DamaGIS: a multisource geodatabase for collection of flood-related damage data

Abstract

Abstract. The present paper introduces a new database for collection of flood-related damage and assessment at the local scale. Every year in France, recurring flood events result in several million Euros of damage, and reducing the heavy consequences of floods has become a high priority. However, actions to reduce the impact of floods are often hindered by the 10 lack of damage data on past flood events. Even if partial data were available, data sharing within the research community is very limited and closely supervised to ensure the protection of individuals' personal information. In comparison, the growth of social and online media has provided access to broad information at the local and global scales. Therefore, the DamaGIS database offers an innovative bottom-up approach to gather and identify damage data from multiple sources, including new media. This paper also presents an easily reproducible method to assess the severity of flood damage. The DamaGIS database 15 is available at https://doi.org/10.5281/zenodo.1186623.

Assessing the impact of resolution and soil datasets on flash-flood modelling

“…floods, even in ungauged catchments (Payrastre et al, 2015(Payrastre et al, , 2016. A very recent database gathered flood-related damage data since 2011 in the south of France at a fine scale (Saint-Martin et al, 2018). Javelle et al (2014) demonstrated that these data provide valuable information for evaluating the simulated flood peak.…”