Numerical modeling of groundwater flow system in the Modjo River catchment, Central Ethiopia

Gebere, Ashebir; Kawo, Nafyad Serre; Karuppannan, Shankar; Hordofa, Aster Tesfaye; Paron, Paolo

doi:10.1007/s40808-020-01040-0

Cited by 20 publications

(8 citation statements)

References 39 publications

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“…The area was observed, and so many areas were affected due to the weathered rocks, groundwater issues, and climate change impact on the aquifer zones and rocks formation. The groundwater head was approximately the same in the wells that penetrated only to the weathered layer and in wells that penetrated the hard rock layer (Pande et al 2019;Gebere et al 2021). Therefore, the top and bottom of weathered and broken rocks may be treated as a single unconfined aquifer.…”

Section: Resultsmentioning

confidence: 99%

Groundwater flow modeling in the basaltic hard rock area of Maharashtra, India

et al. 2021

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The ecological sustainable development and planning of groundwater resources is an excessive challenge for many countries currently facing water insufficiency. The main focus of this work was to determine the direction of groundwater flow, head value, and water level using the steady-state finite difference model (MODFLOW software) in basaltic formations in Maharashtra, India. The MODFLOW model was integrated with ground data using Geographic Information System (GIS) for sustainable groundwater resource management in the hard rock terrain. The MODFLOW-2005 model simulated the interaction between heads and time in 2014–18 by steady-state conditions. In this present study, four observation wells were selected. During the field survey, four observation wells have been monitored regularly as per the Central Groundwater Board guidelines. MODFLOW software has been conceptualized as a double-layered rigid and fractured aquifer area feast over 18,312 m × 11,265 m area. This research demonstrates that the integration of GIS, conventional fieldwork, and mathematical model can support to understand groundwater demand and supply in a better way.

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Section: Resultsmentioning

confidence: 99%

Groundwater flow modeling in the basaltic hard rock area of Maharashtra, India

et al. 2021

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“…Furthermore, understanding the rates and locations of recharge is necessary for evaluating the sustainable yields of the groundwater systems [2,[90][91][92]. Recharge estimation could be achieved by assessing development impacts, predicting climate change, and increasing abstraction rates [9,[93][94][95]. However, the recharging mechanism is an essential indicator of hydrologic conditions affecting aquifer production [15,27].…”

Section: Groundwater Rechargementioning

confidence: 99%

“…With the rapidly increasing population growth and escalating water demand, groundwater abstraction appeared to be beyond its recharge rate challenged groundwater development [96]. Though there is little research on groundwater recharge estimation in Ethiopia, some analysis has been done in recent studies [9,10,64,94,97].…”

Section: Groundwater Rechargementioning

confidence: 99%

“…Description of peer-reviewed published research articles indicated in Table 2 emphasized estimating groundwater flow dynamics and recharge of aquifers applying the following applications. The Newton-Raphson formulation for modular finite-difference groundwater flow (MODFLOW) was applied to evaluate groundwater flow dynamics [9,26,33,72,95,100]. The model predictions reveal that aquifers increase withdrawal and decrease recharge.…”

Section: Groundwater Rechargementioning

confidence: 99%

“…Groundwater is the most substantial clean and significant resource in maintaining human and ecosystems adaptation [8]. However, a lack of effective management strategies in increasing demand and erratic recharge affects groundwater [9,10]. Groundwater abstraction from total global withdrawals takes about 33% and provides water for agronomic (42%), domestic (36%), and manufacturing (27%) requirements [6,11,12].…”

Section: Introductionmentioning

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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