oinstantaneous unit hydrograph

a r t i c l e i n f o disasters, causing serious property damage and loss of lives (WMO, 2011). To reduce the impact of flooding, operational flood forecasting systems have been developed around the world (Todini, 2005). The growing necessity of these operational systems promotes the development of rainfall-runoff models, which are commonly used in the existing systems (Todini, 2005; WMO, nal techno ls for flood r the pas