/[MITgcm]/manual/s_phys_pkgs/text/gridalt.tex
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revision 1.2 by edhill, Tue Oct 12 18:16:03 2004 UTC revision 1.3 by molod, Thu Jul 14 19:18:02 2005 UTC
# Line 5  Line 5 
5  \end{rawhtml}  \end{rawhtml}
6    
7  \subsection {Introduction}  \subsection {Introduction}
 To take advantage of a `high end' turbulence parameterization  
 (and convection parameterization), the vertical resolution near the surface  
 must be increased substantially as compared to the vertical resolution needed  
 aloft. This cannot be accomplished if the high end physics is computed using  
 the $p^*$ coordinate currently in use in the MIT gcm.  
8    
9  The gridalt package was developed to allow the high end atmospheric physics  The gridalt package was developed to allow the high end atmospheric physics
10  (fizhi) physics to be run on a separate grid from the hydrodynamics. The package  (fizhi) physics to be run on a separate grid from the hydrodynamics. The package
# Line 23  levels. This is illustrated as follows: Line 18  levels. This is illustrated as follows:
18  \begin{figure}[htbp]  \begin{figure}[htbp]
19  \vspace*{-0.4in}  \vspace*{-0.4in}
20  \begin{center}  \begin{center}
21  \includegraphics[height=2.4in]{vertical.eps}  \includegraphics[height=2.4in]{part6/vertical.eps}
22  \end{center}  \end{center}
23  \end{figure}  \end{figure}
24    
# Line 60  state variables on the $p^*$ grid on som Line 55  state variables on the $p^*$ grid on som
55  \subsection {Dos and donts}  \subsection {Dos and donts}
56    
57  In the context of a Held-Suarez type of model experiment (located  In the context of a Held-Suarez type of model experiment (located
58  in the fizhi-hs.cs-32x32x10 verification experiment) with  in the fizhi-gridalt-hs verification experiment) with
59  topography, the forcing terms which represent the physics are computed on  topography, the forcing terms which represent the physics are computed on
60  the modified grid. The forcing terms are computed as functions of the  the modified grid. The forcing terms are computed as functions of the
61  state variables on the modified grid. The tendencies are then interpolated  state variables on the modified grid. The tendencies are then interpolated
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