Improving Flood Hazards Assessment with Geospatial and Geophysical Integration: A Case Study of Lokoja, Nigeria
Abstract
Flooding is a persistent problem in Lokoja, located at the confluence of the Niger and Benue rivers. This study integrated geospatial and geophysical data to map flood susceptibility in the Sub-Niger River Basin. Using remote sensing, GIS, and aeromagnetic data, seven factors—elevation, slope, drainage density, distance from rivers, lineament density, land use/land cover, and precipitation—were analyzed with the Analytical Hierarchy Process. Results show 36.85% of the basin is highly flood-prone, especially around Ganaja and Gadumo. Model validation (AUC = 0.81) confirms strong accuracy. The map supports floodplain zoning, land-use planning, and improved flood risk management in Lokoja.
Fields of Study & Subjects
Flood Risk Assessment and Management
Groundwater and Watershed Analysis
Land Use and Ecosystem Services
Publication details
- Journal / source
- Journal of Science Technology and Innovation Research
- Publisher
- Federal University of Technology Akure
- Volume
- 2
- Issue
- 1
- Publication date
- 24 April 2026