[3] | 1 | MODULE trasbc |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE trasbc *** |
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| 4 | !! Ocean active tracers: surface boundary condition |
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| 5 | !!============================================================================== |
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[2528] | 6 | !! History : OPA ! 1998-10 (G. Madec, G. Roullet, M. Imbard) Original code |
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| 7 | !! 8.2 ! 2001-02 (D. Ludicone) sea ice and free surface |
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| 8 | !! NEMO 1.0 ! 2002-06 (G. Madec) F90: Free form and module |
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| 9 | !! 3.3 ! 2010-04 (M. Leclair, G. Madec) Forcing averaged over 2 time steps |
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| 10 | !! - ! 2010-09 (C. Ethe, G. Madec) Merge TRA-TRC |
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[5120] | 11 | !! 3.6 ! 2014-11 (P. Mathiot) isf melting forcing |
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[12377] | 12 | !! 4.1 ! 2019-09 (P. Mathiot) isf moved in traisf |
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[3] | 13 | !!---------------------------------------------------------------------- |
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[503] | 14 | |
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| 15 | !!---------------------------------------------------------------------- |
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[6140] | 16 | !! tra_sbc : update the tracer trend at ocean surface |
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[3] | 17 | !!---------------------------------------------------------------------- |
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[6140] | 18 | USE oce ! ocean dynamics and active tracers |
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| 19 | USE sbc_oce ! surface boundary condition: ocean |
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| 20 | USE dom_oce ! ocean space domain variables |
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[13518] | 21 | ! TEMP: This change not necessary after trd_tra is tiled |
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| 22 | USE domain, ONLY : dom_tile |
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[6140] | 23 | USE phycst ! physical constant |
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| 24 | USE eosbn2 ! Equation Of State |
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| 25 | USE sbcmod ! ln_rnf |
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| 26 | USE sbcrnf ! River runoff |
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| 27 | USE traqsr ! solar radiation penetration |
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| 28 | USE trd_oce ! trends: ocean variables |
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| 29 | USE trdtra ! trends manager: tracers |
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[9023] | 30 | #if defined key_asminc |
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| 31 | USE asminc ! Assimilation increment |
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| 32 | #endif |
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[4990] | 33 | ! |
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[6140] | 34 | USE in_out_manager ! I/O manager |
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| 35 | USE prtctl ! Print control |
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| 36 | USE iom ! xIOS server |
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| 37 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 38 | USE timing ! Timing |
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[3] | 39 | |
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| 40 | IMPLICIT NONE |
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| 41 | PRIVATE |
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| 42 | |
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[6140] | 43 | PUBLIC tra_sbc ! routine called by step.F90 |
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[3] | 44 | |
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| 45 | !! * Substitutions |
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[12377] | 46 | # include "do_loop_substitute.h90" |
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[13237] | 47 | # include "domzgr_substitute.h90" |
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[3] | 48 | !!---------------------------------------------------------------------- |
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[9598] | 49 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[888] | 50 | !! $Id$ |
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[10068] | 51 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[3] | 52 | !!---------------------------------------------------------------------- |
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| 53 | CONTAINS |
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| 54 | |
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[12377] | 55 | SUBROUTINE tra_sbc ( kt, Kmm, pts, Krhs ) |
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[3] | 56 | !!---------------------------------------------------------------------- |
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| 57 | !! *** ROUTINE tra_sbc *** |
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| 58 | !! |
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| 59 | !! ** Purpose : Compute the tracer surface boundary condition trend of |
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| 60 | !! (flux through the interface, concentration/dilution effect) |
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| 61 | !! and add it to the general trend of tracer equations. |
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| 62 | !! |
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[6140] | 63 | !! ** Method : The (air+ice)-sea flux has two components: |
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| 64 | !! (1) Fext, external forcing (i.e. flux through the (air+ice)-sea interface); |
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| 65 | !! (2) Fwe , tracer carried with the water that is exchanged with air+ice. |
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[12377] | 66 | !! The input forcing fields (emp, rnf, sfx) contain Fext+Fwe, |
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| 67 | !! they are simply added to the tracer trend (ts(Krhs)). |
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[6140] | 68 | !! In linear free surface case (ln_linssh=T), the volume of the |
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| 69 | !! ocean does not change with the water exchanges at the (air+ice)-sea |
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| 70 | !! interface. Therefore another term has to be added, to mimic the |
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| 71 | !! concentration/dilution effect associated with water exchanges. |
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[664] | 72 | !! |
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[12377] | 73 | !! ** Action : - Update ts(Krhs) with the surface boundary condition trend |
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[6140] | 74 | !! - send trends to trdtra module for further diagnostics(l_trdtra=T) |
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[503] | 75 | !!---------------------------------------------------------------------- |
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[12377] | 76 | INTEGER, INTENT(in ) :: kt ! ocean time-step index |
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| 77 | INTEGER, INTENT(in ) :: Kmm, Krhs ! time level indices |
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| 78 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers and RHS of tracer equation |
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[6140] | 79 | ! |
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[9023] | 80 | INTEGER :: ji, jj, jk, jn ! dummy loop indices |
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| 81 | INTEGER :: ikt, ikb ! local integers |
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| 82 | REAL(wp) :: zfact, z1_e3t, zdep, ztim ! local scalar |
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[13518] | 83 | ! TEMP: This change not necessary after trd_tra is tiled |
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| 84 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: ztrdt, ztrds |
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[3] | 85 | !!---------------------------------------------------------------------- |
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[3294] | 86 | ! |
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[9019] | 87 | IF( ln_timing ) CALL timing_start('tra_sbc') |
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[3294] | 88 | ! |
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[13518] | 89 | IF( ntile == 0 .OR. ntile == 1 ) THEN ! Do only on the first tile |
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| 90 | IF( kt == nit000 ) THEN |
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| 91 | IF(lwp) WRITE(numout,*) |
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| 92 | IF(lwp) WRITE(numout,*) 'tra_sbc : TRAcer Surface Boundary Condition' |
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| 93 | IF(lwp) WRITE(numout,*) '~~~~~~~ ' |
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| 94 | ENDIF |
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[3] | 95 | ENDIF |
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[6140] | 96 | ! |
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[4990] | 97 | IF( l_trdtra ) THEN !* Save ta and sa trends |
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[13518] | 98 | IF( ntile == 0 .OR. ntile == 1 ) THEN ! Do only on the first tile |
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| 99 | ! TEMP: This can be ST_2D(nn_hls) after trd_tra is tiled |
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| 100 | ALLOCATE( ztrdt(jpi,jpj,jpk), ztrds(jpi,jpj,jpk) ) |
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| 101 | ENDIF |
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| 102 | |
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| 103 | DO_3D( 0, 0, 0, 0, 1, jpk ) |
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| 104 | ztrdt(ji,jj,jk) = pts(ji,jj,jk,jp_tem,Krhs) |
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| 105 | ztrds(ji,jj,jk) = pts(ji,jj,jk,jp_sal,Krhs) |
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| 106 | END_3D |
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[216] | 107 | ENDIF |
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[6140] | 108 | ! |
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| 109 | !!gm This should be moved into sbcmod.F90 module ? (especially now that ln_traqsr is read in namsbc namelist) |
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[2528] | 110 | IF( .NOT.ln_traqsr ) THEN ! no solar radiation penetration |
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[13518] | 111 | DO_2D( 0, 0, 0, 0 ) |
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| 112 | qns(ji,jj) = qns(ji,jj) + qsr(ji,jj) ! total heat flux in qns |
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| 113 | qsr(ji,jj) = 0._wp ! qsr set to zero |
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| 114 | END_2D |
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[2528] | 115 | ENDIF |
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[3] | 116 | |
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[2528] | 117 | !---------------------------------------- |
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[4990] | 118 | ! EMP, SFX and QNS effects |
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[2528] | 119 | !---------------------------------------- |
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[6140] | 120 | ! !== Set before sbc tracer content fields ==! |
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| 121 | IF( kt == nit000 ) THEN !* 1st time-step |
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| 122 | IF( ln_rstart .AND. & ! Restart: read in restart file |
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[2528] | 123 | & iom_varid( numror, 'sbc_hc_b', ldstop = .FALSE. ) > 0 ) THEN |
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[4990] | 124 | zfact = 0.5_wp |
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[13518] | 125 | IF( ntile == 0 .OR. ntile == 1 ) THEN ! Do only on the first tile |
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| 126 | IF(lwp) WRITE(numout,*) ' nit000-1 sbc tracer content field read in the restart file' |
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| 127 | sbc_tsc(:,:,:) = 0._wp |
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| 128 | CALL iom_get( numror, jpdom_auto, 'sbc_hc_b', sbc_tsc_b(:,:,jp_tem), ldxios = lrxios ) ! before heat content sbc trend |
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| 129 | CALL iom_get( numror, jpdom_auto, 'sbc_sc_b', sbc_tsc_b(:,:,jp_sal), ldxios = lrxios ) ! before salt content sbc trend |
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| 130 | ENDIF |
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[6140] | 131 | ELSE ! No restart or restart not found: Euler forward time stepping |
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[4990] | 132 | zfact = 1._wp |
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[13518] | 133 | DO_2D( 0, 0, 0, 0 ) |
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| 134 | sbc_tsc(ji,jj,:) = 0._wp |
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| 135 | sbc_tsc_b(ji,jj,:) = 0._wp |
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| 136 | END_2D |
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[2528] | 137 | ENDIF |
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[6140] | 138 | ELSE !* other time-steps: swap of forcing fields |
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[4990] | 139 | zfact = 0.5_wp |
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[13518] | 140 | DO_2D( 0, 0, 0, 0 ) |
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| 141 | sbc_tsc_b(ji,jj,:) = sbc_tsc(ji,jj,:) |
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| 142 | END_2D |
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[2528] | 143 | ENDIF |
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[6140] | 144 | ! !== Now sbc tracer content fields ==! |
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[13518] | 145 | DO_2D( 0, 0, 0, 0 ) |
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[12489] | 146 | sbc_tsc(ji,jj,jp_tem) = r1_rho0_rcp * qns(ji,jj) ! non solar heat flux |
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| 147 | sbc_tsc(ji,jj,jp_sal) = r1_rho0 * sfx(ji,jj) ! salt flux due to freezing/melting |
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[12377] | 148 | END_2D |
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[6140] | 149 | IF( ln_linssh ) THEN !* linear free surface |
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[13518] | 150 | DO_2D( 0, 0, 0, 0 ) |
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[12489] | 151 | sbc_tsc(ji,jj,jp_tem) = sbc_tsc(ji,jj,jp_tem) + r1_rho0 * emp(ji,jj) * pts(ji,jj,1,jp_tem,Kmm) |
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| 152 | sbc_tsc(ji,jj,jp_sal) = sbc_tsc(ji,jj,jp_sal) + r1_rho0 * emp(ji,jj) * pts(ji,jj,1,jp_sal,Kmm) |
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[12377] | 153 | END_2D |
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[13518] | 154 | IF( ntile == 0 .OR. ntile == nijtile ) THEN ! Do only on the last tile |
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| 155 | IF( iom_use('emp_x_sst') ) CALL iom_put( "emp_x_sst", emp (:,:) * pts(:,:,1,jp_tem,Kmm) ) |
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| 156 | IF( iom_use('emp_x_sss') ) CALL iom_put( "emp_x_sss", emp (:,:) * pts(:,:,1,jp_sal,Kmm) ) |
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| 157 | ENDIF |
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[2528] | 158 | ENDIF |
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[6140] | 159 | ! |
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| 160 | DO jn = 1, jpts !== update tracer trend ==! |
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[13518] | 161 | DO_2D( 0, 0, 0, 0 ) |
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| 162 | pts(ji,jj,1,jn,Krhs) = pts(ji,jj,1,jn,Krhs) + zfact * ( sbc_tsc_b(ji,jj,jn) + sbc_tsc(ji,jj,jn) ) / e3t(ji,jj,1,Kmm) |
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[12377] | 163 | END_2D |
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[3] | 164 | END DO |
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[6140] | 165 | ! |
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[13518] | 166 | IF( ntile == 0 .OR. ntile == nijtile ) THEN ! Do only on the last tile |
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| 167 | IF( lrst_oce ) THEN !== write sbc_tsc in the ocean restart file ==! |
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| 168 | IF( lwxios ) CALL iom_swap( cwxios_context ) |
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| 169 | CALL iom_rstput( kt, nitrst, numrow, 'sbc_hc_b', sbc_tsc(:,:,jp_tem), ldxios = lwxios ) |
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| 170 | CALL iom_rstput( kt, nitrst, numrow, 'sbc_sc_b', sbc_tsc(:,:,jp_sal), ldxios = lwxios ) |
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| 171 | IF( lwxios ) CALL iom_swap( cxios_context ) |
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| 172 | ENDIF |
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[2528] | 173 | ENDIF |
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| 174 | ! |
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| 175 | !---------------------------------------- |
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| 176 | ! River Runoff effects |
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| 177 | !---------------------------------------- |
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| 178 | ! |
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[3764] | 179 | IF( ln_rnf ) THEN ! input of heat and salt due to river runoff |
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| 180 | zfact = 0.5_wp |
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[13518] | 181 | DO_2D( 0, 0, 0, 0 ) |
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[12377] | 182 | IF( rnf(ji,jj) /= 0._wp ) THEN |
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| 183 | zdep = zfact / h_rnf(ji,jj) |
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| 184 | DO jk = 1, nk_rnf(ji,jj) |
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| 185 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) & |
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| 186 | & + ( rnf_tsc_b(ji,jj,jp_tem) + rnf_tsc(ji,jj,jp_tem) ) * zdep |
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| 187 | IF( ln_rnf_sal ) pts(ji,jj,jk,jp_sal,Krhs) = pts(ji,jj,jk,jp_sal,Krhs) & |
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| 188 | & + ( rnf_tsc_b(ji,jj,jp_sal) + rnf_tsc(ji,jj,jp_sal) ) * zdep |
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| 189 | END DO |
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| 190 | ENDIF |
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| 191 | END_2D |
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[3764] | 192 | ENDIF |
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[6472] | 193 | |
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[13518] | 194 | IF( ntile == 0 .OR. ntile == 1 ) THEN ! Do only on the first tile |
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| 195 | IF( iom_use('rnf_x_sst') ) CALL iom_put( "rnf_x_sst", rnf*pts(:,:,1,jp_tem,Kmm) ) ! runoff term on sst |
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| 196 | IF( iom_use('rnf_x_sss') ) CALL iom_put( "rnf_x_sss", rnf*pts(:,:,1,jp_sal,Kmm) ) ! runoff term on sss |
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| 197 | ENDIF |
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[6472] | 198 | |
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[9023] | 199 | #if defined key_asminc |
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[6140] | 200 | ! |
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| 201 | !---------------------------------------- |
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[9023] | 202 | ! Assmilation effects |
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| 203 | !---------------------------------------- |
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| 204 | ! |
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| 205 | IF( ln_sshinc ) THEN ! input of heat and salt due to assimilation |
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| 206 | ! |
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| 207 | IF( ln_linssh ) THEN |
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[13518] | 208 | DO_2D( 0, 0, 0, 0 ) |
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[12377] | 209 | ztim = ssh_iau(ji,jj) / e3t(ji,jj,1,Kmm) |
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| 210 | pts(ji,jj,1,jp_tem,Krhs) = pts(ji,jj,1,jp_tem,Krhs) + pts(ji,jj,1,jp_tem,Kmm) * ztim |
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| 211 | pts(ji,jj,1,jp_sal,Krhs) = pts(ji,jj,1,jp_sal,Krhs) + pts(ji,jj,1,jp_sal,Kmm) * ztim |
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| 212 | END_2D |
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[9023] | 213 | ELSE |
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[13518] | 214 | DO_2D( 0, 0, 0, 0 ) |
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[12377] | 215 | ztim = ssh_iau(ji,jj) / ( ht(ji,jj) + 1. - ssmask(ji, jj) ) |
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| 216 | pts(ji,jj,:,jp_tem,Krhs) = pts(ji,jj,:,jp_tem,Krhs) + pts(ji,jj,:,jp_tem,Kmm) * ztim |
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| 217 | pts(ji,jj,:,jp_sal,Krhs) = pts(ji,jj,:,jp_sal,Krhs) + pts(ji,jj,:,jp_sal,Kmm) * ztim |
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| 218 | END_2D |
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[9023] | 219 | ENDIF |
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| 220 | ! |
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| 221 | ENDIF |
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| 222 | ! |
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| 223 | #endif |
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| 224 | ! |
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[13518] | 225 | ! TEMP: These changes not necessary after trd_tra is tiled |
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[6140] | 226 | IF( l_trdtra ) THEN ! save the horizontal diffusive trends for further diagnostics |
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[13518] | 227 | DO_3D( 0, 0, 0, 0, 1, jpk ) |
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| 228 | ztrdt(ji,jj,jk) = pts(ji,jj,jk,jp_tem,Krhs) - ztrdt(ji,jj,jk) |
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| 229 | ztrds(ji,jj,jk) = pts(ji,jj,jk,jp_sal,Krhs) - ztrds(ji,jj,jk) |
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| 230 | END_3D |
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| 231 | |
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| 232 | IF( ntile == 0 .OR. ntile == nijtile ) THEN ! Do only for the full domain |
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| 233 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = 0 ) ! Use full domain |
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| 234 | |
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| 235 | ! TODO: TO BE TILED- trd_tra |
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| 236 | CALL trd_tra( kt, Kmm, Krhs, 'TRA', jp_tem, jptra_nsr, ztrdt ) |
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| 237 | CALL trd_tra( kt, Kmm, Krhs, 'TRA', jp_sal, jptra_nsr, ztrds ) |
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| 238 | DEALLOCATE( ztrdt , ztrds ) |
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| 239 | |
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| 240 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = nijtile ) ! Revert to tile domain |
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| 241 | ENDIF |
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[216] | 242 | ENDIF |
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[503] | 243 | ! |
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[12377] | 244 | IF(sn_cfctl%l_prtctl) CALL prt_ctl( tab3d_1=pts(:,:,:,jp_tem,Krhs), clinfo1=' sbc - Ta: ', mask1=tmask, & |
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| 245 | & tab3d_2=pts(:,:,:,jp_sal,Krhs), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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[503] | 246 | ! |
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[9019] | 247 | IF( ln_timing ) CALL timing_stop('tra_sbc') |
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[3294] | 248 | ! |
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[3] | 249 | END SUBROUTINE tra_sbc |
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| 250 | |
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| 251 | !!====================================================================== |
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| 252 | END MODULE trasbc |
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