| 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 | !! version for standalone surface scheme |
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| 6 | !!====================================================================== |
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| 7 | !! History : OPA ! 1991-03 (G. Madec) Original code |
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| 8 | !! . ! . |
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| 9 | !! . ! . |
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| 10 | !! NEMO 3.5 ! 2012-03 (S. Alderson) |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! stp : OPA system time-stepping |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE oce ! ocean dynamics and tracers variables |
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| 17 | USE dom_oce ! ocean space and time domain variables |
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| 18 | USE daymod ! calendar (day routine) |
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| 19 | USE sbc_oce ! surface boundary condition: fields |
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| 20 | USE sbcmod ! surface boundary condition (sbc routine) |
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| 21 | USE sbcrnf ! surface boundary condition: runoff variables |
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| 22 | USE sbccpl ! surface boundary condition: coupled interface |
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| 23 | USE eosbn2 ! equation of state (eos_bn2 routine) |
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| 24 | USE diawri ! Standard run outputs (dia_wri routine) |
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| 25 | USE bdy_oce , ONLY: ln_bdy |
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| 26 | USE bdydta ! clem: mandatory for LIM3 |
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| 27 | USE stpctl ! time stepping control (stp_ctl routine) |
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| 28 | ! |
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| 29 | USE in_out_manager ! I/O manager |
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| 30 | USE prtctl ! Print control (prt_ctl routine) |
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| 31 | USE iom ! |
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| 32 | USE lbclnk ! |
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| 33 | USE timing ! Timing |
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| 34 | #if defined key_iomput |
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| 35 | USE xios |
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| 36 | #endif |
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| 37 | |
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| 38 | IMPLICIT NONE |
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| 39 | PRIVATE |
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| 40 | |
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| 41 | PUBLIC stp ! called by nemogcm.F90 |
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| 42 | |
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| 43 | !!---------------------------------------------------------------------- |
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| 44 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 45 | !! $Id$ |
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| 46 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 47 | !!---------------------------------------------------------------------- |
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| 48 | CONTAINS |
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| 49 | |
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| 50 | #if defined key_agrif |
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| 51 | SUBROUTINE stp( ) |
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| 52 | INTEGER :: kstp ! ocean time-step index |
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| 53 | #else |
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| 54 | SUBROUTINE stp( kstp ) |
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| 55 | INTEGER, INTENT(in) :: kstp ! ocean time-step index |
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| 56 | #endif |
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| 57 | !!---------------------------------------------------------------------- |
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| 58 | !! *** ROUTINE stp *** |
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| 59 | !! |
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| 60 | !! ** Purpose : - Time stepping of SBC (surface boundary) |
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| 61 | !! |
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| 62 | !! ** Method : -1- Update forcings and data |
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| 63 | !! -2- Outputs and diagnostics |
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| 64 | !!---------------------------------------------------------------------- |
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| 65 | INTEGER :: indic ! error indicator if < 0 |
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| 66 | !! --------------------------------------------------------------------- |
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| 67 | |
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| 68 | #if defined key_agrif |
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| 69 | kstp = nit000 + Agrif_Nb_Step() |
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| 70 | # if defined key_iomput |
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| 71 | IF( Agrif_Nbstepint() == 0 ) CALL iom_swap( cxios_context ) |
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| 72 | # endif |
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| 73 | #endif |
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| 74 | IF( kstp == nit000 ) CALL iom_init( cxios_context ) ! iom_put initialization (must be done after nemo_init for AGRIF+XIOS+OASIS) |
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| 75 | IF( kstp /= nit000 ) CALL day( kstp ) ! Calendar (day was already called at nit000 in day_init) |
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| 76 | CALL iom_setkt( kstp - nit000 + 1, cxios_context ) ! tell iom we are at time step kstp |
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| 77 | |
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| 78 | ! ==> clem: open boundaries is mandatory for LIM3 because ice BDY is not decoupled from |
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| 79 | ! the environment of ocean BDY. Therefore bdy is called in both OPA and SAS modules. |
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| 80 | ! From SAS: ocean bdy data are wrong (but we do not care) and ice bdy data are OK. |
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| 81 | ! This is not clean and should be changed in the future. |
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| 82 | IF( ln_bdy ) CALL bdy_dta ( kstp, time_offset=+1 ) ! update dynamic & tracer data at open boundaries |
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| 83 | ! ==> |
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| 84 | CALL sbc ( kstp ) ! Sea Boundary Condition (including sea-ice) |
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| 85 | |
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| 86 | CALL dia_wri( kstp ) ! ocean model: outputs |
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| 87 | |
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| 88 | indic = 0 ! although indic is not changed in stp_ctl |
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| 89 | ! need to keep the same interface |
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| 90 | CALL stp_ctl( kstp, indic ) |
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| 91 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 92 | ! Coupled mode |
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| 93 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 94 | IF( lk_oasis ) CALL sbc_cpl_snd( kstp ) ! coupled mode : field exchanges if OASIS-coupled ice |
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| 95 | |
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| 96 | #if defined key_iomput |
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| 97 | IF( kstp == nitend .OR. indic < 0 ) THEN |
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| 98 | CALL iom_context_finalize( cxios_context ) ! needed for XIOS+AGRIF |
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| 99 | ENDIF |
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| 100 | #endif |
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| 101 | ! |
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| 102 | IF( nn_timing == 1 .AND. kstp == nit000 ) CALL timing_reset |
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| 103 | ! |
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| 104 | END SUBROUTINE stp |
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| 105 | |
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| 106 | !!====================================================================== |
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| 107 | END MODULE step |
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