Reference : Modelling coastal/shelf systems with emphasis on long term trends
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
Modelling coastal/shelf systems with emphasis on long term trends
Nihoul, Jacques mailto [Université de Liège - ULiège > Services généraux (Faculté des sciences) > Relations académiques et scientifiques (Sciences) >]
Djenidi, Salim mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > GeoHydrodynamics and Environment Research (GHER) >]
Hecq, Jean-Henri mailto [Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Océanologie >]
International Journal for Numerical Methods in Engineering
John Wiley & Sons, Inc
Yes (verified by ORBi)
United Kingdom
[en] Hydrodynamic studies of continental seas have been primarily concerned with tides and storm surges and the associated currents which can have velocities as high as several metres per second.
However, the period of the dominant tide is only about half a day and the characteristic life time of a synoptic weather pattern is of the order of a few days. The very strong currents which are produced by the tides and the atmospheric forcing are thus relatively transitory and, over time scales of biological interest, they change and reverse so many times that they more or less cancel out, leaving only a small residual contribution to the net water circulation.
Mathematical modelling appears at present as the most reliable approach to the determination of the residual circulation and of the long term transport of nutrients and pollutants in the sea.
The residual circulation model developed at the GeoHydrodynamics and Environment Research Laboratory of Liège University (GHER) is described and illustrated by its application to the West-European Continental Shelf.
Residual flow patterns on the shelf, and in particular in the Irish Sea and the North Sea, are presented and shown to be in excellent agreement with the observations.
The results are exploited to estimate the typical routes and times of residence of nutrients and pollutants and the subsequent long term changes in shelf ecosystems and in the Belgian coastal zone.
Centre Interfacultaire de Recherches en Océanologie - MARE

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