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To apply FIAT in a Delft-FEWS workflow, you will need an inundation grid series (e.g. satellite image or flood inundation model like Delft-FM or 3Di-subgrid) to hand over to FIAT. When providing a max-depth map to FIAT it can calcualte the (financial) damage per category on the map or as a total value for the entire area . This max-depth map needs to be prepared in FEWS as a grid mapstack series with one timestep. When you also provide a flood wave (grid mapstack series with multiple timestep) to FIAT, it can compute the human impact (mortality and casualties) by internal conversion of the wave into (vertical) rise rate and an arrival time map.
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