Assessment of flood susceptibility utilizing remote sensing and geographic information systems: A case study of Mpazi sub-catchment in the city of Kigali

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Patience Manizabayo
Hyacinthe Ngwijabagabo
Isaac Nzayisenga
Sabato Nzamwita
Laika Amani
Eugene Uwitonze
Katabarwa Murenzi Gilbert


The Mpazi sub-catchment has been facing recurring floods, which pose significant threats to the community and environment. However, GIS technology has proven to be a valuable tool in assessing flood risks and vulnerability in the region. By analyzing spatial data such as land use, elevation, and rainfall patterns, detailed flood maps can be generated to simulate flood scenarios and develop effective management plans. The study conducted in this region revealed that there is a high susceptibility to flood hazards, particularly during the rainy season. The study identified the most vulnerable areas in the region and categorized them as follows: very high risk (39.74%), high risk (13.02%), moderate risk (30.22%), low risk (5.12%), and very low risk (11.9%). It is important to note that floods not only impact the environment but also infrastructure, such as residential and commercial buildings. The insights provided by this study are invaluable for stakeholders in developing effective flood management strategies to mitigate. Hence, all concerned government departments and citizens should collaborate actively to alleviate the ongoing rise in flooding and its impact. Adherence to land use and zoning regulations is crucial in this regard to address the issue effectively.

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Manizabayo, P. ., Ngwijabagabo , H. ., Nzayisenga , I. . ., Nzamwita , S. ., Amani , L. ., Uwitonze , E. ., & Gilbert, K. M. . (2024). Assessment of flood susceptibility utilizing remote sensing and geographic information systems: A case study of Mpazi sub-catchment in the city of Kigali. Advanced GIS, 4(1), 31–41. Retrieved from


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