source: NEMO/branches/2019/dev_r10721_KERNEL-02_Storkey_Coward_IMMERSE_first_steps/src/OCE/C1D/step_c1d.F90 @ 10998

Last change on this file since 10998 was 10998, checked in by davestorkey, 2 years ago

2019/dev_r10721_KERNEL-02_Storkey_Coward_IMMERSE_first_steps : ICE changes. Passess non-AGRIF sette tests apart from ORCA2_SAS_ICE which doesn't seem to work for me at the moment.

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1MODULE step_c1d
2   !!======================================================================
3   !!                       ***  MODULE step_c1d  ***
4   !! Time-stepping    : manager of the ocean, tracer and ice time stepping - c1d case
5   !!======================================================================
6   !! History :   2.0  !  2004-04  (C. Ethe)  adapted from step.F90 for C1D
7   !!             3.0  !  2008-04  (G. Madec)  redo the adaptation to include SBC
8   !!----------------------------------------------------------------------
9#if defined key_c1d
10   !!----------------------------------------------------------------------
11   !!   'key_c1d'                                       1D Configuration
12   !!---------------------------------------------------------------------- 
13   !!   stp_c1d        : NEMO system time-stepping in c1d case
14   !!----------------------------------------------------------------------
15   USE step_oce        ! time stepping definition modules
16   USE step, ONLY : Nbb, Nnn, Naa, Nrhs ! time level indices
17#if defined key_top
18   USE trcstp          ! passive tracer time-stepping      (trc_stp routine)
19#endif
20   USE dyncor_c1d      ! Coriolis term (c1d case)         (dyn_cor_1d     )
21   USE dynnxt          ! time-stepping                    (dyn_nxt routine)
22   USE dyndmp          ! U & V momentum damping           (dyn_dmp routine)
23   USE restart         ! restart
24
25   IMPLICIT NONE
26   PRIVATE
27
28   PUBLIC stp_c1d      ! called by opa.F90
29
30   !!----------------------------------------------------------------------
31   !! NEMO/OCE 4.0 , NEMO Consortium (2018)
32   !! $Id$
33   !! Software governed by the CeCILL license (see ./LICENSE)
34   !!----------------------------------------------------------------------
35CONTAINS
36
37   SUBROUTINE stp_c1d( kstp )
38      !!----------------------------------------------------------------------
39      !!                     ***  ROUTINE stp_c1d  ***
40      !!                     
41      !! ** Purpose :  - Time stepping of SBC including sea ice (dynamic and thermodynamic eqs.)
42      !!               - Time stepping of OPA (momentum and active tracer eqs.)
43      !!               - Time stepping of TOP (passive tracer eqs.)
44      !!
45      !! ** Method  : -1- Update forcings and data 
46      !!              -2- Update vertical ocean physics
47      !!              -3- Compute the t and s trends
48      !!              -4- Update t and s
49      !!              -5- Compute the momentum trends
50      !!              -6- Update the horizontal velocity
51      !!              -7- Compute the diagnostics variables (rd,N2, div,cur,w)
52      !!              -8- Outputs and diagnostics
53      !!----------------------------------------------------------------------
54      INTEGER, INTENT(in) ::   kstp   ! ocean time-step index
55      !
56      INTEGER ::   jk       ! dummy loop indice
57      INTEGER ::   indic    ! error indicator if < 0
58      !! ---------------------------------------------------------------------
59
60                             indic = 0                ! reset to no error condition
61      IF( kstp == nit000 )   CALL iom_init( "nemo")   ! iom_put initialization (must be done after nemo_init for AGRIF+XIOS+OASIS)
62      IF( kstp /= nit000 )   CALL day( kstp )         ! Calendar (day was already called at nit000 in day_init)
63                             CALL iom_setkt( kstp - nit000 + 1, "nemo" )   ! say to iom that we are at time step kstp
64
65      !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
66      ! Update data, open boundaries, surface boundary condition (including sea-ice)
67      !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
68                         CALL sbc    ( kstp, Nbb, Nnn )  ! Sea Boundary Condition (including sea-ice)
69
70      !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
71      ! Ocean physics update                (ua, va, ta, sa used as workspace)
72      !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
73                         CALL eos_rab( tsb, rab_b )   ! before local thermal/haline expension ratio at T-points
74                         CALL eos_rab( tsn, rab_n )   ! now    local thermal/haline expension ratio at T-points
75                         CALL bn2( tsb, rab_b, rn2b ) ! before Brunt-Vaisala frequency
76                         CALL bn2( tsn, rab_n, rn2  ) ! now    Brunt-Vaisala frequency
77     
78      !  VERTICAL PHYSICS
79                         CALL zdf_phy( kstp )         ! vertical physics update (bfr, avt, avs, avm + MLD)
80
81      IF(.NOT.ln_linssh )   CALL ssh_nxt       ( kstp, Nbb, Nnn, ssh, Naa )  ! after ssh (includes call to div_hor)
82      IF(.NOT.ln_linssh )   CALL dom_vvl_sf_nxt( kstp, Nbb, Nnn,      Naa )  ! after vertical scale factors
83
84      IF(.NOT.ln_linssh )   CALL wzv           ( kstp, Nbb, Nnn, ww,  Naa )  ! now cross-level velocity
85      !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
86      ! diagnostics and outputs             (ua, va, ta, sa used as workspace)
87      !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
88                         CALL dia_wri( kstp, Nnn )  ! ocean model: outputs
89      IF( lk_diahth  )   CALL dia_hth( kstp, Nnn )  ! Thermocline depth (20°C)
90
91
92#if defined key_top
93      !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
94      ! Passive Tracer Model
95      !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
96                        CALL trc_stp( kstp )       ! time-stepping
97#endif
98
99      !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
100      ! Active tracers                              (ua, va used as workspace)
101      !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
102                        tsa(:,:,:,:) = 0._wp       ! set tracer trends to zero
103
104                        CALL tra_sbc( kstp )       ! surface boundary condition
105      IF( ln_traqsr )   CALL tra_qsr( kstp )       ! penetrative solar radiation qsr
106      IF( ln_tradmp )   CALL tra_dmp( kstp )       ! internal damping trends- tracers
107      IF(.NOT.ln_linssh)CALL tra_adv( kstp )       ! horizontal & vertical advection
108      IF( ln_zdfosm  )  CALL tra_osm( kstp )       ! OSMOSIS non-local tracer fluxes
109                        CALL tra_zdf( kstp )       ! vertical mixing
110                        CALL eos( tsn, rhd, rhop, gdept_0(:,:,:) )   ! now potential density for zdfmxl
111      IF( ln_zdfnpc )   CALL tra_npc( kstp )       ! applied non penetrative convective adjustment on (t,s)
112                        CALL tra_nxt( kstp )       ! tracer fields at next time step
113
114
115
116      !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
117      ! Dynamics                                    (ta, sa used as workspace)
118      !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
119                        ua(:,:,:) = 0._wp          ! set dynamics trends to zero
120                        va(:,:,:) = 0._wp
121
122      IF( ln_dyndmp )   CALL dyn_dmp    ( kstp )   ! internal damping trends- momentum
123                        CALL dyn_cor_c1d( kstp )   ! vorticity term including Coriolis
124      IF( ln_zdfosm  )  CALL dyn_osm    ( kstp )   ! OSMOSIS non-local velocity fluxes
125                        CALL dyn_zdf    ( kstp )   ! vertical diffusion
126                        CALL dyn_nxt    ( kstp )   ! lateral velocity at next time step
127      IF(.NOT.ln_linssh)CALL ssh_swp    ( kstp, Nbb, Nnn, Naa )   ! swap of sea surface height
128
129      IF(.NOT.ln_linssh)CALL dom_vvl_sf_swp( kstp, Nbb, Nnn, Naa )! swap of vertical scale factors
130
131      !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
132      ! Control and restarts
133      !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
134                             CALL stp_ctl( kstp, indic )
135      IF( kstp == nit000 )   CALL iom_close( numror )      ! close input  ocean restart file
136      IF( lrst_oce       )   CALL rst_write( kstp )        ! write output ocean restart file
137      !
138#if defined key_iomput
139      IF( kstp == nitend .OR. indic < 0 )   CALL xios_context_finalize()   ! needed for XIOS
140      !
141#endif
142   END SUBROUTINE stp_c1d
143
144#else
145   !!----------------------------------------------------------------------
146   !!   Default key                                            NO 1D Config
147   !!----------------------------------------------------------------------
148CONTAINS
149   SUBROUTINE stp_c1d ( kt )      ! dummy routine
150      IMPLICIT NONE
151      INTEGER, INTENT( in ) :: kt
152      WRITE(*,*) 'stp_c1d: You should not have seen this print! error?', kt
153   END SUBROUTINE stp_c1d
154#endif
155
156   !!======================================================================
157END MODULE step_c1d
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