Articles | Volume 3, issue 4
Earth Surf. Dynam., 3, 577–585, 2015
https://doi.org/10.5194/esurf-3-577-2015
Earth Surf. Dynam., 3, 577–585, 2015
https://doi.org/10.5194/esurf-3-577-2015

Research article 15 Dec 2015

Research article | 15 Dec 2015

Grain sorting in the morphological active layer of a braided river physical model

P. Leduc et al.

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A physical scale model of a gravel-bed braided river was used to measure vertical grain size sorting in the morphological active layer defined as the bed material between the maximum and minimum bed elevation. By normalizing active layer thickness and dividing into 10 sublayers we show that all grain sizes occur with almost equal frequency in all sublayers. Occurrence of patches and strings of coarser material relates to preservation of particular morphotextural features within the active layer.