[1344] | 1 | MODULE lbcnfd |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE lbcnfd *** |
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| 4 | !! Ocean : north fold boundary conditions |
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| 5 | !!====================================================================== |
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[2413] | 6 | !! History : 3.2 ! 2009-03 (R. Benshila) Original code |
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[1344] | 7 | !!---------------------------------------------------------------------- |
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| 8 | |
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[2413] | 9 | !!---------------------------------------------------------------------- |
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| 10 | !! lbc_nfd : generic interface for lbc_nfd_3d and lbc_nfd_2d routines |
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| 11 | !! lbc_nfd_3d : lateral boundary condition: North fold treatment for a 3D arrays (lbc_nfd) |
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| 12 | !! lbc_nfd_2d : lateral boundary condition: North fold treatment for a 2D arrays (lbc_nfd) |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | USE dom_oce ! ocean space and time domain |
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| 15 | USE in_out_manager ! I/O manager |
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| 16 | |
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[1344] | 17 | IMPLICIT NONE |
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| 18 | PRIVATE |
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| 19 | |
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| 20 | INTERFACE lbc_nfd |
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[2413] | 21 | MODULE PROCEDURE lbc_nfd_3d, lbc_nfd_2d |
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[1344] | 22 | END INTERFACE |
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| 23 | |
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[2413] | 24 | PUBLIC lbc_nfd ! north fold conditions |
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[2287] | 25 | |
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[3211] | 26 | !! * Control permutation of array indices |
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| 27 | # include "dom_oce_ftrans.h90" |
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| 28 | |
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[1344] | 29 | !!---------------------------------------------------------------------- |
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[2287] | 30 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 31 | !! $Id$ |
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[2413] | 32 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[2287] | 33 | !!---------------------------------------------------------------------- |
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[1344] | 34 | CONTAINS |
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| 35 | |
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| 36 | SUBROUTINE lbc_nfd_3d( pt3d, cd_type, psgn ) |
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| 37 | !!---------------------------------------------------------------------- |
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| 38 | !! *** routine lbc_nfd_3d *** |
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| 39 | !! |
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| 40 | !! ** Purpose : 3D lateral boundary condition : North fold treatment |
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[2413] | 41 | !! without processor exchanges. |
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[1344] | 42 | !! |
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| 43 | !! ** Method : |
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| 44 | !! |
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[2413] | 45 | !! ** Action : pt3d with updated values along the north fold |
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[1344] | 46 | !!---------------------------------------------------------------------- |
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[2413] | 47 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! define the nature of ptab array grid-points |
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| 48 | ! ! = T , U , V , F , W points |
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| 49 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign change |
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| 50 | ! ! = -1. , the sign is changed if north fold boundary |
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| 51 | ! ! = 1. , the sign is kept if north fold boundary |
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[3211] | 52 | !FTRANS pt3d :I :I :z |
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[2413] | 53 | REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: pt3d ! 3D array on which the boundary condition is applied |
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| 54 | ! |
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[1344] | 55 | INTEGER :: ji, jk |
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| 56 | INTEGER :: ijt, iju, ijpj, ijpjm1 |
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[2413] | 57 | !!---------------------------------------------------------------------- |
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[1344] | 58 | |
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| 59 | SELECT CASE ( jpni ) |
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[2413] | 60 | CASE ( 1 ) ; ijpj = nlcj ! 1 proc only along the i-direction |
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| 61 | CASE DEFAULT ; ijpj = 4 ! several proc along the i-direction |
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[1344] | 62 | END SELECT |
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| 63 | ijpjm1 = ijpj-1 |
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| 64 | |
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[3211] | 65 | #if !defined key_z_first |
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[1344] | 66 | DO jk = 1, jpk |
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[3211] | 67 | #endif |
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[2413] | 68 | ! |
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[1344] | 69 | SELECT CASE ( npolj ) |
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[2413] | 70 | ! |
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[1344] | 71 | CASE ( 3 , 4 ) ! * North fold T-point pivot |
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[2413] | 72 | ! |
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[1344] | 73 | SELECT CASE ( cd_type ) |
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| 74 | CASE ( 'T' , 'W' ) ! T-, W-point |
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| 75 | DO ji = 2, jpiglo |
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| 76 | ijt = jpiglo-ji+2 |
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[3211] | 77 | #if defined key_z_first |
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| 78 | DO jk = 1, jpk |
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| 79 | pt3d(ji,ijpj,jk) = psgn * pt3d(ijt,ijpj-2,jk) |
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| 80 | END DO |
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| 81 | #else |
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[1344] | 82 | pt3d(ji,ijpj,jk) = psgn * pt3d(ijt,ijpj-2,jk) |
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[3211] | 83 | #endif |
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[1344] | 84 | END DO |
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| 85 | DO ji = jpiglo/2+1, jpiglo |
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| 86 | ijt = jpiglo-ji+2 |
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[3211] | 87 | #if defined key_z_first |
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| 88 | DO jk = 1, jpk |
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| 89 | pt3d(ji,ijpjm1,jk) = psgn * pt3d(ijt,ijpjm1,jk) |
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| 90 | END DO |
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| 91 | #else |
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[1344] | 92 | pt3d(ji,ijpjm1,jk) = psgn * pt3d(ijt,ijpjm1,jk) |
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[3211] | 93 | #endif |
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[1344] | 94 | END DO |
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| 95 | CASE ( 'U' ) ! U-point |
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| 96 | DO ji = 1, jpiglo-1 |
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| 97 | iju = jpiglo-ji+1 |
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[3211] | 98 | #if defined key_z_first |
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| 99 | DO jk = 1, jpk |
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| 100 | pt3d(ji,ijpj,jk) = psgn * pt3d(iju,ijpj-2,jk) |
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| 101 | END DO |
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| 102 | #else |
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[1344] | 103 | pt3d(ji,ijpj,jk) = psgn * pt3d(iju,ijpj-2,jk) |
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[3211] | 104 | #endif |
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[1344] | 105 | END DO |
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| 106 | DO ji = jpiglo/2, jpiglo-1 |
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| 107 | iju = jpiglo-ji+1 |
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[3211] | 108 | #if defined key_z_first |
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| 109 | DO jk = 1, jpk |
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| 110 | pt3d(ji,ijpjm1,jk) = psgn * pt3d(iju,ijpjm1,jk) |
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| 111 | END DO |
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| 112 | #else |
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[1344] | 113 | pt3d(ji,ijpjm1,jk) = psgn * pt3d(iju,ijpjm1,jk) |
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[3211] | 114 | #endif |
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[1344] | 115 | END DO |
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| 116 | CASE ( 'V' ) ! V-point |
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| 117 | DO ji = 2, jpiglo |
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| 118 | ijt = jpiglo-ji+2 |
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[3211] | 119 | #if defined key_z_first |
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| 120 | DO jk = 1, jpk |
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| 121 | pt3d(ji,ijpj-1,jk) = psgn * pt3d(ijt,ijpj-2,jk) |
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| 122 | pt3d(ji,ijpj ,jk) = psgn * pt3d(ijt,ijpj-3,jk) |
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| 123 | END DO |
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| 124 | #else |
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[1344] | 125 | pt3d(ji,ijpj-1,jk) = psgn * pt3d(ijt,ijpj-2,jk) |
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| 126 | pt3d(ji,ijpj ,jk) = psgn * pt3d(ijt,ijpj-3,jk) |
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[3211] | 127 | #endif |
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[1344] | 128 | END DO |
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| 129 | CASE ( 'F' ) ! F-point |
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| 130 | DO ji = 1, jpiglo-1 |
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| 131 | iju = jpiglo-ji+1 |
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[3211] | 132 | #if defined key_z_first |
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| 133 | DO jk = 1, jpk |
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| 134 | pt3d(ji,ijpj-1,jk) = psgn * pt3d(iju,ijpj-2,jk) |
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| 135 | pt3d(ji,ijpj ,jk) = psgn * pt3d(iju,ijpj-3,jk) |
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| 136 | END DO |
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| 137 | #else |
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[1344] | 138 | pt3d(ji,ijpj-1,jk) = psgn * pt3d(iju,ijpj-2,jk) |
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| 139 | pt3d(ji,ijpj ,jk) = psgn * pt3d(iju,ijpj-3,jk) |
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[3211] | 140 | #endif |
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[1344] | 141 | END DO |
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| 142 | END SELECT |
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[2413] | 143 | ! |
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[1344] | 144 | CASE ( 5 , 6 ) ! * North fold F-point pivot |
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[2413] | 145 | ! |
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[1344] | 146 | SELECT CASE ( cd_type ) |
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| 147 | CASE ( 'T' , 'W' ) ! T-, W-point |
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| 148 | DO ji = 1, jpiglo |
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| 149 | ijt = jpiglo-ji+1 |
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[3211] | 150 | #if defined key_z_first |
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| 151 | DO jk = 1, jpk |
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| 152 | pt3d(ji,ijpj,jk) = psgn * pt3d(ijt,ijpj-1,jk) |
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| 153 | END DO |
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| 154 | #else |
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[1344] | 155 | pt3d(ji,ijpj,jk) = psgn * pt3d(ijt,ijpj-1,jk) |
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[3211] | 156 | #endif |
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[1344] | 157 | END DO |
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| 158 | CASE ( 'U' ) ! U-point |
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| 159 | DO ji = 1, jpiglo-1 |
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| 160 | iju = jpiglo-ji |
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[3211] | 161 | #if defined key_z_first |
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| 162 | DO jk = 1, jpk |
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| 163 | pt3d(ji,ijpj,jk) = psgn * pt3d(iju,ijpj-1,jk) |
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| 164 | END DO |
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| 165 | #else |
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[1344] | 166 | pt3d(ji,ijpj,jk) = psgn * pt3d(iju,ijpj-1,jk) |
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[3211] | 167 | #endif |
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[1344] | 168 | END DO |
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| 169 | CASE ( 'V' ) ! V-point |
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| 170 | DO ji = 1, jpiglo |
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| 171 | ijt = jpiglo-ji+1 |
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[3211] | 172 | #if defined key_z_first |
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| 173 | DO jk = 1, jpk |
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| 174 | pt3d(ji,ijpj,jk) = psgn * pt3d(ijt,ijpj-2,jk) |
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| 175 | END DO |
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| 176 | #else |
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[1344] | 177 | pt3d(ji,ijpj,jk) = psgn * pt3d(ijt,ijpj-2,jk) |
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[3211] | 178 | #endif |
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[1344] | 179 | END DO |
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| 180 | DO ji = jpiglo/2+1, jpiglo |
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| 181 | ijt = jpiglo-ji+1 |
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[3211] | 182 | #if defined key_z_first |
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| 183 | DO jk = 1, jpk |
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| 184 | pt3d(ji,ijpjm1,jk) = psgn * pt3d(ijt,ijpjm1,jk) |
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| 185 | END DO |
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| 186 | #else |
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[1344] | 187 | pt3d(ji,ijpjm1,jk) = psgn * pt3d(ijt,ijpjm1,jk) |
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[3211] | 188 | #endif |
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[1344] | 189 | END DO |
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| 190 | CASE ( 'F' ) ! F-point |
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| 191 | DO ji = 1, jpiglo-1 |
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| 192 | iju = jpiglo-ji |
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[3211] | 193 | #if defined key_z_first |
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| 194 | DO jk = 1, jpk |
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| 195 | pt3d(ji,ijpj ,jk) = psgn * pt3d(iju,ijpj-2,jk) |
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| 196 | END DO |
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| 197 | #else |
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[1344] | 198 | pt3d(ji,ijpj ,jk) = psgn * pt3d(iju,ijpj-2,jk) |
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[3211] | 199 | #endif |
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[1344] | 200 | END DO |
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| 201 | DO ji = jpiglo/2+1, jpiglo-1 |
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| 202 | iju = jpiglo-ji |
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[3211] | 203 | #if defined key_z_first |
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| 204 | DO jk = 1, jpk |
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| 205 | pt3d(ji,ijpjm1,jk) = psgn * pt3d(iju,ijpjm1,jk) |
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| 206 | END DO |
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| 207 | #else |
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[1344] | 208 | pt3d(ji,ijpjm1,jk) = psgn * pt3d(iju,ijpjm1,jk) |
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[3211] | 209 | #endif |
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[1344] | 210 | END DO |
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| 211 | END SELECT |
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[2413] | 212 | ! |
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[1344] | 213 | CASE DEFAULT ! * closed : the code probably never go through |
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[2413] | 214 | ! |
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[1344] | 215 | SELECT CASE ( cd_type) |
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| 216 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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[3211] | 217 | #if defined key_z_first |
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| 218 | pt3d(:, 1 ,:) = 0.e0 |
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| 219 | pt3d(:,ijpj,:) = 0.e0 |
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| 220 | #else |
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[1344] | 221 | pt3d(:, 1 ,jk) = 0.e0 |
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| 222 | pt3d(:,ijpj,jk) = 0.e0 |
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[3211] | 223 | #endif |
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[1344] | 224 | CASE ( 'F' ) ! F-point |
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[3211] | 225 | #if defined key_z_first |
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| 226 | pt3d(:,ijpj,:) = 0.e0 |
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| 227 | #else |
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[1344] | 228 | pt3d(:,ijpj,jk) = 0.e0 |
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[3211] | 229 | #endif |
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[1344] | 230 | END SELECT |
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[2413] | 231 | ! |
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[1344] | 232 | END SELECT ! npolj |
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[2413] | 233 | ! |
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[3211] | 234 | #if !defined key_z_first |
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[1344] | 235 | END DO |
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[3211] | 236 | #endif |
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[2413] | 237 | ! |
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[1344] | 238 | END SUBROUTINE lbc_nfd_3d |
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| 239 | |
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| 240 | |
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| 241 | SUBROUTINE lbc_nfd_2d( pt2d, cd_type, psgn, pr2dj ) |
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| 242 | !!---------------------------------------------------------------------- |
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| 243 | !! *** routine lbc_nfd_2d *** |
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| 244 | !! |
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| 245 | !! ** Purpose : 2D lateral boundary condition : North fold treatment |
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| 246 | !! without processor exchanges. |
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| 247 | !! |
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| 248 | !! ** Method : |
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| 249 | !! |
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[2413] | 250 | !! ** Action : pt2d with updated values along the north fold |
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[1344] | 251 | !!---------------------------------------------------------------------- |
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[2413] | 252 | CHARACTER(len=1) , INTENT(in ) :: cd_type ! define the nature of ptab array grid-points |
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| 253 | ! ! = T , U , V , F , W points |
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| 254 | REAL(wp) , INTENT(in ) :: psgn ! control of the sign change |
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| 255 | ! ! = -1. , the sign is changed if north fold boundary |
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| 256 | ! ! = 1. , the sign is kept if north fold boundary |
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| 257 | REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt2d ! 2D array on which the boundary condition is applied |
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| 258 | INTEGER , OPTIONAL , INTENT(in ) :: pr2dj ! number of additional halos |
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| 259 | ! |
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[1344] | 260 | INTEGER :: ji, jl, ipr2dj |
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| 261 | INTEGER :: ijt, iju, ijpj, ijpjm1 |
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[2413] | 262 | !!---------------------------------------------------------------------- |
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[1344] | 263 | |
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| 264 | SELECT CASE ( jpni ) |
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[2413] | 265 | CASE ( 1 ) ; ijpj = nlcj ! 1 proc only along the i-direction |
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| 266 | CASE DEFAULT ; ijpj = 4 ! several proc along the i-direction |
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[1344] | 267 | END SELECT |
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[2413] | 268 | ! |
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| 269 | IF( PRESENT(pr2dj) ) THEN ! use of additional halos |
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[1344] | 270 | ipr2dj = pr2dj |
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[2413] | 271 | IF( jpni > 1 ) ijpj = ijpj + ipr2dj |
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[1344] | 272 | ELSE |
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| 273 | ipr2dj = 0 |
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| 274 | ENDIF |
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[2413] | 275 | ! |
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[1344] | 276 | ijpjm1 = ijpj-1 |
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| 277 | |
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| 278 | |
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| 279 | SELECT CASE ( npolj ) |
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[2413] | 280 | ! |
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[1344] | 281 | CASE ( 3, 4 ) ! * North fold T-point pivot |
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[2413] | 282 | ! |
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[1344] | 283 | SELECT CASE ( cd_type ) |
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[2413] | 284 | ! |
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| 285 | CASE ( 'T' , 'W' ) ! T- , W-points |
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[1344] | 286 | DO jl = 0, ipr2dj |
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| 287 | DO ji = 2, jpiglo |
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| 288 | ijt=jpiglo-ji+2 |
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| 289 | pt2d(ji,ijpj+jl) = psgn * pt2d(ijt,ijpj-2-jl) |
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| 290 | END DO |
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| 291 | END DO |
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| 292 | DO ji = jpiglo/2+1, jpiglo |
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| 293 | ijt=jpiglo-ji+2 |
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| 294 | pt2d(ji,ijpj-1) = psgn * pt2d(ijt,ijpj-1) |
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| 295 | END DO |
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| 296 | CASE ( 'U' ) ! U-point |
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[2413] | 297 | DO jl = 0, ipr2dj |
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[1344] | 298 | DO ji = 1, jpiglo-1 |
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| 299 | iju = jpiglo-ji+1 |
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| 300 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-2-jl) |
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| 301 | END DO |
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| 302 | END DO |
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| 303 | DO ji = jpiglo/2, jpiglo-1 |
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| 304 | iju = jpiglo-ji+1 |
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| 305 | pt2d(ji,ijpjm1) = psgn * pt2d(iju,ijpjm1) |
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| 306 | END DO |
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| 307 | CASE ( 'V' ) ! V-point |
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[2413] | 308 | DO jl = -1, ipr2dj |
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[1344] | 309 | DO ji = 2, jpiglo |
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| 310 | ijt = jpiglo-ji+2 |
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| 311 | pt2d(ji,ijpj+jl) = psgn * pt2d(ijt,ijpj-3-jl) |
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| 312 | END DO |
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| 313 | END DO |
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[2413] | 314 | CASE ( 'F' ) ! F-point |
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| 315 | DO jl = -1, ipr2dj |
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[1344] | 316 | DO ji = 1, jpiglo-1 |
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| 317 | iju = jpiglo-ji+1 |
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| 318 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-3-jl) |
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| 319 | END DO |
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| 320 | END DO |
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[2413] | 321 | CASE ( 'I' ) ! ice U-V point (I-point) |
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| 322 | DO jl = 0, ipr2dj |
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[1344] | 323 | pt2d(2,ijpj+jl) = psgn * pt2d(3,ijpj-1+jl) |
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| 324 | DO ji = 3, jpiglo |
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| 325 | iju = jpiglo - ji + 3 |
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| 326 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-1-jl) |
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| 327 | END DO |
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| 328 | END DO |
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| 329 | END SELECT |
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[2413] | 330 | ! |
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[1344] | 331 | CASE ( 5, 6 ) ! * North fold F-point pivot |
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[2413] | 332 | ! |
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[1344] | 333 | SELECT CASE ( cd_type ) |
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[2413] | 334 | CASE ( 'T' , 'W' ) ! T-, W-point |
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[1344] | 335 | DO jl = 0, ipr2dj |
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| 336 | DO ji = 1, jpiglo |
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| 337 | ijt = jpiglo-ji+1 |
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| 338 | pt2d(ji,ijpj+jl) = psgn * pt2d(ijt,ijpj-1-jl) |
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| 339 | END DO |
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| 340 | END DO |
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| 341 | CASE ( 'U' ) ! U-point |
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| 342 | DO jl = 0, ipr2dj |
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| 343 | DO ji = 1, jpiglo-1 |
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| 344 | iju = jpiglo-ji |
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| 345 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-1-jl) |
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| 346 | END DO |
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| 347 | END DO |
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| 348 | CASE ( 'V' ) ! V-point |
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| 349 | DO jl = 0, ipr2dj |
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| 350 | DO ji = 1, jpiglo |
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| 351 | ijt = jpiglo-ji+1 |
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| 352 | pt2d(ji,ijpj+jl) = psgn * pt2d(ijt,ijpj-2-jl) |
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| 353 | END DO |
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| 354 | END DO |
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| 355 | DO ji = jpiglo/2+1, jpiglo |
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| 356 | ijt = jpiglo-ji+1 |
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| 357 | pt2d(ji,ijpjm1) = psgn * pt2d(ijt,ijpjm1) |
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| 358 | END DO |
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[2413] | 359 | CASE ( 'F' ) ! F-point |
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[1344] | 360 | DO jl = 0, ipr2dj |
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| 361 | DO ji = 1, jpiglo-1 |
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| 362 | iju = jpiglo-ji |
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| 363 | pt2d(ji,ijpj+jl) = psgn * pt2d(iju,ijpj-2-jl) |
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| 364 | END DO |
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| 365 | END DO |
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| 366 | DO ji = jpiglo/2+1, jpiglo-1 |
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| 367 | iju = jpiglo-ji |
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| 368 | pt2d(ji,ijpjm1) = psgn * pt2d(iju,ijpjm1) |
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| 369 | END DO |
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[2413] | 370 | CASE ( 'I' ) ! ice U-V point (I-point) |
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[1344] | 371 | pt2d( 2 ,ijpj:ijpj+ipr2dj) = 0.e0 |
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| 372 | DO jl = 0, ipr2dj |
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| 373 | DO ji = 2 , jpiglo-1 |
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| 374 | ijt = jpiglo - ji + 2 |
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| 375 | pt2d(ji,ijpj+jl)= 0.5 * ( pt2d(ji,ijpj-1-jl) + psgn * pt2d(ijt,ijpj-1-jl) ) |
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| 376 | END DO |
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| 377 | END DO |
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| 378 | END SELECT |
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[2413] | 379 | ! |
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[1344] | 380 | CASE DEFAULT ! * closed : the code probably never go through |
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[2413] | 381 | ! |
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[1344] | 382 | SELECT CASE ( cd_type) |
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| 383 | CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points |
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| 384 | pt2d(:, 1:1-ipr2dj ) = 0.e0 |
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| 385 | pt2d(:,ijpj:ijpj+ipr2dj) = 0.e0 |
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| 386 | CASE ( 'F' ) ! F-point |
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| 387 | pt2d(:,ijpj:ijpj+ipr2dj) = 0.e0 |
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| 388 | CASE ( 'I' ) ! ice U-V point |
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| 389 | pt2d(:, 1:1-ipr2dj ) = 0.e0 |
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| 390 | pt2d(:,ijpj:ijpj+ipr2dj) = 0.e0 |
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| 391 | END SELECT |
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[2413] | 392 | ! |
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[1344] | 393 | END SELECT |
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[2413] | 394 | ! |
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[1344] | 395 | END SUBROUTINE lbc_nfd_2d |
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| 396 | |
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| 397 | !!====================================================================== |
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| 398 | END MODULE lbcnfd |
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