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| dc.contributor.author | Berihun, Samuel | |
| dc.date.accessioned | 2020-11-25T10:32:37Z | |
| dc.date.available | 2020-11-25T10:32:37Z | |
| dc.date.issued | 2020 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/11684 | |
| dc.description.abstract | The concern of unsustainable groundwater consumption is becoming increasingly an evident problem and the key concern for many developing countries. The main problem is the absence of updated spatial information on the amount and distribution of groundwater resources. Groundwater evaluation in Ethiopia has been usually conducted using field surveys which is not feasible in terms of time and resources. However, estimating the potential of groundwater has still uncertainty due to the nature of groundwater. The aim of this study to delineate, classify, and evaluate the groundwater potential areas in Chemoga watershed using the timely and costeffective geospatial, and AHP techniques. In this study, four major biophysical and environmental parameters that affect groundwater potential are derived using Saaty’s AHP. The parameters are lithology or geology, slope, LULC ,and soil. The data were collected from the satellite image, DEM, existing thematic maps, and woredas water supply office. Landsat-8 image is used to drive the LULC of the area, while the soil, and lithology of the area were identified and classified through field surveys and digitized from existing maps using the ArcGIS 10.3 software. The slope of the area were derived from DEM. After all, these thematic maps were organized ,and weighting value for each factor was computed using ArcGIS 10.3 software. All the factors are computed and integrated using the weighted overlay so that potential groundwater areas were zoned. At last, once the potential groundwater areas were identified, cross validation of the result was carefully carried out using existing data of wells. The point data of wells were overlaid on groundwater potential suitability map and coincide with the expected values. Generally, the applied geospatial and AHP techniques significantly gives reliable results which can help the decisionmakers to formulate, monitor, and evaluation of an effective groundwater resource potential of study area to select a cost-effective and suitable well-sites to ensure a sustainable groundwater source of water supply for Debre Markos town. | en_US |
| dc.language.iso | en | en_US |
| dc.subject | Water Supply and Sanitary Engineering | en_US |
| dc.title | GROUNDWATER POTENTIAL EVALUATION USING INTEGRATED GEOSPATIAL AND ANALYTICAL HIERARCHY PROCESS TECHNIQUES IN CHEMOGA WATERSHED, ETHIOPIA | en_US |
| dc.type | Thesis | en_US |
