GIS Raster Application on Coastal Flood Hazard

Coastal flood is a phenomenon which happens resulting high tide in coastal area, where its location is lower than sea level. This flood accurs in Semarang City, The Province of Central Java, Indonesia. The floods are a very wide. All coastal areas in Semarang City are almost inundated by tidal flood. Therefore, it needs a precise means to map the flood distribution in Semarang City.