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A Small Eddy Correction Algorithm for the Primitive Equations of the Ocean

In: Mathematical Modeling, Simulation, Visualization and e-Learning

Author

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  • T. Tachim Medjo
  • R. Temam

Abstract

Considering the interaction between the baroclinic and barotropic flows and using the idea of the Newton iteration, a small eddy correction method is proposed for approximating and numerically solving the primitive equations of the cean. We assume that the barotropic approximation to the solution is known. Formally applying the Newton iterative procedure to the baroclinic flow equation, we then generate approximate systems. It is shown that the first step leads to the well known quasi-geostrophic equations. The convergence analysis is presented and the results show that the small eddy correction method can greatly improve the accuracy of the quasi-geostrophic approximate solution. More precisely, we prove that the approximate system derived from the procedure converges to the primitive equations of the ocean and we estimate the rate of convergence as a function of the aspect ratio of the ocean. Some numerical simulations of a wind-driven circulation problem are presented to illustrate the method.

Suggested Citation

  • T. Tachim Medjo & R. Temam, 2008. "A Small Eddy Correction Algorithm for the Primitive Equations of the Ocean," Springer Books, in: Dialla Konaté (ed.), Mathematical Modeling, Simulation, Visualization and e-Learning, pages 107-150, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-74339-2_8
    DOI: 10.1007/978-3-540-74339-2_8
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