Tools (#2) - [SIREN] GRID GET GHOST: should have been an impossible case (#4) - Message List

[SIREN] GRID GET GHOST: should have been an impossible case
 solved

Dear SIREN users,

I am trying to generate open boundary conditions to my regional domain from a coarse resolution bigger domain.

I successfully create the fine coordinate and bathymetry files.

I would like to generate the boundary file by using T,S,UV and 2D netcdf files.

However SIREN stops by giving below error (a lot of these);

 ERROR   : GRID GET GHOST: should have been an impossible case

and at the end I get this last lines;

 ERROR   : IOM DOM READ VAR: there is no variable with name or standard name  lo
         : ngitude_U in processor/file coordinates_out.nc
 ERROR   : IOM DOM READ VAR: there is no variable with name or standard name  la
         : titude_U in processor/file coordinates_out.nc
 ERROR   : GRID GET COARSE INDEX: some fine grid coordinate value are not associ
         : ated.
 ERROR   : CREATE BOUNDARY: error computing coarse grid indices

I would be very appreciate any help on this.

Best Regards, Murat

  • Message #8

    Hi murat,

    to really help you, I eed more information about the files and namelists you use.

    However regarding your messsage, you should have a look on this:

    • First about the GRID GHOST ERROR. SIREN checks ghost cell, that's mean look if there are _FillValue on boundaries. This is similar to look at the NEMO periodicity of the file used. So you should check if there is an attribute _fillValue in the netcdf file, and check if the file follow NEMO periodicity "rules".
    • then for others ERROR, maybe SIREN can't read the cn_varcfg file, or there is no variable glamu, gphiu in your coordintes_out.nc file

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