Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Korn Peter A"'
Autor:
Witte, Maximilian, Lapolli, Fabricio Rodrigues, Freese, Philip, Götschel, Sebastian, Ruprecht, Daniel, Korn, Peter, Kadow, Christopher
Using the nonlinear shallow water equations as benchmark, we demonstrate that a simulation with the ICON-O ocean model with a 20km resolution that is frequently corrected by a U-net-type neural network can achieve discretization errors of a simulatio
Externí odkaz:
http://arxiv.org/abs/2404.06400
Accuracy and stability analysis of horizontal discretizations used in unstructured grid ocean models
One important tool at our disposal to evaluate the robustness of Global Circulation Models (GCMs) is to understand the horizontal discretization of the dynamical core under a shallow water approximation. Here, we evaluate the accuracy and stability o
Externí odkaz:
http://arxiv.org/abs/2309.12832
Autor:
Korn, Peter, Titi, Edriss S.
We prove global well-posedness of the ocean primitive equations coupled to advection-diffusion equations of the oceanic tracers temperature and salinity that are supplemented by the eddy parametrization model due to Gent-McWilliams and Redi. This par
Externí odkaz:
http://arxiv.org/abs/2304.03242
Accuracy and stability analysis of horizontal discretizations used in unstructured grid ocean models
Publikováno v:
In Ocean Modelling June 2024 189
Autor:
Mehlmann, Carolin, Korn, Peter
Publikováno v:
Journal of Computational Physics 428, 110086, 2021
We present a stable discretization of sea-ice dynamics on triangular grids that can straightforwardly be coupled to an ocean model on a triangular grid with Arakawa C-type staggering. The approach is based on a nonconforming finite element framework,
Externí odkaz:
http://arxiv.org/abs/2006.00547
Akademický článek
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Akademický článek
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Autor:
Mehlmann, Carolin, Korn, Peter
Publikováno v:
In Journal of Computational Physics 1 March 2021 428
Autor:
Düben, Peter D., Korn, Peter
In numerical ocean models coast lines change the direction from one grid cell to its neighbor and the value for viscosity is set to be as small as possible. Therefore, model simulations are not converged with resolution and boundary separation points
Externí odkaz:
http://arxiv.org/abs/1507.03080
Autor:
Düben, Peter D., Korn, Peter
We evaluate the influence of local resolution, eddy viscosity, coastline structure, and boundary conditions on the numerical representation of boundary currents in a finite element shallow-water model. The use of finite element discretization methods
Externí odkaz:
http://arxiv.org/abs/1502.00784