[911] | 1 | MODULE bdytra |
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[1125] | 2 | !!====================================================================== |
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[911] | 3 | !! *** MODULE bdytra *** |
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[3294] | 4 | !! Ocean tracers: Apply boundary conditions for tracers |
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[1125] | 5 | !!====================================================================== |
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| 6 | !! History : 1.0 ! 2005-01 (J. Chanut, A. Sellar) Original code |
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| 7 | !! 3.0 ! 2008-04 (NEMO team) add in the reference version |
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[3294] | 8 | !! 3.4 ! 2011 (D. Storkey) rewrite in preparation for OBC-BDY merge |
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[3680] | 9 | !! 3.5 ! 2012 (S. Mocavero, I. Epicoco) Optimization of BDY communications |
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[1125] | 10 | !!---------------------------------------------------------------------- |
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[911] | 11 | #if defined key_bdy |
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[1125] | 12 | !!---------------------------------------------------------------------- |
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| 13 | !! 'key_bdy' Unstructured Open Boundary Conditions |
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| 14 | !!---------------------------------------------------------------------- |
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[3294] | 15 | !! bdy_tra : Apply open boundary conditions to T and S |
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| 16 | !! bdy_tra_frs : Apply Flow Relaxation Scheme |
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[1125] | 17 | !!---------------------------------------------------------------------- |
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[6004] | 18 | USE oce ! ocean dynamics and tracers variables |
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| 19 | USE dom_oce ! ocean space and time domain variables |
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| 20 | USE bdy_oce ! ocean open boundary conditions |
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| 21 | USE bdylib ! for orlanski library routines |
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| 22 | USE bdydta , ONLY: bf ! |
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| 23 | ! |
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| 24 | USE in_out_manager ! I/O manager |
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| 25 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 26 | USE timing ! Timing |
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[911] | 27 | |
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| 28 | IMPLICIT NONE |
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| 29 | PRIVATE |
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| 30 | |
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[6004] | 31 | PUBLIC bdy_tra ! called in tranxt.F90 |
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| 32 | PUBLIC bdy_tra_dmp ! called in step.F90 |
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[911] | 33 | |
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[1125] | 34 | !!---------------------------------------------------------------------- |
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[2528] | 35 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[1146] | 36 | !! $Id$ |
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[2528] | 37 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[1125] | 38 | !!---------------------------------------------------------------------- |
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[911] | 39 | CONTAINS |
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| 40 | |
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[3294] | 41 | SUBROUTINE bdy_tra( kt ) |
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[1125] | 42 | !!---------------------------------------------------------------------- |
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[3294] | 43 | !! *** SUBROUTINE bdy_tra *** |
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| 44 | !! |
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| 45 | !! ** Purpose : - Apply open boundary conditions for temperature and salinity |
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| 46 | !! |
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| 47 | !!---------------------------------------------------------------------- |
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[6004] | 48 | INTEGER, INTENT(in) :: kt ! Main time step counter |
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| 49 | ! |
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| 50 | INTEGER :: ib_bdy ! Loop index |
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| 51 | !!---------------------------------------------------------------------- |
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[3294] | 52 | |
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| 53 | DO ib_bdy=1, nb_bdy |
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[6004] | 54 | ! |
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[4292] | 55 | SELECT CASE( cn_tra(ib_bdy) ) |
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[6004] | 56 | CASE('none' ) ; CYCLE |
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| 57 | CASE('frs' ) ; CALL bdy_tra_frs ( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt ) |
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| 58 | CASE('specified' ) ; CALL bdy_tra_spe ( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt ) |
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| 59 | CASE('neumann' ) ; CALL bdy_tra_nmn ( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt ) |
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| 60 | CASE('orlanski' ) ; CALL bdy_tra_orlanski( idx_bdy(ib_bdy), dta_bdy(ib_bdy), ll_npo=.false. ) |
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| 61 | CASE('orlanski_npo') ; CALL bdy_tra_orlanski( idx_bdy(ib_bdy), dta_bdy(ib_bdy), ll_npo=.true. ) |
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| 62 | CASE('runoff' ) ; CALL bdy_tra_rnf ( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt ) |
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| 63 | CASE DEFAULT ; CALL ctl_stop( 'bdy_tra : unrecognised option for open boundaries for T and S' ) |
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[3294] | 64 | END SELECT |
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[3777] | 65 | ! Boundary points should be updated |
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| 66 | CALL lbc_bdy_lnk( tsa(:,:,:,jp_tem), 'T', 1., ib_bdy ) |
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| 67 | CALL lbc_bdy_lnk( tsa(:,:,:,jp_sal), 'T', 1., ib_bdy ) |
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[6004] | 68 | END DO |
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[3651] | 69 | ! |
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[3294] | 70 | END SUBROUTINE bdy_tra |
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| 71 | |
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[6004] | 72 | |
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[3777] | 73 | SUBROUTINE bdy_tra_frs( idx, dta, kt ) |
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[3294] | 74 | !!---------------------------------------------------------------------- |
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[2528] | 75 | !! *** SUBROUTINE bdy_tra_frs *** |
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[911] | 76 | !! |
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[3294] | 77 | !! ** Purpose : Apply the Flow Relaxation Scheme for tracers at open boundaries. |
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[911] | 78 | !! |
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[1125] | 79 | !! Reference : Engedahl H., 1995, Tellus, 365-382. |
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| 80 | !!---------------------------------------------------------------------- |
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[6004] | 81 | INTEGER, INTENT(in) :: kt ! |
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| 82 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 83 | TYPE(OBC_DATA), INTENT(in) :: dta ! OBC external data |
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| 84 | ! |
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[1125] | 85 | REAL(wp) :: zwgt ! boundary weight |
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| 86 | INTEGER :: ib, ik, igrd ! dummy loop indices |
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| 87 | INTEGER :: ii, ij ! 2D addresses |
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| 88 | !!---------------------------------------------------------------------- |
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| 89 | ! |
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[6004] | 90 | IF( nn_timing == 1 ) CALL timing_start('bdy_tra_frs') |
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[1125] | 91 | ! |
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[3294] | 92 | igrd = 1 ! Everything is at T-points here |
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| 93 | DO ib = 1, idx%nblen(igrd) |
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| 94 | DO ik = 1, jpkm1 |
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| 95 | ii = idx%nbi(ib,igrd) |
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| 96 | ij = idx%nbj(ib,igrd) |
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| 97 | zwgt = idx%nbw(ib,igrd) |
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| 98 | tsa(ii,ij,ik,jp_tem) = ( tsa(ii,ij,ik,jp_tem) + zwgt * ( dta%tem(ib,ik) - tsa(ii,ij,ik,jp_tem) ) ) * tmask(ii,ij,ik) |
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| 99 | tsa(ii,ij,ik,jp_sal) = ( tsa(ii,ij,ik,jp_sal) + zwgt * ( dta%sal(ib,ik) - tsa(ii,ij,ik,jp_sal) ) ) * tmask(ii,ij,ik) |
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| 100 | END DO |
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| 101 | END DO |
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| 102 | ! |
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[6004] | 103 | IF( kt .eq. nit000 ) CLOSE( unit = 102 ) |
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[3294] | 104 | ! |
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[6004] | 105 | IF( nn_timing == 1 ) CALL timing_stop('bdy_tra_frs') |
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[3294] | 106 | ! |
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[2528] | 107 | END SUBROUTINE bdy_tra_frs |
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[6004] | 108 | |
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| 109 | |
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[3651] | 110 | SUBROUTINE bdy_tra_spe( idx, dta, kt ) |
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| 111 | !!---------------------------------------------------------------------- |
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| 112 | !! *** SUBROUTINE bdy_tra_frs *** |
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| 113 | !! |
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| 114 | !! ** Purpose : Apply a specified value for tracers at open boundaries. |
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| 115 | !! |
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| 116 | !!---------------------------------------------------------------------- |
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[6004] | 117 | INTEGER, INTENT(in) :: kt ! |
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| 118 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 119 | TYPE(OBC_DATA), INTENT(in) :: dta ! OBC external data |
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| 120 | ! |
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[3651] | 121 | REAL(wp) :: zwgt ! boundary weight |
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| 122 | INTEGER :: ib, ik, igrd ! dummy loop indices |
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| 123 | INTEGER :: ii, ij ! 2D addresses |
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| 124 | !!---------------------------------------------------------------------- |
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| 125 | ! |
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| 126 | IF( nn_timing == 1 ) CALL timing_start('bdy_tra_spe') |
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| 127 | ! |
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| 128 | igrd = 1 ! Everything is at T-points here |
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| 129 | DO ib = 1, idx%nblenrim(igrd) |
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| 130 | ii = idx%nbi(ib,igrd) |
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| 131 | ij = idx%nbj(ib,igrd) |
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| 132 | DO ik = 1, jpkm1 |
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| 133 | tsa(ii,ij,ik,jp_tem) = dta%tem(ib,ik) * tmask(ii,ij,ik) |
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| 134 | tsa(ii,ij,ik,jp_sal) = dta%sal(ib,ik) * tmask(ii,ij,ik) |
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| 135 | END DO |
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| 136 | END DO |
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| 137 | ! |
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[6004] | 138 | IF( kt == nit000 ) CLOSE( unit = 102 ) |
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[3651] | 139 | ! |
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[6004] | 140 | IF( nn_timing == 1 ) CALL timing_stop('bdy_tra_spe') |
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[3651] | 141 | ! |
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| 142 | END SUBROUTINE bdy_tra_spe |
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| 143 | |
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[6004] | 144 | |
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[3651] | 145 | SUBROUTINE bdy_tra_nmn( idx, dta, kt ) |
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| 146 | !!---------------------------------------------------------------------- |
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| 147 | !! *** SUBROUTINE bdy_tra_nmn *** |
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| 148 | !! |
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| 149 | !! ** Purpose : Duplicate the value for tracers at open boundaries. |
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| 150 | !! |
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| 151 | !!---------------------------------------------------------------------- |
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[6004] | 152 | INTEGER, INTENT(in) :: kt ! |
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| 153 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 154 | TYPE(OBC_DATA) , INTENT(in) :: dta ! OBC external data |
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| 155 | ! |
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[3651] | 156 | REAL(wp) :: zwgt ! boundary weight |
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| 157 | INTEGER :: ib, ik, igrd ! dummy loop indices |
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| 158 | INTEGER :: ii, ij,zcoef, zcoef1,zcoef2, ip, jp ! 2D addresses |
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| 159 | !!---------------------------------------------------------------------- |
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| 160 | ! |
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[6004] | 161 | IF( nn_timing == 1 ) CALL timing_start('bdy_tra_nmn') |
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[3651] | 162 | ! |
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| 163 | igrd = 1 ! Everything is at T-points here |
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| 164 | DO ib = 1, idx%nblenrim(igrd) |
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| 165 | ii = idx%nbi(ib,igrd) |
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| 166 | ij = idx%nbj(ib,igrd) |
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| 167 | DO ik = 1, jpkm1 |
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| 168 | ! search the sense of the gradient |
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| 169 | zcoef1 = bdytmask(ii-1,ij ) + bdytmask(ii+1,ij ) |
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| 170 | zcoef2 = bdytmask(ii ,ij-1) + bdytmask(ii ,ij+1) |
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| 171 | IF ( zcoef1+zcoef2 == 0) THEN |
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| 172 | ! corner |
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| 173 | zcoef = tmask(ii-1,ij,ik) + tmask(ii+1,ij,ik) + tmask(ii,ij-1,ik) + tmask(ii,ij+1,ik) |
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| 174 | tsa(ii,ij,ik,jp_tem) = tsa(ii-1,ij ,ik,jp_tem) * tmask(ii-1,ij ,ik) + & |
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| 175 | & tsa(ii+1,ij ,ik,jp_tem) * tmask(ii+1,ij ,ik) + & |
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| 176 | & tsa(ii ,ij-1,ik,jp_tem) * tmask(ii ,ij-1,ik) + & |
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| 177 | & tsa(ii ,ij+1,ik,jp_tem) * tmask(ii ,ij+1,ik) |
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| 178 | tsa(ii,ij,ik,jp_tem) = ( tsa(ii,ij,ik,jp_tem) / MAX( 1, zcoef) ) * tmask(ii,ij,ik) |
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| 179 | tsa(ii,ij,ik,jp_sal) = tsa(ii-1,ij ,ik,jp_sal) * tmask(ii-1,ij ,ik) + & |
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| 180 | & tsa(ii+1,ij ,ik,jp_sal) * tmask(ii+1,ij ,ik) + & |
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| 181 | & tsa(ii ,ij-1,ik,jp_sal) * tmask(ii ,ij-1,ik) + & |
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| 182 | & tsa(ii ,ij+1,ik,jp_sal) * tmask(ii ,ij+1,ik) |
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| 183 | tsa(ii,ij,ik,jp_sal) = ( tsa(ii,ij,ik,jp_sal) / MAX( 1, zcoef) ) * tmask(ii,ij,ik) |
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| 184 | ELSE |
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| 185 | ip = bdytmask(ii+1,ij ) - bdytmask(ii-1,ij ) |
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| 186 | jp = bdytmask(ii ,ij+1) - bdytmask(ii ,ij-1) |
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| 187 | tsa(ii,ij,ik,jp_tem) = tsa(ii+ip,ij+jp,ik,jp_tem) * tmask(ii+ip,ij+jp,ik) |
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| 188 | tsa(ii,ij,ik,jp_sal) = tsa(ii+ip,ij+jp,ik,jp_sal) * tmask(ii+ip,ij+jp,ik) |
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| 189 | ENDIF |
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| 190 | END DO |
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| 191 | END DO |
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| 192 | ! |
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[6004] | 193 | IF( kt == nit000 ) CLOSE( unit = 102 ) |
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[3651] | 194 | ! |
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[6004] | 195 | IF( nn_timing == 1 ) CALL timing_stop('bdy_tra_nmn') |
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[3651] | 196 | ! |
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| 197 | END SUBROUTINE bdy_tra_nmn |
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[4292] | 198 | |
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[3651] | 199 | |
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[4292] | 200 | SUBROUTINE bdy_tra_orlanski( idx, dta, ll_npo ) |
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| 201 | !!---------------------------------------------------------------------- |
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| 202 | !! *** SUBROUTINE bdy_tra_orlanski *** |
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| 203 | !! |
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| 204 | !! - Apply Orlanski radiation to temperature and salinity. |
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| 205 | !! - Wrapper routine for bdy_orlanski_3d |
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| 206 | !! |
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| 207 | !! |
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| 208 | !! References: Marchesiello, McWilliams and Shchepetkin, Ocean Modelling vol. 3 (2001) |
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| 209 | !!---------------------------------------------------------------------- |
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[6004] | 210 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 211 | TYPE(OBC_DATA) , INTENT(in) :: dta ! OBC external data |
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| 212 | LOGICAL , INTENT(in) :: ll_npo ! switch for NPO version |
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| 213 | ! |
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[4292] | 214 | INTEGER :: igrd ! grid index |
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| 215 | !!---------------------------------------------------------------------- |
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[6004] | 216 | ! |
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[4292] | 217 | IF( nn_timing == 1 ) CALL timing_start('bdy_tra_orlanski') |
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| 218 | ! |
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| 219 | igrd = 1 ! Orlanski bc on temperature; |
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| 220 | ! |
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| 221 | CALL bdy_orlanski_3d( idx, igrd, tsb(:,:,:,jp_tem), tsa(:,:,:,jp_tem), dta%tem, ll_npo ) |
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| 222 | |
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| 223 | igrd = 1 ! Orlanski bc on salinity; |
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| 224 | ! |
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| 225 | CALL bdy_orlanski_3d( idx, igrd, tsb(:,:,:,jp_sal), tsa(:,:,:,jp_sal), dta%sal, ll_npo ) |
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| 226 | ! |
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[6004] | 227 | IF( nn_timing == 1 ) CALL timing_stop('bdy_tra_orlanski') |
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[4292] | 228 | ! |
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| 229 | END SUBROUTINE bdy_tra_orlanski |
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| 230 | |
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| 231 | |
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[3651] | 232 | SUBROUTINE bdy_tra_rnf( idx, dta, kt ) |
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| 233 | !!---------------------------------------------------------------------- |
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| 234 | !! *** SUBROUTINE bdy_tra_rnf *** |
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| 235 | !! |
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| 236 | !! ** Purpose : Apply the runoff values for tracers at open boundaries: |
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| 237 | !! - specified to 0.1 PSU for the salinity |
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| 238 | !! - duplicate the value for the temperature |
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| 239 | !! |
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| 240 | !!---------------------------------------------------------------------- |
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[6004] | 241 | INTEGER , INTENT(in) :: kt ! |
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| 242 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 243 | TYPE(OBC_DATA) , INTENT(in) :: dta ! OBC external data |
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| 244 | ! |
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[3651] | 245 | REAL(wp) :: zwgt ! boundary weight |
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| 246 | INTEGER :: ib, ik, igrd ! dummy loop indices |
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| 247 | INTEGER :: ii, ij, ip, jp ! 2D addresses |
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| 248 | !!---------------------------------------------------------------------- |
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| 249 | ! |
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[6004] | 250 | IF( nn_timing == 1 ) CALL timing_start('bdy_tra_rnf') |
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[3651] | 251 | ! |
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| 252 | igrd = 1 ! Everything is at T-points here |
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| 253 | DO ib = 1, idx%nblenrim(igrd) |
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| 254 | ii = idx%nbi(ib,igrd) |
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| 255 | ij = idx%nbj(ib,igrd) |
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| 256 | DO ik = 1, jpkm1 |
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| 257 | ip = bdytmask(ii+1,ij ) - bdytmask(ii-1,ij ) |
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| 258 | jp = bdytmask(ii ,ij+1) - bdytmask(ii ,ij-1) |
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| 259 | tsa(ii,ij,ik,jp_tem) = tsa(ii+ip,ij+jp,ik,jp_tem) * tmask(ii,ij,ik) |
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| 260 | tsa(ii,ij,ik,jp_sal) = 0.1 * tmask(ii,ij,ik) |
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| 261 | END DO |
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| 262 | END DO |
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| 263 | ! |
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[6004] | 264 | IF( kt == nit000 ) CLOSE( unit = 102 ) |
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[3651] | 265 | ! |
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[6004] | 266 | IF( nn_timing == 1 ) CALL timing_stop('bdy_tra_rnf') |
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[3651] | 267 | ! |
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| 268 | END SUBROUTINE bdy_tra_rnf |
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| 269 | |
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[6004] | 270 | |
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[3651] | 271 | SUBROUTINE bdy_tra_dmp( kt ) |
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| 272 | !!---------------------------------------------------------------------- |
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| 273 | !! *** SUBROUTINE bdy_tra_dmp *** |
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| 274 | !! |
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| 275 | !! ** Purpose : Apply damping for tracers at open boundaries. |
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| 276 | !! |
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| 277 | !!---------------------------------------------------------------------- |
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[6004] | 278 | INTEGER, INTENT(in) :: kt ! |
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| 279 | ! |
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[3651] | 280 | REAL(wp) :: zwgt ! boundary weight |
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| 281 | REAL(wp) :: zta, zsa, ztime |
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| 282 | INTEGER :: ib, ik, igrd ! dummy loop indices |
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| 283 | INTEGER :: ii, ij ! 2D addresses |
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| 284 | INTEGER :: ib_bdy ! Loop index |
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| 285 | !!---------------------------------------------------------------------- |
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| 286 | ! |
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[6004] | 287 | IF( nn_timing == 1 ) CALL timing_start('bdy_tra_dmp') |
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[3651] | 288 | ! |
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[6004] | 289 | DO ib_bdy = 1, nb_bdy |
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| 290 | IF( ln_tra_dmp(ib_bdy) ) THEN |
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[3651] | 291 | igrd = 1 ! Everything is at T-points here |
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| 292 | DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd) |
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| 293 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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| 294 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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| 295 | zwgt = idx_bdy(ib_bdy)%nbd(ib,igrd) |
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| 296 | DO ik = 1, jpkm1 |
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| 297 | zta = zwgt * ( dta_bdy(ib_bdy)%tem(ib,ik) - tsb(ii,ij,ik,jp_tem) ) * tmask(ii,ij,ik) |
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| 298 | zsa = zwgt * ( dta_bdy(ib_bdy)%sal(ib,ik) - tsb(ii,ij,ik,jp_sal) ) * tmask(ii,ij,ik) |
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| 299 | tsa(ii,ij,ik,jp_tem) = tsa(ii,ij,ik,jp_tem) + zta |
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| 300 | tsa(ii,ij,ik,jp_sal) = tsa(ii,ij,ik,jp_sal) + zsa |
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| 301 | END DO |
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| 302 | END DO |
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| 303 | ENDIF |
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[6004] | 304 | END DO |
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[3651] | 305 | ! |
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[6004] | 306 | IF( nn_timing == 1 ) CALL timing_stop('bdy_tra_dmp') |
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[3651] | 307 | ! |
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| 308 | END SUBROUTINE bdy_tra_dmp |
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| 309 | |
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[911] | 310 | #else |
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[1125] | 311 | !!---------------------------------------------------------------------- |
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| 312 | !! Dummy module NO Unstruct Open Boundary Conditions |
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| 313 | !!---------------------------------------------------------------------- |
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[911] | 314 | CONTAINS |
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[3294] | 315 | SUBROUTINE bdy_tra(kt) ! Empty routine |
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| 316 | WRITE(*,*) 'bdy_tra: You should not have seen this print! error?', kt |
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| 317 | END SUBROUTINE bdy_tra |
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[3651] | 318 | |
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| 319 | SUBROUTINE bdy_tra_dmp(kt) ! Empty routine |
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| 320 | WRITE(*,*) 'bdy_tra_dmp: You should not have seen this print! error?', kt |
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| 321 | END SUBROUTINE bdy_tra_dmp |
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[911] | 322 | #endif |
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| 323 | |
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[1125] | 324 | !!====================================================================== |
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[911] | 325 | END MODULE bdytra |
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