| 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 | !! ! 2011-05 (S. Pickles) dCSE NEMO optimisations - z index first |
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| 26 | !!---------------------------------------------------------------------- |
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| 27 | |
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| 28 | !!---------------------------------------------------------------------- |
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| 29 | !! stp : OPA system time-stepping |
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| 30 | !!---------------------------------------------------------------------- |
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| 31 | USE step_oce ! time stepping definition modules |
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| 32 | #if defined key_top |
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| 33 | USE trcstp ! passive tracer time-stepping (trc_stp routine) |
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| 34 | #endif |
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| 35 | #if defined key_agrif |
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| 36 | USE agrif_opa_sponge ! Momemtum and tracers sponges |
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| 37 | #endif |
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| 38 | USE asminc ! assimilation increments (tra_asm_inc, dyn_asm_inc routines) |
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| 39 | USE timing, ONLY: timing_start, timing_stop, timing_reset, timing_disable |
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| 40 | USE arpdebugging, ONLY: dump_array |
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| 41 | IMPLICIT NONE |
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| 42 | PRIVATE |
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| 43 | |
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| 44 | PUBLIC stp ! called by opa.F90 |
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| 45 | |
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| 46 | !! * Control permutation of array indices |
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| 47 | !! DCSE_NEMO: warning! dom_oce and zdf_oce public variables are made available |
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| 48 | !! through the use of step_oce |
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| 49 | # include "dom_oce_ftrans.h90" |
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| 50 | # include "zdf_oce_ftrans.h90" |
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| 51 | |
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| 52 | !! * Substitutions |
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| 53 | # include "domzgr_substitute.h90" |
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| 54 | # include "zdfddm_substitute.h90" |
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| 55 | !!---------------------------------------------------------------------- |
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| 56 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 57 | !! $Id$ |
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| 58 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 59 | !!---------------------------------------------------------------------- |
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| 60 | CONTAINS |
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| 61 | |
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| 62 | #if defined key_agrif |
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| 63 | SUBROUTINE stp( ) |
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| 64 | INTEGER :: kstp ! ocean time-step index |
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| 65 | #else |
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| 66 | SUBROUTINE stp( kstp ) |
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| 67 | INTEGER, INTENT(in) :: kstp ! ocean time-step index |
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| 68 | #endif |
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| 69 | !!---------------------------------------------------------------------- |
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| 70 | !! *** ROUTINE stp *** |
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| 71 | !! |
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| 72 | !! ** Purpose : - Time stepping of OPA (momentum and active tracer eqs.) |
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| 73 | !! - Time stepping of LIM (dynamic and thermodynamic eqs.) |
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| 74 | !! - Tme stepping of TRC (passive tracer eqs.) |
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| 75 | !! |
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| 76 | !! ** Method : -1- Update forcings and data |
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| 77 | !! -2- Update ocean physics |
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| 78 | !! -3- Compute the t and s trends |
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| 79 | !! -4- Update t and s |
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| 80 | !! -5- Compute the momentum trends |
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| 81 | !! -6- Update the horizontal velocity |
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| 82 | !! -7- Compute the diagnostics variables (rd,N2, div,cur,w) |
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| 83 | !! -8- Outputs and diagnostics |
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| 84 | !!---------------------------------------------------------------------- |
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| 85 | INTEGER :: jk ! dummy loop indice |
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| 86 | INTEGER :: indic ! error indicator if < 0 |
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| 87 | #if defined key_z_first |
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| 88 | INTEGER :: ji, jj ! dummy loop indices |
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| 89 | #endif |
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| 90 | !! --------------------------------------------------------------------- |
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| 91 | CALL timing_start('Step') |
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| 92 | |
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| 93 | #if defined key_agrif |
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| 94 | kstp = nit000 + Agrif_Nb_Step() |
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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 |
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| 97 | # if defined key_iomput |
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| 98 | IF( Agrif_Nbstepint() == 0 ) CALL iom_swap |
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| 99 | # endif |
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| 100 | #endif |
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| 101 | indic = 0 ! reset to no error condition |
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| 102 | IF( kstp /= nit000 ) CALL day( kstp ) ! Calendar (day was already called at nit000 in day_init) |
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| 103 | CALL iom_setkt( kstp ) ! say to iom that we are at time step kstp |
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| 104 | |
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| 105 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 106 | ! Update data, open boundaries, surface boundary condition (including sea-ice) |
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| 107 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 108 | CALL timing_start('Boundaries') |
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| 109 | IF( lk_dtatem ) CALL dta_tem( kstp ) ! update 3D temperature data |
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| 110 | IF( lk_dtasal ) CALL dta_sal( kstp ) ! update 3D salinity data |
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| 111 | CALL sbc ( kstp ) ! Sea Boundary Condition (including sea-ice) |
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| 112 | IF( lk_obc ) CALL obc_dta( kstp ) ! update dynamic and tracer data at open boundaries |
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| 113 | IF( lk_obc ) CALL obc_rad( kstp ) ! compute phase velocities at open boundaries |
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| 114 | IF( lk_bdy ) CALL bdy_dta_frs( kstp ) ! update dynamic and tracer data for FRS conditions (BDY) |
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| 115 | ! ARP - no 'section' arg here so the time taken |
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| 116 | ! in this region (which can involve IO) is |
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| 117 | ! subtracted from the time |
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| 118 | ! taken to do the whole step. |
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| 119 | CALL timing_stop('Boundaries') |
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| 120 | |
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| 121 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 122 | ! Ocean dynamics : ssh, wn, hdiv, rot ! |
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| 123 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 124 | CALL timing_start('Ocean Dyn.') |
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| 125 | CALL ssh_wzv( kstp ) ! after ssh & vertical velocity |
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| 126 | CALL timing_stop('Ocean Dyn.','section') |
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| 127 | |
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| 128 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 129 | ! Ocean physics update (ua, va, ta, sa used as workspace) |
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| 130 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 131 | CALL timing_start('Ocean Phys.') |
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| 132 | CALL bn2( tsb, rn2b ) ! before Brunt-Vaisala frequency |
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| 133 | CALL bn2( tsn, rn2 ) ! now Brunt-Vaisala frequency |
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| 134 | CALL timing_stop('Ocean Phys.','section') |
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| 135 | ! |
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| 136 | ! VERTICAL PHYSICS |
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| 137 | CALL timing_start('Vert. Phys.') |
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| 138 | CALL zdf_bfr( kstp ) ! bottom friction |
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| 139 | |
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| 140 | ! ! Vertical eddy viscosity and diffusivity coefficients |
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| 141 | IF( lk_zdfric ) CALL zdf_ric( kstp ) ! Richardson number dependent Kz |
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| 142 | IF( lk_zdftke ) CALL zdf_tke( kstp ) ! TKE closure scheme for Kz |
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| 143 | IF( lk_zdfgls ) CALL zdf_gls( kstp ) ! GLS closure scheme for Kz |
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| 144 | IF( lk_zdfkpp ) CALL zdf_kpp( kstp ) ! KPP closure scheme for Kz |
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| 145 | IF( lk_zdfcst ) THEN ! Constant Kz (reset avt, avm[uv] to the background value) |
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| 146 | avt (:,:,:) = rn_avt0 * tmask(:,:,:) |
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| 147 | avmu(:,:,:) = rn_avm0 * umask(:,:,:) |
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| 148 | avmv(:,:,:) = rn_avm0 * vmask(:,:,:) |
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| 149 | ENDIF |
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| 150 | IF( ln_rnf_mouth ) THEN ! increase diffusivity at rivers mouths |
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| 151 | #if defined key_z_first |
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| 152 | DO ji = 1, jpi |
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| 153 | DO jj = 1, jpj |
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| 154 | DO jk = 2, nkrnf |
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| 155 | avt(ji,jj,jk) = avt(ji,jj,jk) + 2.e0 * rn_avt_rnf * rnfmsk(ji,jj) * tmask(ji,jj,jk) |
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| 156 | END DO |
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| 157 | END DO |
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| 158 | END DO |
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| 159 | #else |
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| 160 | DO jk = 2, nkrnf |
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| 161 | avt(:,:,jk) = avt(:,:,jk) + 2.e0 * rn_avt_rnf * rnfmsk(:,:) * tmask(:,:,jk) |
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| 162 | END DO |
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| 163 | #endif |
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| 164 | ENDIF |
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| 165 | IF( ln_zdfevd ) CALL zdf_evd( kstp ) ! enhanced vertical eddy diffusivity |
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| 166 | |
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| 167 | IF( lk_zdftmx ) CALL zdf_tmx( kstp ) ! tidal vertical mixing |
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| 168 | |
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| 169 | IF( lk_zdfddm .AND. .NOT. lk_zdfkpp ) & |
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| 170 | & CALL zdf_ddm( kstp ) ! double diffusive mixing |
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| 171 | |
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| 172 | CALL zdf_mxl( kstp ) ! mixed layer depth |
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| 173 | |
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| 174 | ! write TKE or GLS information in the restart file |
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| 175 | IF( lrst_oce .AND. lk_zdftke ) CALL tke_rst( kstp, 'WRITE' ) |
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| 176 | IF( lrst_oce .AND. lk_zdfgls ) CALL gls_rst( kstp, 'WRITE' ) |
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| 177 | |
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| 178 | CALL timing_stop('Vert. Phys.','section') |
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| 179 | ! |
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| 180 | ! LATERAL PHYSICS |
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| 181 | ! |
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| 182 | CALL timing_start('Lateral Phys.') |
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| 183 | ! |
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| 184 | IF( lk_ldfslp ) THEN ! slope of lateral mixing |
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| 185 | CALL eos( tsb, rhd ) ! before in situ density |
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| 186 | IF( ln_zps ) CALL zps_hde( kstp, jpts, tsb, gtsu, gtsv, & ! Partial steps: before horizontal gradient |
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| 187 | & rhd, gru , grv ) ! of t, s, rd at the last ocean level |
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| 188 | IF( ln_traldf_grif ) THEN ! before slope for Griffies operator |
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| 189 | CALL ldf_slp_grif( kstp ) |
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| 190 | ELSE |
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| 191 | CALL ldf_slp( kstp, rhd, rn2b ) ! before slope for Madec operator |
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| 192 | ENDIF |
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| 193 | ENDIF |
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| 194 | #if defined key_traldf_c2d |
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| 195 | IF( lk_traldf_eiv ) CALL ldf_eiv( kstp ) ! eddy induced velocity coefficient |
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| 196 | #endif |
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| 197 | CALL timing_stop('Lateral Phys.','section') |
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| 198 | |
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| 199 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 200 | ! diagnostics and outputs (ua, va, ta, sa used as workspace) |
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| 201 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 202 | CALL timing_start('Diagnostics') |
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| 203 | IF( lk_floats ) CALL flo_stp( kstp ) ! drifting Floats |
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| 204 | IF( lk_diahth ) CALL dia_hth( kstp ) ! Thermocline depth (20 degres isotherm depth) |
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| 205 | IF( lk_diafwb ) CALL dia_fwb( kstp ) ! Fresh water budget diagnostics |
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| 206 | IF( ln_diaptr ) CALL dia_ptr( kstp ) ! Poleward TRansports diagnostics |
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| 207 | IF( lk_diaar5 ) CALL dia_ar5( kstp ) ! ar5 diag |
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| 208 | CALL dia_wri( kstp ) ! ocean model: outputs |
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| 209 | CALL timing_stop('Diagnostics','section') |
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| 210 | |
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| 211 | #if defined key_top |
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| 212 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 213 | ! Passive Tracer Model |
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| 214 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 215 | CALL trc_stp( kstp ) ! time-stepping |
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| 216 | #endif |
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| 217 | |
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| 218 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 219 | ! Active tracers (ua, va used as workspace) |
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| 220 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 221 | CALL timing_start('Active tracers') |
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| 222 | |
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| 223 | tsa(:,:,:,:) = 0.e0 ! set tracer trends to zero |
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| 224 | |
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| 225 | IF( ln_asmiau .AND. & |
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| 226 | & ln_trainc ) CALL tra_asm_inc( kstp ) ! apply tracer assimilation increment |
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| 227 | CALL tra_sbc ( kstp ) ! surface boundary condition |
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| 228 | IF( ln_traqsr ) CALL tra_qsr ( kstp ) ! penetrative solar radiation qsr |
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| 229 | IF( ln_trabbc ) CALL tra_bbc ( kstp ) ! bottom heat flux |
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| 230 | IF( lk_trabbl ) CALL tra_bbl ( kstp ) ! advective (and/or diffusive) bottom boundary layer scheme |
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| 231 | IF( lk_tradmp ) CALL tra_dmp ( kstp ) ! internal damping trends |
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| 232 | CALL tra_adv ( kstp ) ! horizontal & vertical advection |
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| 233 | IF( lk_zdfkpp ) CALL tra_kpp ( kstp ) ! KPP non-local tracer fluxes |
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| 234 | CALL tra_ldf ( kstp ) ! lateral mixing |
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| 235 | #if defined key_agrif |
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| 236 | CALL tra_unswap |
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| 237 | IF(.NOT. Agrif_Root()) CALL Agrif_Sponge_tra ! tracers sponge |
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| 238 | CALL tra_swap |
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| 239 | #endif |
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| 240 | CALL tra_zdf ( kstp ) ! vertical mixing and after tracer fields |
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| 241 | |
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| 242 | IF( ln_dynhpg_imp ) THEN ! semi-implicit hpg (time stepping then eos) |
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| 243 | IF( ln_zdfnpc ) CALL tra_npc( kstp ) ! update after fields by non-penetrative convection |
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| 244 | CALL tra_nxt( kstp ) ! tracer fields at next time step |
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| 245 | CALL eos ( tsa, rhd, rhop ) ! Time-filtered in situ density for hpg computation |
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| 246 | IF( ln_zps ) CALL zps_hde( kstp, jpts, tsa, gtsu, gtsv, & ! zps: time filtered hor. derivative |
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| 247 | & rhd, gru , grv ) ! of t, s, rd at the last ocean level |
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| 248 | |
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| 249 | ELSE ! centered hpg (eos then time stepping) |
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| 250 | CALL eos ( tsn, rhd, rhop ) ! now in situ density for hpg computation |
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| 251 | IF( ln_zps ) CALL zps_hde( kstp, jpts, tsn, gtsu, gtsv, & ! zps: now hor. derivative |
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| 252 | & rhd, gru , grv ) ! of t, s, rd at the last ocean level |
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| 253 | IF( ln_zdfnpc ) CALL tra_npc( kstp ) ! update after fields by non-penetrative convection |
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| 254 | CALL tra_nxt( kstp ) ! tracer fields at next time step |
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| 255 | ENDIF |
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| 256 | CALL tra_unswap ! udate T & S 3D arrays (to be suppressed) |
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| 257 | CALL timing_stop('Active tracers','section') |
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| 258 | |
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| 259 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 260 | ! Dynamics (ta, sa used as workspace) |
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| 261 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 262 | CALL timing_start('Dynamics') |
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| 263 | |
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| 264 | ua(:,:,:) = 0.e0 ! set dynamics trends to zero |
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| 265 | va(:,:,:) = 0.e0 |
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| 266 | |
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| 267 | IF( ln_asmiau .AND. & |
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| 268 | & ln_dyninc ) CALL dyn_asm_inc( kstp ) ! apply dynamics assimilation increment |
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| 269 | !CALL dump_array(kstp,'un_pre_adv',un(:,:,27), & |
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| 270 | ! withHalos=.TRUE.) |
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| 271 | |
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| 272 | !CALL timing_start('dyn_adv') |
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| 273 | CALL dyn_adv( kstp ) ! advection (vector or flux form) |
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| 274 | !CALL timing_stop('dyn_adv','section') |
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| 275 | |
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| 276 | !CALL dump_array(kstp,'ua_pre_vor',ua(:,:,27), & |
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| 277 | ! withHalos=.TRUE.) |
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| 278 | |
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| 279 | !CALL timing_start('dyn_vor') |
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| 280 | CALL dyn_vor( kstp ) ! vorticity term including Coriolis |
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| 281 | !CALL timing_stop('dyn_vor','section') |
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| 282 | |
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| 283 | !CALL dump_array(kstp,'ua_pre_ldf',ua(:,:,27), & |
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| 284 | ! withHalos=.TRUE.) |
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| 285 | |
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| 286 | !CALL timing_start('dyn_ldf') |
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| 287 | CALL dyn_ldf( kstp ) ! lateral mixing |
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| 288 | !CALL timing_stop('dyn_ldf','section') |
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| 289 | |
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| 290 | #if defined key_agrif |
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| 291 | IF(.NOT. Agrif_Root()) CALL Agrif_Sponge_dyn ! momemtum sponge |
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| 292 | #endif |
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| 293 | !CALL dump_array(kstp,'ua_pre_hpg',ua(:,:,27), & |
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| 294 | ! withHalos=.TRUE.) |
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| 295 | |
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| 296 | !CALL timing_start('dyn_hpg') |
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| 297 | CALL dyn_hpg( kstp ) ! horizontal gradient of Hydrostatic pressure |
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| 298 | !CALL timing_stop('dyn_hpg','section') |
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| 299 | |
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| 300 | !CALL dump_array(kstp,'ua_pre_bfr',ua(:,:,27), & |
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| 301 | ! withHalos=.TRUE.) |
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| 302 | |
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| 303 | !CALL timing_start('dyn_bfr') |
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| 304 | CALL dyn_bfr( kstp ) ! bottom friction |
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| 305 | !CALL timing_stop('dyn_bfr','section') |
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| 306 | |
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| 307 | !CALL dump_array(kstp,'ua_pre_zdf',ua(:,:,27), & |
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| 308 | ! withHalos=.TRUE.) |
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| 309 | |
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| 310 | !CALL timing_start('dyn_zdf') |
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| 311 | CALL dyn_zdf( kstp ) ! vertical diffusion |
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| 312 | !CALL timing_stop('dyn_zdf','section') |
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| 313 | |
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| 314 | !CALL dump_array(kstp,'ua_pre_spg',ua(:,:,27), & |
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| 315 | ! withHalos=.TRUE.) |
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| 316 | |
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| 317 | !CALL timing_start('dyn_spg') |
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| 318 | CALL dyn_spg( kstp, indic ) ! surface pressure gradient |
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| 319 | !CALL timing_stop('dyn_spg','section') |
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| 320 | !CALL dump_array(kstp,'ua_spg',ua(:,:,27), & |
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| 321 | ! withHalos=.TRUE.) |
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| 322 | |
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| 323 | !CALL timing_start('dyn_nxt') |
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| 324 | CALL dyn_nxt( kstp ) ! lateral velocity at next time step |
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| 325 | !CALL timing_stop('dyn_nxt','section') |
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| 326 | |
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| 327 | !CALL timing_stop('dyn_nxt','section') |
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| 328 | |
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| 329 | !CALL timing_start('ssh_nxt') |
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| 330 | CALL ssh_nxt( kstp ) ! sea surface height at next time step |
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| 331 | !CALL timing_stop('ssh_nxt','section') |
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| 332 | |
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| 333 | IF( ln_diahsb ) CALL dia_hsb( kstp ) ! - ML - global conservation diagnostics |
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| 334 | IF( lk_diaobs ) CALL dia_obs( kstp ) ! obs-minus-model (assimilation) diagnostics |
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| 335 | ! ! (call after dynamics update) |
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| 336 | CALL timing_stop('Dynamics','section') |
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| 337 | |
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| 338 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 339 | ! Control and restarts |
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| 340 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 341 | CALL timing_start('Control') |
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| 342 | |
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| 343 | CALL stp_ctl( kstp, indic ) |
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| 344 | IF( indic < 0 ) THEN |
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| 345 | CALL ctl_stop( 'step: indic < 0' ) |
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| 346 | CALL dia_wri_state( 'output.abort', kstp ) |
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| 347 | ENDIF |
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| 348 | IF( kstp == nit000 ) CALL iom_close( numror ) ! close input ocean restart file |
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| 349 | IF( lrst_oce ) CALL rst_write ( kstp ) ! write output ocean restart file |
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| 350 | IF( lk_obc ) CALL obc_rst_write( kstp ) ! write open boundary restart file |
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| 351 | ! ARP - no 'section' arg here so the time taken |
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| 352 | ! in this region (which can involve IO) is |
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| 353 | ! subtracted from the time |
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| 354 | ! taken to do the whole step. |
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| 355 | CALL timing_stop('Control') |
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| 356 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 357 | ! Trends (ua, va, ta, sa used as workspace) |
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| 358 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 359 | IF( nstop == 0 ) THEN |
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| 360 | IF( lk_trddyn ) CALL trd_dwr( kstp ) ! trends: dynamics |
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| 361 | IF( lk_trdtra ) CALL trd_twr( kstp ) ! trends: active tracers |
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| 362 | IF( lk_trdmld ) CALL trd_mld( kstp ) ! trends: Mixed-layer |
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| 363 | IF( lk_trdvor ) CALL trd_vor( kstp ) ! trends: vorticity budget |
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| 364 | ENDIF |
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| 365 | |
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| 366 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 367 | ! Coupled mode |
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| 368 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 369 | IF( lk_cpl ) CALL sbc_cpl_snd( kstp ) ! coupled mode : field exchanges |
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| 370 | ! |
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| 371 | CALL timing_stop('Step', 'section') |
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| 372 | |
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| 373 | ! |
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| 374 | IF( kstp == nit000 ) CALL timing_reset ! Exclude first step from timing |
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| 375 | IF( kstp == (nitend-2) ) CALL timing_disable() ! Turn off timing two steps from end to avoid the IO |
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| 376 | ! |
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| 377 | |
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| 378 | END SUBROUTINE stp |
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| 379 | |
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| 380 | !!====================================================================== |
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| 381 | END MODULE step |
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