Redoing the Risk Assessment
Your task for this module is to re-do some aspects of the Port Alberni Tsunami Risk Assessment using the weighted overlay tool. Specifically, we want to create a more accurate inundation zone that will allow for a more nuanced look at which areas might flood in the event of a Tsunami.
Learning Outcomes
- Gain Experience with Raster Overlay Methods
- Apply a Multi-Ring Buffers
- More Practice with Model Builder
Workflow
1 Use the Euclidean Distance tool to approximate distance from the waterbodies layer
2 Reclassify the distance and elevation rasters so they are binned in discrete intervals
3 Use the Weighted Overlay tool to create a more accurate Inundation Zone
4 Map areas in Port Alberni that could flood in the event of a Tsunami