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CONCLUSION

With increased computational power and a larger
need for quantitative and case-specific information,
physics-based numerical modelling shows great
potential. The conceptual setting of this study illus-
trates the possibilities of the application of the
Delft3D model to investigate the changes in both the
morphology and stratigraphy of a delta subject to
wave reworking. Here, we evaluate the preservation
potential of an abandoned delta lobe by an upstream
avulsion under different fluvial regimes. Wave-
induced currents lead to specific sediment redistri-
bution patterns. Furthermore, combined fluvial and
wave-induced currents lead to an increase in off-
shore transport of fine sediments. Overall, the pre-
served delta, subsequent to being subjected to wave
reworking, shows an increased amount of sand-rich
deposits and an increased connectivity.

ACKNOWLEDGMENTS

We thank Statoil for funding this work. This paper
greatly benefitted from discussions with Marcel
Stive (Delft University of Technology), Bert Jagers
(Deltares) and Allard Martinius (Statoil).

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