Coastal flooding is one of the world's most dangerous natural dangers, impacting more people and destroying more property than any other natural disaster. The purpose of this study was to see how coastal flooding affected residents on Vitoria Island in Lagos, Nigeria. The purpose of this paper is to determine the causes of coastal flooding in the Victoria Island area of Lagos State; assess the extent and implications of coastal flooding at various times; create a DEM map for the study area using GIS techniques; assess the effects of coastal flooding on residents' socioeconomic characteristics; and devise strategies for managing coastal flooding. To collect the necessary data for the study's aims, a structural questionnaire and a Geographic Information System (GIS) were employed. The coastal flooding of Victoria Island, Lagos, was studied using a 1962 topographic map and Landsat TM satellite images from 1984, ETM+ 2000, and 2011. ILWIS 3.2 and ArcGIS 3.9 were used to create a supervised digital picture categorization technique. To get the changes in the shorelines in these years, the topographic map of 1962 and the imagery of 1984 were pasted and crossed; 1984 and 2000; and 2000 and 2011 were also crossed. The findings show that there was a loss in landmass between 1962 and 1984 (31.4%), but there was a rise in landmass acquisition between 1984 and 2000 (81.89%) and 2000-2011 (62.11%). The study suggested that standard paved surfaces and drainages be built, as well as law enforcement on waste disposal, an integrated strategy to flooding management and control, and flood insurance policies, to lessen the impact of coastal flooding. The association between flooding and waste disposal was investigated using correlation. The findings reveal a substantial link between the occurrence of floods and poor waste disposal methods.
Author (S) Details
Oyinloye Michael Ajide
Department of Urban of Urban and Regional Planning, School of Environmental Technology, Federal University of Technology, Akure, Nigeria.
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