Implementation details

Here we show an example namasm namelist and the header of an example assimilation increments file on the ORCA2 grid.

/home/ntm/Workspace/NEMO/nemo_v3_6_STABLE/DOC/Namelists/namasm

The header of an assimilation increments file produced using the NetCDF tool ncdump -h is shown below

netcdf assim_background_increments {


dimensions:


x = 182 ;


y = 149 ;


z = 31 ;


t = UNLIMITED ; // (1 currently)


variables:


float nav_lon(y, x) ;


float nav_lat(y, x) ;


float nav_lev(z) ;


double time_counter(t) ;


double time ;


double z_inc_dateb ;


double z_inc_datef ;


double bckint(t, z, y, x) ;


double bckins(t, z, y, x) ;


double bckinu(t, z, y, x) ;


double bckinv(t, z, y, x) ;


double bckineta(t, y, x) ;



// global attributes:

                :DOMAIN_number_total = 1 ;

                :DOMAIN_number = 0 ;

                :DOMAIN_dimensions_ids = 1, 2 ;

                :DOMAIN_size_global = 182, 149 ;

                :DOMAIN_size_local = 182, 149 ;

                :DOMAIN_position_first = 1, 1 ;

                :DOMAIN_position_last = 182, 149 ;

                :DOMAIN_halo_size_start = 0, 0 ;

                :DOMAIN_halo_size_end = 0, 0 ;

                :DOMAIN_type = "BOX" ;

}