[MITgcm-support] Re: non-MDSIO input files

[Dmitri Leonov]

Hi Ed,

I'm trying to run the model on a hand-made orthogonal curvilinear grid 
with rectangular topology. The grid is already generated. All I need is 
to make the model read the grid quantities correctly. As I understand I 
don't need exch2.

I've tried both approaches from your script without luck so far: there 
are errors in both cases.
I'm assuming npx and npy in your script correspond to Nx+1 and Ny+1. Is 
that right?

I generated the 16 grid quantities in matlab with size (npx,npy) and ran 
the portion of the script that saves them in the 2 formats.
The netcdf file looks right (except the dimensions are transposed with 
respect to the ones in mnc output). But when I turn the readgrid_mnc 
option on I get a NetCDF error about index being out of bounds.
 
To use READSYMTILE_RS I had to modify ini_curvilinear_grid.F commenting 
out the following 3 lines:
#ifdef ALLOW_MDSIO
#define OLD_GRID_IO
#endif

When I did that and ran the model it complained about unexpected end of 
file.
Am I missing something?

I'm attaching my experiment so it can be reproduced (for testing 
purposes Nx=8, Ny=40, Nr=10).

I would appreciate your feedback.

Dmitri.


Ed Hill wrote:
> On Thu, 2006-08-10 at 11:22 -0700, Dmitri Leonov wrote:
>   
>> Hello Ed,
>>
>> Thanks for the info. I can turn on option 1 or 3. The only question is 
>> how to generate the input files (using matlab or otherwise).
>> Could you point me to some examples?
>>     
>
> Hi Dmitris,
>
> Attached is a MatLAB script that can generate correctly formatted files
> for the tile*.mitgrid format and the equivalent netCDF representation.  
>
> The script can do more than just write files, however.  It can also
> generate an entire grid (that is, compute the 16 basic grid quantities)
> from an array of 3D corner point locations.
>
>   

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