Assessment of the Digital Terrain Models for Flood Planning and Disaster Management in Minna, Niger State

Abstract

The occurrence of floods and their effects on human existence as well as the general environment has unfortunately been on the increase owing to human-induced climate change and poor infrastructural location. Hence, the aim of this project was to assessed and modeled the digital terrain models of Minna and its environs using geographical information system tools. The data used are from open source and ground observation using handheld GPS. A geospatial technique was used to buffering and indicating the risk zone areas. Additionally, the Digital Elevation Model (DEM), Land use land cover map, and the geomorphological map were developed representing the physical characteristics of the study areas. The research findings show that the lack of a proper drainage system is a contributing factor to flooding in Minna. Increased rural-urban migration and building on water waterways are additional factors. The study recommended that proper drainage and government building regulations should be followed to reduce the amount of drainage blockage.