The flood inundations maps are critical for disaster preparedness, response and recovery efforts. Accurate and detailed inundation map generation requires time and resources that may not be available for many small communities. Changes in terrain and flood protection infrastructure require updates for the inundation maps. We have created a real-time flood inundation map system on the web using height above the nearest drainage (HAND) method. The framework doesn’t require any server-side GIS or database processing. The framework allows users to select an area on the elevation map and generates the corresponding inundation map on the client-side. The platform allows users to modify elevation map, add or remove levees or reservoirs, and change modeling parameters for the inundation map generation. The platform generates inundation maps comparable to existing FEMA approved maps.
