1 | MODULE bdyini |
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2 | !!====================================================================== |
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3 | !! *** MODULE bdyini *** |
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4 | !! Unstructured open boundaries : initialisation |
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5 | !!====================================================================== |
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6 | !! History : 1.0 ! 2005-01 (J. Chanut, A. Sellar) Original code |
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7 | !! - ! 2007-01 (D. Storkey) Update to use IOM module |
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8 | !! - ! 2007-01 (D. Storkey) Tidal forcing |
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9 | !! 3.0 ! 2008-04 (NEMO team) add in the reference version |
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10 | !! 3.3 ! 2010-09 (E.O'Dea) updates for Shelf configurations |
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11 | !! 3.3 ! 2010-09 (D.Storkey) add ice boundary conditions |
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12 | !! 3.4 ! 2011 (D. Storkey) rewrite in preparation for OBC-BDY merge |
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13 | !!---------------------------------------------------------------------- |
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14 | #if defined key_bdy |
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15 | !!---------------------------------------------------------------------- |
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16 | !! 'key_bdy' Unstructured Open Boundary Conditions |
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17 | !!---------------------------------------------------------------------- |
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18 | !! bdy_init : Initialization of unstructured open boundaries |
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19 | !!---------------------------------------------------------------------- |
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20 | USE timing ! Timing |
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21 | USE oce ! ocean dynamics and tracers variables |
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22 | USE dom_oce ! ocean space and time domain |
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23 | USE bdy_oce ! unstructured open boundary conditions |
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24 | USE in_out_manager ! I/O units |
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25 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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26 | USE lib_mpp ! for mpp_sum |
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27 | USE iom ! I/O |
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28 | |
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29 | IMPLICIT NONE |
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30 | PRIVATE |
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31 | |
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32 | PUBLIC bdy_init ! routine called in nemo_init |
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33 | |
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34 | !!---------------------------------------------------------------------- |
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35 | !! NEMO/OPA 4.0 , NEMO Consortium (2011) |
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36 | !! $Id$ |
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37 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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38 | !!---------------------------------------------------------------------- |
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39 | CONTAINS |
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40 | |
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41 | SUBROUTINE bdy_init |
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42 | !!---------------------------------------------------------------------- |
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43 | !! *** ROUTINE bdy_init *** |
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44 | !! |
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45 | !! ** Purpose : Initialization of the dynamics and tracer fields with |
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46 | !! unstructured open boundaries. |
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47 | !! |
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48 | !! ** Method : Read initialization arrays (mask, indices) to identify |
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49 | !! an unstructured open boundary |
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50 | !! |
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51 | !! ** Input : bdy_init.nc, input file for unstructured open boundaries |
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52 | !!---------------------------------------------------------------------- |
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53 | ! namelist variables |
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54 | !------------------- |
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55 | INTEGER, PARAMETER :: jp_nseg = 100 |
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56 | INTEGER :: nbdysege, nbdysegw, nbdysegn, nbdysegs |
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57 | INTEGER, DIMENSION(jp_nseg) :: jpieob, jpjedt, jpjeft |
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58 | INTEGER, DIMENSION(jp_nseg) :: jpiwob, jpjwdt, jpjwft |
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59 | INTEGER, DIMENSION(jp_nseg) :: jpjnob, jpindt, jpinft |
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60 | INTEGER, DIMENSION(jp_nseg) :: jpjsob, jpisdt, jpisft |
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61 | |
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62 | ! local variables |
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63 | !------------------- |
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64 | INTEGER :: ib_bdy, ii, ij, ik, igrd, ib, ir, iseg ! dummy loop indices |
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65 | INTEGER :: icount, icountr, ibr_max, ilen1, ibm1 ! local integers |
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66 | INTEGER :: iw, ie, is, in, inum, id_dummy ! - - |
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67 | INTEGER :: igrd_start, igrd_end, jpbdta ! - - |
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68 | INTEGER, POINTER :: nbi, nbj, nbr ! short cuts |
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69 | REAL , POINTER :: flagu, flagv ! - - |
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70 | REAL(wp) :: zefl, zwfl, znfl, zsfl ! local scalars |
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71 | INTEGER, DIMENSION (2) :: kdimsz |
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72 | INTEGER, DIMENSION(jpbgrd,jp_bdy) :: nblendta ! Length of index arrays |
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73 | INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbidta, nbjdta ! Index arrays: i and j indices of bdy dta |
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74 | INTEGER, ALLOCATABLE, DIMENSION(:,:,:) :: nbrdta ! Discrete distance from rim points |
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75 | REAL(wp), DIMENSION(jpidta,jpjdta) :: zmask ! global domain mask |
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76 | CHARACTER(LEN=80),DIMENSION(jpbgrd) :: clfile |
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77 | CHARACTER(LEN=1),DIMENSION(jpbgrd) :: cgrid |
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78 | !! |
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79 | NAMELIST/nambdy/ nb_bdy, ln_coords_file, cn_coords_file, & |
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80 | & ln_mask_file, cn_mask_file, nn_dyn2d, nn_dyn2d_dta, & |
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81 | & nn_dyn3d, nn_dyn3d_dta, nn_tra, nn_tra_dta, & |
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82 | #if defined key_lim2 |
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83 | & nn_ice_lim2, nn_ice_lim2_dta, & |
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84 | #endif |
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85 | & ln_vol, nn_volctl, nn_rimwidth |
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86 | !! |
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87 | NAMELIST/nambdy_index/ nbdysege, jpieob, jpjedt, jpjeft, & |
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88 | nbdysegw, jpiwob, jpjwdt, jpjwft, & |
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89 | nbdysegn, jpjnob, jpindt, jpinft, & |
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90 | nbdysegs, jpjsob, jpisdt, jpisft |
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91 | |
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92 | !!---------------------------------------------------------------------- |
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93 | |
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94 | IF( nn_timing == 1 ) CALL timing_start('bdy_init') |
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95 | |
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96 | IF( bdy_oce_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'bdy_init : unable to allocate oce arrays' ) |
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97 | |
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98 | IF(lwp) WRITE(numout,*) |
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99 | IF(lwp) WRITE(numout,*) 'bdy_init : initialization of open boundaries' |
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100 | IF(lwp) WRITE(numout,*) '~~~~~~~~' |
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101 | ! |
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102 | |
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103 | IF( jperio /= 0 ) CALL ctl_stop( 'Cyclic or symmetric,', & |
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104 | & ' and general open boundary condition are not compatible' ) |
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105 | |
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106 | cgrid= (/'t','u','v'/) |
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107 | |
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108 | ! ----------------------------------------- |
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109 | ! Initialise and read namelist parameters |
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110 | ! ----------------------------------------- |
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111 | |
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112 | nb_bdy = 0 |
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113 | ln_coords_file(:) = .false. |
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114 | cn_coords_file(:) = '' |
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115 | ln_mask_file = .false. |
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116 | cn_mask_file(:) = '' |
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117 | nn_dyn2d(:) = 0 |
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118 | nn_dyn2d_dta(:) = -1 ! uninitialised flag |
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119 | nn_dyn3d(:) = 0 |
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120 | nn_dyn3d_dta(:) = -1 ! uninitialised flag |
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121 | nn_tra(:) = 0 |
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122 | nn_tra_dta(:) = -1 ! uninitialised flag |
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123 | #if defined key_lim2 |
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124 | nn_ice_lim2(:) = 0 |
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125 | nn_ice_lim2_dta(:)= -1 ! uninitialised flag |
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126 | #endif |
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127 | ln_vol = .false. |
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128 | nn_volctl = -1 ! uninitialised flag |
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129 | nn_rimwidth(:) = -1 ! uninitialised flag |
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130 | |
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131 | REWIND( numnam ) |
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132 | READ ( numnam, nambdy ) |
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133 | |
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134 | ! ----------------------------------------- |
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135 | ! Check and write out namelist parameters |
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136 | ! ----------------------------------------- |
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137 | |
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138 | ! ! control prints |
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139 | IF(lwp) WRITE(numout,*) ' nambdy' |
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140 | |
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141 | IF( nb_bdy .eq. 0 ) THEN |
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142 | IF(lwp) WRITE(numout,*) 'nb_bdy = 0, NO OPEN BOUNDARIES APPLIED.' |
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143 | ELSE |
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144 | IF(lwp) WRITE(numout,*) 'Number of open boundary sets : ',nb_bdy |
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145 | ENDIF |
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146 | |
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147 | DO ib_bdy = 1,nb_bdy |
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148 | IF(lwp) WRITE(numout,*) ' ' |
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149 | IF(lwp) WRITE(numout,*) '------ Open boundary data set ',ib_bdy,'------' |
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150 | |
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151 | IF( ln_coords_file(ib_bdy) ) THEN |
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152 | IF(lwp) WRITE(numout,*) 'Boundary definition read from file '//TRIM(cn_coords_file(ib_bdy)) |
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153 | ELSE |
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154 | IF(lwp) WRITE(numout,*) 'Boundary defined in namelist.' |
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155 | ENDIF |
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156 | IF(lwp) WRITE(numout,*) |
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157 | |
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158 | IF(lwp) WRITE(numout,*) 'Boundary conditions for barotropic solution: ' |
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159 | SELECT CASE( nn_dyn2d(ib_bdy) ) |
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160 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' no open boundary condition' |
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161 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme' |
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162 | CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' Flather radiation condition' |
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163 | CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for nn_dyn2d' ) |
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164 | END SELECT |
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165 | IF( nn_dyn2d(ib_bdy) .gt. 0 ) THEN |
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166 | SELECT CASE( nn_dyn2d_dta(ib_bdy) ) ! |
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167 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data' |
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168 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file' |
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169 | CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' tidal harmonic forcing taken from file' |
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170 | CASE( 3 ) ; IF(lwp) WRITE(numout,*) ' boundary data AND tidal harmonic forcing taken from files' |
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171 | CASE DEFAULT ; CALL ctl_stop( 'nn_dyn2d_dta must be between 0 and 3' ) |
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172 | END SELECT |
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173 | ENDIF |
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174 | IF(lwp) WRITE(numout,*) |
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175 | |
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176 | IF(lwp) WRITE(numout,*) 'Boundary conditions for baroclinic velocities: ' |
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177 | SELECT CASE( nn_dyn3d(ib_bdy) ) |
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178 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' no open boundary condition' |
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179 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme' |
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180 | CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for nn_dyn3d' ) |
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181 | END SELECT |
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182 | IF( nn_dyn3d(ib_bdy) .gt. 0 ) THEN |
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183 | SELECT CASE( nn_dyn3d_dta(ib_bdy) ) ! |
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184 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data' |
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185 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file' |
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186 | CASE DEFAULT ; CALL ctl_stop( 'nn_dyn3d_dta must be 0 or 1' ) |
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187 | END SELECT |
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188 | ENDIF |
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189 | IF(lwp) WRITE(numout,*) |
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190 | |
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191 | IF(lwp) WRITE(numout,*) 'Boundary conditions for temperature and salinity: ' |
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192 | SELECT CASE( nn_tra(ib_bdy) ) |
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193 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' no open boundary condition' |
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194 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme' |
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195 | CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for nn_tra' ) |
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196 | END SELECT |
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197 | IF( nn_tra(ib_bdy) .gt. 0 ) THEN |
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198 | SELECT CASE( nn_tra_dta(ib_bdy) ) ! |
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199 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data' |
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200 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file' |
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201 | CASE DEFAULT ; CALL ctl_stop( 'nn_tra_dta must be 0 or 1' ) |
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202 | END SELECT |
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203 | ENDIF |
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204 | IF(lwp) WRITE(numout,*) |
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205 | |
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206 | #if defined key_lim2 |
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207 | IF(lwp) WRITE(numout,*) 'Boundary conditions for sea ice: ' |
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208 | SELECT CASE( nn_ice_lim2(ib_bdy) ) |
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209 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' no open boundary condition' |
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210 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' Flow Relaxation Scheme' |
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211 | CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for nn_tra' ) |
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212 | END SELECT |
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213 | IF( nn_ice_lim2(ib_bdy) .gt. 0 ) THEN |
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214 | SELECT CASE( nn_ice_lim2_dta(ib_bdy) ) ! |
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215 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' initial state used for bdy data' |
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216 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' boundary data taken from file' |
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217 | CASE DEFAULT ; CALL ctl_stop( 'nn_ice_lim2_dta must be 0 or 1' ) |
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218 | END SELECT |
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219 | ENDIF |
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220 | IF(lwp) WRITE(numout,*) |
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221 | #endif |
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222 | |
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223 | IF(lwp) WRITE(numout,*) 'Boundary rim width for the FRS scheme = ', nn_rimwidth(ib_bdy) |
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224 | IF(lwp) WRITE(numout,*) |
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225 | |
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226 | ENDDO |
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227 | |
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228 | IF( ln_vol ) THEN ! check volume conservation (nn_volctl value) |
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229 | IF(lwp) WRITE(numout,*) 'Volume correction applied at open boundaries' |
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230 | IF(lwp) WRITE(numout,*) |
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231 | SELECT CASE ( nn_volctl ) |
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232 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' The total volume will be constant' |
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233 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' The total volume will vary according to the surface E-P flux' |
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234 | CASE DEFAULT ; CALL ctl_stop( 'nn_volctl must be 0 or 1' ) |
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235 | END SELECT |
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236 | IF(lwp) WRITE(numout,*) |
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237 | ELSE |
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238 | IF(lwp) WRITE(numout,*) 'No volume correction applied at open boundaries' |
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239 | IF(lwp) WRITE(numout,*) |
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240 | ENDIF |
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241 | |
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242 | ! ------------------------------------------------- |
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243 | ! Initialise indices arrays for open boundaries |
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244 | ! ------------------------------------------------- |
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245 | |
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246 | ! Work out global dimensions of boundary data |
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247 | ! --------------------------------------------- |
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248 | REWIND( numnam ) |
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249 | DO ib_bdy = 1, nb_bdy |
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250 | |
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251 | jpbdta = 1 |
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252 | IF( .NOT. ln_coords_file(ib_bdy) ) THEN ! Work out size of global arrays from namelist parameters |
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253 | |
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254 | ! No REWIND here because may need to read more than one nambdy_index namelist. |
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255 | READ ( numnam, nambdy_index ) |
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256 | |
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257 | ! Automatic boundary definition: if nbdysegX = -1 |
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258 | ! set boundary to whole side of model domain. |
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259 | IF( nbdysege == -1 ) THEN |
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260 | nbdysege = 1 |
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261 | jpieob(1) = jpiglo - 1 |
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262 | jpjedt(1) = 2 |
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263 | jpjeft(1) = jpjglo - 1 |
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264 | ENDIF |
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265 | IF( nbdysegw == -1 ) THEN |
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266 | nbdysegw = 1 |
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267 | jpiwob(1) = 2 |
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268 | jpjwdt(1) = 2 |
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269 | jpjwft(1) = jpjglo - 1 |
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270 | ENDIF |
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271 | IF( nbdysegn == -1 ) THEN |
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272 | nbdysegn = 1 |
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273 | jpjnob(1) = jpjglo - 1 |
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274 | jpindt(1) = 2 |
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275 | jpinft(1) = jpiglo - 1 |
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276 | ENDIF |
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277 | IF( nbdysegs == -1 ) THEN |
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278 | nbdysegs = 1 |
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279 | jpjsob(1) = 2 |
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280 | jpisdt(1) = 2 |
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281 | jpisft(1) = jpiglo - 1 |
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282 | ENDIF |
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283 | |
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284 | nblendta(:,ib_bdy) = 0 |
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285 | DO iseg = 1, nbdysege |
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286 | igrd = 1 |
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287 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpjeft(iseg) - jpjedt(iseg) + 1 |
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288 | igrd = 2 |
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289 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpjeft(iseg) - jpjedt(iseg) + 1 |
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290 | igrd = 3 |
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291 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpjeft(iseg) - jpjedt(iseg) |
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292 | ENDDO |
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293 | DO iseg = 1, nbdysegw |
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294 | igrd = 1 |
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295 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpjwft(iseg) - jpjwdt(iseg) + 1 |
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296 | igrd = 2 |
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297 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpjwft(iseg) - jpjwdt(iseg) + 1 |
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298 | igrd = 3 |
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299 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpjwft(iseg) - jpjwdt(iseg) |
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300 | ENDDO |
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301 | DO iseg = 1, nbdysegn |
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302 | igrd = 1 |
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303 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpinft(iseg) - jpindt(iseg) + 1 |
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304 | igrd = 2 |
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305 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpinft(iseg) - jpindt(iseg) |
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306 | igrd = 3 |
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307 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpinft(iseg) - jpindt(iseg) + 1 |
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308 | ENDDO |
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309 | DO iseg = 1, nbdysegs |
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310 | igrd = 1 |
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311 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpisft(iseg) - jpisdt(iseg) + 1 |
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312 | igrd = 2 |
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313 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpisft(iseg) - jpisdt(iseg) |
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314 | igrd = 3 |
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315 | nblendta(igrd,ib_bdy) = nblendta(igrd,ib_bdy) + jpisft(iseg) - jpisdt(iseg) + 1 |
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316 | ENDDO |
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317 | |
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318 | nblendta(:,ib_bdy) = nblendta(:,ib_bdy) * nn_rimwidth(ib_bdy) |
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319 | jpbdta = MAXVAL(nblendta(:,ib_bdy)) |
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320 | |
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321 | |
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322 | ELSE ! Read size of arrays in boundary coordinates file. |
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323 | |
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324 | |
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325 | CALL iom_open( cn_coords_file(ib_bdy), inum ) |
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326 | jpbdta = 1 |
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327 | DO igrd = 1, jpbgrd |
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328 | id_dummy = iom_varid( inum, 'nbi'//cgrid(igrd), kdimsz=kdimsz ) |
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329 | nblendta(igrd,ib_bdy) = kdimsz(1) |
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330 | jpbdta = MAX(jpbdta, kdimsz(1)) |
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331 | ENDDO |
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332 | |
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333 | ENDIF |
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334 | |
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335 | ENDDO ! ib_bdy |
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336 | |
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337 | ! Allocate arrays |
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338 | !--------------- |
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339 | ALLOCATE( nbidta(jpbdta, jpbgrd, nb_bdy), nbjdta(jpbdta, jpbgrd, nb_bdy), & |
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340 | & nbrdta(jpbdta, jpbgrd, nb_bdy) ) |
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341 | |
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342 | ALLOCATE( dta_global(jpbdta, 1, jpk) ) |
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343 | |
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344 | ! Calculate global boundary index arrays or read in from file |
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345 | !------------------------------------------------------------ |
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346 | REWIND( numnam ) |
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347 | DO ib_bdy = 1, nb_bdy |
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348 | |
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349 | IF( .NOT. ln_coords_file(ib_bdy) ) THEN ! Calculate global index arrays from namelist parameters |
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350 | |
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351 | ! No REWIND here because may need to read more than one nambdy_index namelist. |
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352 | READ ( numnam, nambdy_index ) |
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353 | |
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354 | ! Automatic boundary definition: if nbdysegX = -1 |
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355 | ! set boundary to whole side of model domain. |
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356 | IF( nbdysege == -1 ) THEN |
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357 | nbdysege = 1 |
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358 | jpieob(1) = jpiglo - 1 |
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359 | jpjedt(1) = 2 |
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360 | jpjeft(1) = jpjglo - 1 |
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361 | ENDIF |
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362 | IF( nbdysegw == -1 ) THEN |
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363 | nbdysegw = 1 |
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364 | jpiwob(1) = 2 |
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365 | jpjwdt(1) = 2 |
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366 | jpjwft(1) = jpjglo - 1 |
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367 | ENDIF |
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368 | IF( nbdysegn == -1 ) THEN |
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369 | nbdysegn = 1 |
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370 | jpjnob(1) = jpjglo - 1 |
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371 | jpindt(1) = 2 |
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372 | jpinft(1) = jpiglo - 1 |
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373 | ENDIF |
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374 | IF( nbdysegs == -1 ) THEN |
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375 | nbdysegs = 1 |
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376 | jpjsob(1) = 2 |
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377 | jpisdt(1) = 2 |
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378 | jpisft(1) = jpiglo - 1 |
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379 | ENDIF |
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380 | |
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381 | ! ------------ T points ------------- |
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382 | igrd = 1 |
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383 | icount = 0 |
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384 | DO ir = 1, nn_rimwidth(ib_bdy) |
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385 | ! east |
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386 | DO iseg = 1, nbdysege |
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387 | DO ij = jpjedt(iseg), jpjeft(iseg) |
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388 | icount = icount + 1 |
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389 | nbidta(icount, igrd, ib_bdy) = jpieob(iseg) - ir + 1 |
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390 | nbjdta(icount, igrd, ib_bdy) = ij |
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391 | nbrdta(icount, igrd, ib_bdy) = ir |
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392 | ENDDO |
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393 | ENDDO |
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394 | ! west |
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395 | DO iseg = 1, nbdysegw |
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396 | DO ij = jpjwdt(iseg), jpjwft(iseg) |
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397 | icount = icount + 1 |
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398 | nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1 |
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399 | nbjdta(icount, igrd, ib_bdy) = ij |
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400 | nbrdta(icount, igrd, ib_bdy) = ir |
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401 | ENDDO |
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402 | ENDDO |
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403 | ! north |
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404 | DO iseg = 1, nbdysegn |
---|
405 | DO ii = jpindt(iseg), jpinft(iseg) |
---|
406 | icount = icount + 1 |
---|
407 | nbidta(icount, igrd, ib_bdy) = ii |
---|
408 | nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) - ir + 1 |
---|
409 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
410 | ENDDO |
---|
411 | ENDDO |
---|
412 | ! south |
---|
413 | DO iseg = 1, nbdysegs |
---|
414 | DO ii = jpisdt(iseg), jpisft(iseg) |
---|
415 | icount = icount + 1 |
---|
416 | nbidta(icount, igrd, ib_bdy) = ii |
---|
417 | nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1 |
---|
418 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
419 | ENDDO |
---|
420 | ENDDO |
---|
421 | ENDDO |
---|
422 | |
---|
423 | ! ------------ U points ------------- |
---|
424 | igrd = 2 |
---|
425 | icount = 0 |
---|
426 | DO ir = 1, nn_rimwidth(ib_bdy) |
---|
427 | ! east |
---|
428 | DO iseg = 1, nbdysege |
---|
429 | DO ij = jpjedt(iseg), jpjeft(iseg) |
---|
430 | icount = icount + 1 |
---|
431 | nbidta(icount, igrd, ib_bdy) = jpieob(iseg) - ir |
---|
432 | nbjdta(icount, igrd, ib_bdy) = ij |
---|
433 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
434 | ENDDO |
---|
435 | ENDDO |
---|
436 | ! west |
---|
437 | DO iseg = 1, nbdysegw |
---|
438 | DO ij = jpjwdt(iseg), jpjwft(iseg) |
---|
439 | icount = icount + 1 |
---|
440 | nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1 |
---|
441 | nbjdta(icount, igrd, ib_bdy) = ij |
---|
442 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
443 | ENDDO |
---|
444 | ENDDO |
---|
445 | ! north |
---|
446 | DO iseg = 1, nbdysegn |
---|
447 | DO ii = jpindt(iseg), jpinft(iseg) - 1 |
---|
448 | icount = icount + 1 |
---|
449 | nbidta(icount, igrd, ib_bdy) = ii |
---|
450 | nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) - ir + 1 |
---|
451 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
452 | ENDDO |
---|
453 | ENDDO |
---|
454 | ! south |
---|
455 | DO iseg = 1, nbdysegs |
---|
456 | DO ii = jpisdt(iseg), jpisft(iseg) - 1 |
---|
457 | icount = icount + 1 |
---|
458 | nbidta(icount, igrd, ib_bdy) = ii |
---|
459 | nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1 |
---|
460 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
461 | ENDDO |
---|
462 | ENDDO |
---|
463 | ENDDO |
---|
464 | |
---|
465 | ! ------------ V points ------------- |
---|
466 | igrd = 3 |
---|
467 | icount = 0 |
---|
468 | DO ir = 1, nn_rimwidth(ib_bdy) |
---|
469 | ! east |
---|
470 | DO iseg = 1, nbdysege |
---|
471 | DO ij = jpjedt(iseg), jpjeft(iseg) - 1 |
---|
472 | icount = icount + 1 |
---|
473 | nbidta(icount, igrd, ib_bdy) = jpieob(iseg) - ir + 1 |
---|
474 | nbjdta(icount, igrd, ib_bdy) = ij |
---|
475 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
476 | ENDDO |
---|
477 | ENDDO |
---|
478 | ! west |
---|
479 | DO iseg = 1, nbdysegw |
---|
480 | DO ij = jpjwdt(iseg), jpjwft(iseg) - 1 |
---|
481 | icount = icount + 1 |
---|
482 | nbidta(icount, igrd, ib_bdy) = jpiwob(iseg) + ir - 1 |
---|
483 | nbjdta(icount, igrd, ib_bdy) = ij |
---|
484 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
485 | ENDDO |
---|
486 | ENDDO |
---|
487 | ! north |
---|
488 | DO iseg = 1, nbdysegn |
---|
489 | DO ii = jpindt(iseg), jpinft(iseg) |
---|
490 | icount = icount + 1 |
---|
491 | nbidta(icount, igrd, ib_bdy) = ii |
---|
492 | nbjdta(icount, igrd, ib_bdy) = jpjnob(iseg) - ir |
---|
493 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
494 | ENDDO |
---|
495 | ENDDO |
---|
496 | ! south |
---|
497 | DO iseg = 1, nbdysegs |
---|
498 | DO ii = jpisdt(iseg), jpisft(iseg) |
---|
499 | icount = icount + 1 |
---|
500 | nbidta(icount, igrd, ib_bdy) = ii |
---|
501 | nbjdta(icount, igrd, ib_bdy) = jpjsob(iseg) + ir - 1 |
---|
502 | nbrdta(icount, igrd, ib_bdy) = ir |
---|
503 | ENDDO |
---|
504 | ENDDO |
---|
505 | ENDDO |
---|
506 | |
---|
507 | ELSE ! Read global index arrays from boundary coordinates file. |
---|
508 | |
---|
509 | DO igrd = 1, jpbgrd |
---|
510 | CALL iom_get( inum, jpdom_unknown, 'nbi'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) ) |
---|
511 | DO ii = 1,nblendta(igrd,ib_bdy) |
---|
512 | nbidta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) ) |
---|
513 | END DO |
---|
514 | CALL iom_get( inum, jpdom_unknown, 'nbj'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) ) |
---|
515 | DO ii = 1,nblendta(igrd,ib_bdy) |
---|
516 | nbjdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) ) |
---|
517 | END DO |
---|
518 | CALL iom_get( inum, jpdom_unknown, 'nbr'//cgrid(igrd), dta_global(1:nblendta(igrd,ib_bdy),:,1) ) |
---|
519 | DO ii = 1,nblendta(igrd,ib_bdy) |
---|
520 | nbrdta(ii,igrd,ib_bdy) = INT( dta_global(ii,1,1) ) |
---|
521 | END DO |
---|
522 | |
---|
523 | ibr_max = MAXVAL( nbrdta(:,igrd,ib_bdy) ) |
---|
524 | IF(lwp) WRITE(numout,*) |
---|
525 | IF(lwp) WRITE(numout,*) ' Maximum rimwidth in file is ', ibr_max |
---|
526 | IF(lwp) WRITE(numout,*) ' nn_rimwidth from namelist is ', nn_rimwidth(ib_bdy) |
---|
527 | IF (ibr_max < nn_rimwidth(ib_bdy)) & |
---|
528 | CALL ctl_stop( 'nn_rimwidth is larger than maximum rimwidth in file',cn_coords_file(ib_bdy) ) |
---|
529 | |
---|
530 | END DO |
---|
531 | CALL iom_close( inum ) |
---|
532 | |
---|
533 | ENDIF |
---|
534 | |
---|
535 | ENDDO |
---|
536 | |
---|
537 | ! Work out dimensions of boundary data on each processor |
---|
538 | ! ------------------------------------------------------ |
---|
539 | |
---|
540 | iw = mig(1) + 1 ! if monotasking and no zoom, iw=2 |
---|
541 | ie = mig(1) + nlci-1 - 1 ! if monotasking and no zoom, ie=jpim1 |
---|
542 | is = mjg(1) + 1 ! if monotasking and no zoom, is=2 |
---|
543 | in = mjg(1) + nlcj-1 - 1 ! if monotasking and no zoom, in=jpjm1 |
---|
544 | |
---|
545 | DO ib_bdy = 1, nb_bdy |
---|
546 | DO igrd = 1, jpbgrd |
---|
547 | icount = 0 |
---|
548 | icountr = 0 |
---|
549 | idx_bdy(ib_bdy)%nblen(igrd) = 0 |
---|
550 | idx_bdy(ib_bdy)%nblenrim(igrd) = 0 |
---|
551 | DO ib = 1, nblendta(igrd,ib_bdy) |
---|
552 | ! check that data is in correct order in file |
---|
553 | ibm1 = MAX(1,ib-1) |
---|
554 | IF(lwp) THEN ! Since all procs read global data only need to do this check on one proc... |
---|
555 | IF( nbrdta(ib,igrd,ib_bdy) < nbrdta(ibm1,igrd,ib_bdy) ) THEN |
---|
556 | CALL ctl_stop('bdy_init : ERROR : boundary data in file must be defined in order of distance from edge nbr.', & |
---|
557 | 'A utility for re-ordering boundary coordinates and data files exists in the TOOLS/OBC directory') |
---|
558 | ENDIF |
---|
559 | ENDIF |
---|
560 | ! check if point is in local domain |
---|
561 | IF( nbidta(ib,igrd,ib_bdy) >= iw .AND. nbidta(ib,igrd,ib_bdy) <= ie .AND. & |
---|
562 | & nbjdta(ib,igrd,ib_bdy) >= is .AND. nbjdta(ib,igrd,ib_bdy) <= in ) THEN |
---|
563 | ! |
---|
564 | icount = icount + 1 |
---|
565 | ! |
---|
566 | IF( nbrdta(ib,igrd,ib_bdy) == 1 ) icountr = icountr+1 |
---|
567 | ENDIF |
---|
568 | ENDDO |
---|
569 | idx_bdy(ib_bdy)%nblenrim(igrd) = icountr !: length of rim boundary data on each proc |
---|
570 | idx_bdy(ib_bdy)%nblen (igrd) = icount !: length of boundary data on each proc |
---|
571 | ENDDO ! igrd |
---|
572 | |
---|
573 | ! Allocate index arrays for this boundary set |
---|
574 | !-------------------------------------------- |
---|
575 | ilen1 = MAXVAL(idx_bdy(ib_bdy)%nblen(:)) |
---|
576 | ALLOCATE( idx_bdy(ib_bdy)%nbi(ilen1,jpbgrd) ) |
---|
577 | ALLOCATE( idx_bdy(ib_bdy)%nbj(ilen1,jpbgrd) ) |
---|
578 | ALLOCATE( idx_bdy(ib_bdy)%nbr(ilen1,jpbgrd) ) |
---|
579 | ALLOCATE( idx_bdy(ib_bdy)%nbmap(ilen1,jpbgrd) ) |
---|
580 | ALLOCATE( idx_bdy(ib_bdy)%nbw(ilen1,jpbgrd) ) |
---|
581 | ALLOCATE( idx_bdy(ib_bdy)%flagu(ilen1) ) |
---|
582 | ALLOCATE( idx_bdy(ib_bdy)%flagv(ilen1) ) |
---|
583 | |
---|
584 | ! Dispatch mapping indices and discrete distances on each processor |
---|
585 | ! ----------------------------------------------------------------- |
---|
586 | |
---|
587 | DO igrd = 1, jpbgrd |
---|
588 | icount = 0 |
---|
589 | ! Loop on rimwidth to ensure outermost points come first in the local arrays. |
---|
590 | DO ir=1, nn_rimwidth(ib_bdy) |
---|
591 | DO ib = 1, nblendta(igrd,ib_bdy) |
---|
592 | ! check if point is in local domain and equals ir |
---|
593 | IF( nbidta(ib,igrd,ib_bdy) >= iw .AND. nbidta(ib,igrd,ib_bdy) <= ie .AND. & |
---|
594 | & nbjdta(ib,igrd,ib_bdy) >= is .AND. nbjdta(ib,igrd,ib_bdy) <= in .AND. & |
---|
595 | & nbrdta(ib,igrd,ib_bdy) == ir ) THEN |
---|
596 | ! |
---|
597 | icount = icount + 1 |
---|
598 | idx_bdy(ib_bdy)%nbi(icount,igrd) = nbidta(ib,igrd,ib_bdy)- mig(1)+1 |
---|
599 | idx_bdy(ib_bdy)%nbj(icount,igrd) = nbjdta(ib,igrd,ib_bdy)- mjg(1)+1 |
---|
600 | idx_bdy(ib_bdy)%nbr(icount,igrd) = nbrdta(ib,igrd,ib_bdy) |
---|
601 | idx_bdy(ib_bdy)%nbmap(icount,igrd) = ib |
---|
602 | ENDIF |
---|
603 | ENDDO |
---|
604 | ENDDO |
---|
605 | ENDDO |
---|
606 | |
---|
607 | ! Compute rim weights for FRS scheme |
---|
608 | ! ---------------------------------- |
---|
609 | DO igrd = 1, jpbgrd |
---|
610 | DO ib = 1, idx_bdy(ib_bdy)%nblen(igrd) |
---|
611 | nbr => idx_bdy(ib_bdy)%nbr(ib,igrd) |
---|
612 | idx_bdy(ib_bdy)%nbw(ib,igrd) = 1.- TANH( FLOAT( nbr - 1 ) *0.5 ) ! tanh formulation |
---|
613 | ! idx_bdy(ib_bdy)%nbw(ib,igrd) = (FLOAT(nn_rimwidth+1-nbr)/FLOAT(nn_rimwidth))**2 ! quadratic |
---|
614 | ! idx_bdy(ib_bdy)%nbw(ib,igrd) = FLOAT(nn_rimwidth+1-nbr)/FLOAT(nn_rimwidth) ! linear |
---|
615 | END DO |
---|
616 | END DO |
---|
617 | |
---|
618 | ENDDO |
---|
619 | |
---|
620 | ! ------------------------------------------------------ |
---|
621 | ! Initialise masks and find normal/tangential directions |
---|
622 | ! ------------------------------------------------------ |
---|
623 | |
---|
624 | ! Read global 2D mask at T-points: bdytmask |
---|
625 | ! ----------------------------------------- |
---|
626 | ! bdytmask = 1 on the computational domain AND on open boundaries |
---|
627 | ! = 0 elsewhere |
---|
628 | |
---|
629 | IF( cp_cfg == "eel" .AND. jp_cfg == 5 ) THEN ! EEL configuration at 5km resolution |
---|
630 | zmask( : ,:) = 0.e0 |
---|
631 | zmask(jpizoom+1:jpizoom+jpiglo-2,:) = 1.e0 |
---|
632 | ELSE IF( ln_mask_file ) THEN |
---|
633 | CALL iom_open( cn_mask_file, inum ) |
---|
634 | CALL iom_get ( inum, jpdom_data, 'bdy_msk', zmask(:,:) ) |
---|
635 | CALL iom_close( inum ) |
---|
636 | ELSE |
---|
637 | zmask(:,:) = 1.e0 |
---|
638 | ENDIF |
---|
639 | |
---|
640 | DO ij = 1, nlcj ! Save mask over local domain |
---|
641 | DO ii = 1, nlci |
---|
642 | bdytmask(ii,ij) = zmask( mig(ii), mjg(ij) ) |
---|
643 | END DO |
---|
644 | END DO |
---|
645 | |
---|
646 | ! Derive mask on U and V grid from mask on T grid |
---|
647 | bdyumask(:,:) = 0.e0 |
---|
648 | bdyvmask(:,:) = 0.e0 |
---|
649 | DO ij=1, jpjm1 |
---|
650 | DO ii=1, jpim1 |
---|
651 | bdyumask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii+1, ij ) |
---|
652 | bdyvmask(ii,ij)=bdytmask(ii,ij)*bdytmask(ii ,ij+1) |
---|
653 | END DO |
---|
654 | END DO |
---|
655 | CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) ! Lateral boundary cond. |
---|
656 | |
---|
657 | |
---|
658 | ! Mask corrections |
---|
659 | ! ---------------- |
---|
660 | DO ik = 1, jpkm1 |
---|
661 | DO ij = 1, jpj |
---|
662 | DO ii = 1, jpi |
---|
663 | tmask(ii,ij,ik) = tmask(ii,ij,ik) * bdytmask(ii,ij) |
---|
664 | umask(ii,ij,ik) = umask(ii,ij,ik) * bdyumask(ii,ij) |
---|
665 | vmask(ii,ij,ik) = vmask(ii,ij,ik) * bdyvmask(ii,ij) |
---|
666 | bmask(ii,ij) = bmask(ii,ij) * bdytmask(ii,ij) |
---|
667 | END DO |
---|
668 | END DO |
---|
669 | END DO |
---|
670 | |
---|
671 | DO ik = 1, jpkm1 |
---|
672 | DO ij = 2, jpjm1 |
---|
673 | DO ii = 2, jpim1 |
---|
674 | fmask(ii,ij,ik) = fmask(ii,ij,ik) * bdytmask(ii,ij ) * bdytmask(ii+1,ij ) & |
---|
675 | & * bdytmask(ii,ij+1) * bdytmask(ii+1,ij+1) |
---|
676 | END DO |
---|
677 | END DO |
---|
678 | END DO |
---|
679 | |
---|
680 | tmask_i (:,:) = tmask(:,:,1) * tmask_i(:,:) |
---|
681 | bdytmask(:,:) = tmask(:,:,1) |
---|
682 | |
---|
683 | ! bdy masks and bmask are now set to zero on boundary points: |
---|
684 | igrd = 1 ! In the free surface case, bmask is at T-points |
---|
685 | DO ib_bdy = 1, nb_bdy |
---|
686 | DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd) |
---|
687 | bmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0 |
---|
688 | ENDDO |
---|
689 | ENDDO |
---|
690 | ! |
---|
691 | igrd = 1 |
---|
692 | DO ib_bdy = 1, nb_bdy |
---|
693 | DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd) |
---|
694 | bdytmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0 |
---|
695 | ENDDO |
---|
696 | ENDDO |
---|
697 | ! |
---|
698 | igrd = 2 |
---|
699 | DO ib_bdy = 1, nb_bdy |
---|
700 | DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd) |
---|
701 | bdyumask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0 |
---|
702 | ENDDO |
---|
703 | ENDDO |
---|
704 | ! |
---|
705 | igrd = 3 |
---|
706 | DO ib_bdy = 1, nb_bdy |
---|
707 | DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd) |
---|
708 | bdyvmask(idx_bdy(ib_bdy)%nbi(ib,igrd), idx_bdy(ib_bdy)%nbj(ib,igrd)) = 0.e0 |
---|
709 | ENDDO |
---|
710 | ENDDO |
---|
711 | |
---|
712 | ! Lateral boundary conditions |
---|
713 | CALL lbc_lnk( fmask , 'F', 1. ) ; CALL lbc_lnk( bdytmask(:,:), 'T', 1. ) |
---|
714 | CALL lbc_lnk( bdyumask(:,:), 'U', 1. ) ; CALL lbc_lnk( bdyvmask(:,:), 'V', 1. ) |
---|
715 | |
---|
716 | DO ib_bdy = 1, nb_bdy ! Indices and directions of rim velocity components |
---|
717 | |
---|
718 | idx_bdy(ib_bdy)%flagu(:) = 0.e0 |
---|
719 | idx_bdy(ib_bdy)%flagv(:) = 0.e0 |
---|
720 | icount = 0 |
---|
721 | |
---|
722 | !flagu = -1 : u component is normal to the dynamical boundary but its direction is outward |
---|
723 | !flagu = 0 : u is tangential |
---|
724 | !flagu = 1 : u is normal to the boundary and is direction is inward |
---|
725 | |
---|
726 | igrd = 2 ! u-component |
---|
727 | DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd) |
---|
728 | nbi => idx_bdy(ib_bdy)%nbi(ib,igrd) |
---|
729 | nbj => idx_bdy(ib_bdy)%nbj(ib,igrd) |
---|
730 | zefl = bdytmask(nbi ,nbj) |
---|
731 | zwfl = bdytmask(nbi+1,nbj) |
---|
732 | IF( zefl + zwfl == 2 ) THEN |
---|
733 | icount = icount + 1 |
---|
734 | ELSE |
---|
735 | idx_bdy(ib_bdy)%flagu(ib)=-zefl+zwfl |
---|
736 | ENDIF |
---|
737 | END DO |
---|
738 | |
---|
739 | !flagv = -1 : u component is normal to the dynamical boundary but its direction is outward |
---|
740 | !flagv = 0 : u is tangential |
---|
741 | !flagv = 1 : u is normal to the boundary and is direction is inward |
---|
742 | |
---|
743 | igrd = 3 ! v-component |
---|
744 | DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd) |
---|
745 | nbi => idx_bdy(ib_bdy)%nbi(ib,igrd) |
---|
746 | nbj => idx_bdy(ib_bdy)%nbj(ib,igrd) |
---|
747 | znfl = bdytmask(nbi,nbj ) |
---|
748 | zsfl = bdytmask(nbi,nbj+1) |
---|
749 | IF( znfl + zsfl == 2 ) THEN |
---|
750 | icount = icount + 1 |
---|
751 | ELSE |
---|
752 | idx_bdy(ib_bdy)%flagv(ib) = -znfl + zsfl |
---|
753 | END IF |
---|
754 | END DO |
---|
755 | |
---|
756 | IF( icount /= 0 ) THEN |
---|
757 | IF(lwp) WRITE(numout,*) |
---|
758 | IF(lwp) WRITE(numout,*) ' E R R O R : Some data velocity points,', & |
---|
759 | ' are not boundary points. Check nbi, nbj, indices for boundary set ',ib_bdy |
---|
760 | IF(lwp) WRITE(numout,*) ' ========== ' |
---|
761 | IF(lwp) WRITE(numout,*) |
---|
762 | nstop = nstop + 1 |
---|
763 | ENDIF |
---|
764 | |
---|
765 | ENDDO |
---|
766 | |
---|
767 | ! Compute total lateral surface for volume correction: |
---|
768 | ! ---------------------------------------------------- |
---|
769 | bdysurftot = 0.e0 |
---|
770 | IF( ln_vol ) THEN |
---|
771 | igrd = 2 ! Lateral surface at U-points |
---|
772 | DO ib_bdy = 1, nb_bdy |
---|
773 | DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd) |
---|
774 | nbi => idx_bdy(ib_bdy)%nbi(ib,igrd) |
---|
775 | nbj => idx_bdy(ib_bdy)%nbj(ib,igrd) |
---|
776 | flagu => idx_bdy(ib_bdy)%flagu(ib) |
---|
777 | bdysurftot = bdysurftot + hu (nbi , nbj) & |
---|
778 | & * e2u (nbi , nbj) * ABS( flagu ) & |
---|
779 | & * tmask_i(nbi , nbj) & |
---|
780 | & * tmask_i(nbi+1, nbj) |
---|
781 | ENDDO |
---|
782 | ENDDO |
---|
783 | |
---|
784 | igrd=3 ! Add lateral surface at V-points |
---|
785 | DO ib_bdy = 1, nb_bdy |
---|
786 | DO ib = 1, idx_bdy(ib_bdy)%nblenrim(igrd) |
---|
787 | nbi => idx_bdy(ib_bdy)%nbi(ib,igrd) |
---|
788 | nbj => idx_bdy(ib_bdy)%nbj(ib,igrd) |
---|
789 | flagv => idx_bdy(ib_bdy)%flagv(ib) |
---|
790 | bdysurftot = bdysurftot + hv (nbi, nbj ) & |
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791 | & * e1v (nbi, nbj ) * ABS( flagv ) & |
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792 | & * tmask_i(nbi, nbj ) & |
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793 | & * tmask_i(nbi, nbj+1) |
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794 | ENDDO |
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795 | ENDDO |
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796 | ! |
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797 | IF( lk_mpp ) CALL mpp_sum( bdysurftot ) ! sum over the global domain |
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798 | END IF |
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799 | ! |
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800 | ! Tidy up |
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801 | !-------- |
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802 | DEALLOCATE(nbidta, nbjdta, nbrdta) |
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803 | |
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804 | IF( nn_timing == 1 ) CALL timing_stop('bdy_init') |
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805 | |
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806 | END SUBROUTINE bdy_init |
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807 | |
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808 | #else |
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809 | !!--------------------------------------------------------------------------------- |
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810 | !! Dummy module NO open boundaries |
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811 | !!--------------------------------------------------------------------------------- |
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812 | CONTAINS |
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813 | SUBROUTINE bdy_init ! Dummy routine |
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814 | END SUBROUTINE bdy_init |
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815 | #endif |
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816 | |
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817 | !!================================================================================= |
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818 | END MODULE bdyini |
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