Die Kuste, 81 (2014), 369-392 
380 
Figure 7: Example for morphologic alteration based on annual bathymetries. 
The annual topographies are the prerequisite for modelling further datasets on the tem 
poral evolution of die seabed: 
• morphologic alteration (Fig. 7), e.g. topographic differences for 1, 5, 10, 30 years, 
• morphologic space (Fig. 8), e.g. difference of the historically highest and lowest wa 
ter depth at each location over distinct time intervals (5, 10, 30 years) and 
• morphologic drive (Fig. 9), e.g. difference of maximum and minimum annual depth 
change for distinct time intervals (5, 10, 30 years). 
The distribution of statistical parameters, derived from die cumulative grain size distribu 
tion, was modelled for sediment properties, e.g. median (Fig. 11) or sorting (Fig. 10) as 
well as different grain size classes. These parameters are helpful in at least analyzing sedi 
ment dynamics on die shelf beyond 20 m of water depth, where batiiymetric time series 
are scarce and even morphological changes are with die range of uncertainty of die sur 
vey data.