Aggregated morphodynamic modelling of tidal inlets and estuaries

Aggregated morphodynamic modelling of tidal inlets and estuaries

Wang, Zhengbing (TU Delft Coastal Engineering; Hohai University; Deltares)
Townend, Ian (University of Southampton; Hohai University)
Stive, M.J.F. (TU Delft Coastal Engineering; Hohai University)

2020

Aggregation is used to represent the real world in a model at an appropriate level of abstraction. We used the convection-diffusion equation to
examine the implications of aggregation progressing from a three-dimensional (3D) spatial description to a model representing a system as a
single box that exchanges sediment with the adjacent environment. We highlight how all models depend on some forms of parametric closure,
which need to be chosen to suit the scale of aggregation adopted in the model. All such models are therefore aggregated and make use of some
empirical relationships to deal with sub-scale processes. One such appropriately aggregated model, the model for the aggregated scale
morphological interaction between tidal basin and adjacent coast (ASMITA), is examined in more detail and used to illustrate the insight that this
level of aggregation can bring to a problem by considering how tidal inlets and estuaries are impacted by sea level rise.

Aggregation
Morphodynamic modelling
Sea level rise
Sediment transport
Temporal and spatial scales
Tidal inlet and estuary

http://resolver.tudelft.nl/uuid:37830d0a-347b-4b17-a84e-d5c2171a65f3

https://doi.org/10.1016/j.wse.2020.03.004

Water Science and Engineering, 13 (1), 1-13

Institutional Repository

journal article

© 2020 Zhengbing Wang, Ian Townend, M.J.F. Stive