Groundwater potential mapping in hard rock terrain using remote sensing, geospatial and aeromagnetic data

Ishola, K. S.; Fatoyinbo1, A. A.; Hamid-Mosaku, Isa Adekunle; Okolie, Chukwuma J.; Daramola, Olagoke E.; Lawal, T. O.

doi:10.1016/j.geogeo.2022.100107

Cited by 16 publications

(13 citation statements)

References 61 publications

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“…Since about 1985, RS has provided new and successful technologies for the continuous, harmonized and efficient monitoring of geodiversity [4], geomorphodiversity [71], geohydrology [72], hydrology [73] and atmosphere, ranging from the local to the global scale. NASA's future SBG missions (https://sbg.jpl.nasa.gov/) with the HyspIRI are particularly useful for RS-based monitoring of geodiversity [15].…”

Section: (B) Methods For Monitoring Geodiversitymentioning

confidence: 99%

Monitoring vegetation- and geodiversity with remote sensing and traits

Lausch,

Selsam,

Pause

et al. 2024

Phil. Trans. R. Soc. A.

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Geodiversity has shaped and structured the Earth's surface at all spatio-temporal scales, not only through long-term processes but also through medium- and short-term processes. Geodiversity is, therefore, a key control and regulating variable in the overall development of landscapes and biodiversity. However, climate change and land use intensity are leading to major changes and disturbances in bio- and geodiversity. For sustainable ecosystem management, temporal, economically viable and standardized monitoring is needed to monitor and model the effects and changes in vegetation- and geodiversity. RS approaches have been used for this purpose for decades. However, to understand in detail how RS approaches capture vegetation- and geodiversity, the aim of this paper is to describe how five features of vegetation- and geodiversity are captured using RS technologies, namely: (i) trait diversity, (ii) phylogenetic/genese diversity, (iii) structural diversity, (iv) taxonomic diversity and (v) functional diversity. Trait diversity is essential for establishing the other four. Traits provide a crucial interface between in situ , close-range, aerial and space-based RS monitoring approaches. The trait approach allows complex data of different types and formats to be linked using the latest semantic data integration techniques, which will enable ecosystem integrity monitoring and modelling in the future. This article is part of the Theo Murphy meeting issue ‘Geodiversity for science and society’.

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Section: (B) Methods For Monitoring Geodiversitymentioning

confidence: 99%

Monitoring vegetation- and geodiversity with remote sensing and traits

Lausch,

Selsam,

Pause

et al. 2024

Phil. Trans. R. Soc. A.

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“…The structural details of lithological contacts, faults, and dykes (or pre-tertiary intrusives) could be discovered by using edge detection algorithms to the aeromagnetic data. According to [7] and [12], these structures influence groundwater circulation and accumulation, serve as hydrocarbon traps, and aid in the assessment of geologic hazards. The deeper magnetic sources characterised by low magnetic amplitudes are probably of Precambrian basement rocks while shallow magnetic sources associated with high magnetic amplitudes depict basic intrusives and/or magnetised bodies within the sedimentary cover and shallow subsurface [43].…”

Section: Aeromagnetic Datamentioning

confidence: 99%

“…The most popular method in aeromagnetic interpretation for identifying groundwater presence is the filter technique, which aims to highlight the edges of rocks. Analytical signal and horizontal gradient filters [12]; [13] are less efficient at detecting deep source edges when compared to more modern filter types like balanced horizontal derivatives, balanced window standard deviations, and balanced analytic signal [12].…”

Section: Introductionmentioning

confidence: 99%

“…The most promising site for a sustainable groundwater supply is being investigated by a number of studies employing remote sensing and geophysical techniques in areas with basement complexes [9]; [10]; [7]; [11]. Geospatial approaches were employed in the investigations of [12] to assess groundwater potential zones in the crystalline basements of North-central Nigeria. An integrated investigation using remote sensing for groundwater potentiality mapping was conducted in the alluvial environment of south-east Asia, and the prediction map created was around 81.3% in agreement with the ground truth data [5].…”

Section: Introductionmentioning

confidence: 99%

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Application of Remote Sensing and Geophysical Methods for Delineating Groundwater Potential at North Western Nigeria

Osumeje,

Eshimiakhe,

Oniku

et al. 2023

Preprint

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The hydrogeological environment can be mapped and groundwater zones identified by combining geophysical and remote sensing methods. In the Palladan and Basawa region of Sabon-Gari local government area in Kaduna state, northwest Nigeria, subsurface features that serve as conduits for groundwater flow are identified and removed using an integrated methodology. The analytical hierarchy process (AHP) was used to enhance, weight, prioritize, and rank a number of remote sensing and geographic datasets. A GIS platform was then utilized to integrate thematic data and create a groundwater potentiality zonation (GWPZ) map. Topographic lineaments in the area are brought to light in remote sensing data using the lineament extraction technique. Based on the lineament density map, the distribution of these lineaments reveals the degree of porosity or permeability in each area and, consequently, its groundwater potential. Aeromagnetic data filtering permits the construction of a structural map that illustrates various geophysical lineaments that are known to be fault systems in the research area. These faults are the main routes via which groundwater seeps to the subsurface and granitoid-type magnetic rocks intrude into the basement. The research region is badly fractured/failed and made up of four lithologic units, including the aquifer layer (clayey sands in the cracked basement) with thicknesses varying from 12–55 m, according to the vertical electrical sounding (VES) applications. According to geoelectric cross-sections, the subsurface structures are made of granitic rocks that are surrounded by normal faults that trend both NW and NE. It is believed that groundwater flows into the hard rock aquifers in the studied locations through these notable geological features, such as faults and fractures.

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“…Figure Groundwater Potential Zones Map (GWPZ) of Ilorin South with the location of boreholes(Ishola et al, 2022) …”

mentioning

confidence: 99%

Assessment of borehole failure and drilling rationale using geospatial Technique in Unilorin, North-central, Nigeria

Fatoyinbo1

Ishola

Okolie

et al. 2023

Preprint

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Notwithstanding the pre-drilling geophysical surveys, the failure rates and suboptimal productivity of some boreholes within the University of Ilorin (UNILORIN) is calling for concern. On the background, this present study investigated the hydrogeological capability and potentiality of some borehole sites. To achieve this, an inventory of 47 boreholes with an existing lineament density map and Groundwater Potential Zonation (GWPZ) map of Ilorin South local government area were integrated. These boreholes were categorized based on the lineament density and groundwater potentiality. The results showed that 85% of the sampled boreholes were sited on zones of low groundwater potential (LGWP) while 15% were on zones of moderate groundwater potential (MGWP). Also, 4% of the boreholes coincided with zones of moderate lineament density and 96% of boreholes coincided with zones of low lineament density, and no borehole was found to coincide within areas of high lineament density. Conclusively, 83% of these boreholes (39 units) were drilled due to logistics motives (e.g., cost consideration, proximity to facilities, and/or as cosmetic projects) while only 17% of these boreholes (8 units) were drilled on account of scientific necessity or after the appropriate geoscientific evaluation was done. It is hoped that the findings in this study will benefit stakeholders and practitioners in water resource management.

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Groundwater potential mapping in hard rock terrain using remote sensing, geospatial and aeromagnetic data

Cited by 16 publications

References 61 publications

Monitoring vegetation- and geodiversity with remote sensing and traits

Monitoring vegetation- and geodiversity with remote sensing and traits

Application of Remote Sensing and Geophysical Methods for Delineating Groundwater Potential at North Western Nigeria

Assessment of borehole failure and drilling rationale using geospatial Technique in Unilorin, North-central, Nigeria

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