ABSTRACT
In this study, remote sensing methods were employed to properly manage the risk of flood in Egor local government area and develop strategies to lessen the area's flood impact. The methodology involves the decision making using the multi-criteria decision making to analyze the problem at hand and tackle it head on. It involves the use of the analytical hierarchy process and weight linear method to proffer a consistent ratio for the flood risk area. For generating the land use land cover of the area alongside hydrological data of (DEM), rainfall data, elevation/slope map to determine the effect on the area of interest, the drainage density to determine the impact of various available drainage system the permeability of flood water in the area of interest, soil map with the administrative location boundary map of the study area serving as an area of interest or extent for which all data processing operation is bounded. This follows with, classification and reclassification along with weighted overlay analysis from which the flood risk and vulnerability map will generated. This strategy was favored because it made use of remotely sensed data to analyze flood patterns and pinpoint high-risk regions. The result gotten from this study allows us to understand the various measures that can be taken to dampen the risk of flooding in Egor and its towns. All of which were proffered as a result classification and proper explanation of the various maps that were produced and used for this study. From these maps, we understand the characteristics of the study area. Five different classifications of flood hazards were formed by the seven parameters that were chosen to be employed in the mapping process. Approximately 10%, 20%, 40%, 10%, and 20% of the study area, respectively, are covered by these zones, which represent very high, high, moderate, low, and very low flood danger. Also, the soil composition: Sandy- 52%, Clay-25%, Loam-23%, describes the percolation rate of Egor. The zones with very high/high flood hazard are very susceptible to the disastrous effect of flood water. Because of such areas some form of recommendation were provided for to tackle these effects. Some measures include: widening and constructing standard drainage systems, unclogging of municipal waste, sand, silt and other forms of waste periodically, building levees along vulnerable areas, and developing geospatially-based, systematic strategies for relocating people and may provide town planners with information of vulnerable areas with high-risk impact. These measures should be informed by the use of remote sensing and GIS techniques to provide preparedness and awareness, and to mitigate the potential impact of flood events.
