Joseph F. Atkinson

TL;DR: For aggregation of an initially monodisperse suspension, the fractal dimension was found to decrease over time in the initial stages of floc formation, corresponding to aggregates that are either relatively compact or loosely structured.

TL;DR: In this article, a conceptual model is developed based on the notion that the largest floods are just capable of moving the largest debris in the channel, and the model suggests that step pools evolve toward a condition of maximum flow resistance because maximum resistance implies maximum stability.

TL;DR: In this article, a nonintrusive photographic technique coupled with digital image processing for in-situ analysis of aggregates formed by the addition of alum [Al2(SO4)3·18H2O] to lake water and a montmorillonite clay suspension is described.

TL;DR: In this paper, the velocity of the leading edge of the tracer plume was measured and multiplied by a correction factor α to obtain an estimate of mean velocity, which was then used to calculate the mean velocity of other shallow overland flows, at least within the range of slope and Reynolds number.

TL;DR: In this paper, a model for predicting the sediment transport capacity of turbulent interrill flow on rough surfaces is developed from 1295 flume experiments with flow depths ranging from 3·4 to 43·4 mm, flow velocities from 0·09 to 0·65 m s−1, Reynolds numbers from 5000 to 26 949, Froude numbers from 0.23 to 2·93, bed slopes from 2·7° to 10°, sediment diameters from 1·098 to 1·16 mm, volumetric sediment concentrations, roughness concentrations