[MITgcm-support] more questions

[Martin Losch]

Rima,

if you use netcdf (that is the mnc-package), you do not need to  
convert the output files at all: they will be in netcdf format (with  
ending *.nc). However, if you use a tiled domain (e.g., when you use  
more than one CPU), you have to assemble the different tiles.  
Currently, there are only scripts in Matlab that can do that. Also  
the matlab-function rdmnc.m conveniently reads netcdf-files created  
by the mnc-package.

If you don't use the mnc-package your output will be in ieee big- 
endian files (*.data) with some meta information in ascii-files  
(*.meta). This is the default behavior. To read them, either use the  
meta information and load the *.data files into the program of your  
choice, or use the matlab scripts rdmds.m (which also calls rdmeta.m)  
to read them. E.g.
 >> addpath MITgcm/utils/matlab % that's where all matlab scripts are
 >> t=rdmds('T',Inf);
 >>pcolor(t(:,:,1)')
or
 >>s=rdmnc('state.*.nc','Temp',Inf);
 >>pcolor(s.Temp(:,:,1)')
Both plot the potential temperature of the last output.

Be aware that rdmnc/rdmds do not work properly with Matlab6 (for that  
you need to use older versions of rdmnc/rdmds, but don't ask me which).

Martin

On 2 Oct 2006, at 10:40, Riema Rachmayani wrote:

> dear all,
>
> the output of our simulation is in .data and .meta (mdsio output)  
> which could read and draw the output in matlab right?? or mnc  
> output which utilize netcdf to read and to draw the output, but we  
> have how to convert .mnc to .nc first right?? how to convert .mnc  
> to .nc??
>
> for now my output is in .data and .meta, and i've try to draw the  
> output in matlab, but it wasnt work well. To make it simple to  
> read, i've try to save .data and .meta in ascii file, but it wasnt  
> work well too, any clue??
>
> thank you..thank you...
>
> regards,
> rima