The namvar sub-namelist lists variables to be used: cn_varfile defines the variable name ("Bathymetry" here) and the input file associated with. In other case, you should add it to the namelist. So if you created the fine coordinates with SIREN, you do not have to fill it. Indeed, if this variable is not inform, SIREN tries to read it in the global attributes of the file. Note in this namelist example, there is no need to set the variable in_perio1 to define the NEMO periodicity of the fine grid. In the same way, the namfin sub-namelist set parameters of the fine coordinates file. Note in all SIREN namelist: 0 referred to the coarse/wide grid.
Then the namcrs sub-namelist set parameters of the wide coordinates file. You could define sub domain with coarse grid indicesįirst as previously, we have the namlog and namcfg sub-namelist (see above for more explanation). The namnst sub-namelist defines the subdomain to be used as well as refinment factor. So you do not need to fill this sub-namelist too. The interpolation methods to be used are defined in the configuration variables file (see below). The namvar sub-namelist lists variables to be used.īy default all the variables of the wider coordinates file are used to create the new coordinates file. Note the NEMO periodicity could be choose between 0 to 6: in_perio=0 standard regional model in_perio=1 east-west cyclic model in_perio=2 model with symmetric boundary condition across the equator in_perio=3 regional model with North fold boundary and T-point pivot in_perio=4 global model with a T-point pivot.Įxample: ORCA2, ORCA025, ORCA12 in_perio=5 regional model with North fold boundary and F-point pivot in_perio=6 global model with a F-point pivotĮxample: ORCA05 See Also For more information see NEMO periodicity The namcrs sub-namelist set parameters of the wide coordinates file, as path to find it, and NEMO periodicity of the wide grid. Note You could find the generic version of those configuration files in the directory NEMOGCM/TOOLS/SIREN/cfg. The dimension configuration file defines dimensions allowed.Obviously, you could add other variables to those already list, in this file. The variable configuration file defines standard name, default interpolation method, axis.The namcfg sub-namelist defines where found SIREN configuration files. This will create a log file named create_coord.log This sub-namelist set parameters of the log file.Īll the parameters of this sub-namelist have default value, so you could let it empty, as done here. Note you could define sub domain with coarse grid indices or with coordinates.įirst we have the namlog sub-namelist. To create this new cooridnates file, you have to run : The coordinates file created could simply be an extraction, or a refinment of the wide grid. SIREN allows you to create this coordinates file from a wider coordinates file. To create your own configuration, you first have to create a coordinates file on your domain of study. Note As demonstrator for a first start a set of GLORYS files (global reanalysis on ORCA025 grid), as well as examples of namelists are available here.
Siren file renaming software how to#
Here after we briefly describe how to use each programs, and so how to create your own regional configuration.
create_coord.f90 to create regional grid coordinates.SIREN is composed of a set of 5 Fortran programs :
Siren file renaming software software#
SIREN is a software to set up regional configuration with NEMO.Īctually SIREN creates all the input files you need to run a NEMO regional configuration.