Geographic

Flood is one of the most costliest disaster due to its great impact on human lives and property. It is the most recurring and frequent disaster worldwide annually. It can be caused by several factors like heavy rainfall, riverbank erosion, change of land cover due to development activities leading to urban flooding, cyclones, earthquakes, topography, global warming, etc. The traditional floods mapping and studies were based on conventional surveys and historical flood records. Mapping of flood vulnerability area is necessary so as to mitigate future disaster. Geographical Information System enable users to map, store and process different problems like management of resources, planning, etc and they can provide information visually. Therefore, all the accessible causative factors of flood are selected and used for the analysis of mapping of flood prone area. Such factors are elevation, slope, land use/land cover and drainage density.