Project: InaSAFE
Version: 4.0.0
In prior versions of InaSAFE, there was not any convenient way to configure exposure specific thresholds for a hazard. A simple way to understand this is to consider a hazard like tsunami. A tsunami wave that is 50cm deep sweeping onto the shore might be extremely hazardous ('high hazard level') to any people occupying the affected areas, while it may constitute a 'medium hazard level' for buildings in the same area since most well built structures have the potential to endure such an inundation.
In InaSAFE 4.0 we have added support for per-exposure hazard thresholds definitions. These thresholds are configurable via a new step in the keywords wizard during the hazard keyword definition process. This is demonstrated in the screencapture attached to this changelog entry. During the analysis process, the thresholds specific to the exposure layer will be applied when determining if exposure features are affected or not.
Note: If you wish to run the same analysis with different hazard thresholds, you will need to run the keywords wizard for the hazard layer prior to each analysis, and then adjust the thresholds accordingly.
This feature was funded by DFAT/WB-GFDRR