Groundwater vulnerability mapping using modified DRASTIC ANP

doi:10.14256/jce.1951.2016

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…The potentiality of groundwater in Kiambu County was evaluated using the modified DRASTIC approach. The approach considers the intrinsic characteristics of an aquifer, in hand with anthropogenic activities on the earth surface [10].…”

Section: Methodsmentioning

confidence: 99%

“…In this study, an endeavour was made towards delineating and classifying underground water potential areas by using an overlay GIS model, the modified DRASTIC model which is a substitute of the initial D-depth to groundwater, R-recharge rate, A-aquifer, S-soil, T-topography, I-vadose zone's impact, and C-aquifer's hydraulic conductivity (DRASTIC) model that was used to map groundwater vulnerability zones [9]. This model is one of the better-known and extensively used in various studies to assess the intrinsic vulnerability of groundwater by considering known properties of the aquifers [10]. For this research, the factors used in the initial model are replaced with the factors that influence groundwater occurrence.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Groundwater Potential and Prediction of the Potential Trend up to 2042 Using GIS-Based Model and Remote Sensing Techniques for Kiambu County

Boitt,

Khayasi,

Wambua

2023

IJG

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Groundwater is one of the important necessary renewable resources of the world. It forms part of the natural water cycle that is present in the underground strata with the principal sources being precipitation and streamflow.Traditionally, information on the potential occurrence of groundwater was obtained using techniques such as drilling, geophysical, geological, hydrogeological and geo-electrical which are time-consuming, costly and lacked full coverage. This study shows that remote sensing and GIS techniques can be utilized to map groundwater potential using a GIS-based model, the Modified DRASTIC Model, which incorporates factors that influence groundwater occurrence. These factors are the surface attributes that infer groundwater potentials and they include geology, soil texture, land use, lithology, landforms, slope steepness, lineaments and drainage systems. A prediction of the groundwater prediction was done by utilizing the MOLUSCE tool, a plugin in Qgis that utilizes ANN, multicriteria evaluation, weights of evidence and LRs algorithms in predicting land changes. The kappa value for prediction was 0.83. The results showed areas in the Southwest region had low to very low potential and the central region had high to very high potential for all the years and there were little changes between the years. The prediction showed that by 2042, the eastern region of Kiambu County will have a decline in groundwater potential.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of Groundwater Potential and Prediction of the Potential Trend up to 2042 Using GIS-Based Model and Remote Sensing Techniques for Kiambu County

Boitt,

Khayasi,

Wambua

2023

IJG

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show abstract

“…The final stage involved combining all thematic layers using the modified DRASTIC model. The model considers the intrinsic characteristics of an aquifer, in hand with anthropogenic activities on the earth surface (Garewal et al, 2019).…”

Section: Data Integrationmentioning

confidence: 99%

Assessment of Ground Water Dynamics and Potential Zones in Urban Areas: A Case Study of Voi Town, Kenya

Boitt

2023

GEP

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Water plays a role in sustaining all the biotic elements. Unfortunately, in the recent times with persistent climate change impacts, parts of the world are facing cases of inadequate water causing stress and increased vulnerability among the people. This is the case with urban areas across the globe as their populations keep increasing with little to no attention paid to urban planning that allows sustainable management of resources amidst rapid development. Urban areas are surrounded by high yielding aquifers that have better water services from groundwater. However, the urban sprawl phenomena have limited attempts in assessing ground water potential in urban areas contributing to urban water scarcity. Therefore, the study aims to look at the problem of urban water scarcity, by analyzing the levels and distribution of groundwater in Voi town using remote sensing and GIS techniques, in order to suggest suitable sites for underground water exploration in regard to the overall urban water supply. From the analysis, the results showed that the area majorly has low to potential zones of groundwater. High potential areas were very few and were mostly on the western side of the area. Very low potential zones were seen on the east and north side of the area.

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Aquifer Vulnerability Assessment of Chaka River Basin, Purulia, India Using GIS-Based DRASTIC Model

Bera

Mukhopadhyay

Biswas

2021

Springer Hydrogeology

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Groundwater vulnerability mapping using modified DRASTIC ANP

Cited by 5 publications

References 30 publications

Assessment of Groundwater Potential and Prediction of the Potential Trend up to 2042 Using GIS-Based Model and Remote Sensing Techniques for Kiambu County

Assessment of Groundwater Potential and Prediction of the Potential Trend up to 2042 Using GIS-Based Model and Remote Sensing Techniques for Kiambu County

Assessment of Ground Water Dynamics and Potential Zones in Urban Areas: A Case Study of Voi Town, Kenya

Aquifer Vulnerability Assessment of Chaka River Basin, Purulia, India Using GIS-Based DRASTIC Model

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