| 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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