Delineation of groundwater zones with contrasting quality in the fluorotic zone, around Mount Meru, northern Tanzania

Makoba, Edikafubeni; Muzuka, Alfred N. N.

doi:10.1080/02626667.2020.1858233

Cited by 2 publications

(5 citation statements)

References 54 publications

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“…The 2-D resistivity data were analyzed using RES2-DINV software to produce sections' interpretation of geological layers in relation to groundwater occurrence. The final output was the identification of the number of aquifers, depth to the aquifer, thickness of the aquifer and resistivity of the aquifer [39].…”

Section: Geophysical Data Analysismentioning

confidence: 99%

Integrated Geospatial and Geophysical Approaches for Mapping Groundwater Potential in the Semi-Arid Bukombe District, Tanzania

Kubingwa

Makoba

Mussa

2023

Earth

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The rapid growth of civil societies coupled with population influx due to the artisanal mining industry in the Bukombe district (BD) has triggered a high demand for water resources. The daily consumption of water resources in the district surpasses the supply from available surface water sources. Thus, the situation has raised the demand for groundwater resources as an alternative. Despite the importance of groundwater resources, no current studies have spatially assessed groundwater potential to locate optimal points for borehole development. This study intended to investigate and map the groundwater potential areas (GWPAs) in the semi-arid BD using remote sensing (RS), the geographic information system (GIS), and the analytic hierarchy process (AHP) to help local communities access clean and safe water. Rainfall, geology, slope, drainage density, land use/land cover and lineament density were prepared to delineate the map of GWPAs. The map was categorized into poor (0.21%), moderate good (51.39%), good (45.70%) and very good (2.70%). Finally, the GWPA map was validated using Vertical Electrical Sounding (VES), 2-D sections and a drilled borehole. The validation results confirmed that the applied approach provides significant results that can help in planning the sustainable utilization of groundwater resources.

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Section: Geophysical Data Analysismentioning

confidence: 99%

Integrated Geospatial and Geophysical Approaches for Mapping Groundwater Potential in the Semi-Arid Bukombe District, Tanzania

Kubingwa

Makoba

Mussa

2023

Earth

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“…In this study, specific capacity was estimated in 15 pumped boreholes. Sc = Q/∆s (5) where Sc = specific capacity (m 2 /day) Q = constant pumping rate (m 3 /day) ∆s = unit drawdown…”

Section: Specific Capacitymentioning

confidence: 99%

“…In sub-Saharan Africa, most people depend on water from rivers, streams, lakes, and ponds for socio-economic purposes [4]. These sources are largely affected by pollution, a likely result of anthropogenic activities [5]. Hence, it appears that the solution to the problems of these sources lies basically in the efficient utilization of groundwater and the efficient management of aquifers, hand-dug wells, and boreholes [6].…”

Section: Introductionmentioning

confidence: 99%

“…Over the past 24 years, there has been a tremendous increase in the number of newly developed boreholes in regions with high population growth, such as the cities of Dar es Salaam and Arusha [3]. Despite the fact that groundwater Earth 2023, 4 777 in the country is inadequately explored [5], the country is likely to have potential for groundwater. For instance, there are some boreholes with yields of about 460 m 3 h −1 in the semi-arid region of Dodoma [8], and in the Pangani basin, the yield of boreholes ranges between 10 and 800 m 3 h −1 [9].…”

Section: Introductionmentioning

confidence: 99%

“…Studies on aquifer properties can be used to provide more reliable information on the aquifer characteristics of the formation that controls groundwater occurrence, storage, and movement [5,11,[13][14][15][16]. The pumping test is one of the most effective methods for determining the hydraulic properties of the water-bearing layers simply because it allows for the quantification of groundwater and hydraulic conductivity, both of which depend on porosity, specifically the secondary porosity in the hard rock aquifer formation [15].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Groundwater Potential Using Aquifer Characteristics in Urambo District, Tabora Region, Tanzania

Yohana,

Makoba,

Mussa

et al. 2023

Earth

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In developing countries like Tanzania, groundwater studies are essential for water resource planning, development, and management. Limited hydrogeological information on groundwater occurrence, availability, and distribution in Urambo District is termed a key factor that hinders groundwater development. This research was aimed at the evaluation of groundwater potential zones in a granitic gneiss aquifer in Urambo District by integrating six indicators (transmissivity, specific capacity, static water level, yield, total dissolved solids, and geology) that were developed and applied in the study area. The indicators were further combined, and a groundwater potential index map (GWPIM) was prepared using relative weights derived from the analytical hierarchy process (AHP). The results show that 67% and 27% of the study area are categorized as moderate and high groundwater potential zones, respectively. Groundwater is controlled by both Quaternary sediments (sands and gravels) and weathered to fractured granitic gneiss. Quaternary sediments host the major shallow aquifers (<35 m) with relatively high transmissivity, specific capacity, and yield (1.5 m2/day, 16.36 m2/day, and 108 m3/day, respectively). Granitic gneiss is not strongly fractured/weathered and forms an aquifer with a relatively low yield of about 10.08 m3/day. The findings were validated using three boreholes, and the results are consistent with the developed GWPIM. Such findings are of great importance in groundwater development as the techniques applied can be extended to other areas in Tanzania as well as other countries that experience similar geological environments.

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Delineation of groundwater zones with contrasting quality in the fluorotic zone, around Mount Meru, northern Tanzania

Cited by 2 publications

References 54 publications

Integrated Geospatial and Geophysical Approaches for Mapping Groundwater Potential in the Semi-Arid Bukombe District, Tanzania

Integrated Geospatial and Geophysical Approaches for Mapping Groundwater Potential in the Semi-Arid Bukombe District, Tanzania

Evaluation of Groundwater Potential Using Aquifer Characteristics in Urambo District, Tabora Region, Tanzania

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