Mapping of groundwater potentiality in fractured aquifers using remote sensing and GIS techniques: the case of Tafraoute region, Morocco

Ettazarini, Said; Jakani, Mustapha El

doi:10.1007/s12665-020-8848-1

Cited by 8 publications

(18 citation statements)

References 30 publications

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“…The method used in this study is the Groundwater Potentiality Index (GPI40) by Ettazarini [14] and the Groundwater Potentiality Index (GPI81) by Ettazarini and Jakani [3]. These methods are applied in arid and semi arid areas with impermeable outcrops.…”

Section: Methodsmentioning

confidence: 99%

“…Each parameter is given a notation based on its effect on groundwater presence, as seen in Table 1. Furthermore, the five parameters are assigned a weight that describes their contribution to groundwater availability, formulated in Equations 1 and 2 below [3,14]. (2) Field observations were carried out for primary data collection, consisting of geological and hydrogeological observations.…”

Section: Methodsmentioning

confidence: 99%

“…In addition, secondary data was also collected, including the Topographical Map of Indonesia (RBI) obtained from the Geospatial Information Agency's geoportal, Digital Elevation Model (DEM) obtained from DEMNAS with a spatial resolution of 0.27-arcsecond vertical datum EGM 2008, DEM SRTM, hydrogeology map scale 1: 250,000 [9], geological map scale 1: 250,000 [10], geological map of remote sensing imagery scale 1: 50,000 [16], and annual rainfall data. Processing of the thematic maps for each parameter up to the delineation of the groundwater potential zone map is using the Geographic Information System (GIS) technique integrated with Remote Sensing (RS) and other primary and secondary data [3,6,7,8,11,13,14,17]. Processing of the GPI thematic parameter map is as follows:…”

Section: Methodsmentioning

confidence: 99%

“…Lineament interpretation involves assessing topographic lineaments such as valleys and ridges, which are suspected as the lineament of geological structures. Fractures were analyzed using a buffer technique with a distance of 125 m, resulting in a grid size of 250 x 250 m [3,14]. The GPI notation is attributed to each fracture condition in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…The dry season lasts 7 -9 months, while the rainy season lasts around 3 -4 months, making the study area vulnerable to meteorological drought [1,2]. Water scarcity is a significant obstacle to sustainable development and the most important environmental challenge in semi-arid regions [3,4]. Surface water cannot be used optimally throughout the year to meet the community's water needs, especially at the peak of the dry season.…”

Section: Introductionmentioning

confidence: 99%

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Mapping groundwater potential zone using groundwater potentiality index in Sulamu, Central Fatuleu and West Fatuleu, Kupang, East Nusa Tenggara

Adelin,

Hartono,

Putra

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Water scarcity often occurs during the dry season in Kupang Regency, which is a semi-arid area. The drought limits surface water availability during the dry season, thus making groundwater one of the reliable solutions for fulfilling the need for water from springs and wells. Therefore, mapping the potential of groundwater in the research area becomes the aim of this study, which has never been conducted before. The method used in this research is the Groundwater Potentiality Index, which uses five parameters to identify groundwater potential areas: fracture, lithology, topography, drainage, and rainfall. Field observation and secondary data collection were conducted to provide those parameters. The results are groundwater potential index classified into five groundwater potential zones, resulting in very low (17.07% and 20.39% of total area), low (51.16% and 48.94% of total area), moderate (26.9% and 27.05% of total area), high (4.09% and 3.1% of total area), and very high (0.77% and 0.53% of total area). Zones of very high are found along major fault areas. Areas with high groundwater potential zones indicated favorable conditions for wells positioning at groundwater exploration. These results can be a basis for action related to groundwater resource development in the research area.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%