[3117] | 1 | MODULE bdydyn3d |
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| 2 | !!====================================================================== |
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[3182] | 3 | !! *** MODULE bdydyn3d *** |
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[3191] | 4 | !! Unstructured Open Boundary Cond. : Flow relaxation scheme on baroclinic velocities |
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[3117] | 5 | !!====================================================================== |
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[3191] | 6 | !! History : 3.4 ! 2011 (D. Storkey) new module as part of BDY rewrite |
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[3680] | 7 | !! 3.5 ! 2012 (S. Mocavero, I. Epicoco) Optimization of BDY communications |
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[3117] | 8 | !!---------------------------------------------------------------------- |
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| 9 | !! bdy_dyn3d : apply open boundary conditions to baroclinic velocities |
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| 10 | !! bdy_dyn3d_frs : apply Flow Relaxation Scheme |
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| 11 | !!---------------------------------------------------------------------- |
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[3182] | 12 | USE timing ! Timing |
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[3117] | 13 | USE oce ! ocean dynamics and tracers |
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| 14 | USE dom_oce ! ocean space and time domain |
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| 15 | USE bdy_oce ! ocean open boundary conditions |
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[4292] | 16 | USE bdylib ! for orlanski library routines |
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[3117] | 17 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 18 | USE in_out_manager ! |
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[3651] | 19 | Use phycst |
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[3117] | 20 | |
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| 21 | IMPLICIT NONE |
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| 22 | PRIVATE |
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| 23 | |
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[3191] | 24 | PUBLIC bdy_dyn3d ! routine called by bdy_dyn |
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[3651] | 25 | PUBLIC bdy_dyn3d_dmp ! routine called by step |
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[3117] | 26 | |
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| 27 | !!---------------------------------------------------------------------- |
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[9598] | 28 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[5215] | 29 | !! $Id$ |
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[10068] | 30 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[3117] | 31 | !!---------------------------------------------------------------------- |
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| 32 | CONTAINS |
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| 33 | |
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| 34 | SUBROUTINE bdy_dyn3d( kt ) |
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| 35 | !!---------------------------------------------------------------------- |
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| 36 | !! *** SUBROUTINE bdy_dyn3d *** |
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| 37 | !! |
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| 38 | !! ** Purpose : - Apply open boundary conditions for baroclinic velocities |
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| 39 | !! |
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| 40 | !!---------------------------------------------------------------------- |
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[6140] | 41 | INTEGER, INTENT(in) :: kt ! Main time step counter |
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| 42 | ! |
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| 43 | INTEGER :: ib_bdy ! loop index |
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| 44 | !!---------------------------------------------------------------------- |
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| 45 | ! |
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[3117] | 46 | DO ib_bdy=1, nb_bdy |
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[6140] | 47 | ! |
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[4292] | 48 | SELECT CASE( cn_dyn3d(ib_bdy) ) |
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[6140] | 49 | CASE('none') ; CYCLE |
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| 50 | CASE('frs' ) ; CALL bdy_dyn3d_frs( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt, ib_bdy ) |
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| 51 | CASE('specified') ; CALL bdy_dyn3d_spe( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt, ib_bdy ) |
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| 52 | CASE('zero') ; CALL bdy_dyn3d_zro( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt, ib_bdy ) |
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| 53 | CASE('orlanski' ) ; CALL bdy_dyn3d_orlanski( idx_bdy(ib_bdy), dta_bdy(ib_bdy), ib_bdy, ll_npo=.false. ) |
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| 54 | CASE('orlanski_npo'); CALL bdy_dyn3d_orlanski( idx_bdy(ib_bdy), dta_bdy(ib_bdy), ib_bdy, ll_npo=.true. ) |
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[7646] | 55 | CASE('zerograd') ; CALL bdy_dyn3d_zgrad( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt, ib_bdy ) |
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| 56 | CASE('neumann') ; CALL bdy_dyn3d_nmn( idx_bdy(ib_bdy), ib_bdy ) |
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[6140] | 57 | CASE DEFAULT ; CALL ctl_stop( 'bdy_dyn3d : unrecognised option for open boundaries for baroclinic velocities' ) |
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[3117] | 58 | END SELECT |
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[6140] | 59 | END DO |
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| 60 | ! |
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[3117] | 61 | END SUBROUTINE bdy_dyn3d |
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| 62 | |
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[6140] | 63 | |
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[3680] | 64 | SUBROUTINE bdy_dyn3d_spe( idx, dta, kt , ib_bdy ) |
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[3651] | 65 | !!---------------------------------------------------------------------- |
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| 66 | !! *** SUBROUTINE bdy_dyn3d_spe *** |
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| 67 | !! |
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| 68 | !! ** Purpose : - Apply a specified value for baroclinic velocities |
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| 69 | !! at open boundaries. |
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| 70 | !! |
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| 71 | !!---------------------------------------------------------------------- |
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[6140] | 72 | INTEGER , INTENT(in) :: kt ! time step index |
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| 73 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 74 | TYPE(OBC_DATA) , INTENT(in) :: dta ! OBC external data |
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| 75 | INTEGER , INTENT(in) :: ib_bdy ! BDY set index |
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| 76 | ! |
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[3651] | 77 | INTEGER :: jb, jk ! dummy loop indices |
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| 78 | INTEGER :: ii, ij, igrd ! local integers |
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| 79 | REAL(wp) :: zwgt ! boundary weight |
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| 80 | !!---------------------------------------------------------------------- |
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| 81 | ! |
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| 82 | igrd = 2 ! Relaxation of zonal velocity |
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| 83 | DO jb = 1, idx%nblenrim(igrd) |
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| 84 | DO jk = 1, jpkm1 |
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| 85 | ii = idx%nbi(jb,igrd) |
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| 86 | ij = idx%nbj(jb,igrd) |
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| 87 | ua(ii,ij,jk) = dta%u3d(jb,jk) * umask(ii,ij,jk) |
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| 88 | END DO |
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| 89 | END DO |
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| 90 | ! |
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| 91 | igrd = 3 ! Relaxation of meridional velocity |
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| 92 | DO jb = 1, idx%nblenrim(igrd) |
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| 93 | DO jk = 1, jpkm1 |
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| 94 | ii = idx%nbi(jb,igrd) |
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| 95 | ij = idx%nbj(jb,igrd) |
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| 96 | va(ii,ij,jk) = dta%v3d(jb,jk) * vmask(ii,ij,jk) |
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| 97 | END DO |
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| 98 | END DO |
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[4292] | 99 | CALL lbc_bdy_lnk( ua, 'U', -1., ib_bdy ) ! Boundary points should be updated |
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| 100 | CALL lbc_bdy_lnk( va, 'V', -1., ib_bdy ) |
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[3651] | 101 | ! |
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[6140] | 102 | IF( kt == nit000 ) CLOSE( unit = 102 ) |
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| 103 | ! |
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[3651] | 104 | END SUBROUTINE bdy_dyn3d_spe |
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| 105 | |
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[9124] | 106 | |
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[7646] | 107 | SUBROUTINE bdy_dyn3d_zgrad( idx, dta, kt , ib_bdy ) |
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| 108 | !!---------------------------------------------------------------------- |
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| 109 | !! *** SUBROUTINE bdy_dyn3d_zgrad *** |
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| 110 | !! |
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| 111 | !! ** Purpose : - Enforce a zero gradient of normal velocity |
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| 112 | !! |
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| 113 | !!---------------------------------------------------------------------- |
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| 114 | INTEGER :: kt |
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| 115 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 116 | TYPE(OBC_DATA), INTENT(in) :: dta ! OBC external data |
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| 117 | INTEGER, INTENT(in) :: ib_bdy ! BDY set index |
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| 118 | !! |
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| 119 | INTEGER :: jb, jk ! dummy loop indices |
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| 120 | INTEGER :: ii, ij, igrd ! local integers |
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| 121 | REAL(wp) :: zwgt ! boundary weight |
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| 122 | INTEGER :: fu, fv |
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| 123 | !!---------------------------------------------------------------------- |
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| 124 | ! |
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| 125 | igrd = 2 ! Copying tangential velocity into bdy points |
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| 126 | DO jb = 1, idx%nblenrim(igrd) |
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| 127 | DO jk = 1, jpkm1 |
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| 128 | ii = idx%nbi(jb,igrd) |
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| 129 | ij = idx%nbj(jb,igrd) |
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| 130 | fu = ABS( ABS (NINT( idx%flagu(jb,igrd) ) ) - 1 ) |
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| 131 | ua(ii,ij,jk) = ua(ii,ij,jk) * REAL( 1 - fu) + ( ua(ii,ij+fu,jk) * umask(ii,ij+fu,jk) & |
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| 132 | &+ ua(ii,ij-fu,jk) * umask(ii,ij-fu,jk) ) * umask(ii,ij,jk) * REAL( fu ) |
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| 133 | END DO |
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| 134 | END DO |
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| 135 | ! |
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| 136 | igrd = 3 ! Copying tangential velocity into bdy points |
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| 137 | DO jb = 1, idx%nblenrim(igrd) |
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| 138 | DO jk = 1, jpkm1 |
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| 139 | ii = idx%nbi(jb,igrd) |
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| 140 | ij = idx%nbj(jb,igrd) |
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| 141 | fv = ABS( ABS (NINT( idx%flagv(jb,igrd) ) ) - 1 ) |
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| 142 | va(ii,ij,jk) = va(ii,ij,jk) * REAL( 1 - fv ) + ( va(ii+fv,ij,jk) * vmask(ii+fv,ij,jk) & |
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| 143 | &+ va(ii-fv,ij,jk) * vmask(ii-fv,ij,jk) ) * vmask(ii,ij,jk) * REAL( fv ) |
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| 144 | END DO |
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| 145 | END DO |
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| 146 | CALL lbc_bdy_lnk( ua, 'U', -1., ib_bdy ) ! Boundary points should be updated |
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| 147 | CALL lbc_bdy_lnk( va, 'V', -1., ib_bdy ) |
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| 148 | ! |
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[9124] | 149 | IF( kt == nit000 ) CLOSE( unit = 102 ) |
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| 150 | ! |
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| 151 | END SUBROUTINE bdy_dyn3d_zgrad |
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[6140] | 152 | |
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[7646] | 153 | |
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[3680] | 154 | SUBROUTINE bdy_dyn3d_zro( idx, dta, kt, ib_bdy ) |
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[3651] | 155 | !!---------------------------------------------------------------------- |
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| 156 | !! *** SUBROUTINE bdy_dyn3d_zro *** |
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| 157 | !! |
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| 158 | !! ** Purpose : - baroclinic velocities = 0. at open boundaries. |
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| 159 | !! |
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| 160 | !!---------------------------------------------------------------------- |
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[6140] | 161 | INTEGER , INTENT(in) :: kt ! time step index |
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| 162 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 163 | TYPE(OBC_DATA) , INTENT(in) :: dta ! OBC external data |
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[3680] | 164 | INTEGER, INTENT(in) :: ib_bdy ! BDY set index |
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[6140] | 165 | ! |
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[3651] | 166 | INTEGER :: ib, ik ! dummy loop indices |
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[6140] | 167 | INTEGER :: ii, ij, igrd ! local integers |
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[3651] | 168 | REAL(wp) :: zwgt ! boundary weight |
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| 169 | !!---------------------------------------------------------------------- |
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| 170 | ! |
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| 171 | igrd = 2 ! Everything is at T-points here |
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| 172 | DO ib = 1, idx%nblenrim(igrd) |
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| 173 | ii = idx%nbi(ib,igrd) |
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| 174 | ij = idx%nbj(ib,igrd) |
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| 175 | DO ik = 1, jpkm1 |
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| 176 | ua(ii,ij,ik) = 0._wp |
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| 177 | END DO |
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| 178 | END DO |
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| 179 | |
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| 180 | igrd = 3 ! Everything is at T-points here |
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| 181 | DO ib = 1, idx%nblenrim(igrd) |
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| 182 | ii = idx%nbi(ib,igrd) |
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| 183 | ij = idx%nbj(ib,igrd) |
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| 184 | DO ik = 1, jpkm1 |
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| 185 | va(ii,ij,ik) = 0._wp |
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| 186 | END DO |
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| 187 | END DO |
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| 188 | ! |
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[3680] | 189 | CALL lbc_bdy_lnk( ua, 'U', -1., ib_bdy ) ; CALL lbc_bdy_lnk( va, 'V', -1.,ib_bdy ) ! Boundary points should be updated |
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[3651] | 190 | ! |
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[6140] | 191 | IF( kt == nit000 ) CLOSE( unit = 102 ) |
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| 192 | ! |
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| 193 | END SUBROUTINE bdy_dyn3d_zro |
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[3651] | 194 | |
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| 195 | |
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[3680] | 196 | SUBROUTINE bdy_dyn3d_frs( idx, dta, kt, ib_bdy ) |
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[3117] | 197 | !!---------------------------------------------------------------------- |
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| 198 | !! *** SUBROUTINE bdy_dyn3d_frs *** |
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| 199 | !! |
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| 200 | !! ** Purpose : - Apply the Flow Relaxation Scheme for baroclinic velocities |
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| 201 | !! at open boundaries. |
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| 202 | !! |
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| 203 | !! References :- Engedahl H., 1995: Use of the flow relaxation scheme in |
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| 204 | !! a three-dimensional baroclinic ocean model with realistic |
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| 205 | !! topography. Tellus, 365-382. |
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| 206 | !!---------------------------------------------------------------------- |
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[6140] | 207 | INTEGER , INTENT(in) :: kt ! time step index |
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| 208 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 209 | TYPE(OBC_DATA) , INTENT(in) :: dta ! OBC external data |
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[3680] | 210 | INTEGER, INTENT(in) :: ib_bdy ! BDY set index |
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[6140] | 211 | ! |
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[3117] | 212 | INTEGER :: jb, jk ! dummy loop indices |
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| 213 | INTEGER :: ii, ij, igrd ! local integers |
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| 214 | REAL(wp) :: zwgt ! boundary weight |
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| 215 | !!---------------------------------------------------------------------- |
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| 216 | ! |
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| 217 | igrd = 2 ! Relaxation of zonal velocity |
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| 218 | DO jb = 1, idx%nblen(igrd) |
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| 219 | DO jk = 1, jpkm1 |
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| 220 | ii = idx%nbi(jb,igrd) |
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| 221 | ij = idx%nbj(jb,igrd) |
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| 222 | zwgt = idx%nbw(jb,igrd) |
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| 223 | ua(ii,ij,jk) = ( ua(ii,ij,jk) + zwgt * ( dta%u3d(jb,jk) - ua(ii,ij,jk) ) ) * umask(ii,ij,jk) |
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| 224 | END DO |
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| 225 | END DO |
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| 226 | ! |
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| 227 | igrd = 3 ! Relaxation of meridional velocity |
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| 228 | DO jb = 1, idx%nblen(igrd) |
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| 229 | DO jk = 1, jpkm1 |
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| 230 | ii = idx%nbi(jb,igrd) |
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| 231 | ij = idx%nbj(jb,igrd) |
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| 232 | zwgt = idx%nbw(jb,igrd) |
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| 233 | va(ii,ij,jk) = ( va(ii,ij,jk) + zwgt * ( dta%v3d(jb,jk) - va(ii,ij,jk) ) ) * vmask(ii,ij,jk) |
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| 234 | END DO |
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| 235 | END DO |
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[4292] | 236 | CALL lbc_bdy_lnk( ua, 'U', -1., ib_bdy ) ! Boundary points should be updated |
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| 237 | CALL lbc_bdy_lnk( va, 'V', -1., ib_bdy ) |
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[3117] | 238 | ! |
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[6140] | 239 | IF( kt == nit000 ) CLOSE( unit = 102 ) |
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| 240 | ! |
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| 241 | END SUBROUTINE bdy_dyn3d_frs |
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[3117] | 242 | |
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[3182] | 243 | |
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[4292] | 244 | SUBROUTINE bdy_dyn3d_orlanski( idx, dta, ib_bdy, ll_npo ) |
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| 245 | !!---------------------------------------------------------------------- |
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| 246 | !! *** SUBROUTINE bdy_dyn3d_orlanski *** |
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| 247 | !! |
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| 248 | !! - Apply Orlanski radiation to baroclinic velocities. |
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| 249 | !! - Wrapper routine for bdy_orlanski_3d |
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| 250 | !! |
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| 251 | !! |
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| 252 | !! References: Marchesiello, McWilliams and Shchepetkin, Ocean Modelling vol. 3 (2001) |
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| 253 | !!---------------------------------------------------------------------- |
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| 254 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 255 | TYPE(OBC_DATA), INTENT(in) :: dta ! OBC external data |
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| 256 | INTEGER, INTENT(in) :: ib_bdy ! BDY set index |
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| 257 | LOGICAL, INTENT(in) :: ll_npo ! switch for NPO version |
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| 258 | |
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| 259 | INTEGER :: jb, igrd ! dummy loop indices |
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| 260 | !!---------------------------------------------------------------------- |
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| 261 | ! |
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| 262 | !! Note that at this stage the ub and ua arrays contain the baroclinic velocities. |
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| 263 | ! |
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| 264 | igrd = 2 ! Orlanski bc on u-velocity; |
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| 265 | ! |
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| 266 | CALL bdy_orlanski_3d( idx, igrd, ub, ua, dta%u3d, ll_npo ) |
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| 267 | |
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| 268 | igrd = 3 ! Orlanski bc on v-velocity |
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| 269 | ! |
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| 270 | CALL bdy_orlanski_3d( idx, igrd, vb, va, dta%v3d, ll_npo ) |
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| 271 | ! |
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| 272 | CALL lbc_bdy_lnk( ua, 'U', -1., ib_bdy ) ! Boundary points should be updated |
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| 273 | CALL lbc_bdy_lnk( va, 'V', -1., ib_bdy ) |
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| 274 | ! |
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| 275 | END SUBROUTINE bdy_dyn3d_orlanski |
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| 276 | |
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| 277 | |
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[3651] | 278 | SUBROUTINE bdy_dyn3d_dmp( kt ) |
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| 279 | !!---------------------------------------------------------------------- |
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| 280 | !! *** SUBROUTINE bdy_dyn3d_dmp *** |
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| 281 | !! |
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| 282 | !! ** Purpose : Apply damping for baroclinic velocities at open boundaries. |
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| 283 | !! |
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| 284 | !!---------------------------------------------------------------------- |
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[6140] | 285 | INTEGER, INTENT(in) :: kt ! time step index |
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| 286 | ! |
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[3651] | 287 | INTEGER :: jb, jk ! dummy loop indices |
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[6140] | 288 | INTEGER :: ib_bdy ! loop index |
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[3651] | 289 | INTEGER :: ii, ij, igrd ! local integers |
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| 290 | REAL(wp) :: zwgt ! boundary weight |
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| 291 | !!---------------------------------------------------------------------- |
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| 292 | ! |
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[9124] | 293 | IF( ln_timing ) CALL timing_start('bdy_dyn3d_dmp') |
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[3651] | 294 | ! |
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| 295 | DO ib_bdy=1, nb_bdy |
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[4292] | 296 | IF ( ln_dyn3d_dmp(ib_bdy) .and. cn_dyn3d(ib_bdy) /= 'none' ) THEN |
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[3651] | 297 | igrd = 2 ! Relaxation of zonal velocity |
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| 298 | DO jb = 1, idx_bdy(ib_bdy)%nblen(igrd) |
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| 299 | ii = idx_bdy(ib_bdy)%nbi(jb,igrd) |
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| 300 | ij = idx_bdy(ib_bdy)%nbj(jb,igrd) |
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| 301 | zwgt = idx_bdy(ib_bdy)%nbd(jb,igrd) |
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| 302 | DO jk = 1, jpkm1 |
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[3703] | 303 | ua(ii,ij,jk) = ( ua(ii,ij,jk) + zwgt * ( dta_bdy(ib_bdy)%u3d(jb,jk) - & |
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[4354] | 304 | ub(ii,ij,jk) + ub_b(ii,ij)) ) * umask(ii,ij,jk) |
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[3651] | 305 | END DO |
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| 306 | END DO |
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| 307 | ! |
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| 308 | igrd = 3 ! Relaxation of meridional velocity |
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| 309 | DO jb = 1, idx_bdy(ib_bdy)%nblen(igrd) |
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| 310 | ii = idx_bdy(ib_bdy)%nbi(jb,igrd) |
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| 311 | ij = idx_bdy(ib_bdy)%nbj(jb,igrd) |
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| 312 | zwgt = idx_bdy(ib_bdy)%nbd(jb,igrd) |
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| 313 | DO jk = 1, jpkm1 |
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[3703] | 314 | va(ii,ij,jk) = ( va(ii,ij,jk) + zwgt * ( dta_bdy(ib_bdy)%v3d(jb,jk) - & |
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[4354] | 315 | vb(ii,ij,jk) + vb_b(ii,ij)) ) * vmask(ii,ij,jk) |
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[3651] | 316 | END DO |
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| 317 | END DO |
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| 318 | ENDIF |
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[6140] | 319 | END DO |
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[3651] | 320 | ! |
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[9090] | 321 | CALL lbc_lnk_multi( ua, 'U', -1., va, 'V', -1. ) ! Boundary points should be updated |
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[3651] | 322 | ! |
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[9124] | 323 | IF( ln_timing ) CALL timing_stop('bdy_dyn3d_dmp') |
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[6140] | 324 | ! |
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[3651] | 325 | END SUBROUTINE bdy_dyn3d_dmp |
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| 326 | |
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[9124] | 327 | |
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[7646] | 328 | SUBROUTINE bdy_dyn3d_nmn( idx, ib_bdy ) |
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| 329 | !!---------------------------------------------------------------------- |
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| 330 | !! *** SUBROUTINE bdy_dyn3d_nmn *** |
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| 331 | !! |
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| 332 | !! - Apply Neumann condition to baroclinic velocities. |
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| 333 | !! - Wrapper routine for bdy_nmn |
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| 334 | !! |
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| 335 | !! |
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| 336 | !!---------------------------------------------------------------------- |
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| 337 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 338 | INTEGER, INTENT(in) :: ib_bdy ! BDY set index |
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[3117] | 339 | |
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[7646] | 340 | INTEGER :: jb, igrd ! dummy loop indices |
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| 341 | !!---------------------------------------------------------------------- |
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| 342 | ! |
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| 343 | !! Note that at this stage the ub and ua arrays contain the baroclinic velocities. |
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| 344 | ! |
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| 345 | igrd = 2 ! Neumann bc on u-velocity; |
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| 346 | ! |
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| 347 | CALL bdy_nmn( idx, igrd, ua ) |
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| 348 | |
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| 349 | igrd = 3 ! Neumann bc on v-velocity |
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| 350 | ! |
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| 351 | CALL bdy_nmn( idx, igrd, va ) |
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| 352 | ! |
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| 353 | CALL lbc_bdy_lnk( ua, 'U', -1., ib_bdy ) ! Boundary points should be updated |
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| 354 | CALL lbc_bdy_lnk( va, 'V', -1., ib_bdy ) |
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| 355 | ! |
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| 356 | END SUBROUTINE bdy_dyn3d_nmn |
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| 357 | |
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[3117] | 358 | !!====================================================================== |
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| 359 | END MODULE bdydyn3d |
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