Published Paper Details:

Thanjavur district is primarily an agricultural area enclosed with irrigation system of the Cauvery in Tamil Nadu. But during the monsoon period flooding has been disrupted the areas and directely effected the soil erosion in those areas. The flood hazard assessment is one of the important task to understand the soil erosion of the area due to natural hazards. In this context, the present study to assess flood hazard prone areas using FIGUSED method adopted with remote sensing data and GIS technology. In FIGUSED method, seven parameters has been used such as flow accumulation, distance from the drainage network, elevation, land use, rainfall intensity and geology. The relative importance of each parameter for the occurrence and severity of flood has been connected to weight values. These values are calculated following a normalized weight parameter rating method. According to their weight values, information of the different parameters is superimposed, resulting to flood hazard mapping. The Flood Hazard Index (FHI) has been defined and a spatial analysis in a GIS environment has been applied for the estimation of its value. The historical flood events, accuracy and sensitivity analysis not examined in this study and it is only understand the flood hazard area. The study revealed that about 12% of the area falls under very high flood hazard and 26% high to moderate flood hazard zones and indicates that immediate attention have to be taken and protect the agricultural lands for the sustainable development of those areas.