Simons, D. B., authorRichardson, E. V., authorNordin, C. F., Jr., author2022-08-112022-08-111965https://hdl.handle.net/10217/235546CER65DBS-EVR-CFN2.At head of title: International Association for Hydraulic Research.Includes bibliographical references.Two methods for computing bed-load transport from dune movement are considered. An equation based on the mean forward velocity and mean height of ripples and dunes is applied to flume data, and yields satisfactory results where the average dune shapes, velocities and heights can be determined accurately, as it the case for uniform two-dimensional flow. For unsteady flow, or for three-dimensional flow, where the size, shape, and movement of dunes varies in time and space, the volume of material passing through a series of incremental widths during some total time can be determined from sonic records. Bed-load transport rates are then estimated by integrating across the width of the stream. Applications of these concepts to field conditions are considered.reportsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Sediment transportSedimentation and depositionUnsteady movement of ripples and dunes related to bed-load transportText