Die Kuste, 81 (2014), 369-392 
390 
essential in order to stipulate seaward boundary conditions when setting up estuary mod 
elling. Model simulation results show a high level of local variability of magnitude and 
direction in overall cyclonic coastal sediment transport in the German Bight. Further 
more, the model results suggest an equivalent effect of the tidal-driven sediment 
transport in contrast to the overall transport based on tides, winds and waves. 
It is not possible at present to provide reliable validation of the transported sediment 
mass on die basis of die available measurement data. A quantitative analogy with geologi 
cal analysis confirms die overall role of die German Bight as a net deposition area of sed 
iment. The models used predict a net deposition rate of between 13 and over 46 Mtyr 1 . 
To date this balance does not show the interaction between the coastal and estuarine 
transport process very well. 
The sediment deposition rate is closely linked with current variable meteorological 
forcing. Future research should consider the influence of dredging and dumping activities 
in the outer estuaries which are crucial for die net deposition rate. 
The morphodynamic studies of AufMod also show large variation between the vari 
ous simulation results. Evaluation of die AufMod project is limited, however, by the un 
certainty in the measurement data in space and time. Further development of morphody 
namic modelling, especially for the effects of interactions between the coast and estuaries, 
presents an ongoing challenge for future research projects. 
An elaborated final report, which includes all die results from the various institutions, 
is also available (FIeyer and Schrottke, 2013). 
8 References 
Boon, J., van der Kaaij, T., Vos, R.J., GERRITSEN, FL: Modelling of suspended particu 
late matter (SPM) in the Nordi Sea. Model set-up and first sensitivity analysis. Delft 
Flydraulics Research Report, Z2025, 1997. 
CASULLI, V. and ZANOLLI, P.: Semi-Implicit Numerical Modelling of Non-Flydrostatic 
Free-surface Flows for Environmental Problems. Matiiematical and Computer 
Modelling, 36,1131-1149, 2002. 
DE Kok, J.M.: Slibtransport langs de Nederlandse kust. Bronnen, fluxen en concentraties. 
RIKZ/OS/2004.148w, 2004. 
ElSMA, D.: Supply and deposition of suspended matter in die Nordi Sea. In: Nio, S.D., 
Schiittenlielm, R.T.E., Van Weering, T.C.E. (Eds.), Flolocene Marine Sedimentation 
in Nordi Sea Basin. Spec. Publ. Int. Assoc. Sedimentol. 5, 415-428, 1981. 
ElSMA, D. and IRION, G.: Suspended matter and sediment transport. In Pollution of die 
Nordi Sea -An Assessment, eds. W. Salomons, B.L. Bayne, E.K. Duursma and U. 
Forstner, Springer, 20-35, 1988. 
FlERVOUET, J.M. and BATES, P.: The TELEMAC Modelling System. Special Issue of 
Flydrological Processes 14, 2000. 
FIeyer, FI. and Schrottke, K.: Aufbau von integrierten Modellsystemen zur Analyse 
der langfristigen Morphodynamik in der Deutschen Bucht — AufMod 
http://edok01.tib.uni-hannover.de/edoks/e01fbl4/780783271.pdf, 
doi: 10.2314/GBV:780783271, 2013.