Suitable dam site identification using GIS-based MCDA: a case study of Chemoga watershed, Ethiopia View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2022-03-21

AUTHORS

Yonas Gebresilasie Hagos, Tesfa Gebrie Andualem, Mequanent Abathun Mengie, Workineh Tadesse Ayele, Demelash Ademe Malede

ABSTRACT

Ethiopia is Africa's second-most populous country, after Nigeria, and is primarily a farming community with low productivity that is heavily reliant on rain-fed agriculture. Water scarcity, global warming, and rising population all necessitate more effective water conservation methods. As a result, the demand for dams is increasing dramatically in order to provide the community with safe drinking water, electricity, and irrigation to ensure food security. The goal of this study was to use remote sensing and geographic information system (GIS) techniques in conjunction with the dam suitability stream model and multi-criteria decision analysis to identify potential sites for multi-purpose dam construction. The study used six influencing factors to find suitable dam sites, with the model's suitability stream and overall suitability output maps proposed and evaluated as a result. Based on the topography and land use, the results showed that three proposed dam sites in the upper part of the watershed are likely preferable for irrigation, fishery, and clean drinking water supply. The three proposed dam sites in the watershed's lower reaches, however, are better suited to hydropower generation. In addition, remote sensing and GIS are useful in dam/reservoir site selection because they allow decision-makers to create, manipulate, and manage relevant thematic layers. More... »

PAGES

69

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s13201-022-01592-9

DOI

http://dx.doi.org/10.1007/s13201-022-01592-9

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1146453897


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