Sediment transport constantly influences river and civil structures and the lack ofinformation about its exact amount makes management efforts less effective. Hence,achieving a proper procedure to estimate the sediment load in rivers is important. We usedsupport vector machine model to estimate the sediments of the Kakareza River in LorestanProvince and the results were compared with those obta...

A dam spillway is a hydraulic structure that appropriately and safely diverts the outflow to downstream, so that the dam stability and passing of flood flows can be guaranteed. Compared to straight crest spillway, an Ogee spillway with curvature in plan in a fixed-width can pass more flow. Therefore under the low hydraulic heads and the need for a smaller place in plane, they are considered as ...

Flow recession curves of rivers are commonly simulated by the equation of a single linear reservoir which is determined by one parameter, the retention constant. In reality, however, retention-discharge characteristics are hardly linear and recession curves can be approximated only sectionwise by linear reservoirs with retention "constant" values which increase while discharge decreases. In the...