May 3, 2023 Thesis Open Access

SHUMA BANTI

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  <identifier identifierType="DOI">10.20372/nadre:15456</identifier>
  <creators>
    <creator>
      <creatorName>SHUMA BANTI</creatorName>
    </creator>
  </creators>
  <titles>
    <title>ASSESSMENT OF GROUNDWATER POTENTIAL USING  ELECTRICAL RESISTIVITY METHOD AND GEOSPATIAL TECHNIQUES: - A CASE OF WALIYE CATCHMENT, AROUND GEDO TOWN, ETHIOPIA</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2023</publicationYear>
  <dates>
    <date dateType="Issued">2023-05-03</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Thesis</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://nadre.ethernet.edu.et/record/15456</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.20372/nadre:15455</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/20-25</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/odc-by">Open Data Commons Attribution License</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Advisor: DR. Fekadu Tamiru (PhD)&lt;/p&gt;

&lt;p&gt;Abstract&lt;/p&gt;

&lt;p&gt;Groundwater under most conditions is safer and more reliable for use than surface water. Ethiopian societies have long prioritized the availability of water resources. The problem of obtaining adequate water supply is generally becoming a more difficult task. With overincreasing political displacement towards the city, lack of self-wells, increasing population numbers, increasing urbanization and an increasing amount of drought in the country, demand for water is increasing rapidly. This study focused on identifying a potential groundwater zone in the Waliye watershed in west Shoa, Ethiopia, where Gedo town is located. The areas get water from different sources, but all the water supplies for this community were 739,600 liters per day. Even if the population consumes 50 lit/day, the average daily demand is 1,273,000L/day, as recommended at the time. The aim of this research is the assessment of groundwater potential using the geospatial method and the electrical resistivity method in the Waliye catchment. In this method, thematic layers were processed by using Arc-GIS and Google Earth to specify slope, drainage density, lineament density, topography, aspect value, lithology, and soil map of the study area to produce a groundwater potential map. Both qualitative and quantitative interpretations of the study&amp;#39;s field results are available. The number of layers and pseudo-section are qualitatively described by observing the form of the field curve in the qualitative interpretation, but the true resistivity, thickness layer, and geoelectrical section display quantitative characteristics. The vertical electrical sounding was taken at twelve points by a 100-m gap distribution interoperated by ipi2win software with a resistivity value between 1.2 m and 105 m and a 105 m and an RMS error of 1.84&amp;ndash;3.39. The vertical electrical sounding data is interpreted by pseudo-section to specify the low resistivity distribution area. Most of the VES data interpretation is in the (H) type format of the earth layer; those types of earth layers have high water-bearing zones. The electrical resistivity tomography was also imaged over five parallel profile lines with a specific 100-meter distance between each profiles study area to get fracture structures. Reverse forwarding interpretation was used to get the most clearly structured structure in this thesis. The inverted interpretation model for both uses effectively minimizes the difference between the observed and estimated values of identified data at the end point to get the high groundwater potential area zone that was mapped on the result. Key Words: Geo-electric section, pseudo section, aspect value and geospatial.&lt;/p&gt;</description>
  </descriptions>
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