Summary
A three dimensional boundary fitted coordinate hydrodynamic model for simulation of ocean currents is briefly described. The model is tested on simple test cases with tidal and atmospheric forcing and the results are compared with analytical solutions. Finally, the two-dimensional version of the model is applied for simulating tidal and storm surge elevation and currents on the Norwegian continental shelf. The simulation is carried out both for a coarse and fine grid. The simulated sea elevation and currents are compared with observations and model results from the operational model at the Norwegian Meteorological Institute.
Zusammenfassung
Ein dreidimensionales hydrodynamisches Modell in randwert-angepaßten Koordinaten zur Simulation von Strömung im Meer wird kurz beschrieben. Das Modell wird an einfachen Beispielen mit Gezeiten- und atmosphärischer Anregung getestet und die Ergebnisse werden mit analytischen Lösungen verglichen. Die zweidimensionale Version des Modells wird benutzt zur Berechnung von gezeiten- und sturmflutbedingten Wasserständen und Strömungen auf dem Norwegischen Festlandsockel. Die Simulation wird mit einer feinen und einer groben Gitterauflösung durchgeführt. Die berechneten Wasserstände und Strömungen werden mit Beobachtungen und Modellergebnissen des operationellen Modells des Norwegischen Meteorologischen Instituts verglichen.
Résumé
Un modèle hydrodynamique tri-dimensionnel utilisant un système de coordonées adapté aux frontières permettant la simulation des courants océaniques est brièvement décrit. Le modèle est testé sur des cas simples avec le forçage de la marée et de l'atmosphére. Les résultats sont comparés aux solutions analytiques. Enfin la version bi-dimensionnelle du modèle est appliquée à la simulation des élévations du niveau (surcotes) liées à l'onde de marée et aux ondes de tempête et à celle des courants sur le plateau continental norvégien. Cette simulation est réalisée à la fois pour une grille grossière et une grille fine. Les surcotes et les courants simulés sont comparés à des observations ainsi qu'aux résultats obtenus du modèle opérationnel de l'Institut de Météorologie Norvégien.
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Mathisen, JP., Jenssen, Ø.O., Utnes, T. et al. A three dimensional boundary fitted coordinate hydrodynamic model part II: Testing and application of the model. Deutsche Hydrographische Zeitschrift 42, 187–213 (1989). https://doi.org/10.1007/BF02226294
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DOI: https://doi.org/10.1007/BF02226294