Geospatial Assessment of Flood Vulnerability of Developed Properties in Calabar Metropolis, Cross River State, Nigeria
By Ugwu M. O., et al.
An important aftermath of flooding is the damage to physical structures such as buildings, bridges, roads, and public utilities. Through Remote Sensing and Geographic Information System techniques, the level of vulnerability of an entity can be established. The study assessed the flood vulnerability level of developed properties in Calabar Metropolis using geospatial techniques. Physical environmental domains such as land use, elevation, and proximity to river channel (drainage) were used to establish the developed properties vulnerability level. Finding revealed that waterbody and built up area were found to be highly vulnerable to flood based on landuse use types and they account for 43.73% of the total area of Calabar. The analysis revealed that 121 developed properties were under the low flood vulnerability level and this amounted to 27.50% of the total number of developed properties captured. Similarly, 208 (47.27%) developed properties were found under the moderately flood vulnerability while 111 (25.23%) of developed properties were found under the highly flood vulnerability level. The study concluded that most of the developed properties in the metropolis have medium level of vulnerability. The study recommended the need for various engineering reinforcement to improved developed properties resilience to flood action.