| 1 | MODULE step |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE step *** |
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| 4 | !! Time-stepping : manager of the ocean, tracer and ice time stepping |
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| 5 | !!====================================================================== |
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| 6 | !! History : OPA ! 1991-03 (G. Madec) Original code |
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| 7 | !! - ! 1991-11 (G. Madec) |
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| 8 | !! - ! 1992-06 (M. Imbard) add a first output record |
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| 9 | !! - ! 1996-04 (G. Madec) introduction of dynspg |
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| 10 | !! - ! 1996-04 (M.A. Foujols) introduction of passive tracer |
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| 11 | !! 8.0 ! 1997-06 (G. Madec) new architecture of call |
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| 12 | !! 8.2 ! 1997-06 (G. Madec, M. Imbard, G. Roullet) free surface |
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| 13 | !! - ! 1999-02 (G. Madec, N. Grima) hpg implicit |
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| 14 | !! - ! 2000-07 (J-M Molines, M. Imbard) Open Bondary Conditions |
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| 15 | !! NEMO 1.0 ! 2002-06 (G. Madec) free form, suppress macro-tasking |
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| 16 | !! - ! 2004-08 (C. Talandier) New trends organization |
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| 17 | !! - ! 2005-01 (C. Ethe) Add the KPP closure scheme |
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| 18 | !! - ! 2005-11 (G. Madec) Reorganisation of tra and dyn calls |
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| 19 | !! - ! 2006-01 (L. Debreu, C. Mazauric) Agrif implementation |
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| 20 | !! - ! 2006-07 (S. Masson) restart using iom |
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| 21 | !! 3.2 ! 2009-02 (G. Madec, R. Benshila) reintroduicing z*-coordinate |
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| 22 | !! - ! 2009-06 (S. Masson, G. Madec) TKE restart compatible with key_cpl |
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| 23 | !! 3.3 ! 2010-05 (K. Mogensen, A. Weaver, M. Martin, D. Lea) Assimilation interface |
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| 24 | !! - ! 2010-10 (C. Ethe, G. Madec) reorganisation of initialisation phase + merge TRC-TRA |
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| 25 | !! 3.4 ! 2011-04 (G. Madec, C. Ethe) Merge of dtatem and dtasal |
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| 26 | !! 3.6 ! 2012-07 (J. Simeon, G. Madec. C. Ethe) Online coarsening of outputs |
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| 27 | !! 3.6 ! 2014-04 (F. Roquet, G. Madec) New equations of state |
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| 28 | !! 3.6 ! 2014-10 (E. Clementi, P. Oddo) Add Qiao vertical mixing in case of waves |
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| 29 | !! 3.7 ! 2014-10 (G. Madec) LDF simplication |
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| 30 | !! - ! 2014-12 (G. Madec) remove KPP scheme |
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| 31 | !! - ! 2015-11 (J. Chanut) free surface simplification (remove filtered free surface) |
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| 32 | !! 4.0 ! 2017-05 (G. Madec) introduction of the vertical physics manager (zdfphy) |
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| 33 | !! 4.1 ! 2019-08 (A. Coward, D. Storkey) rewrite in preparation for new timestepping scheme |
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| 34 | !!---------------------------------------------------------------------- |
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| 35 | |
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| 36 | #if defined key_qco || defined key_linssh |
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| 37 | !!---------------------------------------------------------------------- |
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| 38 | !! 'key_qco' EMPTY MODULE Quasi-Eulerian vertical coordinate |
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| 39 | !! OR |
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| 40 | !! 'key_linssh EMPTY MODULE Fixed in time vertical coordinate |
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| 41 | !!---------------------------------------------------------------------- |
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| 42 | #else |
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| 43 | !!---------------------------------------------------------------------- |
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| 44 | !! stp : OCE system time-stepping |
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| 45 | !!---------------------------------------------------------------------- |
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| 46 | USE step_oce ! time stepping definition modules |
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| 47 | |
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| 48 | IMPLICIT NONE |
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| 49 | PRIVATE |
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| 50 | |
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| 51 | PUBLIC stp ! called by nemogcm.F90 |
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| 52 | |
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| 53 | ! !** time level indices **! |
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| 54 | INTEGER, PUBLIC :: Nbb, Nnn, Naa, Nrhs !: used by nemo_init |
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| 55 | |
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| 56 | !! * Substitutions |
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| 57 | # include "do_loop_substitute.h90" |
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| 58 | !!---------------------------------------------------------------------- |
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| 59 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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| 60 | !! $Id$ |
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| 61 | !! Software governed by the CeCILL license (see ./LICENSE) |
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| 62 | !!---------------------------------------------------------------------- |
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| 63 | CONTAINS |
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| 64 | |
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| 65 | #if defined key_agrif |
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| 66 | RECURSIVE SUBROUTINE stp( ) |
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| 67 | INTEGER :: kstp ! ocean time-step index |
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| 68 | #else |
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| 69 | SUBROUTINE stp( kstp ) |
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| 70 | INTEGER, INTENT(in) :: kstp ! ocean time-step index |
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| 71 | #endif |
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| 72 | !!---------------------------------------------------------------------- |
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| 73 | !! *** ROUTINE stp *** |
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| 74 | !! |
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| 75 | !! ** Purpose : - Time stepping of OCE (momentum and active tracer eqs.) |
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| 76 | !! - Time stepping of SI3 (dynamic and thermodynamic eqs.) |
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| 77 | !! - Time stepping of TRC (passive tracer eqs.) |
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| 78 | !! |
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| 79 | !! ** Method : -1- Update forcings and data |
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| 80 | !! -2- Update ocean physics |
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| 81 | !! -3- Compute the t and s trends |
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| 82 | !! -4- Update t and s |
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| 83 | !! -5- Compute the momentum trends |
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| 84 | !! -6- Update the horizontal velocity |
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| 85 | !! -7- Compute the diagnostics variables (rd,N2, hdiv,w) |
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| 86 | !! -8- Outputs and diagnostics |
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| 87 | !!---------------------------------------------------------------------- |
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| 88 | INTEGER :: ji, jj, jk, jtile ! dummy loop indice |
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| 89 | !! --------------------------------------------------------------------- |
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| 90 | #if defined key_agrif |
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| 91 | IF( nstop > 0 ) RETURN ! avoid to go further if an error was detected during previous time step (child grid) |
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| 92 | kstp = nit000 + Agrif_Nb_Step() |
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| 93 | Kbb_a = Nbb; Kmm_a = Nnn; Krhs_a = Nrhs ! agrif_oce module copies of time level indices |
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| 94 | IF( lk_agrif_debug ) THEN |
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| 95 | IF( Agrif_Root() .and. lwp) WRITE(*,*) '---' |
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| 96 | IF(lwp) WRITE(*,*) 'Grid Number', Agrif_Fixed(),' time step ', kstp, 'int tstep', Agrif_NbStepint() |
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| 97 | ENDIF |
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| 98 | IF( kstp == nit000 + 1 ) lk_agrif_fstep = .FALSE. |
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| 99 | # if defined key_xios |
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| 100 | IF( Agrif_Nbstepint() == 0 ) CALL iom_swap( cxios_context ) |
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| 101 | # endif |
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| 102 | #endif |
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| 103 | ! |
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| 104 | IF( ln_timing ) CALL timing_start('stp') |
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| 105 | ! |
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| 106 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 107 | ! model timestep |
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| 108 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 109 | ! |
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| 110 | IF( l_1st_euler ) THEN ! start or restart with Euler 1st time-step |
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| 111 | rDt = rn_Dt |
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| 112 | r1_Dt = 1._wp / rDt |
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| 113 | ENDIF |
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| 114 | ! |
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| 115 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 116 | ! update I/O and calendar |
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| 117 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 118 | ! |
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| 119 | IF( kstp == nit000 ) THEN ! initialize IOM context (must be done after nemo_init for AGRIF+XIOS+OASIS) |
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| 120 | CALL iom_init( cxios_context, ld_closedef=.FALSE. ) ! for model grid (including possible AGRIF zoom) |
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| 121 | IF( lk_diamlr ) CALL dia_mlr_iom_init ! with additional setup for multiple-linear-regression analysis |
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| 122 | CALL iom_init_closedef |
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| 123 | IF( ln_crs ) CALL iom_init( TRIM(cxios_context)//"_crs" ) ! for coarse grid |
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| 124 | ENDIF |
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| 125 | IF( kstp == nitrst .AND. lwxios ) THEN |
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| 126 | CALL iom_swap( cw_ocerst_cxt ) |
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| 127 | CALL iom_init_closedef( cw_ocerst_cxt ) |
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| 128 | CALL iom_setkt( kstp - nit000 + 1, cw_ocerst_cxt ) |
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| 129 | #if defined key_top |
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| 130 | CALL iom_swap( cw_toprst_cxt ) |
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| 131 | CALL iom_init_closedef( cw_toprst_cxt ) |
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| 132 | CALL iom_setkt( kstp - nit000 + 1, cw_toprst_cxt ) |
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| 133 | #endif |
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| 134 | ENDIF |
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| 135 | IF( kstp + nn_fsbc - 1 == nitrst .AND. lwxios ) THEN |
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| 136 | #if defined key_si3 |
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| 137 | CALL iom_swap( cw_icerst_cxt ) |
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| 138 | CALL iom_init_closedef( cw_icerst_cxt ) |
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| 139 | CALL iom_setkt( kstp - nit000 + 1, cw_icerst_cxt ) |
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| 140 | #endif |
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| 141 | IF( ln_abl ) THEN |
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| 142 | CALL iom_swap( cw_ablrst_cxt ) |
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| 143 | CALL iom_init_closedef( cw_ablrst_cxt ) |
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| 144 | CALL iom_setkt( kstp - nit000 + 1, cw_ablrst_cxt ) |
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| 145 | ENDIF |
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| 146 | ENDIF |
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| 147 | IF( kstp /= nit000 ) CALL day( kstp ) ! Calendar (day was already called at nit000 in day_init) |
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| 148 | CALL iom_setkt( kstp - nit000 + 1, cxios_context ) ! tell IOM we are at time step kstp |
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| 149 | IF( ln_crs ) CALL iom_setkt( kstp - nit000 + 1, TRIM(cxios_context)//"_crs" ) ! tell IOM we are at time step kstp |
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| 150 | |
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| 151 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 152 | ! Update external forcing (tides, open boundaries, ice shelf interaction and surface boundary condition (including sea-ice) |
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| 153 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 154 | IF( ln_tide ) CALL tide_update( kstp ) ! update tide potential |
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| 155 | IF( ln_apr_dyn ) CALL sbc_apr ( kstp ) ! atmospheric pressure (NB: call before bdy_dta which needs ssh_ib) |
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| 156 | IF( ln_bdy ) CALL bdy_dta ( kstp, Nnn ) ! update dynamic & tracer data at open boundaries |
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| 157 | IF( ln_isf ) CALL isf_stp ( kstp, Nnn ) |
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| 158 | CALL sbc ( kstp, Nbb, Nnn ) ! Sea Boundary Condition (including sea-ice) |
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| 159 | |
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| 160 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 161 | ! Update stochastic parameters and random T/S fluctuations |
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| 162 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 163 | IF( ln_sto_eos ) CALL sto_par( kstp ) ! Stochastic parameters |
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| 164 | IF( ln_sto_eos ) CALL sto_pts( ts(:,:,:,:,Nnn) ) ! Random T/S fluctuations |
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| 165 | |
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| 166 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 167 | ! Ocean physics update |
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| 168 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 169 | ! THERMODYNAMICS |
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| 170 | CALL eos_rab( ts(:,:,:,:,Nbb), rab_b, Nnn ) ! before local thermal/haline expension ratio at T-points |
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| 171 | CALL eos_rab( ts(:,:,:,:,Nnn), rab_n, Nnn ) ! now local thermal/haline expension ratio at T-points |
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| 172 | CALL bn2 ( ts(:,:,:,:,Nbb), rab_b, rn2b, Nnn ) ! before Brunt-Vaisala frequency |
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| 173 | CALL bn2 ( ts(:,:,:,:,Nnn), rab_n, rn2, Nnn ) ! now Brunt-Vaisala frequency |
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| 174 | |
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| 175 | ! VERTICAL PHYSICS |
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| 176 | ! lbc_lnk needed for zdf_sh2 when using nn_hls = 2, moved here to allow tiling in zdf_phy |
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| 177 | IF( nn_hls == 2 .AND. l_zdfsh2 ) CALL lbc_lnk( 'stp', avm_k, 'W', 1.0_wp ) |
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| 178 | |
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| 179 | IF( ln_tile ) CALL dom_tile_start ! [tiling] ZDF tiling loop |
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| 180 | DO jtile = 1, nijtile |
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| 181 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 182 | |
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| 183 | CALL zdf_phy( kstp, Nbb, Nnn, Nrhs ) ! vertical physics update (top/bot drag, avt, avs, avm + MLD) |
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| 184 | END DO |
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| 185 | IF( ln_tile ) CALL dom_tile_stop |
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| 186 | |
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| 187 | ! LATERAL PHYSICS |
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| 188 | ! |
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| 189 | IF( ln_zps .OR. l_ldfslp ) CALL eos( ts(:,:,:,:,Nbb), rhd, gdept_0(:,:,:) ) ! before in situ density |
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| 190 | |
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| 191 | IF( ln_zps .AND. .NOT. ln_isfcav) & |
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| 192 | & CALL zps_hde ( kstp, Nnn, jpts, ts(:,:,:,:,Nbb), gtsu, gtsv, & ! Partial steps: before horizontal gradient |
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| 193 | & rhd, gru , grv ) ! of t, s, rd at the last ocean level |
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| 194 | |
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| 195 | IF( ln_zps .AND. ln_isfcav) & |
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| 196 | & CALL zps_hde_isf( kstp, Nnn, jpts, ts(:,:,:,:,Nbb), gtsu, gtsv, gtui, gtvi, & ! Partial steps for top cell (ISF) |
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| 197 | & rhd, gru , grv , grui, grvi ) ! of t, s, rd at the first ocean level |
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| 198 | |
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| 199 | IF( l_ldfslp ) THEN ! slope of lateral mixing |
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| 200 | IF( ln_traldf_triad ) THEN |
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| 201 | CALL ldf_slp_triad( kstp, Nbb, Nnn ) ! before slope for triad operator |
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| 202 | ELSE |
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| 203 | CALL ldf_slp ( kstp, rhd, rn2b, Nbb, Nnn ) ! before slope for standard operator |
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| 204 | ENDIF |
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| 205 | ENDIF |
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| 206 | ! ! eddy diffusivity coeff. |
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| 207 | IF( l_ldftra_time .OR. l_ldfeiv_time ) CALL ldf_tra( kstp, Nbb, Nnn ) ! and/or eiv coeff. |
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| 208 | IF( l_ldfdyn_time ) CALL ldf_dyn( kstp, Nbb ) ! eddy viscosity coeff. |
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| 209 | |
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| 210 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 211 | ! Ocean dynamics : hdiv, ssh, e3, u, v, w |
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| 212 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 213 | |
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| 214 | CALL ssh_nxt ( kstp, Nbb, Nnn, ssh, Naa ) ! after ssh (includes call to div_hor) |
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| 215 | IF( .NOT.ln_linssh ) & |
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| 216 | & CALL dom_vvl_sf_nxt( kstp, Nbb, Nnn, Naa ) ! after vertical scale factors |
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| 217 | CALL wzv ( kstp, Nbb, Nnn, Naa, ww ) ! now cross-level velocity |
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| 218 | IF( ln_zad_Aimp ) CALL wAimp ( kstp, Nnn ) ! Adaptive-implicit vertical advection partitioning |
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| 219 | CALL eos ( ts(:,:,:,:,Nnn), rhd, rhop, gdept(:,:,:,Nnn) ) ! now in situ density for hpg computation |
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| 220 | |
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| 221 | |
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| 222 | uu(:,:,:,Nrhs) = 0._wp ! set dynamics trends to zero |
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| 223 | vv(:,:,:,Nrhs) = 0._wp |
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| 224 | |
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| 225 | IF( ln_tile ) CALL dom_tile_start ! [tiling] DYN tiling loop (1) |
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| 226 | DO jtile = 1, nijtile |
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| 227 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 228 | |
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| 229 | IF( lk_asminc .AND. ln_asmiau .AND. ln_dyninc ) & |
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| 230 | & CALL dyn_asm_inc ( kstp, Nbb, Nnn, uu, vv, Nrhs ) ! apply dynamics assimilation increment |
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| 231 | IF( ln_bkgwri ) CALL asm_bkg_wri( kstp, Nnn ) ! output background fields |
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| 232 | IF( ln_bdy ) CALL bdy_dyn3d_dmp ( kstp, Nbb, uu, vv, Nrhs ) ! bdy damping trends |
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| 233 | #if defined key_agrif |
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| 234 | END DO |
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| 235 | IF( ln_tile ) CALL dom_tile_stop |
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| 236 | |
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| 237 | IF(.NOT. Agrif_Root()) & |
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| 238 | & CALL Agrif_Sponge_dyn ! momentum sponge |
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| 239 | |
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| 240 | IF( ln_tile ) CALL dom_tile_start ! [tiling] DYN tiling loop (1, continued) |
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| 241 | DO jtile = 1, nijtile |
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| 242 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 243 | #endif |
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| 244 | CALL dyn_adv( kstp, Nbb, Nnn , uu, vv, Nrhs ) ! advection (VF or FF) ==> RHS |
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| 245 | CALL dyn_vor( kstp, Nnn , uu, vv, Nrhs ) ! vorticity ==> RHS |
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| 246 | CALL dyn_ldf( kstp, Nbb, Nnn , uu, vv, Nrhs ) ! lateral mixing |
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| 247 | IF( ln_zdfosm ) CALL dyn_osm( kstp, Nnn , uu, vv, Nrhs ) ! OSMOSIS non-local velocity fluxes ==> RHS |
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| 248 | CALL dyn_hpg( kstp, Nnn , uu, vv, Nrhs ) ! horizontal gradient of Hydrostatic pressure |
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| 249 | END DO |
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| 250 | IF( ln_tile ) CALL dom_tile_stop |
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| 251 | |
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| 252 | CALL dyn_spg( kstp, Nbb, Nnn, Nrhs, uu, vv, ssh, uu_b, vv_b, Naa ) ! surface pressure gradient |
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| 253 | |
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| 254 | ! With split-explicit free surface, since now transports have been updated and ssh(:,:,Nrhs) as well |
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| 255 | IF( ln_dynspg_ts ) THEN ! vertical scale factors and vertical velocity need to be updated |
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| 256 | IF( ln_tile ) CALL dom_tile_start ! [tiling] DYN tiling loop (2- div_hor only) |
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| 257 | DO jtile = 1, nijtile |
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| 258 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 259 | |
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| 260 | CALL div_hor ( kstp, Nbb, Nnn ) ! Horizontal divergence (2nd call in time-split case) |
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| 261 | END DO |
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| 262 | IF( ln_tile ) CALL dom_tile_stop |
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| 263 | |
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| 264 | IF(.NOT. ln_linssh) CALL dom_vvl_sf_nxt( kstp, Nbb, Nnn, Naa, kcall=2 ) ! after vertical scale factors (update depth average component) |
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| 265 | ENDIF |
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| 266 | |
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| 267 | IF( ln_tile ) CALL dom_tile_start ! [tiling] DYN tiling loop (3- dyn_zdf only) |
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| 268 | DO jtile = 1, nijtile |
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| 269 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 270 | |
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| 271 | CALL dyn_zdf ( kstp, Nbb, Nnn, Nrhs, uu, vv, Naa ) ! vertical diffusion |
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| 272 | END DO |
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| 273 | IF( ln_tile ) CALL dom_tile_stop |
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| 274 | |
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| 275 | IF( ln_dynspg_ts ) THEN ! vertical scale factors and vertical velocity need to be updated |
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| 276 | CALL wzv ( kstp, Nbb, Nnn, Naa, ww ) ! Nnn cross-level velocity |
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| 277 | IF( ln_zad_Aimp ) CALL wAimp ( kstp, Nnn ) ! Adaptive-implicit vertical advection partitioning |
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| 278 | ENDIF |
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| 279 | |
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| 280 | |
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| 281 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 282 | ! cool skin |
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| 283 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 284 | IF ( ln_diurnal ) CALL diurnal_layers( kstp ) |
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| 285 | |
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| 286 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 287 | ! diagnostics and outputs |
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| 288 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 289 | IF( ln_floats ) CALL flo_stp ( kstp, Nbb, Nnn ) ! drifting Floats |
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| 290 | IF( ln_diacfl ) CALL dia_cfl ( kstp, Nnn ) ! Courant number diagnostics |
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| 291 | CALL dia_hth ( kstp, Nnn ) ! Thermocline depth (20 degres isotherm depth) |
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| 292 | IF( ln_diadct ) CALL dia_dct ( kstp, Nnn ) ! Transports |
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| 293 | CALL dia_ar5 ( kstp, Nnn ) ! ar5 diag |
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| 294 | CALL dia_ptr ( kstp, Nnn ) ! Poleward adv/ldf TRansports diagnostics |
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| 295 | CALL dia_wri ( kstp, Nnn ) ! ocean model: outputs |
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| 296 | IF( ln_crs ) CALL crs_fld ( kstp, Nnn ) ! ocean model: online field coarsening & output |
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| 297 | IF( lk_diadetide ) CALL dia_detide( kstp ) ! Weights computation for daily detiding of model diagnostics |
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| 298 | IF( lk_diamlr ) CALL dia_mlr ! Update time used in multiple-linear-regression analysis |
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| 299 | |
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| 300 | #if defined key_top |
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| 301 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 302 | ! Passive Tracer Model |
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| 303 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 304 | CALL trc_stp ( kstp, Nbb, Nnn, Nrhs, Naa ) ! time-stepping |
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| 305 | #endif |
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| 306 | |
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| 307 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 308 | ! Active tracers |
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| 309 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 310 | ts(:,:,:,:,Nrhs) = 0._wp ! set tracer trends to zero |
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| 311 | |
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| 312 | IF( ln_tile ) CALL dom_tile_start ! [tiling] TRA tiling loop (1) |
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| 313 | DO jtile = 1, nijtile |
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| 314 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 315 | |
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| 316 | IF( lk_asminc .AND. ln_asmiau .AND. & |
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| 317 | & ln_trainc ) CALL tra_asm_inc( kstp, Nbb, Nnn, ts, Nrhs ) ! apply tracer assimilation increment |
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| 318 | CALL tra_sbc ( kstp, Nnn, ts, Nrhs ) ! surface boundary condition |
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| 319 | IF( ln_traqsr ) CALL tra_qsr ( kstp, Nnn, ts, Nrhs ) ! penetrative solar radiation qsr |
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| 320 | IF( ln_isf ) CALL tra_isf ( kstp, Nnn, ts, Nrhs ) ! ice shelf heat flux |
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| 321 | IF( ln_trabbc ) CALL tra_bbc ( kstp, Nnn, ts, Nrhs ) ! bottom heat flux |
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| 322 | IF( ln_trabbl ) CALL tra_bbl ( kstp, Nbb, Nnn, ts, Nrhs ) ! advective (and/or diffusive) bottom boundary layer scheme |
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| 323 | IF( ln_tradmp ) CALL tra_dmp ( kstp, Nbb, Nnn, ts, Nrhs ) ! internal damping trends |
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| 324 | IF( ln_bdy ) CALL bdy_tra_dmp( kstp, Nbb, ts, Nrhs ) ! bdy damping trends |
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| 325 | END DO |
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| 326 | IF( ln_tile ) CALL dom_tile_stop |
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| 327 | |
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| 328 | #if defined key_agrif |
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| 329 | IF(.NOT. Agrif_Root() ) THEN |
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| 330 | CALL Agrif_Sponge_tra ! tracers sponge |
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| 331 | ENDIF |
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| 332 | #endif |
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| 333 | |
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| 334 | ! TEMP: [tiling] Separate loop over tile domains (due to tra_adv workarounds for tiling) |
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| 335 | IF( ln_tile ) CALL dom_tile_start ! [tiling] TRA tiling loop (2) |
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| 336 | DO jtile = 1, nijtile |
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| 337 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 338 | |
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| 339 | CALL tra_adv ( kstp, Nbb, Nnn, ts, Nrhs ) ! hor. + vert. advection ==> RHS |
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| 340 | IF( ln_zdfmfc ) CALL tra_mfc ( kstp, Nbb, ts, Nrhs ) ! Mass Flux Convection |
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| 341 | IF( ln_zdfosm ) THEN |
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| 342 | CALL tra_osm ( kstp, Nnn, ts, Nrhs ) ! OSMOSIS non-local tracer fluxes ==> RHS |
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| 343 | IF( lrst_oce ) CALL osm_rst ( kstp, Nnn, 'WRITE' ) ! write OSMOSIS outputs + ww (so must do here) to restarts |
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| 344 | ENDIF |
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| 345 | CALL tra_ldf ( kstp, Nbb, Nnn, ts, Nrhs ) ! lateral mixing |
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| 346 | |
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| 347 | CALL tra_zdf ( kstp, Nbb, Nnn, Nrhs, ts, Naa ) ! vertical mixing and after tracer fields |
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| 348 | IF( ln_zdfnpc ) CALL tra_npc ( kstp, Nnn, Nrhs, ts, Naa ) ! update after fields by non-penetrative convection |
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| 349 | END DO |
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| 350 | IF( ln_tile ) CALL dom_tile_stop |
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| 351 | |
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| 352 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 353 | ! Set boundary conditions, time filter and swap time levels |
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| 354 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 355 | !!jc1: For agrif, it would be much better to finalize tracers/momentum here (e.g. bdy conditions) and move the swap |
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| 356 | !! (and time filtering) after Agrif update. Then restart would be done after and would contain updated fields. |
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| 357 | !! If so: |
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| 358 | !! (i) no need to call agrif update at initialization time |
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| 359 | !! (ii) no need to update "before" fields |
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| 360 | !! |
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| 361 | !! Apart from creating new tra_swp/dyn_swp routines, this however: |
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| 362 | !! (i) makes boundary conditions at initialization time computed from updated fields which is not the case between |
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| 363 | !! two restarts => restartability issue. One can circumvent this, maybe, by assuming "interface separation", |
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| 364 | !! e.g. a shift of the feedback interface inside child domain. |
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| 365 | !! (ii) requires that all restart outputs of updated variables by agrif (e.g. passive tracers/tke/barotropic arrays) are done at the same |
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| 366 | !! place. |
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| 367 | !! |
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| 368 | !!jc2: dynnxt must be the latest call. e3t(:,:,:,Nbb) are indeed updated in that routine |
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| 369 | CALL tra_atf ( kstp, Nbb, Nnn, Naa, ts ) ! time filtering of "now" tracer arrays |
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| 370 | CALL dyn_atf ( kstp, Nbb, Nnn, Naa, uu, vv, e3t, e3u, e3v ) ! time filtering of "now" velocities and scale factors |
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| 371 | CALL ssh_atf ( kstp, Nbb, Nnn, Naa, ssh ) ! time filtering of "now" sea surface height |
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| 372 | ! |
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| 373 | ! Swap time levels |
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| 374 | Nrhs = Nbb |
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| 375 | Nbb = Nnn |
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| 376 | Nnn = Naa |
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| 377 | Naa = Nrhs |
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| 378 | ! |
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| 379 | IF(.NOT.ln_linssh) CALL dom_vvl_sf_update( kstp, Nbb, Nnn, Naa ) ! recompute vertical scale factors |
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| 380 | ! |
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| 381 | IF( ln_diahsb ) CALL dia_hsb ( kstp, Nbb, Nnn ) ! - ML - global conservation diagnostics |
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| 382 | |
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| 383 | !!gm : This does not only concern the dynamics ==>>> add a new title |
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| 384 | !!gm2: why ouput restart before AGRIF update? |
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| 385 | !! |
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| 386 | !!jc: That would be better, but see comment above |
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| 387 | !! |
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| 388 | IF( lrst_oce ) CALL rst_write ( kstp, Nbb, Nnn ) ! write output ocean restart file |
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| 389 | IF( ln_sto_eos ) CALL sto_rst_write( kstp ) ! write restart file for stochastic parameters |
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| 390 | |
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| 391 | #if defined key_agrif |
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| 392 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 393 | ! AGRIF recursive integration |
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| 394 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 395 | Kbb_a = Nbb; Kmm_a = Nnn; Krhs_a = Nrhs ! agrif_oce module copies of time level indices |
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| 396 | CALL Agrif_Integrate_ChildGrids( stp ) ! allows to finish all the Child Grids before updating |
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| 397 | |
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| 398 | #endif |
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| 399 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 400 | ! Control |
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| 401 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 402 | CALL stp_ctl ( kstp, Nnn ) |
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| 403 | |
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| 404 | #if defined key_agrif |
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| 405 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 406 | ! AGRIF update |
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| 407 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 408 | IF( Agrif_NbStepint() == 0 .AND. nstop == 0 ) & |
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| 409 | & CALL Agrif_update_all( ) ! Update all components |
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| 410 | |
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| 411 | #endif |
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| 412 | IF( ln_diaobs .AND. nstop == 0 ) & |
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| 413 | & CALL dia_obs( kstp, Nnn ) ! obs-minus-model (assimilation) diags (after dynamics update) |
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| 414 | |
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| 415 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 416 | ! File manipulation at the end of the first time step |
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| 417 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 418 | IF( kstp == nit000 ) THEN ! 1st time step only |
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| 419 | CALL iom_close( numror ) ! close input ocean restart file |
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| 420 | IF( lrxios ) CALL iom_context_finalize( cr_ocerst_cxt ) |
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| 421 | IF(lwm) CALL FLUSH ( numond ) ! flush output namelist oce |
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| 422 | IF(lwm .AND. numoni /= -1 ) CALL FLUSH ( numoni ) ! flush output namelist ice (if exist) |
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| 423 | ENDIF |
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| 424 | |
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| 425 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 426 | ! Coupled mode |
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| 427 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 428 | IF( lk_oasis .AND. nstop == 0 ) CALL sbc_cpl_snd( kstp, Nbb, Nnn ) ! coupled mode : field exchanges |
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| 429 | ! |
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| 430 | #if defined key_xios |
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| 431 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 432 | ! Finalize contextes if end of simulation or error detected |
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| 433 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 434 | IF( kstp == nitend .OR. nstop > 0 ) THEN |
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| 435 | CALL iom_context_finalize( cxios_context ) ! needed for XIOS+AGRIF |
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| 436 | IF( ln_crs ) CALL iom_context_finalize( trim(cxios_context)//"_crs" ) ! |
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| 437 | ENDIF |
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| 438 | #endif |
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| 439 | ! |
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| 440 | IF( l_1st_euler ) THEN ! recover Leap-frog timestep |
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| 441 | rDt = 2._wp * rn_Dt |
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| 442 | r1_Dt = 1._wp / rDt |
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| 443 | l_1st_euler = .FALSE. |
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| 444 | ENDIF |
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| 445 | ! |
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| 446 | IF( ln_timing ) CALL timing_stop('stp') |
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| 447 | ! |
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| 448 | END SUBROUTINE stp |
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| 449 | ! |
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| 450 | #endif |
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| 451 | !!====================================================================== |
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| 452 | END MODULE step |
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