Hello,

Maybe I'm having no luck today, it seems that I do something wrong at every step.

Now that create_bathymetry.exe accepts the non-periodicity of my bathymetry data file, it could create the child bathymetry file. After that, I replaced the input bathymetry file with this one: cn_varfile='Bathymetry:gebco.nc'

gebco.nc is a subset of the 1/2-minute Gebco bathymetry, I took an area including, but larger than, my child model. I used exactly the same netcdf variables as the NEMO bathymetry that I used previously for cn_varfile:

netcdf gebco {
dimensions:  x = 2501 ; y = 1501 ;
variables: double nav_lon(y, x) ;   double nav_lat(y, x) ;  double Bathymetry(y, x) ;
}

With this new bathymetry file, there is a new fatal error:

FATAL   : GRID CHECK COINCIDENCE: no coincidence between fine and coarse grid:
  : invalid refinement factor

Should the bathymetry grid correspond to the parent model grid ? Or can I use just any bathymetry as long as I give nav_lon, nav_lat and Bathymetry ?

The parent model has a certain resolution, the child model ratio is 5, but the gebco bathymetry is yet another resolution.

I ask this, because there probably is no error of refinement ratio between the parent and child grids (I did not modify their coordinates, I just changed the bathymetry data file).

Thanks,

Luc