Subbasins Flood Risk Simulations Using 3D and Swat in the River Catchment of Terengganu

Real-time 3D simulation of the flood was conducted to identify and predict flooded zones in Terengganu river catchment. The use of GIS techniques in conjunction with remote sensing data obtained from ASTER DEM provides satellite imagery of high resolution. The flood was simulated with a visual prediction of very high flood risk zones to shallow flood risk zones within the catchment. The 3D from the ArcScene environment of ArcGIS 10.3 including ArcSWAT software package is used for the creation of flood risk models for mitigation. The models describe how 25 individual subbasins parameters were affected by flood in the catchment area of Terengganu. The flood models would be useful to relevant authorities for early warning scheme for robust mitigation, planning, and management.