Dike-induced aquifer models derived from high-resolution multi-spectral satellite imagery

Simple item page
dc.contributor.authorRadebe, Samkelo
dc.contributor.authorClark, Martin
dc.date.accessioned2024-10-18T08:08:10Z
dc.date.available2024-10-18T08:08:10Z
dc.date.issued2024
dc.description.abstractThe Main Karoo Basin in South Africa is a typical example of an expanding arid region dependent on groundwater resources. Dolerite dikes in the region, analogous to dolerite dikes worldwide, are known to influence subsurface groundwater flow and spatially relate to high-yielding boreholes. Here, the effect of dolerite dikes on groundwater flow is remotely assessed using the Modified Soil Adjusted Vegetation Index derived from high-resolution multi-spectral satellite imagery. From imagery collected during the wet and dry seasons of 2018 and 2021, two aquifer models relating to 505 dikes were identified; (1) barrier-controlled aquifers are induced by ~ 56% of dikes, (2) fractured aquifers are induced by ~ 35% of dikes. Surficial areas overlying aquifers are also shown to sustain vegetation growth through dry seasons. This research demonstrates the efficacy of vegetation indices to rapidly characterise dike-related aquifer models and their seasonal sustainability, critical for effective groundwater exploration and management.
dc.description.versionPublisher's version
dc.identifier.citationRadebe, S., & Clark, M. (2024). Dike-induced aquifer models derived from high-resolution multi-spectral satellite imagery. Scientific Reports, 14(1), 23747. https://doi.org/10.1038/s41598-024-75323-2
dc.identifier.issn2045-2322 (online)
dc.identifier.urihttps://doi.org/10.1038/s41598-024-75323-2
dc.identifier.urihttp://hdl.handle.net/11660/12790
dc.language.isoen
dc.publisherNature Research
dc.rights.holderAuthor(s)
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleDike-induced aquifer models derived from high-resolution multi-spectral satellite imagery
dc.typeArticle
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Radebe & Clark_Dike-induced aquifer models derived from high-resolution_2024.pdf
Size:
4.32 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Research Articles (Geology)