Research article · International Journal of Engineering and Management Sciences

The revision of 1:50000 topographic map of onitsha metropolis, anambra state, Nigeria using nigeriasat-1 imagery

J. O. Ejikeme, J. I. Igbokwe, E. C. Igbokwe, I. C. Ezeomedo

• 1 Department of Surveying and Geoinformatics, Nnamdi Azikiwe University Awka, Nigeria