[6108] | 1 | MODULE trcbdy |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE bdytrc *** |
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| 4 | !! Ocean tracers: Apply boundary conditions for tracers in TOP component |
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| 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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| 8 | !! 3.4 ! 2011 (D. Storkey) rewrite in preparation for OBC-BDY merge |
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| 9 | !! 3.5 ! 2012 (S. Mocavero, I. Epicoco) Optimization of BDY communications |
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| 10 | !! 3.6 ! 2015 (T. Lovato) Adapt BDY for tracers in TOP component |
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[7646] | 11 | !! 4.0 ! 2016 (T. Lovato) Generalize OBC structure |
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[6108] | 12 | !!---------------------------------------------------------------------- |
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[7646] | 13 | #if defined key_top |
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[6108] | 14 | !!---------------------------------------------------------------------- |
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[7646] | 15 | !! trc_bdy : Apply open boundary conditions & damping to tracers |
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[6108] | 16 | !!---------------------------------------------------------------------- |
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| 17 | USE timing ! Timing |
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| 18 | USE oce_trc ! ocean dynamics and tracers variables |
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| 19 | USE par_trc |
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| 20 | USE trc ! ocean space and time domain variables |
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| 21 | USE bdylib ! for orlanski library routines |
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| 22 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 23 | USE in_out_manager ! I/O manager |
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[11536] | 24 | USE bdy_oce ! ocean open boundary conditions |
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[6108] | 25 | |
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| 26 | IMPLICIT NONE |
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| 27 | PRIVATE |
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| 28 | |
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| 29 | PUBLIC trc_bdy ! routine called in trcnxt.F90 |
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| 30 | PUBLIC trc_bdy_dmp ! routine called in trcstp.F90 |
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| 31 | |
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| 32 | !!---------------------------------------------------------------------- |
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[10068] | 33 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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[6108] | 34 | !! $Id$ |
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[10068] | 35 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[6108] | 36 | !!---------------------------------------------------------------------- |
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| 37 | CONTAINS |
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| 38 | |
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[12377] | 39 | SUBROUTINE trc_bdy( kt, Kbb, Kmm, Krhs ) |
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[6108] | 40 | !!---------------------------------------------------------------------- |
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| 41 | !! *** SUBROUTINE trc_bdy *** |
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| 42 | !! |
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[7646] | 43 | !! ** Purpose : - Apply open boundary conditions for TOP tracers |
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[6108] | 44 | !! |
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| 45 | !!---------------------------------------------------------------------- |
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[12377] | 46 | INTEGER, INTENT( in ) :: kt ! Main time step counter |
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| 47 | INTEGER, INTENT( in ) :: Kbb, Kmm, Krhs ! time level indices |
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[6108] | 48 | !! |
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[11536] | 49 | INTEGER :: ib_bdy ,ir, jn ,igrd ! Loop indices |
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[7646] | 50 | REAL(wp), POINTER, DIMENSION(:,:) :: ztrc |
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[11536] | 51 | LOGICAL :: llrim0 ! indicate if rim 0 is treated |
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| 52 | LOGICAL, DIMENSION(4) :: llsend1, llrecv1 ! indicate how communications are to be carried out |
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[6108] | 53 | !!---------------------------------------------------------------------- |
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| 54 | ! |
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[9124] | 55 | IF( ln_timing ) CALL timing_start('trc_bdy') |
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[6108] | 56 | ! |
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[7646] | 57 | igrd = 1 |
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[11536] | 58 | llsend1(:) = .false. ; llrecv1(:) = .false. |
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| 59 | DO ir = 1, 0, -1 ! treat rim 1 before rim 0 |
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| 60 | IF( ir == 0 ) THEN ; llrim0 = .TRUE. |
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| 61 | ELSE ; llrim0 = .FALSE. |
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[13766] | 62 | ENDIF |
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[11536] | 63 | DO ib_bdy=1, nb_bdy |
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[13766] | 64 | ! |
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[11536] | 65 | DO jn = 1, jptra |
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| 66 | ! |
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[13766] | 67 | IF( ASSOCIATED(trcdta_bdy(jn,ib_bdy)%trc) .AND. trcdta_bdy(jn,ib_bdy)%cn_obc /= 'neumann' ) THEN |
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| 68 | IF( .NOT. ASSOCIATED(ztrc) ) ALLOCATE( ztrc(idx_bdy(ib_bdy)%nblen(igrd),jpk) ) |
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| 69 | ztrc(:,:) = trcdta_bdy(jn,ib_bdy)%trc(:,:) * trcdta_bdy(jn,ib_bdy)%rn_fac |
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| 70 | ENDIF |
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[11536] | 71 | ! |
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[13766] | 72 | SELECT CASE( trcdta_bdy(jn,ib_bdy)%cn_obc ) |
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[11536] | 73 | CASE('none' ) ; CYCLE |
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| 74 | CASE('frs' ) ! treat the whole boundary at once |
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[13766] | 75 | IF( ir == 0 ) CALL bdy_frs( idx_bdy(ib_bdy), tr(:,:,:,jn,Krhs), ztrc ) |
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[11536] | 76 | CASE('specified' ) ! treat the whole rim at once |
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[13766] | 77 | IF( ir == 0 ) CALL bdy_spe( idx_bdy(ib_bdy), tr(:,:,:,jn,Krhs), ztrc ) |
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| 78 | CASE('neumann' ) ; CALL bdy_nmn( idx_bdy(ib_bdy), igrd , tr(:,:,:,jn,Krhs), llrim0 ) ! tra masked |
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| 79 | CASE('orlanski' ) ; CALL bdy_orl( idx_bdy(ib_bdy), tr(:,:,:,jn,Kbb), tr(:,:,:,jn,Krhs), ztrc, llrim0, & |
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| 80 | & ll_npo=.FALSE. ) |
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| 81 | CASE('orlanski_npo') ; CALL bdy_orl( idx_bdy(ib_bdy), tr(:,:,:,jn,Kbb), tr(:,:,:,jn,Krhs), ztrc, llrim0, & |
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| 82 | & ll_npo=.TRUE. ) |
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[11536] | 83 | CASE DEFAULT ; CALL ctl_stop( 'trc_bdy : unrecognised option for open boundaries for passive tracers' ) |
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| 84 | END SELECT |
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| 85 | ! |
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| 86 | END DO |
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[13766] | 87 | ! |
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| 88 | IF( ASSOCIATED(ztrc) ) DEALLOCATE(ztrc) |
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| 89 | ! |
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[11536] | 90 | END DO |
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| 91 | ! |
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| 92 | IF( nn_hls > 1 .AND. ir == 1 ) CYCLE ! at least 2 halos will be corrected -> no need to correct rim 1 before rim 0 |
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[13766] | 93 | IF( nn_hls == 1 ) THEN ; llsend1(:) = .false. ; llrecv1(:) = .false. ; ENDIF |
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[11536] | 94 | DO ib_bdy=1, nb_bdy |
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[13766] | 95 | SELECT CASE( cn_tra(ib_bdy) ) |
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[11536] | 96 | CASE('neumann') |
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| 97 | llsend1(:) = llsend1(:) .OR. lsend_bdyint(ib_bdy,1,:,ir) ! possibly every direction, T points |
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| 98 | llrecv1(:) = llrecv1(:) .OR. lrecv_bdyint(ib_bdy,1,:,ir) ! possibly every direction, T points |
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| 99 | CASE('orlanski','orlanski_npo') |
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| 100 | llsend1(:) = llsend1(:) .OR. lsend_bdy(ib_bdy,1,:,ir) ! possibly every direction, T points |
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| 101 | llrecv1(:) = llrecv1(:) .OR. lrecv_bdy(ib_bdy,1,:,ir) ! possibly every direction, T points |
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[6108] | 102 | END SELECT |
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[7646] | 103 | END DO |
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[11536] | 104 | IF( ANY(llsend1) .OR. ANY(llrecv1) ) THEN ! if need to send/recv in at least one direction |
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[13766] | 105 | CALL lbc_lnk( 'trcbdy', tr(:,:,:,:,Krhs), 'T', 1.0_wp, kfillmode=jpfillnothing ,lsend=llsend1, lrecv=llrecv1 ) |
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| 106 | ENDIF |
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[11536] | 107 | ! |
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| 108 | END DO ! ir |
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[6108] | 109 | ! |
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[9124] | 110 | IF( ln_timing ) CALL timing_stop('trc_bdy') |
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[11536] | 111 | ! |
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[6108] | 112 | END SUBROUTINE trc_bdy |
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| 113 | |
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[9124] | 114 | |
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[12377] | 115 | SUBROUTINE trc_bdy_dmp( kt, Kbb, Krhs ) |
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[6108] | 116 | !!---------------------------------------------------------------------- |
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| 117 | !! *** SUBROUTINE trc_bdy_dmp *** |
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| 118 | !! |
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| 119 | !! ** Purpose : Apply damping for tracers at open boundaries. |
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| 120 | !! It currently applies the damping to all tracers!!! |
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| 121 | !! |
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| 122 | !!---------------------------------------------------------------------- |
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| 123 | INTEGER, INTENT(in) :: kt |
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[12377] | 124 | INTEGER, INTENT(in) :: Kbb, Krhs ! time level indices |
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[6108] | 125 | !! |
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| 126 | INTEGER :: jn ! Tracer index |
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| 127 | REAL(wp) :: zwgt ! boundary weight |
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| 128 | REAL(wp) :: zta, zsa, ztime |
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| 129 | INTEGER :: ib, ik, igrd ! dummy loop indices |
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| 130 | INTEGER :: ii, ij ! 2D addresses |
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| 131 | INTEGER :: ib_bdy ! Loop index |
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| 132 | !!---------------------------------------------------------------------- |
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| 133 | ! |
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[9124] | 134 | IF( ln_timing ) CALL timing_start('trc_bdy_dmp') |
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[6108] | 135 | ! |
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| 136 | DO jn = 1, jptra |
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| 137 | DO ib_bdy=1, nb_bdy |
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[9124] | 138 | IF( trcdta_bdy(jn, ib_bdy)%dmp ) THEN |
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[6108] | 139 | igrd = 1 ! Everything is at T-points here |
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| 140 | DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd) |
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| 141 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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| 142 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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| 143 | zwgt = idx_bdy(ib_bdy)%nbd(ib,igrd) |
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| 144 | DO ik = 1, jpkm1 |
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[12377] | 145 | zta = zwgt * ( trcdta_bdy(jn, ib_bdy)%trc(ib,ik) - tr(ii,ij,ik,jn,Kbb) ) * tmask(ii,ij,ik) |
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| 146 | tr(ii,ij,ik,jn,Krhs) = tr(ii,ij,ik,jn,Krhs) + zta |
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[6108] | 147 | END DO |
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| 148 | END DO |
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| 149 | ENDIF |
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[9124] | 150 | END DO |
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| 151 | END DO |
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[6108] | 152 | ! |
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[9124] | 153 | IF( ln_timing ) CALL timing_stop('trc_bdy_dmp') |
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[6108] | 154 | ! |
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| 155 | END SUBROUTINE trc_bdy_dmp |
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| 156 | |
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| 157 | #else |
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| 158 | !!---------------------------------------------------------------------- |
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| 159 | !! Dummy module NO Unstruct Open Boundary Conditions |
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| 160 | !!---------------------------------------------------------------------- |
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| 161 | CONTAINS |
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| 162 | SUBROUTINE trc_bdy(kt) ! Empty routine |
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| 163 | WRITE(*,*) 'trc_bdy: You should not have seen this print! error?', kt |
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| 164 | END SUBROUTINE trc_bdy |
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| 165 | |
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| 166 | SUBROUTINE trc_bdy_dmp(kt) ! Empty routine |
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| 167 | WRITE(*,*) 'trc_bdy_dmp: You should not have seen this print! error?', kt |
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| 168 | END SUBROUTINE trc_bdy_dmp |
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| 169 | |
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| 170 | #endif |
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| 171 | |
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| 172 | !!====================================================================== |
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| 173 | END MODULE trcbdy |
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