CABARET in the ocean gyres |
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| Authors: | SA Karabasov PS Berloff VM Goloviznin |
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| Institution: | aUniversity of Cambridge, Department of Engineering, Whittle Laboratory, Cambridge, UK;bImperial College London, Grantham Institute for Climate Change and Department of Mathematics, London, UK;cWoods Hole Oceanographic Institution, Physical Oceanography Department, Woods Hole, USA;dMoscow Institute of Nuclear Safety of Russian Academy of Science, Moscow, Russia |
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| Abstract: | A new high-resolution Eulerian numerical method is proposed for modelling quasigeostrophic ocean dynamics in eddying regimes. The method is based on a novel, second-order non-dissipative and low-dispersive conservative advection scheme called CABARET. The properties of the new method are compared with those of several high-resolution Eulerian methods for linear advection and gas dynamics. Then, the CABARET method is applied to the classical model of the double-gyre ocean circulation and its performance is contrasted against that of the common vorticity-preserving Arakawa method. In turbulent regimes, the new method permits credible numerical simulations on much coarser computational grids. |
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| Keywords: | Mesoscale ocean dynamics Eddy resolving simulations High-resolution schemes |
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