Changeset 12489 for NEMO/trunk/cfgs/SHARED/namelist_ref

Timestamp:

2020-02-28T16:55:11+01:00 (4 years ago)

Author:

davestorkey

Message:

Preparation for new timestepping scheme #2390.
Main changes:

1. Initial euler timestep now handled in stp and not in TRA/DYN routines.
2. Renaming of all timestep parameters. In summary, the namelist parameter is now rn_Dt and the current timestep is rDt (and rDt_ice, rDt_trc etc).
3. Renaming of a few miscellaneous parameters, eg. atfp -> rn_atfp (namelist parameter used everywhere) and rau0 -> rho0.

This version gives bit-comparable results to the previous version of the trunk.

File:

• NEMO/trunk/cfgs/SHARED/namelist_ref (modified) (3 diffs)

NEMO/trunk/cfgs/SHARED/namelist_ref

@@ -42 +42 @@
    nn_leapy    =       0   !  Leap year calendar (1) or not (0)
    ln_rstart   = .false.   !  start from rest (F) or from a restart file (T)
-      nn_euler    =    1      !  = 0 : start with forward time step if ln_rstart=T
-      nn_rstctl   =    0      !  restart control ==> activated only if ln_rstart=T
+      ln_1st_euler = .false.  !  =T force a start with forward time step (ln_rstart=T)
+      nn_rstctl    =    0     !  restart control ==> activated only if ln_rstart=T
       !                          !    = 0 nn_date0 read in namelist ; nn_it000 : read in namelist
       !                          !    = 1 nn_date0 read in namelist ; nn_it000 : check consistancy between namelist and restart
@@ -72 +72 @@
    ln_linssh   = .false.   !  =T  linear free surface  ==>>  model level are fixed in time
    !
-   rn_rdt      = 5400.     !  time step for the dynamics and tracer
+   rn_Dt      = 5400.     !  time step for the dynamics and tracer
    rn_atfp     =    0.1    !  asselin time filter parameter
    !
@@ -995 +995 @@
       ln_bt_av      = .true.     ! Time filtering of barotropic variables
          nn_bt_flt     = 1          ! Time filter choice  = 0 None
-         !                          !                     = 1 Boxcar over   nn_baro sub-steps
-         !                          !                     = 2 Boxcar over 2*nn_baro  "    "
+         !                          !                     = 1 Boxcar over   nn_e sub-steps
+         !                          !                     = 2 Boxcar over 2*nn_e  "    "
       ln_bt_auto    = .true.     ! Number of sub-step defined from:
          rn_bt_cmax   =  0.8        ! =T : the Maximum Courant Number allowed
-         nn_baro      = 30          ! =F : the number of sub-step in rn_rdt seconds
+         nn_e      = 30          ! =F : the number of sub-step in rn_Dt seconds
       rn_bt_alpha   = 0.         ! Temporal diffusion parameter (if ln_bt_av=F)
 /