[888] | 1 | MODULE sbcmod |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbcmod *** |
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| 4 | !! Surface module : provide to the ocean its surface boundary condition |
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| 5 | !!====================================================================== |
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[1218] | 6 | !! History : 3.0 ! 07-2006 (G. Madec) Original code |
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| 7 | !! - ! 08-2008 (S. Masson, E. .... ) coupled interface |
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[2093] | 8 | !! 3.3 ! 09-2010 (D. Storkey) add ice boundary conditions (BDY) |
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[888] | 9 | !!---------------------------------------------------------------------- |
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| 10 | |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! sbc_init : read namsbc namelist |
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[1037] | 13 | !! sbc : surface ocean momentum, heat and freshwater boundary conditions |
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[888] | 14 | !!---------------------------------------------------------------------- |
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| 15 | USE oce ! ocean dynamics and tracers |
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| 16 | USE dom_oce ! ocean space and time domain |
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| 17 | USE phycst ! physical constants |
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| 18 | |
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| 19 | USE sbc_oce ! Surface boundary condition: ocean fields |
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[1465] | 20 | USE sbc_ice ! Surface boundary condition: ice fields |
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[888] | 21 | USE sbcssm ! surface boundary condition: sea-surface mean variables |
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| 22 | USE sbcana ! surface boundary condition: analytical formulation |
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| 23 | USE sbcflx ! surface boundary condition: flux formulation |
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| 24 | USE sbcblk_clio ! surface boundary condition: bulk formulation : CLIO |
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| 25 | USE sbcblk_core ! surface boundary condition: bulk formulation : CORE |
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| 26 | USE sbcice_if ! surface boundary condition: ice-if sea-ice model |
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| 27 | USE sbcice_lim ! surface boundary condition: LIM 3.0 sea-ice model |
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| 28 | USE sbcice_lim_2 ! surface boundary condition: LIM 2.0 sea-ice model |
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| 29 | USE sbccpl ! surface boundary condition: coupled florulation |
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[1226] | 30 | USE cpl_oasis3, ONLY:lk_cpl ! are we in coupled mode? |
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[888] | 31 | USE sbcssr ! surface boundary condition: sea surface restoring |
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| 32 | USE sbcrnf ! surface boundary condition: runoffs |
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| 33 | USE sbcfwb ! surface boundary condition: freshwater budget |
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| 34 | USE closea ! closed sea |
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[2093] | 35 | USE bdy_par ! unstructured open boundary data variables |
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| 36 | USE bdyice ! unstructured open boundary data (bdy_ice routine) |
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[888] | 37 | |
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| 38 | USE prtctl ! Print control (prt_ctl routine) |
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| 39 | USE restart ! ocean restart |
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| 40 | USE iom |
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| 41 | USE in_out_manager ! I/O manager |
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| 42 | |
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| 43 | IMPLICIT NONE |
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| 44 | PRIVATE |
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| 45 | |
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| 46 | PUBLIC sbc ! routine called by step.F90 |
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[1725] | 47 | PUBLIC sbc_init ! routine called by opa.F90 |
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[888] | 48 | |
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| 49 | INTEGER :: nsbc ! type of surface boundary condition (deduced from namsbc informations) |
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| 50 | |
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| 51 | !! * Substitutions |
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| 52 | # include "domzgr_substitute.h90" |
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| 53 | !!---------------------------------------------------------------------- |
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[1037] | 54 | !! NEMO/OPA 3.0 , LOCEAN-IPSL (2008) |
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[1146] | 55 | !! $Id$ |
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[888] | 56 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 57 | !!---------------------------------------------------------------------- |
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| 58 | |
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| 59 | CONTAINS |
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| 60 | |
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| 61 | SUBROUTINE sbc_init |
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| 62 | !!--------------------------------------------------------------------- |
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| 63 | !! *** ROUTINE sbc_init *** |
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| 64 | !! |
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| 65 | !! ** Purpose : Initialisation of the ocean surface boundary computation |
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| 66 | !! |
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| 67 | !! ** Method : Read the namsbc namelist and set derived parameters |
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| 68 | !! |
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| 69 | !! ** Action : - read namsbc parameters |
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| 70 | !! - nsbc: type of sbc |
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| 71 | !!---------------------------------------------------------------------- |
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| 72 | INTEGER :: icpt ! temporary integer |
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[1037] | 73 | !! |
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[920] | 74 | NAMELIST/namsbc/ nn_fsbc, ln_ana, ln_flx, ln_blk_clio, ln_blk_core, ln_cpl, & |
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| 75 | & nn_ice , ln_dm2dc, ln_rnf, ln_ssr, nn_fwb, nn_ico_cpl |
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[1037] | 76 | !!---------------------------------------------------------------------- |
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[888] | 77 | |
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| 78 | IF(lwp) THEN |
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| 79 | WRITE(numout,*) |
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| 80 | WRITE(numout,*) 'sbc_init : surface boundary condition setting' |
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| 81 | WRITE(numout,*) '~~~~~~~~ ' |
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| 82 | ENDIF |
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| 83 | |
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[1218] | 84 | REWIND( numnam ) ! Read Namelist namsbc |
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| 85 | READ ( numnam, namsbc ) |
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[888] | 86 | |
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| 87 | ! overwrite namelist parameter using CPP key information |
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[1218] | 88 | !!gm here no overwrite, test all option via namelist change: require more incore memory |
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[888] | 89 | !!gm IF( lk_sbc_cpl ) THEN ; ln_cpl = .TRUE. ; ELSE ; ln_cpl = .FALSE. ; ENDIF |
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[1792] | 90 | |
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[1242] | 91 | IF ( Agrif_Root() ) THEN |
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| 92 | IF( lk_lim2 ) nn_ice = 2 |
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| 93 | IF( lk_lim3 ) nn_ice = 3 |
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| 94 | ENDIF |
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[1792] | 95 | ! |
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[888] | 96 | IF( cp_cfg == 'gyre' ) THEN |
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| 97 | ln_ana = .TRUE. |
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| 98 | nn_ice = 0 |
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| 99 | ENDIF |
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| 100 | |
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| 101 | ! Control print |
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| 102 | IF(lwp) THEN |
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[1218] | 103 | WRITE(numout,*) ' Namelist namsbc (partly overwritten with CPP key setting)' |
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[888] | 104 | WRITE(numout,*) ' frequency update of sbc (and ice) nn_fsbc = ', nn_fsbc |
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| 105 | WRITE(numout,*) ' Type of sbc : ' |
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| 106 | WRITE(numout,*) ' analytical formulation ln_ana = ', ln_ana |
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| 107 | WRITE(numout,*) ' flux formulation ln_flx = ', ln_flx |
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| 108 | WRITE(numout,*) ' CLIO bulk formulation ln_blk_clio = ', ln_blk_clio |
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[1218] | 109 | WRITE(numout,*) ' CLIO bulk formulation ln_blk_core = ', ln_blk_core |
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[888] | 110 | WRITE(numout,*) ' coupled formulation (T if key_sbc_cpl) ln_cpl = ', ln_cpl |
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| 111 | WRITE(numout,*) ' Misc. options of sbc : ' |
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[1037] | 112 | WRITE(numout,*) ' ice management in the sbc (=0/1/2/3) nn_ice = ', nn_ice |
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[918] | 113 | WRITE(numout,*) ' ice-ocean stress computation (=0/1/2) nn_ico_cpl = ', nn_ico_cpl |
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[888] | 114 | WRITE(numout,*) ' daily mean to diurnal cycle qsr ln_dm2dc = ', ln_dm2dc |
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| 115 | WRITE(numout,*) ' runoff / runoff mouths ln_rnf = ', ln_rnf |
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| 116 | WRITE(numout,*) ' Sea Surface Restoring on SST and/or SSS ln_ssr = ', ln_ssr |
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| 117 | WRITE(numout,*) ' FreshWater Budget control (=0/1/2) nn_fwb = ', nn_fwb |
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[1601] | 118 | WRITE(numout,*) ' closed sea (=0/1) (set in namdom) nn_closea = ', nn_closea |
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[888] | 119 | ENDIF |
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| 120 | |
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[1218] | 121 | IF( .NOT. ln_rnf ) THEN ! no specific treatment in vicinity of river mouths |
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| 122 | ln_rnf_mouth = .false. |
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| 123 | nkrnf = 0 |
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| 124 | rnfmsk (:,:) = 0.e0 |
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| 125 | rnfmsk_z(:) = 0.e0 |
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[1116] | 126 | ENDIF |
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[1218] | 127 | IF( nn_ice == 0 ) fr_i(:,:) = 0.e0 ! no ice in the domain, ice fraction is always zero |
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[1037] | 128 | |
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[1218] | 129 | ! ! restartability |
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| 130 | IF( MOD( nitend - nit000 + 1, nn_fsbc) /= 0 .OR. & |
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| 131 | MOD( nstock , nn_fsbc) /= 0 ) THEN |
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| 132 | WRITE(ctmp1,*) 'experiment length (', nitend - nit000 + 1, ') or nstock (', nstock, & |
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| 133 | & ' is NOT a multiple of nn_fsbc (', nn_fsbc, ')' |
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| 134 | CALL ctl_stop( ctmp1, 'Impossible to properly do model restart' ) |
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[888] | 135 | ENDIF |
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[1218] | 136 | ! |
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| 137 | IF( MOD( rday, REAL(nn_fsbc, wp) * rdt ) /= 0 ) & |
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| 138 | & CALL ctl_warn( 'nn_fsbc is NOT a multiple of the number of time steps in a day' ) |
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| 139 | ! |
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[1226] | 140 | IF( nn_ice == 2 .AND. .NOT.( ln_blk_clio .OR. ln_blk_core .OR. lk_cpl ) ) & |
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| 141 | & CALL ctl_stop( 'sea-ice model requires a bulk formulation or coupled configuration' ) |
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[888] | 142 | |
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| 143 | ! Choice of the Surface Boudary Condition (set nsbc) |
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| 144 | icpt = 0 |
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| 145 | IF( ln_ana ) THEN ; nsbc = 1 ; icpt = icpt + 1 ; ENDIF ! analytical formulation |
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| 146 | IF( ln_flx ) THEN ; nsbc = 2 ; icpt = icpt + 1 ; ENDIF ! flux formulation |
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| 147 | IF( ln_blk_clio ) THEN ; nsbc = 3 ; icpt = icpt + 1 ; ENDIF ! CLIO bulk formulation |
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| 148 | IF( ln_blk_core ) THEN ; nsbc = 4 ; icpt = icpt + 1 ; ENDIF ! CORE bulk formulation |
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| 149 | IF( ln_cpl ) THEN ; nsbc = 5 ; icpt = icpt + 1 ; ENDIF ! Coupled formulation |
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| 150 | IF( cp_cfg == 'gyre') THEN ; nsbc = 0 ; ENDIF ! GYRE analytical formulation |
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| 151 | IF( lk_esopa ) nsbc = -1 ! esopa test, ALL formulations |
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| 152 | |
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| 153 | IF( icpt /= 1 .AND. .NOT.lk_esopa ) THEN |
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| 154 | WRITE(numout,*) |
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| 155 | WRITE(numout,*) ' E R R O R in setting the sbc, one and only one namelist/CPP key option ' |
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| 156 | WRITE(numout,*) ' must be choosen. You choose ', icpt, ' option(s)' |
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| 157 | WRITE(numout,*) ' We stop' |
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| 158 | nstop = nstop + 1 |
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| 159 | ENDIF |
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| 160 | IF(lwp) THEN |
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| 161 | WRITE(numout,*) |
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| 162 | IF( nsbc == -1 ) WRITE(numout,*) ' ESOPA test All surface boundary conditions' |
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| 163 | IF( nsbc == 0 ) WRITE(numout,*) ' GYRE analytical formulation' |
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| 164 | IF( nsbc == 1 ) WRITE(numout,*) ' analytical formulation' |
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| 165 | IF( nsbc == 2 ) WRITE(numout,*) ' flux formulation' |
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| 166 | IF( nsbc == 3 ) WRITE(numout,*) ' CLIO bulk formulation' |
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| 167 | IF( nsbc == 4 ) WRITE(numout,*) ' CORE bulk formulation' |
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| 168 | IF( nsbc == 5 ) WRITE(numout,*) ' coupled formulation' |
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| 169 | ENDIF |
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| 170 | ! |
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| 171 | END SUBROUTINE sbc_init |
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| 172 | |
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| 173 | |
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| 174 | SUBROUTINE sbc( kt ) |
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| 175 | !!--------------------------------------------------------------------- |
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| 176 | !! *** ROUTINE sbc *** |
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| 177 | !! |
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| 178 | !! ** Purpose : provide at each time-step the ocean surface boundary |
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| 179 | !! condition (momentum, heat and freshwater fluxes) |
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| 180 | !! |
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| 181 | !! ** Method : blah blah to be written ????????? |
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| 182 | !! CAUTION : never mask the surface stress field (tke sbc) |
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| 183 | !! |
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| 184 | !! ** Action : - set the ocean surface boundary condition, i.e. |
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| 185 | !! utau, vtau, qns, qsr, emp, emps, qrp, erp |
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[1037] | 186 | !! - updte the ice fraction : fr_i |
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[888] | 187 | !!---------------------------------------------------------------------- |
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| 188 | INTEGER, INTENT(in) :: kt ! ocean time step |
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| 189 | !!--------------------------------------------------------------------- |
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| 190 | |
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[1482] | 191 | CALL iom_setkt( kt + nn_fsbc - 1 ) ! in sbc, iom_put is called every nn_fsbc time step |
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| 192 | ! |
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[888] | 193 | ! ocean to sbc mean sea surface variables (ss._m) |
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| 194 | ! --------------------------------------- |
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| 195 | CALL sbc_ssm( kt ) ! sea surface mean currents (at U- and V-points), |
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| 196 | ! ! temperature and salinity (at T-point) over nf_sbc time-step |
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| 197 | ! ! (i.e. sst_m, sss_m, ssu_m, ssv_m) |
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| 198 | |
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| 199 | ! sbc formulation |
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| 200 | ! --------------- |
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| 201 | |
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| 202 | SELECT CASE( nsbc ) ! Compute ocean surface boundary condition |
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| 203 | ! ! (i.e. utau,vtau, qns, qsr, emp, emps) |
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[1218] | 204 | CASE( 0 ) ; CALL sbc_gyre ( kt ) ! analytical formulation : GYRE configuration |
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| 205 | CASE( 1 ) ; CALL sbc_ana ( kt ) ! analytical formulation : uniform sbc |
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| 206 | CASE( 2 ) ; CALL sbc_flx ( kt ) ! flux formulation |
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| 207 | CASE( 3 ) ; CALL sbc_blk_clio( kt ) ! bulk formulation : CLIO for the ocean |
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| 208 | CASE( 4 ) ; CALL sbc_blk_core( kt ) ! bulk formulation : CORE for the ocean |
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| 209 | CASE( 5 ) ; CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) ! coupled formulation |
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[888] | 210 | CASE( -1 ) |
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[1226] | 211 | CALL sbc_ana ( kt ) ! ESOPA, test ALL the formulations |
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| 212 | CALL sbc_gyre ( kt ) ! |
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| 213 | CALL sbc_flx ( kt ) ! |
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| 214 | CALL sbc_blk_clio( kt ) ! |
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| 215 | CALL sbc_blk_core( kt ) ! |
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| 216 | CALL sbc_cpl_rcv ( kt, nn_fsbc, nn_ice ) ! |
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[888] | 217 | END SELECT |
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| 218 | |
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| 219 | ! Misc. Options |
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| 220 | ! ------------- |
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| 221 | |
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| 222 | !!gm IF( ln_dm2dc ) CALL sbc_dcy( kt ) ! Daily mean qsr distributed over the Diurnal Cycle |
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| 223 | |
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[1218] | 224 | SELECT CASE( nn_ice ) ! Update heat and freshwater fluxes over sea-ice areas |
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| 225 | CASE( 1 ) ; CALL sbc_ice_if ( kt ) ! Ice-cover climatology ("Ice-if" model) |
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[1037] | 226 | ! |
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| 227 | CASE( 2 ) ; CALL sbc_ice_lim_2( kt, nsbc ) ! LIM 2.0 ice model |
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[2093] | 228 | IF( lk_bdy ) CALL bdy_ice( kt ) |
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[1037] | 229 | ! |
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| 230 | CASE( 3 ) ; CALL sbc_ice_lim ( kt, nsbc, nn_ico_cpl) ! LIM 3.0 ice model |
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| 231 | END SELECT |
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[888] | 232 | |
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[1061] | 233 | IF( ln_rnf ) CALL sbc_rnf( kt ) ! add runoffs to fresh water fluxes |
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| 234 | |
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[1037] | 235 | IF( ln_ssr ) CALL sbc_ssr( kt ) ! add SST/SSS damping term |
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[888] | 236 | |
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[1037] | 237 | IF( nn_fwb /= 0 ) CALL sbc_fwb( kt, nn_fwb, nn_fsbc ) ! control the freshwater budget |
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[888] | 238 | |
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| 239 | IF( nclosea == 1 ) CALL sbc_clo( kt ) ! treatment of closed sea in the model domain |
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| 240 | ! ! (update freshwater fluxes) |
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| 241 | ! |
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[1482] | 242 | IF( MOD( kt-1, nn_fsbc ) == 0 ) THEN |
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| 243 | CALL iom_put( "emp" , emp ) ! upward water flux |
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| 244 | CALL iom_put( "emps" , emps ) ! c/d water flux |
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| 245 | CALL iom_put( "qns+qsr", qns + qsr ) ! total heat flux (caution if ln_dm2dc=true, to be |
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| 246 | CALL iom_put( "qns" , qns ) ! solar heat flux moved after the call to iom_setkt) |
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| 247 | CALL iom_put( "qsr" , qsr ) ! solar heat flux moved after the call to iom_setkt) |
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| 248 | IF( nn_ice > 0 ) CALL iom_put( "ice_cover", fr_i ) ! ice fraction |
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| 249 | ENDIF |
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| 250 | ! |
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| 251 | CALL iom_setkt( kt ) ! iom_put outside of sbc is called at every time step |
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| 252 | ! |
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| 253 | CALL iom_put( "utau", utau ) ! i-wind stress (stress can be updated at |
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| 254 | CALL iom_put( "vtau", vtau ) ! j-wind stress each time step in sea-ice) |
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[1705] | 255 | CALL iom_put( "taum", taum ) ! wind stress module |
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| 256 | CALL iom_put( "wspd", wndm ) ! wind speed module |
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[1482] | 257 | ! |
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[888] | 258 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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[1037] | 259 | CALL prt_ctl(tab2d_1=fr_i , clinfo1=' fr_i - : ', mask1=tmask, ovlap=1 ) |
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| 260 | CALL prt_ctl(tab2d_1=emp , clinfo1=' emp - : ', mask1=tmask, ovlap=1 ) |
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| 261 | CALL prt_ctl(tab2d_1=emps , clinfo1=' emps - : ', mask1=tmask, ovlap=1 ) |
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| 262 | CALL prt_ctl(tab2d_1=qns , clinfo1=' qns - : ', mask1=tmask, ovlap=1 ) |
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| 263 | CALL prt_ctl(tab2d_1=qsr , clinfo1=' qsr - : ', mask1=tmask, ovlap=1 ) |
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| 264 | CALL prt_ctl(tab3d_1=tmask , clinfo1=' tmask : ', mask1=tmask, ovlap=1, kdim=jpk ) |
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| 265 | CALL prt_ctl(tab3d_1=tn , clinfo1=' sst - : ', mask1=tmask, ovlap=1, kdim=1 ) |
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| 266 | CALL prt_ctl(tab3d_1=sn , clinfo1=' sss - : ', mask1=tmask, ovlap=1, kdim=1 ) |
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| 267 | CALL prt_ctl(tab2d_1=utau , clinfo1=' utau - : ', mask1=umask, & |
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| 268 | & tab2d_2=vtau , clinfo2=' vtau - : ', mask2=vmask, ovlap=1 ) |
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[888] | 269 | ENDIF |
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| 270 | ! |
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| 271 | END SUBROUTINE sbc |
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| 272 | |
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| 273 | !!====================================================================== |
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| 274 | END MODULE sbcmod |
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