Non Parametric Modeling of Flood Vulnerability: For Sustainable Growth and Development of Gwagwalada, Federal Capital Territory, Nigeria

Research areas: Year: 2014
Type of Publication: Article Keywords: Buildup, Floodplains, River Usuma, Vulnerability
  • K. T. Oyatayo, A. Andesikuteb J. Uwazuruonye
Journal: Journal of Environmental Sciences and Policy Evaluation Volume: 4
Number: 1 Pages: 15-23
Month: June
This study aimed at assessing the vulnerability of Gwagwalada town to flooding using remote sensing techniques. Topographic maps of Kuje sheets 207NW1c, 207NW1f, Quickbird 2003 and Ikonos 2006 imageries were scanned and digitized onscreen using ILWIS 3.1 Academic GIS software. Thereafter, a digital elevation model (DEM) was created and was used to categorize the study area into three flood vulnerability levels. Themes were created and labeled accordingly to produce a flood vulnerability map that was overlaid on an unclassified Ikonos 2006 imagery. The result on buildup expansion on Gwagwalada town shows that there is increased buildup encroachment on the flood plain without taking cognizance of the suitability of the land for such development. The recommendations from here is that households residing on the banks of river Usuma should as a matter of urgency be relocated to areas not vulnerable to flood within the study area and also F.C.D.A. should ensure there is proper and efficient Land use planning and regulations within the study area.