A Novel Framework for Urban Flood damage Assessment

In the current study, a novel method is proposed to analyze simultaneous impacts of non-stationarity in hydrological time series and land-use changes urban areas predict future floods probable damage. For this purpose, rainfall frequency analyses were conducted for two periods (first: 1979–2009 second: 1979–2019), results compared. Then, hydrologic modeling catchment was carried out using HEC-HMS model, obtained hydrographs fed HEC-RAS2D model estimating flood inundation areas. Using financial information assets their damage functions, damages related these evaluated through HEC-FIA model. The indicated that low return (e.g., 2-year flood), second period decreased with respect first one but increased 5 100 years. surface runoff, 4.65% increase due change 12% signed important role condition plays compared modeling. Moreover, showed 136% on average, among studied factors, rainfalls considerably more effective intensification. All points show socio-hydrological system completely dynamic.