title: A multi-disciplinary approach to evaluate pluvial floods risk under changing climate: The case study of the municipality of Venice (Italy).
abstract: Global climate change is likely to pose increasing threats in nearly all sectors and across all sub-regions worldwide (IPCC, 2014). Particularly, extreme weather events (e.g. heavy precipitations), together with changing exposure and vulnerability patterns, are expected to increase the damaging effect of storms, pluvial floods and coastal flooding. Developing climate and adaptation services for local planners and decision makers is becoming essential to transfer and communicate sound scientific knowledge about climate related risks and foster the development of national, regional and local adaptation strategies. In order to analyze the effect of climate change on pluvial flood risk and advice adaptation planning, a Regional Risk Assessment (RRA) methodology was developed and applied to the urban territory of the municipality of Venice. Based on the integrated analysis of hazard, exposure, vulnerability and risk, RRA allows identifying and prioritizing targets and sub-areas that are more likely to be affected by pluvial flood risk due to heavy precipitation events in the future scenario 2041-2050. From the early stages of its development and application, the RRA followed a bottom-up approach taking into account the requests, knowledge and perspectives of local stakeholders of the North Adriatic region by means of interactive workshops, surveys and discussions. Results of the analysis showed that all targets (i.e. residential, commercial-industrial areas and infrastructures) are vulnerable to pluvial floods due to the high impermeability and low slope of the topography. The spatial pattern of risk mostly reflects the distribution of the hazard and the districts with the higher percentage of receptors' surface in the higher risk classes (i.e. very high, high and medium) are Lido-Pellestrina and Marghera. The paper discusses how risk-based maps and statistics integrate scientific and local knowledge with the final aim to mainstream climate adaptation in the development of risk mitigation and urban plans.
authors.affiliation: Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), via Augusto Imperatore 16, I-73100 Lecce, Italy; Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari Venice, Via delle Industrie 21/8, I-30175 Marghera, Venezia, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Sperotto
authors.affiliation: Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), via Augusto Imperatore 16, I-73100 Lecce, Italy; Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari Venice, Via delle Industrie 21/8, I-30175 Marghera, Venezia, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Torresan
authors.affiliation: Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), via Augusto Imperatore 16, I-73100 Lecce, Italy; Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari Venice, Via delle Industrie 21/8, I-30175 Marghera, Venezia, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Gallina
authors.affiliation: International Centre for Theoretical Physic (ICTP), Strada Costiera 11, I-34151 Trieste, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Coppola
authors.affiliation: Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), via Augusto Imperatore 16, I-73100 Lecce, Italy; Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari Venice, Via delle Industrie 21/8, I-30175 Marghera, Venezia, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Critto
authors.affiliation: Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), via Augusto Imperatore 16, I-73100 Lecce, Italy; Department of Environmental Sciences, Informatics and Statistics, University Ca' Foscari Venice, Via delle Industrie 21/8, I-30175 Marghera, Venezia, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Marcomini
mesh_terms: D002947:Cities; D057231:Climate Change; D004784:Environmental Monitoring / Q000379:methods; D055868:Floods / Q000706:statistics & numerical data*; D007558:Italy; D018570:Risk Assessment / Q000379:methods*; D045483:Rivers; D014887:Weather
keywords: Climate change; GIS maps; Pluvial floods; Risk assessment; Urban areas