Human-flood interactions in Rome over the past 150 years

摘要: Abstract. Throughout history, the socio-economic development of city Rome has been intertwined with magnitude and frequency flooding events from Tiber, one Italy's largest rivers. Ancient mostly developed on hills, while Tiber's floodplain was mainly exploited for agricultural purposes. A few small communities did settle in riparian areas but they had a relatively peaceful relationship frequent occurrence events. Instead, numerous people live nowadays modern districts floodplain, unaware their exposure to potentially catastrophic flooding. This research work aims explore dynamics changing flood risk between these two opposite pictures ancient contemporary Rome. To this end, we carried out socio-hydrological study by using long time series hydrological (extreme events) social (human population dynamics) processes, along information about human interactions environment (flood defence structures). The historical analysis showed how water systems have co-evolving over time, being abruptly altered an extreme event 1870, just before became capital recently unified Italy. outcomes were then compared results model simulating emerging mutual shaping floods societies.