Replication Data for Geospatial Assessment of Flood Vulnerability and Its Impact on Food Security in Downstream Communities of Shiroro and Zungeru Dams, Niger State, Nigeria

Replication Data Description This replication dataset supports the study Geospatial Assessment of Flood Vulnerability and Its Impact on Food Security in Downstream Communities of Shiroro and Zungeru Dams, Niger State, Nigeria. It contains all spatial and non-spatial data required to reproduce the flood vulnerability modeling, exposure analysis, and food security assessment presented in the study. The data include processed Sentinel-1 SAR flood extent layers, digital elevation and terrain-derived indicators, hydrological features, land use and land cover data, community locations, agricultural land extents, and household survey variables related to food security and livelihood outcomes. Derived layers generated through GIS-based fuzzy multi-criteria analysis, spatial overlays, and zonal statistics are provided to document each stage of the analytical workflow. All datasets are supplied in standard GIS and tabular formats with complete coordinate reference system information and standardized attribute fields. The replication data enable independent verification of results, replication of vulnerability classification, and reuse of the methodological framework for flood risk and food security assessments in other dam-influenced river basins.