In contrast to the basic assumption of a homogeneous population underlying common approaches flood frequency analysis, events often arise from different runoff-generating processes. many large river basins, diversity these processes within tributary basins and superposition their waves increase complexity statistical modeling. Under circumstances, allocation most effective protection measures r...

Abstract. Coastal flooding is driven by the combination of (high) tide and storm surge, latter being caused strong winds low pressure in tropical extratropical cyclones. The surge astronomical defined as tide. To gain an understanding threat posed coastal to identify areas that are especially at risk, now future, it crucial accurately model inundation. Most models used simulate inundation scale...

In general, the Muskingum-Cunge method is used to route floods when observed flood data are not available. this study, applicability of Variable Parameter (VPMC) routing was investigated in a gauged creek reach. The reach between two stream gauging stations. Some physical characteristics reach, such as length, bed slope, cross sections, and Manning’s coefficient (n), were determined by using di...

estimation of parameters of a hydrologic model is undertaken using a procedure called “calibration” in order to obtain predictions as close as possible to observed values. this study aimed to use the particle swarm optimization (pso) algorithm for automatic calibration of the hec-hms hydrologic model, which includes a library of different event-based models for simulating the rainfall-runoff pr...

forest cover is one of the most effective factors in reducing flooding in northern iran, so that in recent years the destruction, land use changing and uncontrolled harvesting of forest areas, has greatly increased the number and magnitude of floods. so far, there have been few studies on forest hydrology in iran, particularly the northern hyrcanian forests. this study examines the impact of a ...

Abstract Reducing the damage due to landslide dam failures requires prediction of flood hydrographs. Although progressive failure is one main modes dams, no method available. This study develops a for predicting failure. The proposed consists model and overtopping erosion model. can reproduce collapse progression from toe predict longitudinal shape reservoir water level when overflows. uses the...

Natural river channels that are sediment supply limited due to upstream water management practices and/or flow regulation often subject in-channel bed degradation and surface restructuring during natural flood hydrographs or controlled releases from dams. The heterogeneity of sizes present in these means different size classes transported more actively parts the hydrograph. A series laboratory ...