1997 Volume 41 Pages 1011-1016
In general, river sediment is classified according to its motion into three categories which consist of washload, suspended load, and bed load. The role of each category is different in the process of topographical growth of river. For instance, a part of washload is caught by vegetation on a sand bar and makes a new flood plain. But bed load never behave as washload, but it plays only a role of the bed material. This fact shows the significance of the actual survey for the each flux of these categories.
Authors conducted sediment transportation survey on Hinuma River during the flood caused on Aug. 22nd, '96. This paper describes the outline of newly developed devices for sediment transportation survey, and some hydraulic topics recognized through the survey.
