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edhill |
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\section{Pre-- and Post--Processing Scripts and Utilities} |
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There are numerous tools for pre-processing data, converting model |
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output and analysis written in Matlab, fortran (f77 and f90) and perl. |
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As yet they remain undocumented although many are self-documenting |
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(Matlab routines have "help" written into them). |
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Here we'll summarize what is available but this is an ever growing |
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resource so this may not cover everything that is out there: |
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\subsection{Utilities supplied with the model} |
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We supply some basic scripts with the model to facilitate conversion |
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or reading of data into analysis software. |
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\subsubsection{utils/scripts} |
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In the directory {\em utils/scripts} you will find {\em joinds} and |
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{\em joinmds}: these are perl scripts used from joining the multi-part |
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files created by MITgcm. {\bf Use {\em joinmds} always}. You will only |
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need {\em joinds} if you are working with output older than two years |
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(prior to c23). |
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\subsubsection{utils/matlab} |
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In the directory {\em utils/matlab} you will find several Matlab |
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scripts (.m or dot-em files). The priniciple script is {\em rdmds.m} |
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used for reading the multi-part model output files in to matlab. Place |
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the scripts in your matlab path or change the path appropriately, then |
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at the matlab prompt type: |
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\begin{verbatim} |
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>> help rdmds |
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\end{verbatim} |
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to get help on how to use rdmds. |
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Another useful script scans the terminal output file for "monitor" |
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information. |
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Most other scripts are for working in the curvilinear coordinate |
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systems which as yet are unpublished and undocumented. |
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\subsubsection{MNC Utils} |
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1.3 |
The MITgcm netCDF integration is relatively new and the tools used to |
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work on netCDF data sets are developing. The following scripts and |
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utilities have been written to help manipulate MNC (netCDF) files: |
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edhill |
1.1 |
\begin{description} |
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1.2 |
\item[Tile Assembly:] a matlab script {\tt |
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edhill |
1.1 |
utils/matlab/mnc\_assembly.m} is available for spatially |
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edhill |
1.3 |
``assembling'' MNC output. A convenience wrapper script called {\tt |
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utils/matlab/gluemnc.m} is also provided. Please use the matlab |
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help facility for more information. |
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\item[gmt:] As MITgcm evolves to handle more complicated domains and |
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topologies, a suite of matlab tools is being written to more |
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gracefully handle the model files. This suite is called ``gmt'' |
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which refers to ``generalized model topology'' pre-/post-processing. |
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Currently, this directory contains a matlab script {\tt |
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utils/matlab/gmt/rdnctiles.m} that is able to read the MNC-created |
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netCDF files for any domain. Additional scripts are being created |
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that will work with these fields on a per-tile basis. |
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1.1 |
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\end{description} |
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\subsection{Pre-processing software} |
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There is a suite of pre-processing software for intepolating |
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bathymetry and forcing data, written by Adcroft and Biastoch. At some |
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point, these will be made available for download. If you are in need |
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of such software, contact one of them. |
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