Abstract: The US P-61 suspended-sediment sampler has an electrically operated valve in the nozzle and samples isokinetically the entire mass of water and sediment entering its nozzle. The Delft Bottle (DB) is a continuous flow-through ...

Abstract: Cyclic variations in bed load discharge at a point, which are an inherent part of the process of bed load movement, complicate calibration of bed load samplers and preclude the use of average rates to define sampling ...