Toward an adequate level of detail in flood risk assessments

Flood risk assessments require different disciplines to understand and model the underlying components hazard, exposure, vulnerability. Many methods data sets have been refined considerably cover more details of spatial, temporal, or process information. We compile case studies indicating that a considerable effect on overall assessment flood risk. But are these improvements worth effort? The adequate level detail is typically unknown prioritization in specific component hampered by lack an overarching view Consequently, creating dilemma potentially being too greedy wasteful with resources available for assessment. A “sweet spot” between those two would use all relevant known processes without using inefficiently. provide three key questions as qualitative guidance toward this spot.” For quantitative decision support, various contexts needed reveal sensitivity individual components. This could also support anticipation unforeseen events like event Germany Belgium 2021 increase reliability assessments.