GIS-based multi-criteria evaluation of groundwater potential of the Beshilo River basin, Ethiopia

Ahmad, Imran; Dar, Mithas Ahmad; Andualem, Tesfa Gebrie; Halefom, Afera

doi:10.1016/j.jafrearsci.2019.103747

Cited by 36 publications

(16 citation statements)

References 9 publications

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“…Remote sensing (RS) and GIS techniques were applied to identify potential groundwater zones of Ethiopian aquifers [40,58,[78][79][80][81][82][83][84][85][86][87], as illustrated in Table 1. The efficacy of RS in hydrogeological research can offer vital spatial and temporal data sets critical for realistic analysis, prediction, and validation of water resource models.…”

Section: Groundwater Potentialmentioning

confidence: 99%

“…The efficacy of RS in hydrogeological research can offer vital spatial and temporal data sets critical for realistic analysis, prediction, and validation of water resource models. In addition, GIS-based overlay analysis combined with pairwise comparison was a promising approach for predicting groundwater recharge zones in different catchments [83,84,87]. In the potential groundwater zones determination studies, many features have been used based on geologic, hydrologic, hydrogeological, meteorological, and terrain capabilities as selection criteria [80,81,83].…”

Section: Groundwater Potentialmentioning

confidence: 99%

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Challenges and Prospects of Advancing Groundwater Research in Ethiopian Aquifers: A Review

et al. 2021

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Groundwater is a strategic resource in all climatic regions of Ethiopia, contributing about 80% of the domestic supply of urban and rural populations. However, little research has been available compared with extensive geographical coverage and increasing population growth rates. Hence, the present study aimed to review published groundwater research of Ethiopian aquifers to realize potential research challenges and suggest future research directions. We focused on groundwater potential, recharge process, and qualities. The total potential groundwater of the country ranges from 2.5 to 47 billion cubic meters. The study depicted that the mean annual recharge estimate varies from 24.9 mm to 457 mm at catchments scales. However, the overall country was about 39.1 mm. The study found a need for a detailed investigation of different factors susceptible to groundwater pollution, as some of the evaluations indicated exceeding acceptable standards. This study observed that the main challenge was the lack of data and convergence research trends. Henceforth, future research in different climate regions should focus on multifaceted technical and stakeholder settings. This study gives the insight to integrate palatable research findings with the national policy and decision-making process to enhance the sustainability of groundwater resources significantly.

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Section: Groundwater Potentialmentioning

confidence: 99%

Section: Groundwater Potentialmentioning

confidence: 99%

Challenges and Prospects of Advancing Groundwater Research in Ethiopian Aquifers: A Review

et al. 2021

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“…The average annual rainfall in the sub-basin ranges from 1242 mm to 1315 mm, as indicated in Table 6 and Figure 3d. The pace of groundwater recharge is determined by the amount and duration of rainfall (Ibrahim-Bathis and Ahmed, 2016;Andualem and Demeke, 2019;Ahmad et al, 2020). Low intensity and long duration rain had high groundwater recharge rate than run-off.…”

Section: Rainfallmentioning

confidence: 99%

“…Besides, Ahmad et al (2019b) also studied the groundwater potential of the Beles Sub-basin, Ethiopia using GIS and found that 19.34% of the area had high groundwater potential. Ahmad et al (2020) also studied the groundwater potential of the Beshilo Sub-basin, Ethiopia using a GIS-based multi-criteria evaluation technique and reported that 34% of the area falls into a high groundwater potential zone. The results of this study reported a comparable result to other studies conducted in different parts of Ethiopia.…”

Section: Identification Of Groundwater Potential Zonementioning

confidence: 99%

Geospatial and multi-criteria decision approach of groundwater potential zone identification in Cuma sub-basin, Southern Ethiopia

Hagos

Andualem

2021

Heliyon

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Groundwater is an essential component of our country's freshwater supplies. It plays a critical role in satisfying the water demands of the nation's many user sectors. The groundwater resource cannot be exploited and sustained optimally unless prospective zones are identified prior to the drilling of wells. The current study intended to analyze groundwater potential possibilities in the Cuma sub-basin, Omo Gibe basin, southern Ethiopia, utilizing geospatial and multi-criteria decision analysis approaches. For this purpose, a range of thematic layers like geology, Rainfall, drainage density, slope, land use and land cover (LULC), Soil type, faults density, saturated hydraulic conductivity, Available water capacity, and soil depth were organized for the study area. The different sub-criteria of each theme layer were rated according to their effect on groundwater recharge, and a weightage was assigned to each thematic layer based on the analytical hierarchy method (AHP). The identification of groundwater-potential regions of the sub-basin was one of the study's main results. The resulting groundwater potential zone map is further classified into five groundwater potential classes: very good (7.01%), good (19.49%), moderate (17.48%), poor (29.51%), and very poor (26.51%). The study's findings have important significance for developing sustainable groundwater strategies in the area.

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“…Application of RS, GIS based MCDA for GWP is young technology in the country and used to minimize problem of convectional groundwater exploration techniques. A few authors have recently used this technology to explore GWP for future sustainable use of the resources (Ahmad et al 2020;Berhanu and Hatiye 2020;Fenta et al 2014;Tolche 2020).…”

Section: Introductionmentioning

confidence: 99%

Appraising groundwater potential zones using geospatial and multi-criteria decision analysis (MCDA) techniques in Andasa-Tul watershed, Upper Blue Nile basin, Ethiopia

et al. 2021

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Ever increase in population growth and drastic climatic changes augment the demand and exploration of groundwater from time to time. An integrated approach of remote sensing (RS), geographic information system (GIS) and multicriteria decision analysis (MCDA) of analytical hierarchical process (AHP) were applied to delineate groundwater potential (GWP) zones in Andasa-Tul watershed, Upper Blue Nile Basin, Ethiopia. For this purpose, nine GWP influencing thematic layers comprising lithology, lineament density, geomorphology, slope, soil, drainage density, land use/land cover, rainfall and depth to groundwater level were used. The thematic layers and classes within them were given scale values based on literature and experts' decision and calculated using Satty's AHP. The thematic layers have been integrated via their weights/rates using weighted overlay spatial function tool of ArcGIS to provide GWP map. The result shows that GWP map comprises very good (13.4%), good (7%), moderate (23.6 %), poor (35.4%) and very poor (20.5%) zones. Validation of the GWP map with existing water point yields shows 84.21 % agreement indicating good accuracy of the method. The map removal sensitivity analysis result reveals that GWP is more sensitive to lithology (mean variation index, 1.92 %) and less sensitive to geomorphology (mean variation index, 0.59 %). Similarly, from the single layer sensitivity analysis, lithology and slope are found to be more effective parameters, whereas rainfall and depth to groundwater level are less effective variables.

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GIS-based multi-criteria evaluation of groundwater potential of the Beshilo River basin, Ethiopia

Cited by 36 publications

References 9 publications

Challenges and Prospects of Advancing Groundwater Research in Ethiopian Aquifers: A Review

Challenges and Prospects of Advancing Groundwater Research in Ethiopian Aquifers: A Review

Geospatial and multi-criteria decision approach of groundwater potential zone identification in Cuma sub-basin, Southern Ethiopia

Appraising groundwater potential zones using geospatial and multi-criteria decision analysis (MCDA) techniques in Andasa-Tul watershed, Upper Blue Nile basin, Ethiopia

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