September 16, 2025 Thesis Open Access

DESALE DAGNAW; Dr. Imran Ahmed

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  <dc:creator>DESALE DAGNAW</dc:creator>
  <dc:creator>Dr. Imran Ahmed</dc:creator>
  <dc:date>2025-09-16</dc:date>
  <dc:description>Flooding remains a persistent challenge, driven by climate change and human-induced alterations that disrupt hydrological systems. The main goal of this study was flood hazard assessment and mapping using GIS integrated with multi criteria decision analysis in Derek Wonze Mehal Amba Town watershed which was a parts of upper awash river basin. To assess flood hazards, key environmental seven factors including slope, elevation, rain fall, drainage density, soil type, proximity to river and land use—were systematically analyzed. Expert judgments and institutional data were incorporated using the Analytic Hierarchy Process (AHP) to define criteria weights, which were then integrated into a Geographic Information System (GIS) framework. This methodology enabled precise spatial analysis, facilitating the development of detailed flood hazard maps categorizing vulnerable areas into the results of very low (11250 ha) of 10.5℅, low (18990 ha) of 17.6℅, moderate (34290 ha) of 31.9℅, high (26550 ha) of 24.7℅ and very high (16560 ha) of 15.4℅ -risk zones. These maps provide actionable insights for policymakers, urban planners, and environmental agencies seeking to enhance regional flood preparedness. Beyond technical findings, this research emphasizes the necessity of collaborative flood risk management, advocating for proactive intervention strategies that align with ecological preservation and infrastructure planning. By harnessing GIS and AHP methodologies, the study offers a comprehensive model for evaluating flood vulnerability, ensuring informed decision-making that strengthens community resilience. The insights gained serve as a foundation for sustainable land and water management practices, equipping stakeholders with essential tools to mitigate future flood threats while safeguarding environmental stability. This study contributes to advancing adaptive strategies, reinforcing the importance of integrating science and policy to address evolving climatic and anthropogenic flood hazards.
 </dc:description>
  <dc:identifier>https://zenodo.org/record/23860</dc:identifier>
  <dc:identifier>10.20372/nadre:23860</dc:identifier>
  <dc:identifier>oai:zenodo.org:23860</dc:identifier>
  <dc:relation>doi:10.20372/nadre:23859</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:subject>Multi-Criteria Decision Analysis; ArcGIS 10.4.1; Analytic Hierarchy Process; Flood hazard assessment; Derek Wonze Mehal Amba Town watershed</dc:subject>
  <dc:title>FLOOD HAZARD ASSESSMENT AND MAPPING USING GIS INTEGRATED WITH MULTI-CRITERIA DECISION ANALYSIS IN DEREK WONZE MEHAL AMBA TOWN</dc:title>
  <dc:type>info:eu-repo/semantics/doctoralThesis</dc:type>
  <dc:type>publication-thesis</dc:type>
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