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A local example of the relation between past occurrences of channel scour and the subsurface architecture elements.
Owing to its depositional history, the subsurface shows systematic patterns. Geologic characterisations and reconstructions can provide important contextual information to reduce uncertainties in subsurface parameter estimates.
The results show that scour holes in the Rhine-Meuse delta have a clear link with subsurface architecture and associated depositional history. The downstream area is characterised by high variability in erodible and non-erodible materials. As a result, a sharp increase in scour hole frequency is observed. This relation is especially clear for the Dordtsche Kil branch, near the city of Dordrecht, where subsurface architecture strongly influences the river bathymetry.
