Dealing with multisource information for estuarine flood risk appraisal in two Western European coastal areas

This research presents a methodology to extract relevant information from multiple sources post-event and a database building process that is applied to two contrasting estuaries in the Western European coastal area. Estuaries are usually affected by compound flooding triggers that cause diverse territorial damages. While fluvial flood risk assessment frameworks are well established in the literature, integrated management instruments that deal with estuarine flood risk remain incomplete and often lacking.

An integrated estuarine flood risk assessment framework is presented and discussed based on the extracted indicators. The framework is driven by two distinct dimensions (oceanic and hydrographic) and revealed the transversal position of triggers of estuarine floods, reflecting the compounding effects usually present in these areas.