Fig. 6

Cluster memberships on the tidal flats of the Hörnum tidal basin, sample application A2 using predictor group “H + S,” i.e., both hydrodynamic and sediment predictor variables. The area within the rectangle is the test area (station symbols as circles); the rest of the basin is the training area (station symbols as squares). The cluster memberships at the sample stations are “observed” data; they are identical to those given in Fig. 5. A cluster membership was not predicted a in those parts which are continuously covered with water and b in some (shallow) areas near the shore. In those nearshore areas, the set of environmental variables was incomplete because the observed sediment data were not dense enough for an interpolation