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There are three main steps in the generation of these four river flash flood impact catchments summary layers: 1) river flash flood hazard forecasting using blended radar and NWP precipitation, 2) river flash flood impact prediction, 3) summarising river flash flood impacts at the catchment scale (Figure 2).
Figure 2: Workflow used to generate the radar-based river flash flood impact catchment summary layers.
Step 1: River Flash Flood Hazard Forecasts
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