| 1 | %% ================================================================ |
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| 2 | %% Abstract |
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| 3 | %% ================================================================ |
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| 4 | |
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| 5 | %% Common part between NEMO-SI3-TOP |
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| 6 | \NEMO\ (``Nucleus for European Modelling of the Ocean'') is a framework of ocean-related engines. |
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| 7 | It is intended to be a flexible tool for studying the ocean dynamics and thermodynamics (``blue ocean''), |
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| 8 | as well as its interactions with the components of the Earth climate system over |
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| 9 | a wide range of space and time scales. |
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| 10 | Within \NEMO, the ocean engine is interfaced with a sea-ice model (\SIcube\ or |
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| 11 | \href{http://github.com/CICE-Consortium/CICE}{CICE}), |
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| 12 | passive tracers and biogeochemical models (\TOP) and, |
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| 13 | via the \href{http://portal.enes.org/oasis}{OASIS} coupler, |
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| 14 | with several atmospheric general circulation models. |
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| 15 | It also supports two-way grid embedding by means of the \href{http://agrif.imag.fr}{AGRIF} software. |
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| 16 | |
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| 17 | %% Specific part |
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| 18 | The primitive equation model is adapted to regional and global ocean circulation problems down to |
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| 19 | kilometric scale. |
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| 20 | Prognostic variables are the three-dimensional velocity field, a non-linear sea surface height, |
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| 21 | the \textit{Conservative} Temperature and the \textit{Absolute} Salinity. |
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| 22 | In the horizontal direction, the model uses a curvilinear orthogonal grid and |
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| 23 | in the vertical direction, a full or partial step $z$-coordinate, or $s$-coordinate, or |
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| 24 | a mixture of the two. |
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| 25 | The distribution of variables is a three-dimensional Arakawa C-type grid. |
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| 26 | Various physical choices are available to describe ocean physics, |
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| 27 | so as various HPC functionalities to improve performances. |
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