Geospatial Analysis of Flood Problems in Jimeta Riverine Community of Adamawa State, Nigeria

Innocent E. Bello, Steve O. Ogedegbe


Floods are among the most devastating natural disasters in the world, claiming more lives and causing more property damages than any other natural phenomena. In recent times, the incidence of flooding across Nigeria has left both the government and the governed devastated. It is no longer news that flooding and its attendant consequences are injurious to man while the spatial dimensions are often not mapped. This study, therefore, examined the nature of water level/extent and vulnerability in the riverine community of Jimeta, Adamawa State. Using time series analysis, four epoch satellite images covering the study area was used to evaluate the geospatial coverage of water along the watercourse of Upper Benue bordering the study area. Using ILWIS 3.8, ArcGIS 10.1 and statistical analysis, the spatial extent and vulnerability of settlements was mapped. Highly vulnerable (50m buffer) were differentiated from low risk zones (100m buffers). Study revealed that besides rainfall, excess water from Cameroun dam is largely responsible for the identified high level of inundation.  The impacts of flood on the local people are devastating as lives and properties have been lost while economic activities reduced due to health risks and mass migration to neighbouring villages and towns. Early flood warning system (EFWS), rapid response mechanism and outfit, strict adherence to zoning and building principles, evacuation of waste and maintenance of drainage systems, mass awareness campaign on flooding and other environmental hazards and, continuous rehabilitation and assistance of victims as a government, individual and NGOs are recommended hence synergy among stake holders is advocated.

Keywords: Flood, GIS Buffer, Settlement, Vulnerability, Water Coverage,

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ISSN (Paper)2224-3216 ISSN (Online)2225-0948

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