Flash floods cause great harm to people’s lives and property safety. Rainfall is one of the main causes flash in small watersheds. The uncertainty rainfall events results inconsistency between traditional single pattern actual process, which poses a challenge for early warning forecasting floods. To carry out effective flood forecasting, this paper proposes novel by coupling total peak intensit...

A rainfall regionalization method based on variation coefficient was applied with a variant in the construction of flash flood hyetographs several return periods using shape historical event that occurred September 2021 Tlalnepantla River basin, Mexico, caused severe damage to population and its infrastructure few hours. The simulated semi-distributed model free software HEC-HMS order obtain ou...

Computer applications to storm runoff prediction have revolutionized the watershed modeling techniques. In general, a watershed is modeled as a system with inputs and outputs (Chow 1964). A system can be lumped or distributed, depending upon the spatial and temporal characteristics of the design variables used in the model. A lumped parameter ignores the variability in space. On the other hand,...

Abstract In Iraq, the Diyala River (DR) occasionally experiences both droughts and floods. The DR is supplying amount of water to Tigris at south Baghdad. Estimation runoff from precipitation very important because its impact on decision-making in resources management. conceptual distributed hydrological model was adopted by HEC-HMS, Geo-HMS, GIS software, remote digital elevation models were p...