Peer-Reviewed Journal Details
Mandatory Fields
Nash, S,Hartnett, M
2010
December
Ocean Dynamics
Nested circulation modelling of inter-tidal zones: details of a nesting approach incorporating moving boundaries
Published
()
Optional Fields
Nesting Circulation model Ghost cells Internal boundary Flooding and drying Moving boundary PRIMITIVE EQUATION MODEL OCEAN MODELS GRID MODELS SEA IMPLEMENTATION SCHEME FLOW
60
1479
1495
Nested circulation models developed to date either exclude the flooding and drying process or prohibit flooding and drying of nested boundaries; they are therefore ill-suited to the accurate modelling of inter-tidal areas. The authors have developed a nested model with moving boundaries which permits flooding and drying of both the interior domain and the nested boundaries. The model uses a novel approach to boundary formulation; ghost cells are incorporated adjacent to the nested boundary cells so that the nested boundaries operate as internal boundaries. When combined with a tailored adaptive interpolation technique, the approach facilitates a dynamic internal boundary. Details of model development are presented with particular emphasis on the treatment of the nested boundary. Results are presented for Cork Harbour, a natural coastal system with an extensive inter-tidal zone and a complex flow regime which provided a rigorous test of model performance. The nested model was found to achieve the accuracy of a high resolution single grid model for a much lower computational cost.
DOI 10.1007/s10236-010-0345-8
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