[3] | 1 | MODULE lbclnk |
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| 2 | !!====================================================================== |
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[232] | 3 | !! *** MODULE lbclnk *** |
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[3] | 4 | !! Ocean : lateral boundary conditions |
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| 5 | !!===================================================================== |
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[15] | 6 | #if defined key_mpp_mpi || defined key_mpp_shmem |
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[3] | 7 | !!---------------------------------------------------------------------- |
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[15] | 8 | !! 'key_mpp_mpi' OR MPI massively parallel processing library |
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| 9 | !! 'key_mpp_shmem' SHMEM massively parallel processing library |
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[3] | 10 | !!---------------------------------------------------------------------- |
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[15] | 11 | !!---------------------------------------------------------------------- |
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[3] | 12 | !! lbc_lnk : generic interface for mpp_lnk_3d and mpp_lnk_2d |
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| 13 | !! routines defined in lib_mpp |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | !! * Modules used |
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| 16 | USE lib_mpp ! distributed memory computing library |
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| 17 | |
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| 18 | INTERFACE lbc_lnk |
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| 19 | MODULE PROCEDURE mpp_lnk_3d, mpp_lnk_2d |
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| 20 | END INTERFACE |
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| 21 | |
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| 22 | PUBLIC lbc_lnk ! ocean lateral boundary conditions |
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| 23 | !!---------------------------------------------------------------------- |
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| 24 | |
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| 25 | #else |
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| 26 | !!---------------------------------------------------------------------- |
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| 27 | !! Default option shared memory computing |
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| 28 | !!---------------------------------------------------------------------- |
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| 29 | !! lbc_lnk : generic interface for lbc_lnk_3d and lbc_lnk_2d |
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| 30 | !! lbc_lnk_3d : set the lateral boundary condition on a 3D variable |
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| 31 | !! on OPA ocean mesh |
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| 32 | !! lbc_lnk_2d : set the lateral boundary condition on a 2D variable |
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| 33 | !! on OPA ocean mesh |
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| 34 | !!---------------------------------------------------------------------- |
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| 35 | !! * Modules used |
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| 36 | USE oce ! ocean dynamics and tracers |
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| 37 | USE dom_oce ! ocean space and time domain |
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| 38 | USE in_out_manager ! I/O manager |
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| 39 | |
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| 40 | IMPLICIT NONE |
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| 41 | PRIVATE |
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| 42 | |
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| 43 | INTERFACE lbc_lnk |
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| 44 | MODULE PROCEDURE lbc_lnk_3d, lbc_lnk_2d |
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| 45 | END INTERFACE |
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| 46 | |
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| 47 | PUBLIC lbc_lnk ! ocean/ice lateral boundary conditions |
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| 48 | !!---------------------------------------------------------------------- |
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| 49 | |
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| 50 | CONTAINS |
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| 51 | |
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| 52 | SUBROUTINE lbc_lnk_3d( pt3d, cd_type, psgn ) |
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| 53 | !!--------------------------------------------------------------------- |
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| 54 | !! *** ROUTINE lbc_lnk_3d *** |
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| 55 | !! |
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| 56 | !! ** Purpose : set lateral boundary conditions (non mpp case) |
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| 57 | !! |
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| 58 | !! ** Method : |
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| 59 | !! |
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| 60 | !! History : |
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| 61 | !! ! 97-06 (G. Madec) Original code |
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| 62 | !! 8.5 ! 02-09 (G. Madec) F90: Free form and module |
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| 63 | !!---------------------------------------------------------------------- |
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| 64 | !! * Arguments |
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| 65 | CHARACTER(len=1), INTENT( in ) :: & |
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| 66 | cd_type ! nature of pt3d grid-points |
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| 67 | ! ! = T , U , V , F or W gridpoints |
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| 68 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT( inout ) :: & |
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| 69 | pt3d ! 3D array on which the boundary condition is applied |
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| 70 | REAL(wp), INTENT( in ) :: & |
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| 71 | psgn ! control of the sign change |
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| 72 | ! ! =-1 , the sign is changed if north fold boundary |
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| 73 | ! ! = 1 , no sign change |
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[88] | 74 | ! ! = 0 , no sign change and > 0 required (use the inner |
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| 75 | ! ! row/column if closed boundary) |
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[3] | 76 | |
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| 77 | !! * Local declarations |
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| 78 | INTEGER :: ji, jk |
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| 79 | INTEGER :: ijt, iju |
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| 80 | !!---------------------------------------------------------------------- |
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[247] | 81 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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| 82 | !! $Header$ |
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| 83 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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[3] | 84 | !!---------------------------------------------------------------------- |
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| 85 | |
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| 86 | ! ! =============== |
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| 87 | DO jk = 1, jpk ! Horizontal slab |
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| 88 | ! ! =============== |
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| 89 | |
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| 90 | ! ! East-West boundaries |
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| 91 | ! ! ==================== |
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| 92 | SELECT CASE ( nperio ) |
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| 93 | |
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| 94 | CASE ( 1 , 4 , 6 ) ! * cyclic east-west |
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| 95 | pt3d( 1 ,:,jk) = pt3d(jpim1,:,jk) ! all points |
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| 96 | pt3d(jpi,:,jk) = pt3d( 2 ,:,jk) |
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| 97 | |
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| 98 | CASE DEFAULT ! * closed |
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| 99 | SELECT CASE ( cd_type ) |
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| 100 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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| 101 | pt3d( 1 ,:,jk) = 0.e0 |
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| 102 | pt3d(jpi,:,jk) = 0.e0 |
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| 103 | CASE ( 'F' ) ! F-point |
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| 104 | pt3d(jpi,:,jk) = 0.e0 |
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| 105 | END SELECT |
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| 106 | |
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| 107 | END SELECT |
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| 108 | |
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| 109 | ! ! North-South boundaries |
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| 110 | ! ! ====================== |
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| 111 | SELECT CASE ( nperio ) |
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| 112 | |
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| 113 | CASE ( 2 ) ! * south symmetric |
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| 114 | |
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| 115 | SELECT CASE ( cd_type ) |
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| 116 | CASE ( 'T' , 'U' , 'W' ) ! T-, U-, W-points |
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| 117 | pt3d(:, 1 ,jk) = pt3d(:,3,jk) |
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| 118 | pt3d(:,jpj,jk) = 0.e0 |
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| 119 | CASE ( 'V' , 'F' ) ! V-, F-points |
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| 120 | pt3d(:, 1 ,jk) = psgn * pt3d(:,2,jk) |
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| 121 | pt3d(:,jpj,jk) = 0.e0 |
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| 122 | END SELECT |
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| 123 | |
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[88] | 124 | CASE ( 3 , 4 ) ! * North fold T-point pivot |
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[3] | 125 | |
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| 126 | pt3d( 1 ,jpj,jk) = 0.e0 |
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| 127 | pt3d(jpi,jpj,jk) = 0.e0 |
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| 128 | |
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| 129 | SELECT CASE ( cd_type ) |
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| 130 | CASE ( 'T' , 'W' ) ! T-, W-point |
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| 131 | DO ji = 2, jpi |
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| 132 | ijt = jpi-ji+2 |
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| 133 | pt3d(ji, 1 ,jk) = 0.e0 |
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| 134 | pt3d(ji,jpj,jk) = psgn * pt3d(ijt,jpj-2,jk) |
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| 135 | END DO |
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| 136 | DO ji = jpi/2+1, jpi |
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| 137 | ijt = jpi-ji+2 |
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| 138 | pt3d(ji,jpjm1,jk) = psgn * pt3d(ijt,jpjm1,jk) |
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| 139 | END DO |
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| 140 | CASE ( 'U' ) ! U-point |
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| 141 | DO ji = 1, jpi-1 |
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| 142 | iju = jpi-ji+1 |
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| 143 | pt3d(ji, 1 ,jk) = 0.e0 |
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| 144 | pt3d(ji,jpj,jk) = psgn * pt3d(iju,jpj-2,jk) |
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| 145 | END DO |
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| 146 | DO ji = jpi/2, jpi-1 |
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| 147 | iju = jpi-ji+1 |
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| 148 | pt3d(ji,jpjm1,jk) = psgn * pt3d(iju,jpjm1,jk) |
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| 149 | END DO |
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| 150 | CASE ( 'V' ) ! V-point |
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| 151 | DO ji = 2, jpi |
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| 152 | ijt = jpi-ji+2 |
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| 153 | pt3d(ji, 1 ,jk) = 0.e0 |
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| 154 | pt3d(ji,jpj-1,jk) = psgn * pt3d(ijt,jpj-2,jk) |
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| 155 | pt3d(ji,jpj ,jk) = psgn * pt3d(ijt,jpj-3,jk) |
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| 156 | END DO |
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| 157 | CASE ( 'F' ) ! F-point |
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| 158 | DO ji = 1, jpi-1 |
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| 159 | iju = jpi-ji+1 |
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[232] | 160 | pt3d(ji,jpj-1,jk) = psgn * pt3d(iju,jpj-2,jk) |
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| 161 | pt3d(ji,jpj ,jk) = psgn * pt3d(iju,jpj-3,jk) |
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[3] | 162 | END DO |
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| 163 | END SELECT |
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| 164 | |
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| 165 | CASE ( 5 , 6 ) ! * North fold F-point pivot |
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| 166 | |
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| 167 | pt3d( 1 ,jpj,jk) = 0.e0 |
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| 168 | pt3d(jpi,jpj,jk) = 0.e0 |
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| 169 | |
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| 170 | SELECT CASE ( cd_type ) |
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| 171 | CASE ( 'T' , 'W' ) ! T-, W-point |
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| 172 | DO ji = 1, jpi |
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| 173 | ijt = jpi-ji+1 |
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| 174 | pt3d(ji, 1 ,jk) = 0.e0 |
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| 175 | pt3d(ji,jpj,jk) = psgn * pt3d(ijt,jpj-1,jk) |
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| 176 | END DO |
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| 177 | CASE ( 'U' ) ! U-point |
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| 178 | DO ji = 1, jpi-1 |
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| 179 | iju = jpi-ji |
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| 180 | pt3d(ji, 1 ,jk) = 0.e0 |
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| 181 | pt3d(ji,jpj,jk) = psgn * pt3d(iju,jpj-1,jk) |
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| 182 | END DO |
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| 183 | CASE ( 'V' ) ! V-point |
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| 184 | DO ji = 1, jpi |
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| 185 | ijt = jpi-ji+1 |
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| 186 | pt3d(ji, 1 ,jk) = 0.e0 |
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| 187 | pt3d(ji,jpj,jk) = psgn * pt3d(ijt,jpj-2,jk) |
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| 188 | END DO |
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| 189 | DO ji = jpi/2+1, jpi |
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| 190 | ijt = jpi-ji+1 |
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| 191 | pt3d(ji,jpjm1,jk) = psgn * pt3d(ijt,jpjm1,jk) |
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| 192 | END DO |
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| 193 | CASE ( 'F' ) ! F-point |
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| 194 | DO ji = 1, jpi-1 |
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| 195 | iju = jpi-ji |
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[232] | 196 | pt3d(ji,jpj ,jk) = psgn * pt3d(iju,jpj-2,jk) |
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[3] | 197 | END DO |
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| 198 | DO ji = jpi/2+1, jpi-1 |
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| 199 | iju = jpi-ji |
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[232] | 200 | pt3d(ji,jpjm1,jk) = psgn * pt3d(iju,jpjm1,jk) |
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[3] | 201 | END DO |
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| 202 | END SELECT |
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| 203 | |
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[88] | 204 | CASE DEFAULT ! * closed |
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[3] | 205 | |
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| 206 | SELECT CASE ( cd_type ) |
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| 207 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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| 208 | pt3d(:, 1 ,jk) = 0.e0 |
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| 209 | pt3d(:,jpj,jk) = 0.e0 |
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| 210 | CASE ( 'F' ) ! F-point |
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| 211 | pt3d(:,jpj,jk) = 0.e0 |
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| 212 | END SELECT |
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| 213 | |
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| 214 | END SELECT |
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| 215 | ! ! =============== |
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| 216 | END DO ! End of slab |
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| 217 | ! ! =============== |
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| 218 | END SUBROUTINE lbc_lnk_3d |
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| 219 | |
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| 220 | |
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| 221 | SUBROUTINE lbc_lnk_2d( pt2d, cd_type, psgn ) |
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| 222 | !!--------------------------------------------------------------------- |
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| 223 | !! *** ROUTINE lbc_lnk_2d *** |
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| 224 | !! |
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| 225 | !! ** Purpose : set lateral boundary conditions (non mpp case) |
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| 226 | !! |
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| 227 | !! ** Method : |
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| 228 | !! |
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| 229 | !! History : |
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| 230 | !! ! 97-06 (G. Madec) Original code |
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| 231 | !! ! 01-05 (E. Durand) correction |
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| 232 | !! 8.5 ! 02-09 (G. Madec) F90: Free form and module |
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| 233 | !!---------------------------------------------------------------------- |
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| 234 | !! * Arguments |
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| 235 | CHARACTER(len=1), INTENT( in ) :: & |
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| 236 | cd_type ! nature of pt2d grid-point |
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| 237 | ! ! = T , U , V , F or W gridpoints |
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| 238 | ! ! = I sea-ice U-V gridpoint (= F ocean grid point with indice shift) |
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| 239 | REAL(wp), INTENT( in ) :: & |
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| 240 | psgn ! control of the sign change |
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| 241 | ! ! =-1 , the sign is modified following the type of b.c. used |
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| 242 | ! ! = 1 , no sign change |
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| 243 | REAL(wp), DIMENSION(jpi,jpj), INTENT( inout ) :: & |
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| 244 | pt2d ! 2D array on which the boundary condition is applied |
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| 245 | |
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| 246 | !! * Local declarations |
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| 247 | INTEGER :: ji |
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| 248 | INTEGER :: ijt, iju |
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| 249 | !!---------------------------------------------------------------------- |
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| 250 | !! OPA 8.5, LODYC-IPSL (2002) |
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| 251 | !!---------------------------------------------------------------------- |
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| 252 | |
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| 253 | |
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| 254 | ! ! East-West boundaries |
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| 255 | ! ! ==================== |
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| 256 | SELECT CASE ( nperio ) |
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| 257 | |
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| 258 | CASE ( 1 , 4 , 6 ) ! * cyclic east-west |
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| 259 | pt2d( 1 ,:) = pt2d(jpim1,:) |
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| 260 | pt2d(jpi,:) = pt2d( 2 ,:) |
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| 261 | |
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| 262 | CASE DEFAULT ! * closed |
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| 263 | SELECT CASE ( cd_type ) |
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| 264 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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| 265 | pt2d( 1 ,:) = 0.e0 |
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| 266 | pt2d(jpi,:) = 0.e0 |
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[88] | 267 | CASE ( 'F' ) ! F-point, ice U-V point |
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[3] | 268 | pt2d(jpi,:) = 0.e0 |
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[88] | 269 | CASE ( 'I' ) ! F-point, ice U-V point |
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| 270 | pt2d( 1 ,:) = 0.e0 |
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| 271 | pt2d(jpi,:) = 0.e0 |
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[3] | 272 | END SELECT |
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| 273 | |
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| 274 | END SELECT |
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| 275 | |
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| 276 | ! ! North-South boundaries |
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| 277 | ! ! ====================== |
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| 278 | SELECT CASE ( nperio ) |
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| 279 | |
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| 280 | CASE ( 2 ) ! * South symmetric |
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| 281 | |
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| 282 | SELECT CASE ( cd_type ) |
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| 283 | CASE ( 'T' , 'U' , 'W' ) ! T-, U-, W-points |
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| 284 | pt2d(:, 1 ) = pt2d(:,3) |
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| 285 | pt2d(:,jpj) = 0.e0 |
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[88] | 286 | CASE ( 'V' , 'F' , 'I' ) ! V-, F-points, ice U-V point |
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[3] | 287 | pt2d(:, 1 ) = psgn * pt2d(:,2) |
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| 288 | pt2d(:,jpj) = 0.e0 |
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| 289 | END SELECT |
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| 290 | |
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| 291 | CASE ( 3 , 4 ) ! * North fold T-point pivot |
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| 292 | |
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| 293 | pt2d( 1 , 1 ) = 0.e0 !!!!! bug gm ??? !Edmee |
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| 294 | pt2d( 1 ,jpj) = 0.e0 |
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| 295 | pt2d(jpi,jpj) = 0.e0 |
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| 296 | |
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| 297 | SELECT CASE ( cd_type ) |
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| 298 | |
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| 299 | CASE ( 'T' , 'W' ) ! T-, W-point |
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| 300 | DO ji = 2, jpi |
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| 301 | ijt = jpi-ji+2 |
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| 302 | pt2d(ji, 1 ) = 0.e0 |
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| 303 | pt2d(ji,jpj) = psgn * pt2d(ijt,jpj-2) |
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| 304 | END DO |
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| 305 | DO ji = jpi/2+1, jpi |
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| 306 | ijt = jpi-ji+2 |
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| 307 | pt2d(ji,jpjm1) = psgn * pt2d(ijt,jpjm1) |
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| 308 | END DO |
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| 309 | |
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| 310 | CASE ( 'U' ) ! U-point |
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| 311 | DO ji = 1, jpi-1 |
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| 312 | iju = jpi-ji+1 |
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| 313 | pt2d(ji, 1 ) = 0.e0 |
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| 314 | pt2d(ji,jpj) = psgn * pt2d(iju,jpj-2) |
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| 315 | END DO |
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| 316 | DO ji = jpi/2, jpi-1 |
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| 317 | iju = jpi-ji+1 |
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| 318 | pt2d(ji,jpjm1) = psgn * pt2d(iju,jpjm1) |
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| 319 | END DO |
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| 320 | |
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| 321 | CASE ( 'V' ) ! V-point |
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| 322 | DO ji = 2, jpi |
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| 323 | ijt = jpi-ji+2 |
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| 324 | pt2d(ji, 1 ) = 0.e0 |
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| 325 | pt2d(ji,jpj-1) = psgn * pt2d(ijt,jpj-2) |
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| 326 | pt2d(ji,jpj ) = psgn * pt2d(ijt,jpj-3) |
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| 327 | END DO |
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| 328 | |
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| 329 | CASE ( 'F' ) ! F-point |
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| 330 | DO ji = 1, jpi-1 |
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| 331 | iju = jpi - ji + 1 |
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[232] | 332 | pt2d(ji,jpj-1) = psgn * pt2d(iju,jpj-2) |
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| 333 | pt2d(ji,jpj ) = psgn * pt2d(iju,jpj-3) |
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[3] | 334 | END DO |
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| 335 | |
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| 336 | CASE ( 'I' ) ! ice U-V point |
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[288] | 337 | pt2d(:, 1 ) = 0.e0 |
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[3] | 338 | pt2d(2,jpj) = psgn * pt2d(3,jpj-1) |
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| 339 | DO ji = 3, jpi |
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| 340 | iju = jpi - ji + 3 |
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| 341 | pt2d(ji,jpj) = psgn * pt2d(iju,jpj-1) |
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| 342 | END DO |
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| 343 | |
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| 344 | END SELECT |
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| 345 | |
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| 346 | CASE ( 5 , 6 ) ! * North fold F-point pivot |
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| 347 | |
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| 348 | pt2d( 1 , 1 ) = 0.e0 !!bug ??? |
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| 349 | pt2d( 1 ,jpj) = 0.e0 |
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| 350 | pt2d(jpi,jpj) = 0.e0 |
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| 351 | |
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| 352 | SELECT CASE ( cd_type ) |
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| 353 | |
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| 354 | CASE ( 'T' , 'W' ) ! T-, W-point |
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| 355 | DO ji = 1, jpi |
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| 356 | ijt = jpi-ji+1 |
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| 357 | pt2d(ji, 1 ) = 0.e0 |
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| 358 | pt2d(ji,jpj) = psgn * pt2d(ijt,jpj-1) |
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| 359 | END DO |
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| 360 | |
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| 361 | CASE ( 'U' ) ! U-point |
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| 362 | DO ji = 1, jpi-1 |
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| 363 | iju = jpi-ji |
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| 364 | pt2d(ji, 1 ) = 0.e0 |
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| 365 | pt2d(ji,jpj) = psgn * pt2d(iju,jpj-1) |
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| 366 | END DO |
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| 367 | |
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| 368 | CASE ( 'V' ) ! V-point |
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| 369 | DO ji = 1, jpi |
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| 370 | ijt = jpi-ji+1 |
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| 371 | pt2d(ji, 1 ) = 0.e0 |
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| 372 | pt2d(ji,jpj) = psgn * pt2d(ijt,jpj-2) |
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| 373 | END DO |
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| 374 | DO ji = jpi/2+1, jpi |
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| 375 | ijt = jpi-ji+1 |
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| 376 | pt2d(ji,jpjm1) = psgn * pt2d(ijt,jpjm1) |
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| 377 | END DO |
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| 378 | |
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| 379 | CASE ( 'F' ) ! F-point |
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| 380 | DO ji = 1, jpi-1 |
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| 381 | iju = jpi-ji |
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[232] | 382 | pt2d(ji,jpj ) = psgn * pt2d(iju,jpj-2) |
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[3] | 383 | END DO |
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| 384 | DO ji = jpi/2+1, jpi-1 |
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| 385 | iju = jpi-ji |
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[232] | 386 | pt2d(ji,jpjm1) = psgn * pt2d(iju,jpjm1) |
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[3] | 387 | END DO |
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| 388 | |
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| 389 | CASE ( 'I' ) ! ice U-V point |
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[288] | 390 | pt2d( : , 1 ) = 0.e0 |
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[232] | 391 | pt2d( 2 ,jpj) = 0.e0 |
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| 392 | DO ji = 2 , jpim1 |
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| 393 | ijt = jpi - ji + 2 |
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[3] | 394 | pt2d(ji,jpj)= 0.5 * ( pt2d(ji,jpjm1) + psgn * pt2d(ijt,jpjm1) ) |
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| 395 | END DO |
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| 396 | |
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| 397 | END SELECT |
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| 398 | |
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| 399 | CASE DEFAULT ! * closed |
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| 400 | |
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| 401 | SELECT CASE ( cd_type ) |
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| 402 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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| 403 | pt2d(:, 1 ) = 0.e0 |
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| 404 | pt2d(:,jpj) = 0.e0 |
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| 405 | CASE ( 'F' ) ! F-point |
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| 406 | pt2d(:,jpj) = 0.e0 |
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| 407 | CASE ( 'I' ) ! ice U-V point |
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| 408 | pt2d(:, 1 ) = 0.e0 |
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| 409 | pt2d(:,jpj) = 0.e0 |
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| 410 | END SELECT |
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| 411 | |
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| 412 | END SELECT |
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| 413 | |
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| 414 | END SUBROUTINE lbc_lnk_2d |
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| 415 | |
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| 416 | #endif |
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| 417 | |
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| 418 | !!====================================================================== |
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| 419 | END MODULE lbclnk |
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