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Climate-Smart Flood Susceptibility Assessment and Infrastructure Planning along the Mirongo River Corridor, Mwanza City, Tanzania

An AHP-weighted flood susceptibility index for Mwanza City combining elevation, slope, TWI, NDVI, soil type, land use/cover, distance to river and rainfall, validated against observed floods, with a 2015/2020/2025 land-use-change analysis showing high-risk zones spreading fastest in rapidly urbanising peri-urban wards.