The floodplain hydraulics were modelled with a 2D numerical river and floodplain model.

We validated the 2D model with in situ velocity measurements on the floodplain.

Distinct small, medium and large floodplain flows develop during inundations.

Spatial and temporal variability in floodplain flow link to observed deposition.

Empirical relationships were developed explaining part of floodplain sedimentation.