/[MITgcm]/manual/s_algorithm/text/spatial-discrete.tex
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revision 1.20 by jmc, Tue Jun 27 19:10:32 2006 UTC revision 1.23 by jmc, Fri Aug 27 13:08:18 2010 UTC
# Line 74  directions simultaneously. Illustration Line 74  directions simultaneously. Illustration
74    
75  \begin{figure}  \begin{figure}
76  \begin{center}  \begin{center}
77  \resizebox{!}{2in}{ \includegraphics{part2/cgrid3d.eps}}  \resizebox{!}{2in}{ \includegraphics{s_algorithm/figs/cgrid3d.eps}}
78  \end{center}  \end{center}
79  \caption{Three dimensional staggering of velocity components. This  \caption{Three dimensional staggering of velocity components. This
80  facilitates the natural discretization of the continuity and tracer  facilitates the natural discretization of the continuity and tracer
# Line 126  grid data: ({\em model/inc/GRID.h}) Line 126  grid data: ({\em model/inc/GRID.h})
126  \begin{figure}  \begin{figure}
127  \begin{center}  \begin{center}
128  \begin{tabular}{cc}  \begin{tabular}{cc}
129    \raisebox{1.5in}{a)}\resizebox{!}{2in}{ \includegraphics{part2/hgrid-Ac.eps}}    \raisebox{1.5in}{a)}\resizebox{!}{2in}{ \includegraphics{s_algorithm/figs/hgrid-Ac.eps}}
130  & \raisebox{1.5in}{b)}\resizebox{!}{2in}{ \includegraphics{part2/hgrid-Az.eps}}  & \raisebox{1.5in}{b)}\resizebox{!}{2in}{ \includegraphics{s_algorithm/figs/hgrid-Az.eps}}
131  \\  \\
132    \raisebox{1.5in}{c)}\resizebox{!}{2in}{ \includegraphics{part2/hgrid-Au.eps}}    \raisebox{1.5in}{c)}\resizebox{!}{2in}{ \includegraphics{s_algorithm/figs/hgrid-Au.eps}}
133  & \raisebox{1.5in}{d)}\resizebox{!}{2in}{ \includegraphics{part2/hgrid-Av.eps}}  & \raisebox{1.5in}{d)}\resizebox{!}{2in}{ \includegraphics{s_algorithm/figs/hgrid-Av.eps}}
134  \end{tabular}  \end{tabular}
135  \end{center}  \end{center}
136  \caption{  \caption{
# Line 139  grid lines indicate the tracer cell boun Line 139  grid lines indicate the tracer cell boun
139  grid for all panels. a) The area of a tracer cell, $A_c$, is bordered  grid for all panels. a) The area of a tracer cell, $A_c$, is bordered
140  by the lengths $\Delta x_g$ and $\Delta y_g$. b) The area of a  by the lengths $\Delta x_g$ and $\Delta y_g$. b) The area of a
141  vorticity cell, $A_\zeta$, is bordered by the lengths $\Delta x_c$ and  vorticity cell, $A_\zeta$, is bordered by the lengths $\Delta x_c$ and
142  $\Delta y_c$. c) The area of a u cell, $A_c$, is bordered by the  $\Delta y_c$. c) The area of a u cell, $A_w$, is bordered by the
143  lengths $\Delta x_v$ and $\Delta y_f$. d) The area of a v cell, $A_c$,  lengths $\Delta x_v$ and $\Delta y_f$. d) The area of a v cell, $A_s$,
144  is bordered by the lengths $\Delta x_f$ and $\Delta y_u$.}  is bordered by the lengths $\Delta x_f$ and $\Delta y_u$.}
145  \label{fig:hgrid}  \label{fig:hgrid}
146  \end{figure}  \end{figure}
# Line 186  rAc(i,j)} and {\bf DYg(i,j)} positioned Line 186  rAc(i,j)} and {\bf DYg(i,j)} positioned
186  Fig.~\ref{fig:hgrid}b shows the vorticity cell. The length of the  Fig.~\ref{fig:hgrid}b shows the vorticity cell. The length of the
187  southern edge, $\Delta x_c$, western edge, $\Delta y_c$ and surface  southern edge, $\Delta x_c$, western edge, $\Delta y_c$ and surface
188  area, $A_\zeta$, presented in the vertical are stored in arrays {\bf  area, $A_\zeta$, presented in the vertical are stored in arrays {\bf
189  DXg}, {\bf DYg} and {\bf rAz}.  DXc}, {\bf DYc} and {\bf rAz}.
190  \marginpar{$A_\zeta$: {\bf rAz}}  \marginpar{$A_\zeta$: {\bf rAz}}
191  \marginpar{$\Delta x_c$: {\bf DXc}}  \marginpar{$\Delta x_c$: {\bf DXc}}
192  \marginpar{$\Delta y_c$: {\bf DYc}}  \marginpar{$\Delta y_c$: {\bf DYc}}
# Line 327  other grids, the horizontal grid descrip Line 327  other grids, the horizontal grid descrip
327  \begin{center}  \begin{center}
328    \begin{tabular}{cc}    \begin{tabular}{cc}
329    \raisebox{4in}{a)} \resizebox{!}{4in}{    \raisebox{4in}{a)} \resizebox{!}{4in}{
330    \includegraphics{part2/vgrid-cellcentered.eps}} & \raisebox{4in}{b)}    \includegraphics{s_algorithm/figs/vgrid-cellcentered.eps}} & \raisebox{4in}{b)}
331    \resizebox{!}{4in}{ \includegraphics{part2/vgrid-accurate.eps}}    \resizebox{!}{4in}{ \includegraphics{s_algorithm/figs/vgrid-accurate.eps}}
332  \end{tabular}  \end{tabular}
333  \end{center}  \end{center}
334  \caption{Two versions of the vertical grid. a) The cell centered  \caption{Two versions of the vertical grid. a) The cell centered
# Line 407  $\Delta r_c^{-1}$: {\bf RECIP\_DRc} ({\e Line 407  $\Delta r_c^{-1}$: {\bf RECIP\_DRc} ({\e
407    
408  \begin{figure}  \begin{figure}
409  \begin{center}  \begin{center}
410  \resizebox{4.5in}{!}{\includegraphics{part2/vgrid-xz.eps}}  \resizebox{4.5in}{!}{\includegraphics{s_algorithm/figs/vgrid-xz.eps}}
411  \end{center}  \end{center}
412  \caption{  \caption{
413  A schematic of the x-r plane showing the location of the  A schematic of the x-r plane showing the location of the

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