/[MITgcm]/manual/s_examples/baroclinic_gyre/fourlayer.tex
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revision 1.12 by cnh, Thu Feb 28 19:32:19 2002 UTC revision 1.13 by adcroft, Thu May 16 15:54:37 2002 UTC
# Line 2  Line 2 
2  % $Name$  % $Name$
3    
4  \section{Four Layer Baroclinic Ocean Gyre In Spherical Coordinates}  \section{Four Layer Baroclinic Ocean Gyre In Spherical Coordinates}
5    \label{www:tutorials}
6  \label{sect:eg-fourlayer}  \label{sect:eg-fourlayer}
7    
8  \bodytext{bgcolor="#FFFFFFFF"}  \bodytext{bgcolor="#FFFFFFFF"}
# Line 26  is simulated, but the code is now config Line 27  is simulated, but the code is now config
27  for four layers and in a spherical polar coordinate system.  for four layers and in a spherical polar coordinate system.
28    
29  \subsection{Overview}  \subsection{Overview}
30    \label{www:tutorials}
31    
32  This example experiment demonstrates using the MITgcm to simulate  This example experiment demonstrates using the MITgcm to simulate
33  a baroclinic, wind-forced, ocean gyre circulation. The experiment  a baroclinic, wind-forced, ocean gyre circulation. The experiment
# Line 118  The vertical spacing, $\Delta z$, is con Line 120  The vertical spacing, $\Delta z$, is con
120  \end{figure}  \end{figure}
121    
122  \subsection{Equations solved}  \subsection{Equations solved}
123    \label{www:tutorials}
124  For this problem  For this problem
125  the implicit free surface, {\bf HPE} (see section \ref{sect:hydrostatic_and_quasi-hydrostatic_forms}) form of the  the implicit free surface, {\bf HPE} (see section \ref{sect:hydrostatic_and_quasi-hydrostatic_forms}) form of the
126  equations described in Marshall et. al \cite{marshall:97a} are  equations described in Marshall et. al \cite{marshall:97a} are
# Line 202  e.g. $\frac{\partial \theta}{\partial \v Line 205  e.g. $\frac{\partial \theta}{\partial \v
205    
206    
207  \subsection{Discrete Numerical Configuration}  \subsection{Discrete Numerical Configuration}
208    \label{www:tutorials}
209    
210   The domain is discretised with   The domain is discretised with
211  a uniform grid spacing in latitude and longitude  a uniform grid spacing in latitude and longitude
# Line 261  field solution method is described in se Line 265  field solution method is described in se
265  \ref{sect:finding_the_pressure_field}.  \ref{sect:finding_the_pressure_field}.
266    
267  \subsubsection{Numerical Stability Criteria}  \subsubsection{Numerical Stability Criteria}
268    \label{www:tutorials}
269    
270  The Laplacian viscosity coefficient, $A_{h}$, is set to $400 m s^{-1}$.  The Laplacian viscosity coefficient, $A_{h}$, is set to $400 m s^{-1}$.
271  This value is chosen to yield a Munk layer width,  This value is chosen to yield a Munk layer width,
# Line 340  S_{c} = \frac{c_{g} \delta t}{ \Delta x} Line 345  S_{c} = \frac{c_{g} \delta t}{ \Delta x}
345  stability limit of 0.25.  stability limit of 0.25.
346        
347  \subsection{Code Configuration}  \subsection{Code Configuration}
348    \label{www:tutorials}
349  \label{SEC:eg_fourl_code_config}  \label{SEC:eg_fourl_code_config}
350    
351  The model configuration for this experiment resides under the  The model configuration for this experiment resides under the
# Line 359  experiments. Below we describe the custo Line 365  experiments. Below we describe the custo
365  to these files associated with this experiment.  to these files associated with this experiment.
366    
367  \subsubsection{File {\it input/data}}  \subsubsection{File {\it input/data}}
368    \label{www:tutorials}
369    
370  This file, reproduced completely below, specifies the main parameters  This file, reproduced completely below, specifies the main parameters
371  for the experiment. The parameters that are significant for this configuration  for the experiment. The parameters that are significant for this configuration
# Line 946  goto code Line 953  goto code
953  \begin{rawhtml}</PRE>\end{rawhtml}  \begin{rawhtml}</PRE>\end{rawhtml}
954    
955  \subsubsection{File {\it input/data.pkg}}  \subsubsection{File {\it input/data.pkg}}
956    \label{www:tutorials}
957    
958  This file uses standard default values and does not contain  This file uses standard default values and does not contain
959  customisations for this experiment.  customisations for this experiment.
960    
961  \subsubsection{File {\it input/eedata}}  \subsubsection{File {\it input/eedata}}
962    \label{www:tutorials}
963    
964  This file uses standard default values and does not contain  This file uses standard default values and does not contain
965  customisations for this experiment.  customisations for this experiment.
966    
967  \subsubsection{File {\it input/windx.sin\_y}}  \subsubsection{File {\it input/windx.sin\_y}}
968    \label{www:tutorials}
969    
970  The {\it input/windx.sin\_y} file specifies a two-dimensional ($x,y$)  The {\it input/windx.sin\_y} file specifies a two-dimensional ($x,y$)
971  map of wind stress ,$\tau_{x}$, values. The units used are $Nm^{-2}$ (the  map of wind stress ,$\tau_{x}$, values. The units used are $Nm^{-2}$ (the
# Line 969  The included matlab program {\it input/g Line 979  The included matlab program {\it input/g
979  code for creating the {\it input/windx.sin\_y} file.  code for creating the {\it input/windx.sin\_y} file.
980    
981  \subsubsection{File {\it input/topog.box}}  \subsubsection{File {\it input/topog.box}}
982    \label{www:tutorials}
983    
984    
985  The {\it input/topog.box} file specifies a two-dimensional ($x,y$)  The {\it input/topog.box} file specifies a two-dimensional ($x,y$)
# Line 980  The included matlab program {\it input/g Line 991  The included matlab program {\it input/g
991  code for creating the {\it input/topog.box} file.  code for creating the {\it input/topog.box} file.
992    
993  \subsubsection{File {\it code/SIZE.h}}  \subsubsection{File {\it code/SIZE.h}}
994    \label{www:tutorials}
995    
996  Two lines are customized in this file for the current experiment  Two lines are customized in this file for the current experiment
997    
# Line 1006  the vertical domain extent in grid point Line 1018  the vertical domain extent in grid point
1018  \end{small}  \end{small}
1019    
1020  \subsubsection{File {\it code/CPP\_OPTIONS.h}}  \subsubsection{File {\it code/CPP\_OPTIONS.h}}
1021    \label{www:tutorials}
1022    
1023  This file uses standard default values and does not contain  This file uses standard default values and does not contain
1024  customisations for this experiment.  customisations for this experiment.
1025    
1026    
1027  \subsubsection{File {\it code/CPP\_EEOPTIONS.h}}  \subsubsection{File {\it code/CPP\_EEOPTIONS.h}}
1028    \label{www:tutorials}
1029    
1030  This file uses standard default values and does not contain  This file uses standard default values and does not contain
1031  customisations for this experiment.  customisations for this experiment.
1032    
1033  \subsubsection{Other Files }  \subsubsection{Other Files }
1034    \label{www:tutorials}
1035    
1036  Other files relevant to this experiment are  Other files relevant to this experiment are
1037  \begin{itemize}  \begin{itemize}
# Line 1029  dxF, dyF, dxG, dyG, dxC, dyC}. Line 1044  dxF, dyF, dxG, dyG, dxC, dyC}.
1044  \end{itemize}  \end{itemize}
1045    
1046  \subsection{Running The Example}  \subsection{Running The Example}
1047    \label{www:tutorials}
1048  \label{SEC:running_the_example}  \label{SEC:running_the_example}
1049    
1050  \subsubsection{Code Download}  \subsubsection{Code Download}
1051    \label{www:tutorials}
1052    
1053   In order to run the examples you must first download the code distribution.   In order to run the examples you must first download the code distribution.
1054  Instructions for downloading the code can be found in section  Instructions for downloading the code can be found in section
1055  \ref{sect:obtainingCode}.  \ref{sect:obtainingCode}.
1056    
1057  \subsubsection{Experiment Location}  \subsubsection{Experiment Location}
1058    \label{www:tutorials}
1059    
1060   This example experiments is located under the release sub-directory   This example experiments is located under the release sub-directory
1061    
# Line 1045  Instructions for downloading the code ca Line 1063  Instructions for downloading the code ca
1063  {\it verification/exp2/ }  {\it verification/exp2/ }
1064    
1065  \subsubsection{Running the Experiment}  \subsubsection{Running the Experiment}
1066    \label{www:tutorials}
1067    
1068   To run the experiment   To run the experiment
1069    
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