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The Movida Project to Support the Update of Flood Risk Maps in the Po River District: Methodology for Flood Damage Assessment

Author(s): Francesco Ballio; Clara Armaroli; Marcello Arosio; Chiara Arrighi; Enrico Borgogno Mondino; Francesca Carisi; Fabio Castelli; Paolo Ciavola; Silvia De Biaggi; Gianni Di Pietro; Alessio Domeneghetti; Enrico Duo; Gabriele Farina; Alice Gallazzi; Federica Ghilardi; Riccardo Giusti; Mohammed Hammouti; Fabio Luino; Mario Martina; Daniela Molinari; Beatrice Monteleone; Natasha Petruccelli; Marco Pilotti; Anna Rita Scorzini; Tommaso Simonelli; Simone Sterlacchini; Laura Turconi; Cesare Vasini; Marco Zazzeri; Laura Zoppi

Linked Author(s): Francesco Ballio, Chiara Arrighi, Daniela Molinari, Marco Pilotti, Anna Rita Scorzini

Keywords: Floods Directive; Flood Risk Maps; Flood Damage Modelling

Abstract: The European Floods Directive (2007/60/EC) requires that Member States develop and update every six years flood hazard and risk maps, to be used as the information basis for the development of Flood Risk Management Plans. To support such a process, the Po River District Authority signed in May 2020 an agreement with 20 Italian Universities and the Italian National Research Council (CNR) with the aim of transferring the state of the art about hydrology (including climate change effects), hydraulics and damage modelling into the production of the new maps, to be delivered by December 2021. This contribution describes the methods and tools developed by the consortium devoted to flood damage modelling (composed by 8 Universities and CNR), in the so-called MOVIDA project. The objective of the project was to provide an Information System able to perform an analytical evaluation and mapping of expected damage, overcoming the limitations of present maps where the evaluation of risk remains highly qualitative and subjective. Proper damage assessment tools were identified for all the five categories of exposed elements included in the Directive: population, infrastructures, economic activities, environmental and cultural heritage, and na-tech sites. These tools are thought to address specific requirements: (i) being valid/applicable for the whole District, (ii) being based on standardised and institutional data, available at national level, (iii) being calibrated (and possibly validated) in the Italian context. A dedicated Open Source Geographic Information System (i.e. QGIS plugin) was developed to support technicians in the implementation of proposed tools and in the visualisation and processing of damage results. The developed tool was transferred to Regional Authorities for flood damage evaluation and mapping to all areas at significant risk in the Po District.

DOI: https://doi.org/10.3850/IAHR-39WC2521711920221136

Year: 2022

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