Abstract

Samples of intermittent suspension sediment from 10 to 60 cm above the sediment-water interface were collected below breaking waves. No consistent trend of mean or standard deviation was found with height. Grain size histograms show that most samples were not normal or lognormal but were basically unimodal and asymmetric. Plots of cumulative frequency distribution on probability paper can be described as intersecting straight line segments. These observed distributions of grains captured while in actual suspension thus do not support the conjectures of simple or truncated log normality for sediment in that state.

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