title:
        IGW TEST MODEL
time_stepping: NTIMES   dt[sec]  NDTFAST  NINFO
                 5    50.    60     500 
time_stepping_nbq: NDTNBQ    CSOUND_NBQ    VISC2_NBQ
                    10          1500          1.
S-coord: THETA_S,   THETA_B,    Hc (m)
           1      0      1.e3
grid:  filename
                          TEST_CASES/igw_grd.nc
forcing: filename
                          TEST_CASES/igw_frc.nc
climatology: filename
                          TEST_CASES/igw_clm.nc
initial: NRREC  filename
          0
                          igw_ini.nc
restart:          NRST, NRPFRST / filename
                   5    -1
                          igw_rst.nc
history: LDEFHIS, NWRT, NRPFHIS / filename 
            T     5      0
                          igw_his.nc
averages: NTSAVG, NAVG, NRPFAVG / filename
            1      259200     0
                          igw_avg.nc

primary_history_fields: zeta UBAR VBAR  U  V   wrtT(1:NT)
                          T    T   T   T  T    30*T
auxiliary_history_fields:   rho Omega  W  Akv  Akt  Aks  HBL HBBL Bostr Bustr Bvstr Wstr Ustr Vstr Shfl Swfl rsw rlw lat sen HEL
                             T   T     T   F    F    F    F   F    F     F    F     F    F    F    F    F    F  10*F             

primary_averages: zeta UBAR VBAR  U  V   wrtT(1:NT)
                   F    F    F    F  F   30*F
auxiliary_averages: rho Omega  W  Akv  Akt  Aks  HBL HBBL Bostr Bustr Bvstr Wstr Ustr Vstr Shfl Swfl rsw rlw lat sen HEL
                     F   T     F   F    F    F    F   F    F     F    F     F   F    F     F    F    F  10*F

rho0:
      1027.d0

lin_EOS_cff:  R0 [86kg/m3], T0 [Celsius], S0 [PSU], TCOEF [1/Celsius], SCOEF [1/PSU]
              30.            0.            0.        0.28                0.

lateral_visc:   VISC2,    VISC4    [m^2/sec for all]
                 0.1         0.

tracer_diff2: TNU2(1:NT)           [m^2/sec for all]
                30*0.d0 

tracer_diff4: TNU4(1:NT)           [m^4/sec for all]
                30*0.d11


vertical_mixing: Akv_bak, Akt_bak [m^2/sec]
                  1.d-05   1.d-05

bottom_drag:     RDRG [m/s],  RDRG2,  Zob [m],  Cdb_min, Cdb_max
                 0.      0.    1.e-3     1.e-4   1.e-1

gamma2:
                 1.d0

nudg_cof:    TauT_in, TauT_out, TauM_in, TauM_out  [days for all]
              0.1        100         0.1           100

sponge:          X_SPONGE [m],    V_SPONGE [m^2/sec]
                    20.e+3          1.