Groundwater potential mapping using geospatial techniques: a case study of Dhungeta-Ramis sub-basin, Ethiopia
The objective of this paper is to exploit the potential application of weighted index overlay analysis for assessing groundwater potential mapping at Dhungeta-Ramis sub-basin, Wabi Shebele basin, Ethiopia using remote sensing and geographic information system (GIS) technique. For this purpose, seven...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-01-01
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| Series: | Geology, Ecology, and Landscapes |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/24749508.2020.1728882 |
| _version_ | 1828889491569377280 |
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| author | Abebe Debele Tolche |
| author_facet | Abebe Debele Tolche |
| author_sort | Abebe Debele Tolche |
| collection | DOAJ |
| description | The objective of this paper is to exploit the potential application of weighted index overlay analysis for assessing groundwater potential mapping at Dhungeta-Ramis sub-basin, Wabi Shebele basin, Ethiopia using remote sensing and geographic information system (GIS) technique. For this purpose, seven groundwater occurrences and movement controlling factors, including, lithology, slope, land use land cover (LULC), rainfall, lineaments, soil, and drainage density were mapped. Then, weight was assigned to thematic maps, and the groundwater prospective of the sub-basin is qualitatively classified into five classes, namely, very good, good, moderate, poor, and very poor which account for 2.22%, 26.93%, 56.74%, 13.84%, and 0.26% landscape, respectively. The cross-validation of the resultant model was carefully carried out using spring, hand-dug, and deep well data. The result reveals that 89% of springs were overlaying good and/or very good groundwater potential zones and 58% of deep well shows the same scenario, whereas 42% of deep well overlays moderate zone. As a result, the map generated using this platform could be used as a preliminary reference in selecting suitable sites for groundwater resource exploitation. |
| first_indexed | 2024-12-13T12:42:18Z |
| format | Article |
| id | doaj.art-5746ec33231947c798bee0bbfecc757d |
| institution | Directory Open Access Journal |
| issn | 2474-9508 |
| language | English |
| last_indexed | 2024-12-13T12:42:18Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geology, Ecology, and Landscapes |
| spelling | doaj.art-5746ec33231947c798bee0bbfecc757d2022-12-21T23:45:36ZengTaylor & Francis GroupGeology, Ecology, and Landscapes2474-95082021-01-0151658010.1080/24749508.2020.17288821728882Groundwater potential mapping using geospatial techniques: a case study of Dhungeta-Ramis sub-basin, EthiopiaAbebe Debele Tolche0Haramaya Institute of Technology, Haramaya UniversityThe objective of this paper is to exploit the potential application of weighted index overlay analysis for assessing groundwater potential mapping at Dhungeta-Ramis sub-basin, Wabi Shebele basin, Ethiopia using remote sensing and geographic information system (GIS) technique. For this purpose, seven groundwater occurrences and movement controlling factors, including, lithology, slope, land use land cover (LULC), rainfall, lineaments, soil, and drainage density were mapped. Then, weight was assigned to thematic maps, and the groundwater prospective of the sub-basin is qualitatively classified into five classes, namely, very good, good, moderate, poor, and very poor which account for 2.22%, 26.93%, 56.74%, 13.84%, and 0.26% landscape, respectively. The cross-validation of the resultant model was carefully carried out using spring, hand-dug, and deep well data. The result reveals that 89% of springs were overlaying good and/or very good groundwater potential zones and 58% of deep well shows the same scenario, whereas 42% of deep well overlays moderate zone. As a result, the map generated using this platform could be used as a preliminary reference in selecting suitable sites for groundwater resource exploitation.http://dx.doi.org/10.1080/24749508.2020.1728882groundwater potential zonesgisremote sensingweighted index overlay analysisthematic map |
| spellingShingle | Abebe Debele Tolche Groundwater potential mapping using geospatial techniques: a case study of Dhungeta-Ramis sub-basin, Ethiopia Geology, Ecology, and Landscapes groundwater potential zones gis remote sensing weighted index overlay analysis thematic map |
| title | Groundwater potential mapping using geospatial techniques: a case study of Dhungeta-Ramis sub-basin, Ethiopia |
| title_full | Groundwater potential mapping using geospatial techniques: a case study of Dhungeta-Ramis sub-basin, Ethiopia |
| title_fullStr | Groundwater potential mapping using geospatial techniques: a case study of Dhungeta-Ramis sub-basin, Ethiopia |
| title_full_unstemmed | Groundwater potential mapping using geospatial techniques: a case study of Dhungeta-Ramis sub-basin, Ethiopia |
| title_short | Groundwater potential mapping using geospatial techniques: a case study of Dhungeta-Ramis sub-basin, Ethiopia |
| title_sort | groundwater potential mapping using geospatial techniques a case study of dhungeta ramis sub basin ethiopia |
| topic | groundwater potential zones gis remote sensing weighted index overlay analysis thematic map |
| url | http://dx.doi.org/10.1080/24749508.2020.1728882 |
| work_keys_str_mv | AT abebedebeletolche groundwaterpotentialmappingusinggeospatialtechniquesacasestudyofdhungetaramissubbasinethiopia |