Quantifying risks and planning resilience measures

The modeling approach used to delineate the inundated areas depends on the baseline information and on each region’s specificities. The estimation of flood-inundated zones is contingent upon the selection of the flood peak flows for the different return periods being studied. In the eight areas with default flows provided by the APA, the flood peak flows provided were considered.

The generated inundation maps allowed for the development of a realistic risk assessment for the areas of study, resulting in the same number of flood risk maps. The flood risk quantification integrated the hazard mapping, which was modeled from inundation maps and the exposure obtained from the consequence mapping.

Frank Braunschweig is a senior product manager at Bentley Systems, Inc., based in Lisbon, Portugal.