Flood maps of Rainfall Event of November 2023 in Tuscany, Italy

To support the evaluation of the Digital Twin system of the SCORE project, we defined an improved flood mapping procedure based on high-resolution SAR data to obtain flood maps of hystorical events, which will be used as validation reference for the Digital Twin outputs maps.  We analyzed a recent significant flood event occurred in the densely populated Florence-Prato-Pistoia plain area (Tuscany, Italy) between 2 and 5 November, 2023.  The estimated total losses for the entire region are at 1890 million euros.The available images used for the the flood event analysis were acquired by COSMO-SkyMed Second Generation on 5 November 2023 in dual polarization HH-HV and by COSMO-SkyMed First Generation on 6 November 2023 in HH polarization. The flood mapping procedure, based on clustering and fuzzy logic approach, has been applied to Florence-Prato-Pistoia plain study area in rural areas and, when cross-polarization data are available, in urban areas. The dataset includes two images: the first one (named flood_05.11.2023_compressed.tif) is a map of the flood extent in rural areas of the region of interest and urban areas of Pistoia, Prato, Sesto Fiorentino and Firenze on 5 November; the second one (named flood_06.11.2023_compressed.tif) is a map of the flood extent in rural areas of the region of interest on 6 November.