| 1 | MODULE stpmlf |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE stpMLF *** |
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| 4 | !! Time-stepping : manager of the ocean, tracer and ice time stepping |
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| 5 | !! using Modified Leap Frog for OCE |
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| 6 | !!====================================================================== |
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| 7 | !! History : OPA ! 1991-03 (G. Madec) Original code |
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| 8 | !! - ! 1991-11 (G. Madec) |
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| 9 | !! - ! 1992-06 (M. Imbard) add a first output record |
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| 10 | !! - ! 1996-04 (G. Madec) introduction of dynspg |
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| 11 | !! - ! 1996-04 (M.A. Foujols) introduction of passive tracer |
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| 12 | !! 8.0 ! 1997-06 (G. Madec) new architecture of call |
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| 13 | !! 8.2 ! 1997-06 (G. Madec, M. Imbard, G. Roullet) free surface |
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| 14 | !! - ! 1999-02 (G. Madec, N. Grima) hpg implicit |
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| 15 | !! - ! 2000-07 (J-M Molines, M. Imbard) Open Bondary Conditions |
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| 16 | !! NEMO 1.0 ! 2002-06 (G. Madec) free form, suppress macro-tasking |
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| 17 | !! - ! 2004-08 (C. Talandier) New trends organization |
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| 18 | !! - ! 2005-01 (C. Ethe) Add the KPP closure scheme |
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| 19 | !! - ! 2005-11 (G. Madec) Reorganisation of tra and dyn calls |
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| 20 | !! - ! 2006-01 (L. Debreu, C. Mazauric) Agrif implementation |
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| 21 | !! - ! 2006-07 (S. Masson) restart using iom |
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| 22 | !! 3.2 ! 2009-02 (G. Madec, R. Benshila) reintroduicing z*-coordinate |
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| 23 | !! - ! 2009-06 (S. Masson, G. Madec) TKE restart compatible with key_cpl |
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| 24 | !! 3.3 ! 2010-05 (K. Mogensen, A. Weaver, M. Martin, D. Lea) Assimilation interface |
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| 25 | !! - ! 2010-10 (C. Ethe, G. Madec) reorganisation of initialisation phase + merge TRC-TRA |
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| 26 | !! 3.4 ! 2011-04 (G. Madec, C. Ethe) Merge of dtatem and dtasal |
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| 27 | !! 3.6 ! 2012-07 (J. Simeon, G. Madec. C. Ethe) Online coarsening of outputs |
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| 28 | !! 3.6 ! 2014-04 (F. Roquet, G. Madec) New equations of state |
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| 29 | !! 3.6 ! 2014-10 (E. Clementi, P. Oddo) Add Qiao vertical mixing in case of waves |
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| 30 | !! 3.7 ! 2014-10 (G. Madec) LDF simplication |
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| 31 | !! - ! 2014-12 (G. Madec) remove KPP scheme |
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| 32 | !! - ! 2015-11 (J. Chanut) free surface simplification (remove filtered free surface) |
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| 33 | !! 4.0 ! 2017-05 (G. Madec) introduction of the vertical physics manager (zdfphy) |
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| 34 | !! 4.1 ! 2019-08 (A. Coward, D. Storkey) rewrite in preparation for new timestepping scheme |
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| 35 | !! 4.x ! 2020-08 (S. Techene, G. Madec) quasi eulerian coordinate time stepping |
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| 36 | !!---------------------------------------------------------------------- |
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| 37 | #if defined key_qco || defined key_linssh |
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| 38 | !!---------------------------------------------------------------------- |
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| 39 | !! 'key_qco' Quasi-Eulerian vertical coordinate |
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| 40 | !! OR |
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| 41 | !! 'key_linssh Fixed in time vertical coordinate |
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| 42 | !!---------------------------------------------------------------------- |
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| 43 | !! |
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| 44 | !!---------------------------------------------------------------------- |
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| 45 | !! stp_MLF : NEMO modified Leap Frog time-stepping with qco or linssh |
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| 46 | !!---------------------------------------------------------------------- |
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| 47 | USE step_oce ! time stepping definition modules |
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| 48 | ! |
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| 49 | USE domqco ! quasi-eulerian coordinate |
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| 50 | USE traatf_qco ! time filtering (tra_atf_qco routine) |
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| 51 | USE dynatf_qco ! time filtering (dyn_atf_qco routine) |
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| 52 | |
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| 53 | IMPLICIT NONE |
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| 54 | PRIVATE |
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| 55 | |
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| 56 | PUBLIC stp_MLF ! called by nemogcm.F90 |
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| 57 | |
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| 58 | ! !** time level indices **! |
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| 59 | INTEGER, PUBLIC :: Nbb, Nnn, Naa, Nrhs !: used by nemo_init |
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| 60 | |
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| 61 | !! * Substitutions |
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| 62 | # include "do_loop_substitute.h90" |
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| 63 | # include "domzgr_substitute.h90" |
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| 64 | # include "do_loop_substitute.h90" |
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| 65 | !!---------------------------------------------------------------------- |
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| 66 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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| 67 | !! $Id: step.F90 12377 2020-02-12 14:39:06Z acc $ |
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| 68 | !! Software governed by the CeCILL license (see ./LICENSE) |
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| 69 | !!---------------------------------------------------------------------- |
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| 70 | CONTAINS |
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| 71 | |
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| 72 | #if defined key_agrif |
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| 73 | RECURSIVE SUBROUTINE stp_MLF( ) |
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| 74 | INTEGER :: kstp ! ocean time-step index |
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| 75 | #else |
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| 76 | SUBROUTINE stp_MLF( kstp ) |
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| 77 | INTEGER, INTENT(in) :: kstp ! ocean time-step index |
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| 78 | #endif |
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| 79 | !!---------------------------------------------------------------------- |
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| 80 | !! *** ROUTINE stp_MLF *** |
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| 81 | !! |
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| 82 | !! ** Purpose : - Time stepping of OCE (momentum and active tracer eqs.) |
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| 83 | !! - Time stepping of SI3 (dynamic and thermodynamic eqs.) |
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| 84 | !! - Time stepping of TRC (passive tracer eqs.) |
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| 85 | !! |
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| 86 | !! ** Method : -1- Update forcings and data |
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| 87 | !! -2- Update ocean physics |
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| 88 | !! -3- Compute the t and s trends |
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| 89 | !! -4- Update t and s |
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| 90 | !! -5- Compute the momentum trends |
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| 91 | !! -6- Update the horizontal velocity |
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| 92 | !! -7- Compute the diagnostics variables (rd,N2, hdiv,w) |
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| 93 | !! -8- Outputs and diagnostics |
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| 94 | !!---------------------------------------------------------------------- |
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| 95 | INTEGER :: ji, jj, jk, jtile ! dummy loop indice |
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| 96 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: zgdept |
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| 97 | !! --------------------------------------------------------------------- |
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| 98 | #if defined key_agrif |
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| 99 | IF( nstop > 0 ) RETURN ! avoid to go further if an error was detected during previous time step (child grid) |
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| 100 | kstp = nit000 + Agrif_Nb_Step() |
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| 101 | Kbb_a = Nbb; Kmm_a = Nnn; Krhs_a = Nrhs ! agrif_oce module copies of time level indices |
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| 102 | IF( lk_agrif_debug ) THEN |
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| 103 | IF( Agrif_Root() .and. lwp) WRITE(*,*) '---' |
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| 104 | IF(lwp) WRITE(*,*) 'Grid Number', Agrif_Fixed(),' time step ', kstp, 'int tstep', Agrif_NbStepint() |
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| 105 | ENDIF |
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| 106 | IF( kstp == nit000 + 1 ) lk_agrif_fstep = .FALSE. |
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| 107 | # if defined key_xios |
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| 108 | IF( Agrif_Nbstepint() == 0 ) CALL iom_swap( cxios_context ) |
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| 109 | # endif |
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| 110 | #endif |
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| 111 | ! |
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| 112 | IF( ln_timing ) CALL timing_start('stp_MLF') |
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| 113 | ! |
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| 114 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 115 | ! model timestep |
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| 116 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 117 | ! |
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| 118 | IF( l_1st_euler ) THEN ! start or restart with Euler 1st time-step |
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| 119 | rDt = rn_Dt |
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| 120 | r1_Dt = 1._wp / rDt |
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| 121 | ENDIF |
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| 122 | ! |
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| 123 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 124 | ! update I/O and calendar |
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| 125 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 126 | ! |
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| 127 | IF( kstp == nit000 ) THEN ! initialize IOM context (must be done after nemo_init for AGRIF+XIOS+OASIS) |
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| 128 | CALL iom_init( cxios_context, ld_closedef=.FALSE. ) ! for model grid (including possible AGRIF zoom) |
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| 129 | IF( lk_diamlr ) CALL dia_mlr_iom_init ! with additional setup for multiple-linear-regression analysis |
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| 130 | CALL iom_init_closedef |
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| 131 | IF( ln_crs ) CALL iom_init( TRIM(cxios_context)//"_crs" ) ! for coarse grid |
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| 132 | ENDIF |
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| 133 | IF( kstp == nitrst .AND. lwxios ) THEN |
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| 134 | CALL iom_swap( cw_ocerst_cxt ) |
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| 135 | CALL iom_init_closedef( cw_ocerst_cxt ) |
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| 136 | CALL iom_setkt( kstp - nit000 + 1, cw_ocerst_cxt ) |
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| 137 | #if defined key_top |
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| 138 | CALL iom_swap( cw_toprst_cxt ) |
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| 139 | CALL iom_init_closedef( cw_toprst_cxt ) |
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| 140 | CALL iom_setkt( kstp - nit000 + 1, cw_toprst_cxt ) |
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| 141 | #endif |
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| 142 | ENDIF |
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| 143 | #if defined key_si3 |
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| 144 | IF( kstp + nn_fsbc - 1 == nitrst .AND. lwxios ) THEN |
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| 145 | CALL iom_swap( cw_icerst_cxt ) |
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| 146 | CALL iom_init_closedef( cw_icerst_cxt ) |
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| 147 | CALL iom_setkt( kstp - nit000 + 1, cw_icerst_cxt ) |
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| 148 | ENDIF |
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| 149 | #endif |
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| 150 | IF( kstp /= nit000 ) CALL day( kstp ) ! Calendar (day was already called at nit000 in day_init) |
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| 151 | CALL iom_setkt( kstp - nit000 + 1, cxios_context ) ! tell IOM we are at time step kstp |
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| 152 | 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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| 153 | |
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| 154 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 155 | ! Update external forcing (tides, open boundaries, ice shelf interaction and surface boundary condition (including sea-ice) |
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| 156 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 157 | IF( ln_tide ) CALL tide_update( kstp ) ! update tide potential |
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| 158 | IF( ln_apr_dyn ) CALL sbc_apr ( kstp ) ! atmospheric pressure (NB: call before bdy_dta which needs ssh_ib) |
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| 159 | IF( ln_bdy ) CALL bdy_dta ( kstp, Nnn ) ! update dynamic & tracer data at open boundaries |
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| 160 | IF( ln_isf ) CALL isf_stp ( kstp, Nnn ) |
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| 161 | CALL sbc ( kstp, Nbb, Nnn ) ! Sea Boundary Condition (including sea-ice) |
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| 162 | |
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| 163 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 164 | ! Update stochastic parameters and random T/S fluctuations |
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| 165 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 166 | IF( ln_sto_eos ) CALL sto_par( kstp ) ! Stochastic parameters |
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| 167 | IF( ln_sto_eos ) CALL sto_pts( ts(:,:,:,:,Nnn) ) ! Random T/S fluctuations |
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| 168 | |
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| 169 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 170 | ! Ocean physics update |
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| 171 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 172 | ! THERMODYNAMICS |
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| 173 | ! [ comm_cleanup ] ! lbc_lnk for AMM12 with blp / triad & for atf_qco with ln_iceberg .true. |
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| 174 | IF( nn_hls.eq.2) CALL lbc_lnk( 'stp_MLF', ts(:,:,:,:,Nbb), 'T', 1._wp) |
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| 175 | CALL eos_rab( ts(:,:,:,:,Nbb), rab_b, Nnn ) ! before local thermal/haline expension ratio at T-points |
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| 176 | CALL eos_rab( ts(:,:,:,:,Nnn), rab_n, Nnn ) ! now local thermal/haline expension ratio at T-points |
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| 177 | CALL bn2 ( ts(:,:,:,:,Nbb), rab_b, rn2b, Nnn ) ! before Brunt-Vaisala frequency |
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| 178 | CALL bn2 ( ts(:,:,:,:,Nnn), rab_n, rn2, Nnn ) ! now Brunt-Vaisala frequency |
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| 179 | |
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| 180 | ! VERTICAL PHYSICS |
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| 181 | ! [comm_cleanup] ! lbc_lnk from ZDF |
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| 182 | IF (nn_hls.eq.2) THEN |
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| 183 | IF( l_zdfsh2 ) THEN |
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| 184 | CALL lbc_lnk( 'stp_MLF', avm_k, 'W', 1.0_wp , avt_k, 'W', 1.0_wp, & |
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| 185 | & avm , 'W', 1.0_wp , avt , 'W', 1.0_wp , avs , 'W', 1.0_wp ) |
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| 186 | ELSE |
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| 187 | CALL lbc_lnk( 'stp_MLF', avm , 'W', 1.0_wp , avt , 'W', 1.0_wp , avs , 'W', 1.0_wp ) |
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| 188 | ENDIF |
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| 189 | ! CALL lbc_lnk( 'stp_MLF', uu(:,:,:,Nnn), 'U', -1.0_wp, vv(:,:,:,Nnn), 'V', -1.0_wp ) |
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| 190 | ! IF(.NOT.lk_linssh) CALL lbc_lnk( 'stp_MLF', r3u(:,:,Nnn), 'U', 1.0_wp, r3v(:,:,Nnn), 'V', 1.0_wp, r3t(:,:,Nnn), 'T', 1.0_wp ) |
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| 191 | ENDIF |
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| 192 | CALL zdf_phy( kstp, Nbb, Nnn, Nrhs ) ! vertical physics update (top/bot drag, avt, avs, avm + MLD) |
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| 193 | |
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| 194 | ! LATERAL PHYSICS |
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| 195 | ! |
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| 196 | IF( l_ldfslp ) THEN ! slope of lateral mixing |
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| 197 | CALL eos( ts(:,:,:,:,Nbb), rhd, gdept_0(:,:,:) ) ! before in situ density |
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| 198 | |
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| 199 | IF( ln_zps .AND. .NOT. ln_isfcav) & |
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| 200 | & CALL zps_hde ( kstp, Nnn, jpts, ts(:,:,:,:,Nbb), gtsu, gtsv, & ! Partial steps: before horizontal gradient |
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| 201 | & rhd, gru , grv ) ! of t, s, rd at the last ocean level |
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| 202 | |
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| 203 | IF( ln_zps .AND. ln_isfcav) & |
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| 204 | & CALL zps_hde_isf( kstp, Nnn, jpts, ts(:,:,:,:,Nbb), gtsu, gtsv, gtui, gtvi, & ! Partial steps for top cell (ISF) |
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| 205 | & rhd, gru , grv , grui, grvi ) ! of t, s, rd at the first ocean level |
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| 206 | IF( ln_traldf_triad ) THEN |
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| 207 | CALL ldf_slp_triad( kstp, Nbb, Nnn ) ! before slope for triad operator |
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| 208 | ELSE |
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| 209 | CALL ldf_slp ( kstp, rhd, rn2b, Nbb, Nnn ) ! before slope for standard operator |
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| 210 | ENDIF |
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| 211 | ENDIF |
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| 212 | ! ! eddy diffusivity coeff. |
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| 213 | IF( l_ldftra_time .OR. l_ldfeiv_time ) CALL ldf_tra( kstp, Nbb, Nnn ) ! and/or eiv coeff. |
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| 214 | IF( l_ldfdyn_time ) CALL ldf_dyn( kstp, Nbb ) ! eddy viscosity coeff. |
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| 215 | |
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| 216 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 217 | ! Ocean dynamics : hdiv, ssh, e3, u, v, w |
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| 218 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 219 | |
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| 220 | CALL ssh_nxt ( kstp, Nbb, Nnn, ssh, Naa ) ! after ssh (includes call to div_hor) |
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| 221 | IF( .NOT.lk_linssh ) THEN |
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| 222 | CALL dom_qco_r3c( ssh(:,:,Naa), r3t(:,:,Naa), r3u(:,:,Naa), r3v(:,:,Naa) ) ! "after" ssh/h_0 ratio at t,u,v pts |
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| 223 | IF( ln_dynspg_exp ) & |
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| 224 | & CALL dom_qco_r3c( ssh(:,:,Nnn), r3t(:,:,Nnn), r3u(:,:,Nnn), r3v(:,:,Nnn), r3f(:,:) ) ! spg_exp : needed only for "now" ssh/h_0 ratio at f point |
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| 225 | ENDIF |
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| 226 | CALL wzv ( kstp, Nbb, Nnn, Naa, ww ) ! Nnn cross-level velocity |
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| 227 | IF( ln_zad_Aimp ) CALL wAimp ( kstp, Nnn ) ! Adaptive-implicit vertical advection partitioning |
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| 228 | ALLOCATE( zgdept(jpi,jpj,jpk) ) |
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| 229 | DO jk = 1, jpk |
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| 230 | zgdept(:,:,jk) = gdept(:,:,jk,Nnn) |
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| 231 | END DO |
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| 232 | CALL eos ( ts(:,:,:,:,Nnn), rhd, rhop, zgdept ) ! now in situ density for hpg computation |
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| 233 | DEALLOCATE( zgdept ) |
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| 234 | |
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| 235 | uu(:,:,:,Nrhs) = 0._wp ! set dynamics trends to zero |
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| 236 | vv(:,:,:,Nrhs) = 0._wp |
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| 237 | |
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| 238 | IF( lk_asminc .AND. ln_asmiau .AND. ln_dyninc ) & |
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| 239 | & CALL dyn_asm_inc ( kstp, Nbb, Nnn, uu, vv, Nrhs ) ! apply dynamics assimilation increment |
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| 240 | IF( ln_bdy ) CALL bdy_dyn3d_dmp ( kstp, Nbb, uu, vv, Nrhs ) ! bdy damping trends |
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| 241 | #if defined key_agrif |
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| 242 | IF(.NOT. Agrif_Root()) & |
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| 243 | & CALL Agrif_Sponge_dyn ! momentum sponge |
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| 244 | #endif |
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| 245 | CALL dyn_adv( kstp, Nbb, Nnn , uu, vv, Nrhs ) ! advection (VF or FF) ==> RHS |
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| 246 | CALL dyn_vor( kstp, Nnn , uu, vv, Nrhs ) ! vorticity ==> RHS |
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| 247 | CALL dyn_ldf( kstp, Nbb, Nnn , uu, vv, Nrhs ) ! lateral mixing |
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| 248 | IF( ln_zdfosm ) CALL dyn_osm( kstp, Nnn , uu, vv, Nrhs ) ! OSMOSIS non-local velocity fluxes ==> RHS |
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| 249 | CALL dyn_hpg( kstp, Nnn , uu, vv, Nrhs ) ! horizontal gradient of Hydrostatic pressure |
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| 250 | CALL dyn_spg( kstp, Nbb, Nnn, Nrhs, uu, vv, ssh, uu_b, vv_b, Naa ) ! surface pressure gradient |
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| 251 | |
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| 252 | IF( ln_dynspg_ts ) THEN ! With split-explicit free surface, since now transports have been updated and ssh(:,:,Nrhs) |
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| 253 | ! as well as vertical scale factors and vertical velocity need to be updated |
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| 254 | CALL div_hor ( kstp, Nbb, Nnn ) ! Horizontal divergence (2nd call in time-split case) |
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| 255 | IF(.NOT.lk_linssh) CALL dom_qco_r3c( ssh(:,:,Naa), r3t(:,:,Naa), r3u(:,:,Naa), r3v(:,:,Naa), r3f(:,:) ) ! update ssh/h_0 ratio at t,u,v,f pts |
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| 256 | ENDIF |
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| 257 | CALL dyn_zdf ( kstp, Nbb, Nnn, Nrhs, uu, vv, Naa ) ! vertical diffusion |
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| 258 | IF( ln_dynspg_ts ) THEN ! vertical scale factors and vertical velocity need to be updated |
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| 259 | CALL wzv ( kstp, Nbb, Nnn, Naa, ww ) ! Nnn cross-level velocity |
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| 260 | IF( ln_zad_Aimp ) CALL wAimp ( kstp, Nnn ) ! Adaptive-implicit vertical advection partitioning |
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| 261 | ENDIF |
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| 262 | |
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| 263 | |
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| 264 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 265 | ! cool skin |
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| 266 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 267 | IF ( ln_diurnal ) CALL diurnal_layers( kstp ) |
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| 268 | |
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| 269 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 270 | ! diagnostics and outputs |
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| 271 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 272 | IF( ln_floats ) CALL flo_stp ( kstp, Nbb, Nnn ) ! drifting Floats |
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| 273 | IF( ln_diacfl ) CALL dia_cfl ( kstp, Nnn ) ! Courant number diagnostics |
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| 274 | CALL dia_hth ( kstp, Nnn ) ! Thermocline depth (20 degres isotherm depth) |
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| 275 | IF( ln_diadct ) CALL dia_dct ( kstp, Nnn ) ! Transports |
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| 276 | CALL dia_ar5 ( kstp, Nnn ) ! ar5 diag |
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| 277 | CALL dia_ptr ( kstp, Nnn ) ! Poleward adv/ldf TRansports diagnostics |
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| 278 | CALL dia_wri ( kstp, Nnn ) ! ocean model: outputs |
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| 279 | IF( ln_crs ) CALL crs_fld ( kstp, Nnn ) ! ocean model: online field coarsening & output |
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| 280 | IF( lk_diadetide ) CALL dia_detide( kstp ) ! Weights computation for daily detiding of model diagnostics |
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| 281 | IF( lk_diamlr ) CALL dia_mlr ! Update time used in multiple-linear-regression analysis |
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| 282 | |
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| 283 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 284 | ! Now ssh filtering |
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| 285 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 286 | CALL ssh_atf ( kstp, Nbb, Nnn, Naa, ssh ) ! time filtering of "now" sea surface height |
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| 287 | IF(.NOT.lk_linssh) CALL dom_qco_r3c( ssh(:,:,Nnn), r3t_f, r3u_f, r3v_f ) ! "now" ssh/h_0 ratio from filtrered ssh |
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| 288 | #if defined key_top |
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| 289 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 290 | ! Passive Tracer Model |
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| 291 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 292 | CALL trc_stp ( kstp, Nbb, Nnn, Nrhs, Naa ) ! time-stepping |
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| 293 | #endif |
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| 294 | |
|---|
| 295 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 296 | ! Active tracers |
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| 297 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 298 | ! Loop over tile domains |
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| 299 | DO jtile = 1, nijtile |
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| 300 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 301 | |
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| 302 | DO_3D( 0, 0, 0, 0, 1, jpk ) |
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| 303 | ts(ji,jj,jk,:,Nrhs) = 0._wp ! set tracer trends to zero |
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| 304 | END_3D |
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| 305 | |
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| 306 | IF( lk_asminc .AND. ln_asmiau .AND. & |
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| 307 | & ln_trainc ) CALL tra_asm_inc( kstp, Nbb, Nnn, ts, Nrhs ) ! apply tracer assimilation increment |
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| 308 | CALL tra_sbc ( kstp, Nnn, ts, Nrhs ) ! surface boundary condition |
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| 309 | IF( ln_traqsr ) CALL tra_qsr ( kstp, Nnn, ts, Nrhs ) ! penetrative solar radiation qsr |
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| 310 | IF( ln_isf ) CALL tra_isf ( kstp, Nnn, ts, Nrhs ) ! ice shelf heat flux |
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| 311 | IF( ln_trabbc ) CALL tra_bbc ( kstp, Nnn, ts, Nrhs ) ! bottom heat flux |
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| 312 | IF( ln_trabbl ) CALL tra_bbl ( kstp, Nbb, Nnn, ts, Nrhs ) ! advective (and/or diffusive) bottom boundary layer scheme |
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| 313 | IF( ln_tradmp ) CALL tra_dmp ( kstp, Nbb, Nnn, ts, Nrhs ) ! internal damping trends |
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| 314 | IF( ln_bdy ) CALL bdy_tra_dmp( kstp, Nbb, ts, Nrhs ) ! bdy damping trends |
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| 315 | END DO |
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| 316 | |
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| 317 | #if defined key_agrif |
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| 318 | IF(.NOT. Agrif_Root() ) THEN |
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| 319 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = 0 ) |
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| 320 | CALL Agrif_Sponge_tra ! tracers sponge |
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| 321 | ENDIF |
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| 322 | #endif |
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| 323 | |
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| 324 | ! [comm_cleanup] ! lbc_lnk from tra_adv |
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| 325 | IF (nn_hls.EQ.2) THEN |
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| 326 | SELECT CASE ( nadv ) |
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| 327 | CASE ( np_FCT ) ! FCT scheme : 2nd / 4th order |
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| 328 | CALL lbc_lnk( 'stp_MLF', ts(:,:,:,:,Nbb), 'T', 1., ts(:,:,:,:,Nnn), 'T', 1.) |
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| 329 | CALL lbc_lnk( 'stp_MLF', uu(:,:,:,Nnn), 'U', -1., vv(:,:,:,Nnn), 'V', -1., ww(:,:,:), 'W', 1.) |
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| 330 | CASE ( np_MUS ) ! MUSCL |
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| 331 | CALL lbc_lnk( 'stp_MLF', ts(:,:,:,:,Nbb), 'T', 1.) |
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| 332 | CASE ( np_UBS ) ! UBS |
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| 333 | CALL lbc_lnk( 'stp_MLF', ts(:,:,:,:,Nbb), 'T', 1.) |
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| 334 | CASE ( np_QCK ) ! QUICKEST |
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| 335 | CALL lbc_lnk( 'stp_MLF', uu(:,:,:,Nnn), 'U', -1., vv(:,:,:,Nnn), 'V', -1.) |
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| 336 | CALL lbc_lnk( 'stp_MLF', ts(:,:,:,:,Nbb), 'T', 1.) |
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| 337 | END SELECT |
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| 338 | ENDIF |
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| 339 | |
|---|
| 340 | ! TEMP: [tiling] Separate loop over tile domains (due to tra_adv workarounds for tiling) |
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| 341 | DO jtile = 1, nijtile |
|---|
| 342 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = jtile ) |
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| 343 | |
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| 344 | CALL tra_adv ( kstp, Nbb, Nnn, ts, Nrhs ) ! hor. + vert. advection ==> RHS |
|---|
| 345 | IF( ln_zdfmfc ) CALL tra_mfc ( kstp, Nbb, ts, Nrhs ) ! Mass Flux Convection |
|---|
| 346 | IF( ln_zdfosm ) THEN |
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| 347 | CALL tra_osm ( kstp, Nnn, ts, Nrhs ) ! OSMOSIS non-local tracer fluxes ==> RHS |
|---|
| 348 | IF( lrst_oce ) CALL osm_rst ( kstp, Nnn, 'WRITE' ) ! write OSMOSIS outputs + ww (so must do here) to restarts |
|---|
| 349 | ENDIF |
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| 350 | CALL tra_ldf ( kstp, Nbb, Nnn, ts, Nrhs ) ! lateral mixing |
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| 351 | |
|---|
| 352 | CALL tra_zdf ( kstp, Nbb, Nnn, Nrhs, ts, Naa ) ! vertical mixing and after tracer fields |
|---|
| 353 | IF( ln_zdfnpc ) CALL tra_npc ( kstp, Nnn, Nrhs, ts, Naa ) ! update after fields by non-penetrative convection |
|---|
| 354 | END DO |
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| 355 | |
|---|
| 356 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = 0 ) ! Revert to tile over full domain |
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| 357 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
|---|
| 358 | ! Set boundary conditions, time filter and swap time levels |
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| 359 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
|---|
| 360 | !!jc1: For agrif, it would be much better to finalize tracers/momentum here (e.g. bdy conditions) and move the swap |
|---|
| 361 | !! (and time filtering) after Agrif update. Then restart would be done after and would contain updated fields. |
|---|
| 362 | !! If so: |
|---|
| 363 | !! (i) no need to call agrif update at initialization time |
|---|
| 364 | !! (ii) no need to update "before" fields |
|---|
| 365 | !! |
|---|
| 366 | !! Apart from creating new tra_swp/dyn_swp routines, this however: |
|---|
| 367 | !! (i) makes boundary conditions at initialization time computed from updated fields which is not the case between |
|---|
| 368 | !! two restarts => restartability issue. One can circumvent this, maybe, by assuming "interface separation", |
|---|
| 369 | !! e.g. a shift of the feedback interface inside child domain. |
|---|
| 370 | !! (ii) requires that all restart outputs of updated variables by agrif (e.g. passive tracers/tke/barotropic arrays) are done at the same |
|---|
| 371 | !! place. |
|---|
| 372 | !! |
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| 373 | IF( ln_dynspg_ts ) CALL mlf_baro_corr ( Nnn, Naa, uu, vv ) ! barotrope adjustment |
|---|
| 374 | CALL finalize_lbc ( kstp, Nbb , Naa, uu, vv, ts ) ! boundary conditions |
|---|
| 375 | CALL tra_atf_qco ( kstp, Nbb, Nnn, Naa , ts ) ! time filtering of "now" tracer arrays |
|---|
| 376 | CALL dyn_atf_qco ( kstp, Nbb, Nnn, Naa, uu, vv ) ! time filtering of "now" velocities |
|---|
| 377 | IF(.NOT.lk_linssh) THEN |
|---|
| 378 | r3t(:,:,Nnn) = r3t_f(:,:) ! update now ssh/h_0 with time filtered values |
|---|
| 379 | r3u(:,:,Nnn) = r3u_f(:,:) |
|---|
| 380 | r3v(:,:,Nnn) = r3v_f(:,:) |
|---|
| 381 | ENDIF |
|---|
| 382 | ! |
|---|
| 383 | ! Swap time levels |
|---|
| 384 | Nrhs = Nbb |
|---|
| 385 | Nbb = Nnn |
|---|
| 386 | Nnn = Naa |
|---|
| 387 | Naa = Nrhs |
|---|
| 388 | ! |
|---|
| 389 | ! |
|---|
| 390 | IF( ln_diahsb ) CALL dia_hsb ( kstp, Nbb, Nnn ) ! - ML - global conservation diagnostics |
|---|
| 391 | |
|---|
| 392 | !!gm : This does not only concern the dynamics ==>>> add a new title |
|---|
| 393 | !!gm2: why ouput restart before AGRIF update? |
|---|
| 394 | !! |
|---|
| 395 | !!jc: That would be better, but see comment above |
|---|
| 396 | !! |
|---|
| 397 | IF( lrst_oce ) CALL rst_write ( kstp, Nbb, Nnn ) ! write output ocean restart file |
|---|
| 398 | IF( ln_sto_eos ) CALL sto_rst_write( kstp ) ! write restart file for stochastic parameters |
|---|
| 399 | |
|---|
| 400 | #if defined key_agrif |
|---|
| 401 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
|---|
| 402 | ! AGRIF recursive integration |
|---|
| 403 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
|---|
| 404 | Kbb_a = Nbb; Kmm_a = Nnn; Krhs_a = Nrhs ! agrif_oce module copies of time level indices |
|---|
| 405 | CALL Agrif_Integrate_ChildGrids( stp_MLF ) ! allows to finish all the Child Grids before updating |
|---|
| 406 | |
|---|
| 407 | #endif |
|---|
| 408 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
|---|
| 409 | ! Control |
|---|
| 410 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
|---|
| 411 | CALL stp_ctl ( kstp, Nnn ) |
|---|
| 412 | |
|---|
| 413 | #if defined key_agrif |
|---|
| 414 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
|---|
| 415 | ! AGRIF update |
|---|
| 416 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
|---|
| 417 | IF( Agrif_NbStepint() == 0 .AND. nstop == 0 ) & |
|---|
| 418 | & CALL Agrif_update_all( ) ! Update all components |
|---|
| 419 | |
|---|
| 420 | #endif |
|---|
| 421 | IF( ln_diaobs .AND. nstop == 0 ) & |
|---|
| 422 | & CALL dia_obs( kstp, Nnn ) ! obs-minus-model (assimilation) diags (after dynamics update) |
|---|
| 423 | |
|---|
| 424 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
|---|
| 425 | ! File manipulation at the end of the first time step |
|---|
| 426 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
|---|
| 427 | IF( kstp == nit000 ) THEN ! 1st time step only |
|---|
| 428 | CALL iom_close( numror ) ! close input ocean restart file |
|---|
| 429 | IF( lrxios ) CALL iom_context_finalize( cr_ocerst_cxt ) |
|---|
| 430 | IF(lwm) CALL FLUSH ( numond ) ! flush output namelist oce |
|---|
| 431 | IF(lwm .AND. numoni /= -1 ) CALL FLUSH ( numoni ) ! flush output namelist ice (if exist) |
|---|
| 432 | ENDIF |
|---|
| 433 | |
|---|
| 434 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
|---|
| 435 | ! Coupled mode |
|---|
| 436 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
|---|
| 437 | IF( lk_oasis .AND. nstop == 0 ) CALL sbc_cpl_snd( kstp, Nbb, Nnn ) ! coupled mode : field exchanges |
|---|
| 438 | ! |
|---|
| 439 | #if defined key_xios |
|---|
| 440 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
|---|
| 441 | ! Finalize contextes if end of simulation or error detected |
|---|
| 442 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
|---|
| 443 | IF( kstp == nitend .OR. nstop > 0 ) THEN |
|---|
| 444 | CALL iom_context_finalize( cxios_context ) ! needed for XIOS+AGRIF |
|---|
| 445 | IF( ln_crs ) CALL iom_context_finalize( trim(cxios_context)//"_crs" ) ! |
|---|
| 446 | ENDIF |
|---|
| 447 | #endif |
|---|
| 448 | ! |
|---|
| 449 | IF( l_1st_euler ) THEN ! recover Leap-frog timestep |
|---|
| 450 | rDt = 2._wp * rn_Dt |
|---|
| 451 | r1_Dt = 1._wp / rDt |
|---|
| 452 | l_1st_euler = .FALSE. |
|---|
| 453 | ENDIF |
|---|
| 454 | ! |
|---|
| 455 | IF( ln_timing ) CALL timing_stop('stp_MLF') |
|---|
| 456 | ! |
|---|
| 457 | END SUBROUTINE stp_MLF |
|---|
| 458 | |
|---|
| 459 | |
|---|
| 460 | SUBROUTINE mlf_baro_corr( Kmm, Kaa, puu, pvv ) |
|---|
| 461 | !!---------------------------------------------------------------------- |
|---|
| 462 | !! *** ROUTINE mlf_baro_corr *** |
|---|
| 463 | !! |
|---|
| 464 | !! ** Purpose : Finalize after horizontal velocity. |
|---|
| 465 | !! |
|---|
| 466 | !! ** Method : * Ensure after velocities transport matches time splitting |
|---|
| 467 | !! estimate (ln_dynspg_ts=T) |
|---|
| 468 | !! |
|---|
| 469 | !! ** Action : puu(Kmm),pvv(Kmm) updated now horizontal velocity (ln_bt_fw=F) |
|---|
| 470 | !! puu(Kaa),pvv(Kaa) after horizontal velocity |
|---|
| 471 | !!---------------------------------------------------------------------- |
|---|
| 472 | USE dynspg_ts, ONLY : un_adv, vn_adv ! updated Kmm barotropic transport |
|---|
| 473 | !! |
|---|
| 474 | INTEGER , INTENT(in ) :: Kmm, Kaa ! before and after time level indices |
|---|
| 475 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpt), INTENT(inout) :: puu, pvv ! velocities |
|---|
| 476 | ! |
|---|
| 477 | INTEGER :: jk ! dummy loop indices |
|---|
| 478 | REAL(wp), DIMENSION(jpi,jpj) :: zue, zve |
|---|
| 479 | !!---------------------------------------------------------------------- |
|---|
| 480 | |
|---|
| 481 | ! Ensure below that barotropic velocities match time splitting estimate |
|---|
| 482 | ! Compute actual transport and replace it with ts estimate at "after" time step |
|---|
| 483 | zue(:,:) = e3u(:,:,1,Kaa) * puu(:,:,1,Kaa) * umask(:,:,1) |
|---|
| 484 | zve(:,:) = e3v(:,:,1,Kaa) * pvv(:,:,1,Kaa) * vmask(:,:,1) |
|---|
| 485 | DO jk = 2, jpkm1 |
|---|
| 486 | zue(:,:) = zue(:,:) + e3u(:,:,jk,Kaa) * puu(:,:,jk,Kaa) * umask(:,:,jk) |
|---|
| 487 | zve(:,:) = zve(:,:) + e3v(:,:,jk,Kaa) * pvv(:,:,jk,Kaa) * vmask(:,:,jk) |
|---|
| 488 | END DO |
|---|
| 489 | DO jk = 1, jpkm1 |
|---|
| 490 | puu(:,:,jk,Kaa) = ( puu(:,:,jk,Kaa) - zue(:,:) * r1_hu(:,:,Kaa) + uu_b(:,:,Kaa) ) * umask(:,:,jk) |
|---|
| 491 | pvv(:,:,jk,Kaa) = ( pvv(:,:,jk,Kaa) - zve(:,:) * r1_hv(:,:,Kaa) + vv_b(:,:,Kaa) ) * vmask(:,:,jk) |
|---|
| 492 | END DO |
|---|
| 493 | ! |
|---|
| 494 | IF( .NOT.ln_bt_fw ) THEN |
|---|
| 495 | ! Remove advective velocity from "now velocities" |
|---|
| 496 | ! prior to asselin filtering |
|---|
| 497 | ! In the forward case, this is done below after asselin filtering |
|---|
| 498 | ! so that asselin contribution is removed at the same time |
|---|
| 499 | DO jk = 1, jpkm1 |
|---|
| 500 | puu(:,:,jk,Kmm) = ( puu(:,:,jk,Kmm) - un_adv(:,:)*r1_hu(:,:,Kmm) + uu_b(:,:,Kmm) )*umask(:,:,jk) |
|---|
| 501 | pvv(:,:,jk,Kmm) = ( pvv(:,:,jk,Kmm) - vn_adv(:,:)*r1_hv(:,:,Kmm) + vv_b(:,:,Kmm) )*vmask(:,:,jk) |
|---|
| 502 | END DO |
|---|
| 503 | ENDIF |
|---|
| 504 | ! |
|---|
| 505 | END SUBROUTINE mlf_baro_corr |
|---|
| 506 | |
|---|
| 507 | |
|---|
| 508 | SUBROUTINE finalize_lbc( kt, Kbb, Kaa, puu, pvv, pts ) |
|---|
| 509 | !!---------------------------------------------------------------------- |
|---|
| 510 | !! *** ROUTINE finalize_lbc *** |
|---|
| 511 | !! |
|---|
| 512 | !! ** Purpose : Apply the boundary condition on the after velocity |
|---|
| 513 | !! |
|---|
| 514 | !! ** Method : * Apply lateral boundary conditions on after velocity |
|---|
| 515 | !! at the local domain boundaries through lbc_lnk call, |
|---|
| 516 | !! at the one-way open boundaries (ln_bdy=T), |
|---|
| 517 | !! at the AGRIF zoom boundaries (lk_agrif=T) |
|---|
| 518 | !! |
|---|
| 519 | !! ** Action : puu(Kaa),pvv(Kaa) after horizontal velocity and tracers |
|---|
| 520 | !!---------------------------------------------------------------------- |
|---|
| 521 | #if defined key_agrif |
|---|
| 522 | USE agrif_oce_interp |
|---|
| 523 | #endif |
|---|
| 524 | USE bdydyn ! ocean open boundary conditions (define bdy_dyn) |
|---|
| 525 | !! |
|---|
| 526 | INTEGER , INTENT(in ) :: kt ! ocean time-step index |
|---|
| 527 | INTEGER , INTENT(in ) :: Kbb, Kaa ! before and after time level indices |
|---|
| 528 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpt) , INTENT(inout) :: puu, pvv ! velocities to be time filtered |
|---|
| 529 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers |
|---|
| 530 | !!---------------------------------------------------------------------- |
|---|
| 531 | ! |
|---|
| 532 | ! Update after tracer and velocity on domain lateral boundaries |
|---|
| 533 | ! |
|---|
| 534 | # if defined key_agrif |
|---|
| 535 | CALL Agrif_tra !* AGRIF zoom boundaries |
|---|
| 536 | CALL Agrif_dyn( kt ) |
|---|
| 537 | # endif |
|---|
| 538 | ! ! local domain boundaries (T-point, unchanged sign) |
|---|
| 539 | CALL lbc_lnk( 'finalize_lbc', puu(:,:,:, Kaa), 'U', -1., pvv(:,:,: ,Kaa), 'V', -1. & |
|---|
| 540 | & , pts(:,:,:,jp_tem,Kaa), 'T', 1., pts(:,:,:,jp_sal,Kaa), 'T', 1. ) |
|---|
| 541 | ! |
|---|
| 542 | ! !* BDY open boundaries |
|---|
| 543 | IF( ln_bdy ) THEN |
|---|
| 544 | CALL bdy_tra( kt, Kbb, pts, Kaa ) |
|---|
| 545 | IF( ln_dynspg_exp ) CALL bdy_dyn( kt, Kbb, puu, pvv, Kaa ) |
|---|
| 546 | IF( ln_dynspg_ts ) CALL bdy_dyn( kt, Kbb, puu, pvv, Kaa, dyn3d_only=.true. ) |
|---|
| 547 | ENDIF |
|---|
| 548 | ! |
|---|
| 549 | END SUBROUTINE finalize_lbc |
|---|
| 550 | |
|---|
| 551 | #else |
|---|
| 552 | !!---------------------------------------------------------------------- |
|---|
| 553 | !! default option EMPTY MODULE qco not activated |
|---|
| 554 | !!---------------------------------------------------------------------- |
|---|
| 555 | #endif |
|---|
| 556 | |
|---|
| 557 | !!====================================================================== |
|---|
| 558 | END MODULE stpmlf |
|---|
