Abdulmumin, Musa, Abubakar Sunusi, Dauda Waziri Abdullahi, and Abubakar Zalkiflu Idris. 2026. “Satellite-Derived Relative Bathymetry Mapping of Kopa Dam Using Sentinel-2 Level-2A Imagery and GIS Techniques”. African Journal of Environmental Sciences and Renewable Energy 23 (1): 289-309. https://doi.org/10.62154/ajesre.2026.023.01023.