water yield of thirteen
pumping tests in a field checking area, which revealed promising results. |
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| Keywords: | Water research Pumping yield Fractured aquifer Groundwater potentiality index (GPI) GIS Morocco |
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