Abdulmumin M, Abdullahi DW, Sunusi A, Idris AZ. Spatio-Temporal Mapping and Analysis of Surface-Water Dynamics in Kopa Dam, Niger State, Nigeria, Using Sentinel-2 Level-2A and GIS Techniques. AJESRE. 2026;23(1):310-331. doi:10.62154/ajesre.2026.023.01024