/[MITgcm]/manual/s_examples/barotropic_gyre/baro.tex
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revision 1.8 by cnh, Thu Feb 28 19:32:19 2002 UTC revision 1.12 by edhill, Sat Oct 16 03:40:13 2004 UTC
# Line 25  These ``case study'' documents include i Line 25  These ``case study'' documents include i
25  the experimental configuration and detailed information on how to  the experimental configuration and detailed information on how to
26  configure the MITgcm code and input files for each experiment.  configure the MITgcm code and input files for each experiment.
27    
28  \section{Barotropic Ocean Gyre In Cartesian Coordinates}  \section[Barotropic Gyre MITgcm Example]{Barotropic Ocean Gyre In Cartesian Coordinates}
29  \label{sect:eg-baro}  \label{sect:eg-baro}
30    \label{www:tutorials}
31    \begin{rawhtml}
32    <!-- CMIREDIR:eg-baro: -->
33    \end{rawhtml}
34    
35    
36  This example experiment demonstrates using the MITgcm to simulate  This example experiment demonstrates using the MITgcm to simulate
# Line 67  $\tau_0$ is set to $0.1N m^{-2}$. Line 71  $\tau_0$ is set to $0.1N m^{-2}$.
71  Figure \ref{FIG:eg-baro-simulation_config}  Figure \ref{FIG:eg-baro-simulation_config}
72  summarizes the configuration simulated.  summarizes the configuration simulated.
73    
74    %% === eh3 ===
75  \begin{figure}  \begin{figure}
76  \begin{center}  %% \begin{center}
77   \resizebox{7.5in}{5.5in}{  %%  \resizebox{7.5in}{5.5in}{
78     \includegraphics*[0.2in,0.7in][10.5in,10.5in]  %%    \includegraphics*[0.2in,0.7in][10.5in,10.5in]
79      {part3/case_studies/barotropic_gyre/simulation_config.eps} }  %%     {part3/case_studies/barotropic_gyre/simulation_config.eps} }
80  \end{center}  %% \end{center}
81    \centerline{
82      \scalefig{.95}
83      \epsfbox{part3/case_studies/barotropic_gyre/simulation_config.eps}
84    }
85  \caption{Schematic of simulation domain and wind-stress forcing function  \caption{Schematic of simulation domain and wind-stress forcing function
86  for barotropic gyre numerical experiment. The domain is enclosed bu solid  for barotropic gyre numerical experiment. The domain is enclosed bu solid
87  walls at $x=$~0,1200km and at $y=$~0,1200km.}  walls at $x=$~0,1200km and at $y=$~0,1200km.}
# Line 80  walls at $x=$~0,1200km and at $y=$~0,120 Line 89  walls at $x=$~0,1200km and at $y=$~0,120
89  \end{figure}  \end{figure}
90    
91  \subsection{Equations Solved}  \subsection{Equations Solved}
92    \label{www:tutorials}
93  The model is configured in hydrostatic form. The implicit free surface form of the  The model is configured in hydrostatic form. The implicit free surface form of the
94  pressure equation described in Marshall et. al \cite{marshall:97a} is  pressure equation described in Marshall et. al \cite{marshall:97a} is
95  employed.  employed.
# Line 114  flow vector $\vec{u}$. Line 124  flow vector $\vec{u}$.
124    
125    
126  \subsection{Discrete Numerical Configuration}  \subsection{Discrete Numerical Configuration}
127    \label{www:tutorials}
128    
129   The domain is discretised with   The domain is discretised with
130  a uniform grid spacing in the horizontal set to  a uniform grid spacing in the horizontal set to
# Line 122  that there are sixty grid cells in the $ Line 133  that there are sixty grid cells in the $
133  model is configured with a single layer with depth, $\Delta z$, of $5000$~m.  model is configured with a single layer with depth, $\Delta z$, of $5000$~m.
134    
135  \subsubsection{Numerical Stability Criteria}  \subsubsection{Numerical Stability Criteria}
136    \label{www:tutorials}
137    
138  The Laplacian dissipation coefficient, $A_{h}$, is set to $400 m s^{-1}$.  The Laplacian dissipation coefficient, $A_{h}$, is set to $400 m s^{-1}$.
139  This value is chosen to yield a Munk layer width \cite{adcroft:95},  This value is chosen to yield a Munk layer width \cite{adcroft:95},
# Line 175  S_{a} = \frac{| \vec{u} | \delta t}{ \De Line 187  S_{a} = \frac{| \vec{u} | \delta t}{ \De
187  of 0.5 and limits $\delta t$ to $1200s$.  of 0.5 and limits $\delta t$ to $1200s$.
188    
189  \subsection{Code Configuration}  \subsection{Code Configuration}
190    \label{www:tutorials}
191  \label{SEC:eg-baro-code_config}  \label{SEC:eg-baro-code_config}
192    
193  The model configuration for this experiment resides under the  The model configuration for this experiment resides under the
# Line 194  experiments. Below we describe the custo Line 207  experiments. Below we describe the custo
207  to these files associated with this experiment.  to these files associated with this experiment.
208    
209  \subsubsection{File {\it input/data}}  \subsubsection{File {\it input/data}}
210    \label{www:tutorials}
211    
212  This file, reproduced completely below, specifies the main parameters  This file, reproduced completely below, specifies the main parameters
213  for the experiment. The parameters that are significant for this configuration  for the experiment. The parameters that are significant for this configuration
# Line 305  notes. Line 319  notes.
319  \end{small}  \end{small}
320    
321  \subsubsection{File {\it input/data.pkg}}  \subsubsection{File {\it input/data.pkg}}
322    \label{www:tutorials}
323    
324  This file uses standard default values and does not contain  This file uses standard default values and does not contain
325  customizations for this experiment.  customizations for this experiment.
326    
327  \subsubsection{File {\it input/eedata}}  \subsubsection{File {\it input/eedata}}
328    \label{www:tutorials}
329    
330  This file uses standard default values and does not contain  This file uses standard default values and does not contain
331  customizations for this experiment.  customizations for this experiment.
332    
333  \subsubsection{File {\it input/windx.sin\_y}}  \subsubsection{File {\it input/windx.sin\_y}}
334    \label{www:tutorials}
335    
336  The {\it input/windx.sin\_y} file specifies a two-dimensional ($x,y$)  The {\it input/windx.sin\_y} file specifies a two-dimensional ($x,y$)
337  map of wind stress ,$\tau_{x}$, values. The units used are $Nm^{-2}$.  map of wind stress ,$\tau_{x}$, values. The units used are $Nm^{-2}$.
# Line 325  in MITgcm. The included matlab program { Line 342  in MITgcm. The included matlab program {
342  code for creating the {\it input/windx.sin\_y} file.  code for creating the {\it input/windx.sin\_y} file.
343    
344  \subsubsection{File {\it input/topog.box}}  \subsubsection{File {\it input/topog.box}}
345    \label{www:tutorials}
346    
347    
348  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 336  The included matlab program {\it input/g Line 354  The included matlab program {\it input/g
354  code for creating the {\it input/topog.box} file.  code for creating the {\it input/topog.box} file.
355    
356  \subsubsection{File {\it code/SIZE.h}}  \subsubsection{File {\it code/SIZE.h}}
357    \label{www:tutorials}
358    
359  Two lines are customized in this file for the current experiment  Two lines are customized in this file for the current experiment
360    
# Line 358  axis aligned with the y-coordinate. Line 377  axis aligned with the y-coordinate.
377  \end{small}  \end{small}
378    
379  \subsubsection{File {\it code/CPP\_OPTIONS.h}}  \subsubsection{File {\it code/CPP\_OPTIONS.h}}
380    \label{www:tutorials}
381    
382  This file uses standard default values and does not contain  This file uses standard default values and does not contain
383  customizations for this experiment.  customizations for this experiment.
384    
385    
386  \subsubsection{File {\it code/CPP\_EEOPTIONS.h}}  \subsubsection{File {\it code/CPP\_EEOPTIONS.h}}
387    \label{www:tutorials}
388    
389  This file uses standard default values and does not contain  This file uses standard default values and does not contain
390  customizations for this experiment.  customizations for this experiment.
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