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revision 1.10 by mlosch, Thu Jul 3 18:10:31 2008 UTC revision 1.11 by dimitri, Thu Aug 14 16:12:41 2008 UTC
# Line 5  The MITgcm sea ice model (MITsim) is bas Line 5  The MITgcm sea ice model (MITsim) is bas
5  viscous-plastic (VP) dynamic-thermodynamic sea ice model  viscous-plastic (VP) dynamic-thermodynamic sea ice model
6  \citep{zhang97} first introduced by \citet{hibler79, hibler80}. In  \citep{zhang97} first introduced by \citet{hibler79, hibler80}. In
7  order to adapt this model to the requirements of coupled  order to adapt this model to the requirements of coupled
8  ice-ocean simulations, many important aspects of the original code have  ice-ocean state estimation, many important aspects of the original code have
9  been modified and improved:  been modified and improved:
10  \begin{itemize}  \begin{itemize}
11  \item the code has been rewritten for an Arakawa C-grid, both B- and  \item the code has been rewritten for an Arakawa C-grid, both B- and
12    C-grid variants are available; the C-grid code allows for no-slip    C-grid variants are available; the C-grid code allows for no-slip
13    and free-slip lateral boundary conditions;    and free-slip lateral boundary conditions;
14  \item two different solution methods for solving the nonlinear  \item two different solution methods for solving the nonlinear
15    momentum equations have been adopted: LSOR \citep{zhang97}, EVP    momentum equations have been adopted: LSOR \citep{zhang97}, and EVP
16    \citep{hunke97};    \citep{hunke97};
17  \item ice-ocean stress can be formulated as in \citet{hibler87};  \item ice-ocean stress can be formulated as in \citet{hibler87} or as in \citet{cam08};
18  \item ice variables \ml{can be} advected by sophisticated, \ml{conservative}  \item ice variables \ml{can be} advected by sophisticated, \ml{conservative}
19    advection schemes \ml{with flux limiting};    advection schemes \ml{with flux limiting};
20  \item growth and melt parameterizations have been refined and extended  \item growth and melt parameterizations have been refined and extended
21    in order to allow for automatic differentiation of the code.    in order to allow for more stable automatic differentiation of the code.
22  \end{itemize}  \end{itemize}
23    
24  The sea ice model is tightly coupled to the ocean compontent of the  The sea ice model is tightly coupled to the ocean compontent of the MITgcm
25  MITgcm \citep{marshall97:_finit_volum_incom_navier_stokes, mitgcm02}.  \citep{mar97a}.  Heat, fresh water fluxes and surface stresses are computed
26  Heat, fresh water fluxes and surface stresses are computed from the  from the atmospheric state and modified by the ice model at every time step.
 atmospheric state and modified by the ice model at every time step.  
27  The model equations and details of their numerical realization are summarized  The model equations and details of their numerical realization are summarized
28  in the appendix. Further documentation and model code can be found at  in the appendix. Further documentation and model code can be found at
29  \url{http://mitgcm.org}.  \url{http://mitgcm.org}.
30    
31  %\subsection{C-grid}  %\subsection{C-grid}
32  %\begin{itemize}  %\begin{itemize}

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