[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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[3117] | 7 | !!---------------------------------------------------------------------- |
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| 8 | #if defined key_bdy |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! 'key_bdy' : Unstructured Open Boundary Condition |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! bdy_dyn3d : apply open boundary conditions to baroclinic velocities |
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| 13 | !! bdy_dyn3d_frs : apply Flow Relaxation Scheme |
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| 14 | !!---------------------------------------------------------------------- |
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[3182] | 15 | USE timing ! Timing |
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[3117] | 16 | USE oce ! ocean dynamics and tracers |
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| 17 | USE dom_oce ! ocean space and time domain |
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| 18 | USE bdy_oce ! ocean open boundary conditions |
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| 19 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 20 | USE in_out_manager ! |
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| 21 | |
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| 22 | IMPLICIT NONE |
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| 23 | PRIVATE |
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| 24 | |
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[3191] | 25 | PUBLIC bdy_dyn3d ! routine called by bdy_dyn |
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[3117] | 26 | |
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| 27 | !!---------------------------------------------------------------------- |
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| 28 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 29 | !! $Id: bdydyn.F90 2528 2010-12-27 17:33:53Z rblod $ |
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| 30 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 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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| 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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| 46 | DO ib_bdy=1, nb_bdy |
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| 47 | |
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| 48 | !!$ IF ( using Orlanski radiation conditions ) THEN |
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| 49 | !!$ CALL bdy_rad( kt, bdyidx(ib_bdy) ) |
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| 50 | !!$ ENDIF |
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| 51 | |
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| 52 | SELECT CASE( nn_dyn3d(ib_bdy) ) |
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| 53 | CASE(jp_none) |
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| 54 | CYCLE |
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| 55 | CASE(jp_frs) |
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| 56 | CALL bdy_dyn3d_frs( idx_bdy(ib_bdy), dta_bdy(ib_bdy), kt ) |
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| 57 | CASE DEFAULT |
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| 58 | CALL ctl_stop( 'bdy_dyn3d : unrecognised option for open boundaries for baroclinic velocities' ) |
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| 59 | END SELECT |
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| 60 | ENDDO |
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| 61 | |
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| 62 | END SUBROUTINE bdy_dyn3d |
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| 63 | |
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| 64 | SUBROUTINE bdy_dyn3d_frs( idx, dta, kt ) |
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| 65 | !!---------------------------------------------------------------------- |
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| 66 | !! *** SUBROUTINE bdy_dyn3d_frs *** |
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| 67 | !! |
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| 68 | !! ** Purpose : - Apply the Flow Relaxation Scheme for baroclinic velocities |
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| 69 | !! at open boundaries. |
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| 70 | !! |
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| 71 | !! References :- Engedahl H., 1995: Use of the flow relaxation scheme in |
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| 72 | !! a three-dimensional baroclinic ocean model with realistic |
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| 73 | !! topography. Tellus, 365-382. |
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| 74 | !!---------------------------------------------------------------------- |
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| 75 | INTEGER :: kt |
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| 76 | TYPE(OBC_INDEX), INTENT(in) :: idx ! OBC indices |
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| 77 | TYPE(OBC_DATA), INTENT(in) :: dta ! OBC external data |
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| 78 | !! |
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| 79 | INTEGER :: jb, jk ! dummy loop indices |
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| 80 | INTEGER :: ii, ij, igrd ! local integers |
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| 81 | REAL(wp) :: zwgt ! boundary weight |
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| 82 | !!---------------------------------------------------------------------- |
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| 83 | ! |
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[3182] | 84 | IF( nn_timing == 1 ) CALL timing_start('bdy_dyn3d_frs') |
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[3117] | 85 | ! |
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| 86 | igrd = 2 ! Relaxation of zonal velocity |
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| 87 | DO jb = 1, idx%nblen(igrd) |
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| 88 | DO jk = 1, jpkm1 |
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| 89 | ii = idx%nbi(jb,igrd) |
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| 90 | ij = idx%nbj(jb,igrd) |
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| 91 | zwgt = idx%nbw(jb,igrd) |
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| 92 | 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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| 93 | END DO |
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| 94 | END DO |
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| 95 | ! |
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| 96 | igrd = 3 ! Relaxation of meridional velocity |
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| 97 | DO jb = 1, idx%nblen(igrd) |
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| 98 | DO jk = 1, jpkm1 |
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| 99 | ii = idx%nbi(jb,igrd) |
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| 100 | ij = idx%nbj(jb,igrd) |
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| 101 | zwgt = idx%nbw(jb,igrd) |
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| 102 | 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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| 103 | END DO |
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| 104 | END DO |
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| 105 | CALL lbc_lnk( ua, 'U', -1. ) ; CALL lbc_lnk( va, 'V', -1. ) ! Boundary points should be updated |
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| 106 | ! |
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| 107 | IF( kt .eq. nit000 ) CLOSE( unit = 102 ) |
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| 108 | |
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[3182] | 109 | IF( nn_timing == 1 ) CALL timing_stop('bdy_dyn3d_frs') |
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| 110 | |
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[3117] | 111 | END SUBROUTINE bdy_dyn3d_frs |
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| 112 | |
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| 113 | |
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| 114 | #else |
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| 115 | !!---------------------------------------------------------------------- |
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| 116 | !! Dummy module NO Unstruct Open Boundary Conditions |
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| 117 | !!---------------------------------------------------------------------- |
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| 118 | CONTAINS |
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| 119 | SUBROUTINE bdy_dyn3d( kt ) ! Empty routine |
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| 120 | WRITE(*,*) 'bdy_dyn_frs: You should not have seen this print! error?', kt |
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| 121 | END SUBROUTINE bdy_dyn3d |
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| 122 | #endif |
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| 123 | |
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| 124 | !!====================================================================== |
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| 125 | END MODULE bdydyn3d |
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