1 | MODULE crsini |
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2 | !!====================================================================== |
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3 | !! *** MODULE crsini *** |
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4 | !! Manage the grid coarsening module initialization |
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5 | !!====================================================================== |
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6 | !! History 2012-05 (J. Simeon, G. Madec, C. Ethe, C. Calone) Original code |
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7 | !!---------------------------------------------------------------------- |
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8 | |
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9 | USE timing ! Timing |
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10 | USE par_oce ! For parameter jpi,jpj,jphgr_msh |
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11 | USE dom_oce ! For parameters in par_oce (jperio, lk_vvl) |
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12 | USE crs ! Coarse grid domain |
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13 | USE phycst, ONLY: omega, rad ! physical constants |
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14 | USE wrk_nemo |
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15 | USE in_out_manager |
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16 | USE par_kind, ONLY: wp |
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17 | USE iom |
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18 | USE crsdom |
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19 | USE crsdomwri |
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20 | USE crslbclnk |
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21 | USE lib_mpp |
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22 | USE ldftra_crs |
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23 | USE ieee_arithmetic |
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24 | |
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25 | IMPLICIT NONE |
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26 | PRIVATE |
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27 | |
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28 | PUBLIC crs_init |
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29 | |
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30 | !! * Substitutions |
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31 | # include "domzgr_substitute.h90" |
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32 | |
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33 | CONTAINS |
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34 | |
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35 | SUBROUTINE crs_init |
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36 | !!------------------------------------------------------------------- |
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37 | !! *** SUBROUTINE crs_init |
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38 | !! ** Purpose : Initialization of the grid coarsening module |
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39 | !! 1. Read namelist |
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40 | !! X2. MOVE TO crs_dom.F90 Set the domain definitions for coarse grid |
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41 | !! a. Define the coarse grid starting/ending indices on parent grid |
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42 | !! Here is where the T-pivot or F-pivot grids are discerned |
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43 | !! b. TODO. Include option for north-centric or equator-centric binning. |
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44 | !! (centered only for odd reduction factors; even reduction bins bias equator to the south) |
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45 | !! 3. Mask and mesh creation. => calls to crsfun |
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46 | !! a. Use crsfun_mask to generate tmask,umask, vmask, fmask. |
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47 | !! b. Use crsfun_coordinates to get coordinates |
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48 | !! c. Use crsfun_UV to get horizontal scale factors |
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49 | !! d. Use crsfun_TW to get initial vertical scale factors |
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50 | !! 4. Volumes and weights jes.... TODO. Updates for vvl? Where to do this? crsstp.F90? |
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51 | !! a. Calculate initial coarse grid box volumes: pvol_T, pvol_W |
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52 | !! b. Calculate initial coarse grid surface-averaging weights |
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53 | !! c. Calculate initial coarse grid volume-averaging weights |
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54 | !! |
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55 | !! X5. MOVE TO crs_dom_wri.F90 Using iom_rstput output the initial meshmask. |
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56 | !! ?. Another set of "masks" to generate |
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57 | !! are the u- and v- surface areas for U- and V- area-weighted means. |
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58 | !! Need to put this somewhere in section 3? |
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59 | !! jes. What do to about the vvl? GM. could separate the weighting (denominator), so |
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60 | !! output C*dA or C*dV as summation not mran, then do mean (division) at moment of output. |
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61 | !! As is, crsfun takes into account vvl. |
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62 | !! Talked about pre-setting the surface array to avoid IF/ENDIFS and division. |
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63 | !! But have then to make that preset array here and elsewhere. |
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64 | !! that is called every timestep... |
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65 | !! |
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66 | !! - Read in pertinent data ? |
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67 | !!------------------------------------------------------------------- |
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68 | !! Local variables |
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69 | INTEGER :: ji,jj,jk ! dummy indices |
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70 | INTEGER :: ierr ! allocation error status |
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71 | INTEGER :: ios ! Local integer output status for namelist read |
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72 | INTEGER :: iif, iil, ijf, ijl ! indices for tmask_i_crs construction |
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73 | REAL(wp) :: zmin,zmax |
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74 | REAL(wp), DIMENSION(:,:,:), POINTER :: zfse3t, zfse3u, zfse3v, zfse3w |
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75 | |
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76 | NAMELIST/namcrs/ nn_factx, nn_facty, nn_msh_crs, nn_crs_kz, ln_crs_wn, ln_crs_top |
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77 | !!---------------------------------------------------------------------- |
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78 | ! |
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79 | IF( nn_timing == 1 ) CALL timing_start('crs_init') |
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80 | ! |
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81 | IF(lwp) THEN |
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82 | WRITE(numout,*) |
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83 | WRITE(numout,*) 'crs_init : Initializing the grid coarsening module ' |
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84 | ENDIF |
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85 | |
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86 | !--------------------------------------------------------- |
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87 | ! 1. Read Namelist file |
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88 | !--------------------------------------------------------- |
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89 | ! |
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90 | |
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91 | REWIND( numnam_ref ) ! Namelist namrun in reference namelist : Parameters of the run |
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92 | READ ( numnam_ref, namcrs, IOSTAT = ios, ERR = 901) |
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93 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcrs in reference namelist', lwp ) |
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94 | |
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95 | REWIND( numnam_cfg ) ! Namelist namrun in configuration namelist : Parameters of the run |
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96 | READ ( numnam_cfg, namcrs, IOSTAT = ios, ERR = 902 ) |
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97 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namcrs in configuration namelist', lwp ) |
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98 | IF(lwm) WRITE ( numond, namcrs ) |
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99 | |
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100 | IF( .NOT. lk_crs )ln_crs_top = .FALSE. |
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101 | |
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102 | IF(lwp) THEN |
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103 | WRITE(numout,*) |
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104 | WRITE(numout,*) 'crs_init: Namelist namcrs ' |
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105 | WRITE(numout,*) ' coarsening factor in i-direction nn_factx = ', nn_factx |
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106 | WRITE(numout,*) ' coarsening factor in j-direction nn_facty = ', nn_facty |
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107 | WRITE(numout,*) ' create (=1) a mesh file or not (=0) nn_msh_crs = ', nn_msh_crs |
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108 | WRITE(numout,*) ' type of Kz coarsening (0,1,2) nn_crs_kz = ', nn_crs_kz |
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109 | |
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110 | IF( ln_crs_wn )THEN |
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111 | WRITE(numout,*) ' vertical velocities are coarsened ' |
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112 | ELSE |
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113 | WRITE(numout,*) ' computed using hdivn ' |
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114 | ENDIF |
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115 | |
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116 | IF( .NOT. lk_crs )ln_crs_top = .FALSE. |
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117 | |
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118 | IF( ln_crs_top )THEN ; WRITE(numout,*) ' coarsning of physics activated for outputs and BGC model' |
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119 | ELSE ; WRITE(numout,*) ' coarsning of physics activated only for outputs' |
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120 | ENDIF |
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121 | |
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122 | SELECT CASE ( nn_crs_kz ) |
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123 | CASE ( 0 ) ; WRITE(numout,*) ' coarsene KZ with MEAN(KZ)' |
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124 | CASE ( 1 ) ; WRITE(numout,*) ' coarsene KZ with MIN(KZ)' |
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125 | CASE ( 2 ) ; WRITE(numout,*) ' coarsene KZ with MAX(KZ)' |
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126 | CASE ( 3 ) ; WRITE(numout,*) ' coarsene KZ with MEANLOG(KZ)' |
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127 | CASE ( 4 ) ; WRITE(numout,*) ' coarsene KZ with MEDIANE(KZ)' |
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128 | END SELECT |
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129 | |
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130 | ENDIF |
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131 | |
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132 | rfactx_r = 1. / nn_factx |
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133 | rfacty_r = 1. / nn_facty |
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134 | |
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135 | |
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136 | !--------------------------------------------------------- |
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137 | ! 2. Define Global Dimensions of the coarsened grid |
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138 | !--------------------------------------------------------- |
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139 | CALL crs_dom_def |
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140 | |
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141 | !--------------------------------------------------------- |
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142 | ! 3. Mask and Mesh |
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143 | !--------------------------------------------------------- |
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144 | |
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145 | ! 3.a. Get the masks |
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146 | |
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147 | CALL crs_dom_msk |
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148 | |
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149 | ! 3.b. Get the coordinates |
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150 | ! Odd-numbered reduction factor, center coordinate on T-cell |
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151 | ! Even-numbered reduction factor, center coordinate on U-,V- faces or f-corner. |
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152 | ! |
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153 | CALL crs_dom_coordinates( gphit, glamt, 'T', gphit_crs, glamt_crs ) |
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154 | CALL crs_dom_coordinates( gphiu, glamu, 'U', gphiu_crs, glamu_crs ) |
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155 | CALL crs_dom_coordinates( gphiv, glamv, 'V', gphiv_crs, glamv_crs ) |
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156 | CALL crs_dom_coordinates( gphif, glamf, 'F', gphif_crs, glamf_crs ) |
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157 | |
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158 | ! 3.c. Get the horizontal mesh |
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159 | |
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160 | ! 3.c.1 Horizontal scale factors |
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161 | |
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162 | CALL crs_dom_hgr( e1t, e2t, 'T', e1t_crs, e2t_crs ) |
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163 | CALL crs_dom_hgr( e1u, e2u, 'U', e1u_crs, e2u_crs ) |
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164 | CALL crs_dom_hgr( e1v, e2v, 'V', e1v_crs, e2v_crs ) |
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165 | CALL crs_dom_hgr( e1f, e2f, 'F', e1f_crs, e2f_crs ) |
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166 | |
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167 | WHERE(e1t_crs == 0._wp) e1t_crs=r_inf |
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168 | WHERE(e1u_crs == 0._wp) e1u_crs=r_inf |
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169 | WHERE(e1v_crs == 0._wp) e1v_crs=r_inf |
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170 | WHERE(e1f_crs == 0._wp) e1f_crs=r_inf |
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171 | WHERE(e2t_crs == 0._wp) e2t_crs=r_inf |
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172 | WHERE(e2u_crs == 0._wp) e2u_crs=r_inf |
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173 | WHERE(e2v_crs == 0._wp) e2v_crs=r_inf |
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174 | WHERE(e2f_crs == 0._wp) e2f_crs=r_inf |
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175 | |
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176 | e1e2t_crs(:,:) = e1t_crs(:,:) * e2t_crs(:,:) |
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177 | |
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178 | |
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179 | ! 3.c.2 Coriolis factor |
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180 | |
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181 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
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182 | |
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183 | CASE ( 0, 1, 4 ) ! mesh on the sphere |
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184 | |
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185 | ff_crs(:,:) = 2. * omega * SIN( rad * gphif_crs(:,:) ) |
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186 | |
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187 | CASE DEFAULT |
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188 | |
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189 | IF(lwp) WRITE(numout,*) 'crsini.F90. crs_init. Only jphgr_msh = 0, 1 or 4 supported' |
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190 | |
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191 | END SELECT |
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192 | |
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193 | ! 3.d.1 mbathy ( vertical k-levels of bathymetry ) |
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194 | |
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195 | CALL crs_dom_bat |
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196 | |
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197 | ! |
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198 | CALL wrk_alloc(jpi, jpj, jpk, zfse3t, zfse3u, zfse3v, zfse3w ) |
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199 | ! |
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200 | zfse3t(:,:,:) = e3t_0(:,:,:) !fse3t(:,:,:) |
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201 | zfse3u(:,:,:) = e3u_0(:,:,:) !fse3u(:,:,:) |
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202 | zfse3v(:,:,:) = e3v_0(:,:,:) !fse3v(:,:,:) |
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203 | zfse3w(:,:,:) = e3w_0(:,:,:) !fse3w(:,:,:) |
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204 | |
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205 | ! 3.d.2 Surfaces |
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206 | e2e3u_crs(:,:,:)=0._wp |
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207 | e2e3u_msk(:,:,:)=0._wp |
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208 | e1e3v_crs(:,:,:)=0._wp |
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209 | e1e3v_msk(:,:,:)=0._wp |
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210 | CALL crs_dom_sfc( tmask, 'W', e1e2w_crs, e1e2w_msk, p_e1=e1t, p_e2=e2t ) |
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211 | CALL crs_dom_sfc( umask, 'U', e2e3u_crs, e2e3u_msk, p_e2=e2u, p_e3=zfse3u ) |
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212 | CALL crs_dom_sfc( vmask, 'V', e1e3v_crs, e1e3v_msk, p_e1=e1v, p_e3=zfse3v ) |
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213 | |
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214 | DO jk=1,jpk |
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215 | DO ji=1,jpi_crs |
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216 | DO jj=1,jpj_crs |
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217 | |
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218 | facsurfu(ji,jj,jk) = umask_crs(ji,jj,jk) * e2e3u_msk(ji,jj,jk) |
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219 | IF( e2e3u_crs(ji,jj,jk) .NE. 0._wp ) facsurfu(ji,jj,jk) = facsurfu(ji,jj,jk) / e2e3u_crs(ji,jj,jk) |
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220 | |
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221 | facsurfv(ji,jj,jk) = vmask_crs(ji,jj,jk) * e1e3v_msk(ji,jj,jk) |
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222 | IF( e1e3v_crs(ji,jj,jk) .NE. 0._wp ) facsurfv(ji,jj,jk) = facsurfv(ji,jj,jk) / e1e3v_crs(ji,jj,jk) |
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223 | |
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224 | ENDDO |
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225 | ENDDO |
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226 | ENDDO |
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227 | |
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228 | ! 3.d.3 Vertical scale factors |
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229 | ! |
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230 | CALL crs_dom_e3( e1t, e2t, zfse3t, p_sfc_3d_crs=e1e2w_crs, cd_type='T', p_mask=tmask, p_e3_crs=e3t_0_crs, p_e3_max_crs=e3t_max_0_crs) |
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231 | CALL crs_dom_e3( e1t, e2t, zfse3w, p_sfc_3d_crs=e1e2w_crs, cd_type='W', p_mask=tmask, p_e3_crs=e3w_0_crs, p_e3_max_crs=e3w_max_0_crs) |
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232 | CALL crs_dom_e3( e1u, e2u, zfse3u, p_sfc_2d_crs=e2u_crs , cd_type='U', p_mask=umask, p_e3_crs=e3u_0_crs, p_e3_max_crs=e3u_max_0_crs) |
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233 | CALL crs_dom_e3( e1v, e2v, zfse3v, p_sfc_2d_crs=e1v_crs , cd_type='V', p_mask=vmask, p_e3_crs=e3v_0_crs, p_e3_max_crs=e3v_max_0_crs) |
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234 | |
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235 | WHERE(e3t_max_0_crs == 0._wp) e3t_max_0_crs=r_inf |
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236 | WHERE(e3u_max_0_crs == 0._wp) e3u_max_0_crs=r_inf |
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237 | WHERE(e3v_max_0_crs == 0._wp) e3v_max_0_crs=r_inf |
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238 | WHERE(e3w_max_0_crs == 0._wp) e3w_max_0_crs=r_inf |
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239 | DO jk = 1, jpk |
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240 | DO ji = 1, jpi_crs |
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241 | DO jj = 1, jpj_crs |
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242 | IF( e3t_max_0_crs(ji,jj,jk) == 0._wp ) e3t_max_0_crs(ji,jj,jk) = e3t_1d(jk) |
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243 | IF( e3w_max_0_crs(ji,jj,jk) == 0._wp ) e3w_max_0_crs(ji,jj,jk) = e3w_1d(jk) |
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244 | IF( e3u_max_0_crs(ji,jj,jk) == 0._wp ) e3u_max_0_crs(ji,jj,jk) = e3t_1d(jk) |
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245 | IF( e3v_max_0_crs(ji,jj,jk) == 0._wp ) e3v_max_0_crs(ji,jj,jk) = e3t_1d(jk) |
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246 | ENDDO |
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247 | ENDDO |
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248 | ENDDO |
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249 | |
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250 | #if defined key_vvl |
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251 | e3t_max_n_crs=e3t_max_0_crs |
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252 | e3u_max_n_crs=e3u_max_0_crs |
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253 | e3v_max_n_crs=e3v_max_0_crs |
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254 | e3w_max_n_crs=e3w_max_0_crs |
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255 | #endif |
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256 | |
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257 | ht_0_crs(:,:)=0._wp |
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258 | DO jk = 1, jpk |
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259 | ht_0_crs(:,:)=ht_0_crs(:,:)+e3t_0_crs(:,:,jk)*tmask_crs(:,:,jk) |
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260 | ENDDO |
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261 | |
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262 | #if defined key_vvl |
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263 | e3t_0_crs(:,:,:) = e3t_0_crs(:,:,:) * tmask_crs(:,:,:) |
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264 | e3u_0_crs(:,:,:) = e3u_0_crs(:,:,:) * umask_crs(:,:,:) |
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265 | e3v_0_crs(:,:,:) = e3v_0_crs(:,:,:) * vmask_crs(:,:,:) |
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266 | e3w_0_crs(:,:,:) = e3w_0_crs(:,:,:) * tmask_crs(:,:,:) |
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267 | #endif |
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268 | |
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269 | ! Reset 0 to e3t_0 or e3w_0 |
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270 | DO jk = 1, jpk |
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271 | DO ji = 1, jpi_crs |
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272 | DO jj = 1, jpj_crs |
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273 | IF( e3t_0_crs(ji,jj,jk) == 0._wp ) e3t_0_crs(ji,jj,jk) = e3t_1d(jk) |
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274 | IF( e3w_0_crs(ji,jj,jk) == 0._wp ) e3w_0_crs(ji,jj,jk) = e3w_1d(jk) |
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275 | IF( e3u_0_crs(ji,jj,jk) == 0._wp ) e3u_0_crs(ji,jj,jk) = e3t_1d(jk) |
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276 | IF( e3v_0_crs(ji,jj,jk) == 0._wp ) e3v_0_crs(ji,jj,jk) = e3t_1d(jk) |
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277 | ENDDO |
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278 | ENDDO |
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279 | ENDDO |
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280 | |
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281 | #if defined key_vvl |
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282 | e3t_b_crs(:,:,:) = e3t_0_crs(:,:,:) |
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283 | e3u_b_crs(:,:,:) = e3u_0_crs(:,:,:) |
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284 | e3v_b_crs(:,:,:) = e3v_0_crs(:,:,:) |
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285 | e3w_b_crs(:,:,:) = e3w_0_crs(:,:,:) |
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286 | |
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287 | e3t_n_crs(:,:,:) = e3t_0_crs(:,:,:) |
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288 | e3u_n_crs(:,:,:) = e3u_0_crs(:,:,:) |
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289 | e3v_n_crs(:,:,:) = e3v_0_crs(:,:,:) |
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290 | e3w_n_crs(:,:,:) = e3w_0_crs(:,:,:) |
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291 | |
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292 | e3t_a_crs(:,:,:) = e3t_0_crs(:,:,:) |
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293 | e3u_a_crs(:,:,:) = e3u_0_crs(:,:,:) |
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294 | e3v_a_crs(:,:,:) = e3v_0_crs(:,:,:) |
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295 | e3w_a_crs(:,:,:) = e3w_0_crs(:,:,:) |
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296 | #endif |
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297 | |
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298 | ! 3.d.3 Vertical depth (meters) |
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299 | !cbr: il semblerait que p_e3=... ne soit pas utile ici !!!!!!!!! |
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300 | CALL crs_dom_ope( gdept_0, 'MAX', 'T', tmask, gdept_0_crs, p_e3=zfse3t, psgn=1.0 ) |
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301 | CALL crs_dom_ope( gdepw_0, 'MAX', 'W', tmask, gdepw_0_crs, p_e3=zfse3w, psgn=1.0 ) |
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302 | |
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303 | DO jk = 1, jpk |
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304 | DO ji = 1, jpi_crs |
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305 | DO jj = 1, jpj_crs |
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306 | IF( gdept_0_crs(ji,jj,jk) .LE. 0._wp ) gdept_0_crs(ji,jj,jk) = gdept_1d(jk) |
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307 | IF( gdepw_0_crs(ji,jj,jk) .LE. 0._wp ) gdepw_0_crs(ji,jj,jk) = gdepw_1d(jk) |
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308 | ENDDO |
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309 | ENDDO |
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310 | ENDDO |
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311 | |
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312 | #if defined key_vvl |
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313 | gdept_n_crs(:,:,:) = gdept_0_crs(:,:,:) |
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314 | gdepw_n_crs(:,:,:) = gdepw_0_crs(:,:,:) |
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315 | #endif |
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316 | |
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317 | |
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318 | !--------------------------------------------------------- |
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319 | ! 4. Coarse grid ocean volume and averaging weights |
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320 | !--------------------------------------------------------- |
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321 | CALL crs_dom_facvol( tmask, 'T', e1t, e2t, zfse3t, ocean_volume_crs_t, facvol_t ) |
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322 | ! |
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323 | bt_crs(:,:,:) = ocean_volume_crs_t(:,:,:) * facvol_t(:,:,:) |
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324 | ! |
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325 | r1_bt_crs(:,:,:) = 0._wp |
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326 | WHERE( bt_crs /= 0._wp ) r1_bt_crs(:,:,:) = 1._wp / bt_crs(:,:,:) |
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327 | |
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328 | CALL crs_dom_facvol( tmask, 'W', e1t, e2t, zfse3w, ocean_volume_crs_w, facvol_w ) |
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329 | |
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330 | |
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331 | !--------------------------------------------------------- |
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332 | ! 5. Build tmask_i_crs ( for crsdomwri and lib_fortran_crs (glob_sum) |
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333 | !--------------------------------------------------------- |
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334 | tmask_i_crs(:,:) = tmask_crs(:,:,1) |
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335 | iif = jpreci |
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336 | iil = nlci_crs - jpreci + 1 |
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337 | ijf = jpreci |
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338 | ijl = nlcj_crs - jprecj + 1 |
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339 | |
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340 | tmask_i_crs( 1:iif , : ) = 0._wp |
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341 | tmask_i_crs(iil:jpi_crs, : ) = 0._wp |
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342 | tmask_i_crs( : , 1:ijf ) = 0._wp |
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343 | tmask_i_crs( : ,ijl:jpj_crs) = 0._wp |
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344 | |
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345 | tpol_crs(1:jpiglo_crs,:) = 1._wp |
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346 | fpol_crs(1:jpiglo_crs,:) = 1._wp |
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347 | IF( jperio == 3 .OR. jperio == 4 ) THEN |
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348 | tpol_crs(jpiglo_crs/2+1:jpiglo_crs,:) = 0._wp |
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349 | fpol_crs( 1 :jpiglo_crs,:) = 0._wp |
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350 | IF( mjg_crs(nlej_crs) == jpiglo_crs ) THEN |
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351 | DO ji = iif+1, iil-1 |
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352 | tmask_i_crs(ji,nlej_crs-1) = tmask_i_crs(ji,nlej_crs-1) & |
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353 | & * tpol_crs(mig_crs(ji),1) |
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354 | ENDDO |
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355 | ENDIF |
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356 | ENDIF |
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357 | IF( jperio == 5 .OR. jperio == 6 ) THEN |
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358 | tpol_crs( 1 :jpiglo_crs,:)=0._wp |
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359 | fpol_crs(jpiglo_crs/2+1:jpiglo_crs,:)=0._wp |
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360 | ENDIF |
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361 | |
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362 | ! |
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363 | !--------------------------------------------------------- |
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364 | ! 6. Write out coarse meshmask (see OPA_SRC/DOM/domwri.F90 for ideas later) |
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365 | !--------------------------------------------------------- |
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366 | |
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367 | IF( nn_msh_crs > 0 ) THEN |
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368 | CALL dom_grid_crs ! Save the parent grid information & Switch to coarse grid domain |
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369 | CALL crs_dom_wri |
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370 | CALL dom_grid_glo ! Return to parent grid domain |
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371 | ENDIF |
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372 | |
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373 | |
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374 | rhop_crs(:,:,:)=0._wp ; rhd_crs(:,:,:)=0._wp ; rb2_crs(:,:,:)=0._wp |
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375 | |
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376 | |
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377 | !--------------------------------------------------------- |
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378 | ! 7. Finish and clean-up |
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379 | !--------------------------------------------------------- |
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380 | CALL wrk_dealloc(jpi, jpj, jpk, zfse3t, zfse3u, zfse3v, zfse3w ) |
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381 | |
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382 | IF( nn_timing == 1 ) CALL timing_stop('crs_init') |
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383 | |
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384 | END SUBROUTINE crs_init |
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385 | |
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386 | !!====================================================================== |
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387 | |
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388 | END MODULE crsini |
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