Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS
Groundwater development potential in northern Ghana (108 671 km2) has been assessed by combining spatial layers for five critical factors?recharge rate, regolith thickness, transmissivity, borehole success rate and static water level?through a multi-criteria analysis approach to rank development pot...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Informa UK Limited
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/40230 |
| _version_ | 1855532714341433344 |
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| author | Forkuor, Gerald Pavelic, Paul Asare, E. Obuobie, Emmanuel |
| author_browse | Asare, E. Forkuor, Gerald Obuobie, Emmanuel Pavelic, Paul |
| author_facet | Forkuor, Gerald Pavelic, Paul Asare, E. Obuobie, Emmanuel |
| author_sort | Forkuor, Gerald |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Groundwater development potential in northern Ghana (108 671 km2) has been assessed by combining spatial layers for five critical factors?recharge rate, regolith thickness, transmissivity, borehole success rate and static water level?through a multi-criteria analysis approach to rank development potential from the viewpoint of groundwater availability and accessibility at a resolution of 1 km2. The results indicate a high potential for development in the study area, as about 70% of the area was found to have high to moderate groundwater availability, while 83% has high to medium groundwater accessibility. Comparing the two main hydrogeological environments, the Precambrian Basement rocks (PCB) area was found to generally have a higher groundwater development potential than the Voltaian Sedimentary rocks (VSB). More detailed investigation revealed that the VSB can produce a small proportion of exceptionally high-yielding boreholes that can support large-scale irrigation. A test of the reliability of results showed that generally, the majority of high- and low-yielding boreholes fall in areas predicted by the model as having high and low groundwater availability, respectively. |
| format | Journal Article |
| id | CGSpace40230 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace402302025-06-17T08:24:00Z Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS Forkuor, Gerald Pavelic, Paul Asare, E. Obuobie, Emmanuel groundwater development water availability water levels agriculture gis remote sensing models sedimentary materials recharge aquifers hydrogeology maps Groundwater development potential in northern Ghana (108 671 km2) has been assessed by combining spatial layers for five critical factors?recharge rate, regolith thickness, transmissivity, borehole success rate and static water level?through a multi-criteria analysis approach to rank development potential from the viewpoint of groundwater availability and accessibility at a resolution of 1 km2. The results indicate a high potential for development in the study area, as about 70% of the area was found to have high to moderate groundwater availability, while 83% has high to medium groundwater accessibility. Comparing the two main hydrogeological environments, the Precambrian Basement rocks (PCB) area was found to generally have a higher groundwater development potential than the Voltaian Sedimentary rocks (VSB). More detailed investigation revealed that the VSB can produce a small proportion of exceptionally high-yielding boreholes that can support large-scale irrigation. A test of the reliability of results showed that generally, the majority of high- and low-yielding boreholes fall in areas predicted by the model as having high and low groundwater availability, respectively. 2013-02 2014-06-13T14:47:13Z 2014-06-13T14:47:13Z Journal Article https://hdl.handle.net/10568/40230 en Open Access Informa UK Limited Forkuor, Gerald; Pavelic, Paul; Asare, E.; Obuobie, E. 2013. Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS. Hydrological Sciences Journal, 58(2):437-451. doi: https://doi.org/10.1080/02626667.2012.754101 |
| spellingShingle | groundwater development water availability water levels agriculture gis remote sensing models sedimentary materials recharge aquifers hydrogeology maps Forkuor, Gerald Pavelic, Paul Asare, E. Obuobie, Emmanuel Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS |
| title | Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS |
| title_full | Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS |
| title_fullStr | Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS |
| title_full_unstemmed | Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS |
| title_short | Modelling potential areas of groundwater development for agriculture in northern Ghana using GIS/RS |
| title_sort | modelling potential areas of groundwater development for agriculture in northern ghana using gis rs |
| topic | groundwater development water availability water levels agriculture gis remote sensing models sedimentary materials recharge aquifers hydrogeology maps |
| url | https://hdl.handle.net/10568/40230 |
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