1 | MODULE isfcpl |
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2 | !!====================================================================== |
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3 | !! *** MODULE isfcpl *** |
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4 | !! |
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5 | !! iceshelf coupling module : module managing the coupling between NEMO and an ice sheet model |
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6 | !! |
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7 | !!====================================================================== |
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8 | !! History : 4.1 ! 2019-07 (P. Mathiot) Original code |
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9 | !!---------------------------------------------------------------------- |
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10 | |
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11 | !!---------------------------------------------------------------------- |
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12 | !! isfrst : read/write iceshelf variables in/from restart |
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13 | !!---------------------------------------------------------------------- |
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14 | USE isf ! ice shelf variable |
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15 | USE lib_mpp, ONLY: mpp_sum, mpp_max ! mpp routine |
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16 | USE domvvl , ONLY: dom_vvl_zgr ! vertical scale factor interpolation |
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17 | ! |
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18 | USE oce ! ocean dynamics and tracers |
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19 | USE in_out_manager ! I/O manager |
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20 | USE iom ! I/O library |
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21 | ! |
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22 | IMPLICIT NONE |
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23 | |
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24 | PRIVATE |
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25 | |
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26 | PUBLIC isfcpl_rst_write, isfcpl_init ! iceshelf restart read and write |
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27 | PUBLIC isfcpl_ssh, isfcpl_tra, isfcpl_vol, isfcpl_cons |
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28 | |
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29 | TYPE isfcons |
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30 | INTEGER :: ii ! i global |
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31 | INTEGER :: jj ! j global |
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32 | INTEGER :: kk ! k level |
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33 | REAL(wp):: dvol ! volume increment |
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34 | REAL(wp):: dsal ! salt increment |
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35 | REAL(wp):: dtem ! heat increment |
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36 | REAL(wp):: lon ! lon |
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37 | REAL(wp):: lat ! lat |
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38 | INTEGER :: ngb ! 0/1 (valid location or not (ie on halo or no neigbourg)) |
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39 | END TYPE |
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40 | ! |
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41 | !!---------------------------------------------------------------------- |
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42 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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43 | !! $Id: sbcisf.F90 10536 2019-01-16 19:21:09Z mathiot $ |
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44 | !! Software governed by the CeCILL license (see ./LICENSE) |
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45 | !!---------------------------------------------------------------------- |
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46 | CONTAINS |
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47 | SUBROUTINE isfcpl_init() |
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48 | ! |
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49 | ! start on an euler time step |
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50 | neuler = 0 |
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51 | ! |
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52 | CALL isf_alloc_cpl() |
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53 | ! |
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54 | ! extrapolation ssh |
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55 | CALL isfcpl_ssh() |
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56 | ! |
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57 | ! extrapolation tracer properties |
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58 | CALL isfcpl_tra() |
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59 | ! |
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60 | ! correction of the horizontal divergence and associated temp. and salt content flux |
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61 | ! Need to : - include in the cpl cons the risfcpl_vol/tsc contribution |
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62 | ! - decide how to manage thickness level change in conservation |
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63 | CALL isfcpl_vol() |
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64 | ! |
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65 | ! apply the 'conservation' method |
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66 | IF ( ln_isfcpl_cons ) CALL isfcpl_cons() |
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67 | ! |
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68 | ! mask velocity properly (mask used in restart not compatible with new mask) |
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69 | un(:,:,:) = un(:,:,:) * umask(:,:,:) |
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70 | vn(:,:,:) = vn(:,:,:) * vmask(:,:,:) |
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71 | ! |
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72 | ! all before fields set to now values |
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73 | tsb (:,:,:,:) = tsn (:,:,:,:) |
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74 | ub (:,:,:) = un (:,:,:) |
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75 | vb (:,:,:) = vn (:,:,:) |
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76 | sshb (:,:) = sshn (:,:) |
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77 | e3t_b(:,:,:) = e3t_n(:,:,:) |
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78 | |
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79 | ! prepare writing restart |
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80 | IF( lwxios ) THEN |
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81 | CALL iom_set_rstw_var_active('ssmask') |
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82 | CALL iom_set_rstw_var_active('tmask') |
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83 | CALL iom_set_rstw_var_active('e3t_n') |
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84 | CALL iom_set_rstw_var_active('e3u_n') |
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85 | CALL iom_set_rstw_var_active('e3v_n') |
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86 | END IF |
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87 | ! |
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88 | END SUBROUTINE isfcpl_init |
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89 | ! |
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90 | SUBROUTINE isfcpl_rst_write(kt) |
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91 | !!--------------------------------------------------------------------- |
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92 | !! isfrst_cpl_write : write icesheet coupling variables in restart |
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93 | !!--------------------------------------------------------------------- |
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94 | !!-------------------------- OUT -------------------------------------- |
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95 | !!-------------------------- IN -------------------------------------- |
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96 | INTEGER, INTENT(in) :: kt |
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97 | !!---------------------------------------------------------------------- |
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98 | !!---------------------------------------------------------------------- |
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99 | ! |
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100 | IF( lwxios ) CALL iom_swap( cwxios_context ) |
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101 | CALL iom_rstput( kt, nitrst, numrow, 'tmask' , tmask , ldxios = lwxios ) |
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102 | CALL iom_rstput( kt, nitrst, numrow, 'ssmask' , ssmask, ldxios = lwxios ) |
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103 | CALL iom_rstput( kt, nitrst, numrow, 'e3t_n' , e3t_n , ldxios = lwxios ) |
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104 | CALL iom_rstput( kt, nitrst, numrow, 'e3u_n' , e3u_n , ldxios = lwxios ) |
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105 | CALL iom_rstput( kt, nitrst, numrow, 'e3v_n' , e3v_n , ldxios = lwxios ) |
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106 | CALL iom_rstput( kt, nitrst, numrow, 'gdepw_n', gdepw_n , ldxios = lwxios ) |
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107 | IF( lwxios ) CALL iom_swap( cxios_context ) |
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108 | ! |
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109 | END SUBROUTINE isfcpl_rst_write |
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110 | |
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111 | SUBROUTINE isfcpl_ssh() |
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112 | !!---------------------------------------------------------------------- |
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113 | !! *** ROUTINE iscpl_ssh *** |
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114 | !! |
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115 | !! ** Purpose : basic guess of ssh in new wet cell during coupling step |
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116 | !! |
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117 | !! ** Method : basic extrapolation from neigbourg cells |
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118 | !! |
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119 | !!---------------------------------------------------------------------- |
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120 | !!-------------------------- OUT -------------------------------------- |
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121 | !!-------------------------- IN -------------------------------------- |
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122 | !!---------------------------------------------------------------------- |
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123 | !! |
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124 | INTEGER :: ji, jj, jd !! loop index |
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125 | INTEGER :: jip1, jim1, jjp1, jjm1 |
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126 | !! |
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127 | REAL(wp):: zsummsk |
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128 | REAL(wp), DIMENSION(jpi,jpj) :: zdssmask, zssmask0, zssmask_b, zssh |
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129 | !!---------------------------------------------------------------------- |
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130 | ! |
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131 | CALL iom_get( numror, jpdom_autoglo, 'ssmask' , zssmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
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132 | |
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133 | ! compute new ssh if we open a full water column |
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134 | ! rude average of the closest neigbourgs (e1e2t not taking into account) |
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135 | ! |
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136 | zssh(:,:) = sshn(:,:) |
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137 | zssmask0(:,:) = zssmask_b(:,:) |
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138 | ! |
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139 | DO jd = 1, nn_drown |
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140 | ! |
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141 | zdssmask(:,:) = ssmask(:,:) - zssmask0(:,:) |
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142 | DO jj = 2,jpj-1 |
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143 | DO ji = 2,jpi-1 |
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144 | jip1=ji+1; jim1=ji-1; |
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145 | jjp1=jj+1; jjm1=jj-1; |
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146 | ! |
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147 | zsummsk = zssmask0(jip1,jj) + zssmask0(jim1,jj) + zssmask0(ji,jjp1) + zssmask0(ji,jjm1) |
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148 | ! |
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149 | IF (zdssmask(ji,jj) == 1._wp .AND. zsummsk /= 0._wp) THEN |
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150 | sshn(ji,jj)=( zssh(jip1,jj)*zssmask0(jip1,jj) & |
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151 | & + zssh(jim1,jj)*zssmask0(jim1,jj) & |
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152 | & + zssh(ji,jjp1)*zssmask0(ji,jjp1) & |
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153 | & + zssh(ji,jjm1)*zssmask0(ji,jjm1)) / zsummsk |
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154 | zssmask_b(ji,jj) = 1._wp |
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155 | ENDIF |
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156 | END DO |
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157 | END DO |
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158 | ! |
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159 | zssh(:,:) = sshn(:,:) |
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160 | zssmask0(:,:) = zssmask_b(:,:) |
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161 | ! |
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162 | CALL lbc_lnk_multi( 'iscplrst', zssh, 'T', 1., zssmask0, 'T', 1. ) |
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163 | ! |
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164 | END DO |
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165 | ! |
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166 | ! update sshn |
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167 | sshn(:,:) = zssh(:,:) * ssmask(:,:) |
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168 | ! |
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169 | sshb(:,:) = sshn(:,:) |
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170 | ! |
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171 | ! recompute the vertical scale factor, depth and water thickness |
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172 | CALL dom_vvl_zgr() |
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173 | ! |
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174 | END SUBROUTINE isfcpl_ssh |
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175 | |
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176 | SUBROUTINE isfcpl_tra() |
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177 | !!---------------------------------------------------------------------- |
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178 | !! *** ROUTINE iscpl_tra *** |
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179 | !! |
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180 | !! ** Purpose : compute new tn, sn in case of evolving geometry of ice shelves |
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181 | !! |
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182 | !! ** Method : tn, sn : basic extrapolation from neigbourg cells |
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183 | !! |
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184 | !!---------------------------------------------------------------------- |
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185 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask_b |
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186 | !REAL(wp), DIMENSION(:,:,: ), INTENT(in ) :: pdepw_b !! depth w before |
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187 | !! |
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188 | INTEGER :: ji, jj, jk, jd !! loop index |
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189 | INTEGER :: jip1, jim1, jjp1, jjm1, jkp1, jkm1 |
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190 | !! |
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191 | REAL(wp):: zsummsk |
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192 | REAL(wp):: zdz, zdzm1, zdzp1 |
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193 | !! |
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194 | REAL(wp), DIMENSION(jpi,jpj) :: zdmask |
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195 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask0, zwmaskn |
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196 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask1, zwmaskb, ztmp3d |
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197 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts) :: zts0 |
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198 | !!---------------------------------------------------------------------- |
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199 | ! |
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200 | IF(lwp) WRITE(numout,*) ' isfrst_cpl_read: read ice sheet coupling restart variable ' |
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201 | IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~' |
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202 | IF(lwp) WRITE(numout,*) '' |
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203 | ! |
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204 | CALL iom_get( numror, jpdom_autoglo, 'tmask' , ztmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
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205 | !CALL iom_get( numror, jpdom_autoglo, 'wmask' , zwmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
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206 | !CALL iom_get( numror, jpdom_autoglo, 'gdepw_n', zdepw_b(:,:,:), ldxios = lrxios ) ! need to interpol vertical profile (vvl) |
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207 | ! |
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208 | ! |
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209 | ! compute new T/S (interpolation) if vvl only for common wet cell in before and after wmask |
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210 | !PM: Is this IF needed since change to VVL by default |
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211 | !bugged : to be corrected (PM) |
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212 | ! back up original t/s/mask |
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213 | !tsb (:,:,:,:) = tsn(:,:,:,:) |
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214 | ! |
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215 | ! compute new T/S (interpolation) if vvl only for common wet cell in before and after wmask |
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216 | |
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217 | ! IF (.NOT.ln_linssh) THEN |
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218 | ! DO jk = 2,jpk-1 |
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219 | ! DO jj = 1,jpj |
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220 | ! DO ji = 1,jpi |
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221 | ! IF (wmask(ji,jj,jk) * zwmaskb(ji,jj,jk) == 1._wp .AND. (tmask(ji,jj,1)==0._wp .OR. ztmask_b(ji,jj,1)==0._wp) ) THEN |
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222 | ! |
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223 | ! !compute weight |
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224 | ! zdzp1 = MAX(0._wp,pdepw_b(ji,jj,jk+1) - gdepw_n(ji,jj,jk+1)) |
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225 | ! zdzm1 = MAX(0._wp,gdepw_n(ji,jj,jk ) - pdepw_b(ji,jj,jk )) |
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226 | ! zdz = e3t_n(ji,jj,jk) - zdzp1 - zdzm1 ! if isf : e3t = gdepw_n(ji,jj,jk+1)- gdepw_n(ji,jj,jk) |
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227 | ! |
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228 | ! IF (zdz .LT. 0._wp) THEN |
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229 | ! CALL ctl_stop( 'STOP', 'rst_iscpl : unable to compute the interpolation' ) |
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230 | ! END IF |
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231 | ! |
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232 | ! tsn(ji,jj,jk,jp_tem) = ( zdzp1*tsb(ji,jj,jk+1,jp_tem) & |
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233 | ! & + zdz *tsb(ji,jj,jk ,jp_tem) & |
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234 | ! & + zdzm1*tsb(ji,jj,jk-1,jp_tem) )/e3t_n(ji,jj,jk) |
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235 | ! |
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236 | ! tsn(ji,jj,jk,jp_sal) = ( zdzp1*tsb(ji,jj,jk+1,jp_sal) & |
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237 | ! & + zdz *tsb(ji,jj,jk ,jp_sal) & |
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238 | ! & + zdzm1*tsb(ji,jj,jk-1,jp_sal) )/e3t_n(ji,jj,jk) |
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239 | ! |
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240 | ! END IF |
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241 | ! END DO |
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242 | ! END DO |
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243 | ! END DO |
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244 | ! END IF |
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245 | |
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246 | zts0(:,:,:,:) = tsn(:,:,:,:) |
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247 | ztmask0(:,:,:) = ztmask_b(:,:,:) |
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248 | ztmask1(:,:,:) = ztmask_b(:,:,:) |
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249 | ! |
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250 | ! iterate the extrapolation processes nn_drown times |
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251 | DO jd = 1,nn_drown ! resolution dependent (OK for ISOMIP+ case) |
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252 | DO jk = 1,jpk-1 |
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253 | ! |
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254 | ! define new wet cell |
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255 | zdmask(:,:) = tmask(:,:,jk) - ztmask0(:,:,jk); |
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256 | ! |
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257 | DO jj = 2,jpj-1 |
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258 | DO ji = 2,jpi-1 |
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259 | jip1=ji+1; jim1=ji-1; |
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260 | jjp1=jj+1; jjm1=jj-1; |
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261 | ! |
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262 | ! check if a wet neigbourg cell is present |
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263 | zsummsk = ztmask0(jip1,jj ,jk) + ztmask0(jim1,jj ,jk) & |
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264 | + ztmask0(ji ,jjp1,jk) + ztmask0(ji ,jjm1,jk) |
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265 | ! |
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266 | ! if neigbourg wet cell available at the same level |
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267 | IF ( zdmask(ji,jj) == 1._wp .AND. zsummsk /= 0._wp ) THEN |
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268 | ! |
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269 | ! horizontal basic extrapolation |
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270 | tsn(ji,jj,jk,1)=( zts0(jip1,jj ,jk,1) * ztmask0(jip1,jj ,jk) & |
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271 | & + zts0(jim1,jj ,jk,1) * ztmask0(jim1,jj ,jk) & |
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272 | & + zts0(ji ,jjp1,jk,1) * ztmask0(ji ,jjp1,jk) & |
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273 | & + zts0(ji ,jjm1,jk,1) * ztmask0(ji ,jjm1,jk) ) / zsummsk |
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274 | tsn(ji,jj,jk,2)=( zts0(jip1,jj ,jk,2) * ztmask0(jip1,jj ,jk) & |
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275 | & + zts0(jim1,jj ,jk,2) * ztmask0(jim1,jj ,jk) & |
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276 | & + zts0(ji ,jjp1,jk,2) * ztmask0(ji ,jjp1,jk) & |
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277 | & + zts0(ji ,jjm1,jk,2) * ztmask0(ji ,jjm1,jk) ) / zsummsk |
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278 | ! |
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279 | ! update mask for next pass |
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280 | ztmask1(ji,jj,jk)=1 |
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281 | ! |
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282 | ! in case no neigbourg wet cell available at the same level |
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283 | ! check if a wet cell is available below |
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284 | ELSEIF (zdmask(ji,jj) == 1._wp .AND. zsummsk == 0._wp) THEN |
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285 | ! |
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286 | ! vertical extrapolation if horizontal extrapolation failed |
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287 | jkm1=max(1,jk-1) ; jkp1=min(jpk,jk+1) |
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288 | ! |
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289 | ! check if a wet neigbourg cell is present |
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290 | zsummsk = ztmask0(ji,jj,jkm1) + ztmask0(ji,jj,jkp1) |
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291 | IF (zdmask(ji,jj) == 1._wp .AND. zsummsk /= 0._wp ) THEN |
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292 | tsn(ji,jj,jk,1)=( zts0(ji,jj,jkp1,1)*ztmask0(ji,jj,jkp1) & |
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293 | & + zts0(ji,jj,jkm1,1)*ztmask0(ji,jj,jkm1)) / zsummsk |
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294 | tsn(ji,jj,jk,2)=( zts0(ji,jj,jkp1,2)*ztmask0(ji,jj,jkp1) & |
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295 | & + zts0(ji,jj,jkm1,2)*ztmask0(ji,jj,jkm1)) / zsummsk |
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296 | ! |
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297 | ! update mask for next pass |
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298 | ztmask1(ji,jj,jk)=1._wp |
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299 | END IF |
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300 | END IF |
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301 | END DO |
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302 | END DO |
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303 | END DO |
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304 | ! |
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305 | ! update temperature and salinity and mask |
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306 | zts0(:,:,:,:) = tsn(:,:,:,:) |
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307 | ztmask0(:,:,:) = ztmask1(:,:,:) |
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308 | ! |
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309 | CALL lbc_lnk_multi( 'iscplrst', zts0(:,:,:,jp_tem), 'T', 1., zts0(:,:,:,jp_sal), 'T', 1., ztmask0, 'T', 1.) |
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310 | ! |
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311 | END DO ! nn_drown |
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312 | ! |
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313 | ! mask new tsn field |
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314 | tsn(:,:,:,jp_tem) = zts0(:,:,:,jp_tem) * tmask(:,:,:) |
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315 | tsn(:,:,:,jp_sal) = zts0(:,:,:,jp_sal) * tmask(:,:,:) |
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316 | ! |
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317 | tsb(:,:,:,:) = tsn(:,:,:,:) |
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318 | ! |
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319 | ! sanity check |
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320 | ! ----------------------------------------------------------------------------------------- |
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321 | ! case we open a cell but no neigbour cells available to get an estimate of T and S |
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322 | DO jk = 1,jpk-1 |
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323 | DO jj = 1,jpj |
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324 | DO ji = 1,jpi |
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325 | IF (tmask(ji,jj,jk) == 1._wp .AND. tsn(ji,jj,jk,2) == 0._wp) & |
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326 | & CALL ctl_stop('STOP', 'failing to fill all new weet cell, & |
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327 | & try increase nn_drown or activate XXXX & |
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328 | & in your domain cfg computation' ) |
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329 | END DO |
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330 | END DO |
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331 | END DO |
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332 | ! |
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333 | END SUBROUTINE isfcpl_tra |
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334 | |
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335 | SUBROUTINE isfcpl_vol() |
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336 | !!---------------------------------------------------------------------- |
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337 | !! *** ROUTINE iscpl_vol *** |
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338 | !! |
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339 | !! ** Purpose : |
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340 | !! |
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341 | !! |
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342 | !! ** Method : |
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343 | !! |
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344 | !!---------------------------------------------------------------------- |
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345 | !! |
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346 | INTEGER :: ji, jj, jk |
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347 | INTEGER :: ikb, ikt |
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348 | !! |
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349 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zqvolb, zqvoln |
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350 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask_b |
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351 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ze3u_b, ze3v_b |
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352 | !!---------------------------------------------------------------------- |
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353 | ! |
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354 | CALL iom_get( numror, jpdom_autoglo, 'tmask' , ztmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
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355 | CALL iom_get( numror, jpdom_autoglo, 'e3u_n' , ze3u_b , ldxios = lrxios ) |
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356 | CALL iom_get( numror, jpdom_autoglo, 'e3v_n' , ze3v_b , ldxios = lrxios ) |
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357 | ! |
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358 | ! get volume flux before coupling (>0 out) |
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359 | DO jk = 1, jpk ! Horizontal slab |
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360 | DO jj = 2, jpjm1 |
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361 | DO ji = 2, jpim1 |
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362 | zqvolb(ji,jj,jk) = ( e2u(ji,jj) * ze3u_b(ji,jj,jk) * un(ji,jj,jk) - e2u(ji-1,jj ) * ze3u_b(ji-1,jj ,jk) * un(ji-1,jj ,jk) & |
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363 | & + e1v(ji,jj) * ze3v_b(ji,jj,jk) * vn(ji,jj,jk) - e1v(ji ,jj-1) * ze3v_b(ji ,jj-1,jk) * vn(ji ,jj-1,jk) ) & |
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364 | & * ztmask_b(ji,jj,jk) |
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365 | END DO |
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366 | ENDDO |
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367 | ! |
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368 | ! properly mask velocity |
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369 | ! (velocity are still mask with old mask at this stage) |
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370 | un(:,:,jk) = un(:,:,jk) * umask(:,:,jk) |
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371 | vn(:,:,jk) = vn(:,:,jk) * vmask(:,:,jk) |
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372 | ! |
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373 | ! get volume flux after coupling (>0 out) |
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374 | DO jj = 2, jpjm1 |
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375 | DO ji = 2, jpim1 |
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376 | zqvoln(ji,jj,jk) = ( e2u(ji,jj) * e3u_n(ji,jj,jk) * un(ji,jj,jk) - e2u(ji-1,jj ) * e3u_n(ji-1,jj ,jk) * un(ji-1,jj ,jk) & |
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377 | & + e1v(ji,jj) * e3v_n(ji,jj,jk) * vn(ji,jj,jk) - e1v(ji ,jj-1) * e3v_n(ji ,jj-1,jk) * vn(ji ,jj-1,jk) ) & |
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378 | & * tmask(ji,jj,jk) |
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379 | END DO |
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380 | ENDDO |
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381 | ! |
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382 | ! get 3d volume flux difference (before - after cpl) (>0 out) |
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383 | ! correction to add is _b - _n |
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384 | risfcpl_vol(:,:,jk) = zqvolb(:,:,jk) - zqvoln(:,:,jk) |
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385 | END DO |
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386 | ! |
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387 | ! include the contribution of the vertical velocity in the volume flux correction |
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388 | DO jj = 2, jpjm1 |
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389 | DO ji = 2, jpim1 |
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390 | ! |
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391 | ikt = mikt(ji,jj) |
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392 | IF ( ikt > 1 .AND. ssmask(ji,jj) == 1 ) THEN |
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393 | risfcpl_vol(ji,jj,ikt) = risfcpl_vol(ji,jj,ikt) + SUM(zqvolb(ji,jj,1:ikt-1)) ! test sign |
---|
394 | ENDIF |
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395 | ! |
---|
396 | END DO |
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397 | ENDDO |
---|
398 | ! |
---|
399 | ! mask volume flux divergence correction |
---|
400 | risfcpl_vol(:,:,:) = risfcpl_vol(:,:,:) * tmask(:,:,:) |
---|
401 | ! |
---|
402 | CALL lbc_lnk( 'iscpl', risfcpl_vol, 'T', 1. ) |
---|
403 | CALL lbc_lnk( 'iscpl', zqvolb, 'T', 1. ) |
---|
404 | CALL lbc_lnk( 'iscpl', zqvoln, 'T', 1. ) |
---|
405 | ! |
---|
406 | ! get 3d tra increment to apply at the first time step |
---|
407 | ! temperature and salt content flux computed using local tsn |
---|
408 | ! (very simple advection scheme) |
---|
409 | ! (>0 out) |
---|
410 | risfcpl_tsc(:,:,:,jp_tem) = -risfcpl_vol(:,:,:) * tsn(:,:,:,jp_tem) |
---|
411 | risfcpl_tsc(:,:,:,jp_sal) = -risfcpl_vol(:,:,:) * tsn(:,:,:,jp_sal) |
---|
412 | ! |
---|
413 | ! ssh correction (for dynspg_ts) |
---|
414 | risfcpl_ssh(:,:) = 0.0 |
---|
415 | DO jk = 1,jpk |
---|
416 | risfcpl_ssh(:,:) = risfcpl_ssh(:,:) + risfcpl_vol(:,:,jk) * r1_e1e2t(:,:) |
---|
417 | END DO |
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418 | |
---|
419 | END SUBROUTINE isfcpl_vol |
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420 | |
---|
421 | SUBROUTINE isfcpl_cons() |
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422 | !!---------------------------------------------------------------------- |
---|
423 | !! *** ROUTINE iscpl_cons *** |
---|
424 | !! |
---|
425 | !! ** Purpose : compute the corrective increment in volume/salt/heat to put back the vol/heat/salt |
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426 | !! removed or added during the coupling processes (wet or dry new cell) |
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427 | !! |
---|
428 | !! ** Method : - compare volume/heat/salt before and after |
---|
429 | !! - look for the closest wet cells (share amoung neigbourgs if there are) |
---|
430 | !! - build the correction increment to applied at each time step |
---|
431 | !! |
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432 | !!---------------------------------------------------------------------- |
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433 | ! |
---|
434 | TYPE(isfcons), DIMENSION(:),ALLOCATABLE :: zisfpts |
---|
435 | ! |
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436 | INTEGER :: ji , jj , jk ! loop index |
---|
437 | INTEGER :: jip1 , jim1, jjp1, jjm1 |
---|
438 | INTEGER :: iig , ijg, ik |
---|
439 | INTEGER :: istart, iend, jisf |
---|
440 | INTEGER :: nisfg , ingb, ifind |
---|
441 | INTEGER, DIMENSION(jpnij) :: nisfl |
---|
442 | ! |
---|
443 | REAL(wp) :: z1_sum, z1_rdtiscpl |
---|
444 | REAL(wp) :: zdtem, zdsal, zdvol, zratio |
---|
445 | REAL(wp) :: zlon , zlat |
---|
446 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask_b !! mask before |
---|
447 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ze3t_b !! scale factor before |
---|
448 | !!---------------------------------------------------------------------- |
---|
449 | |
---|
450 | ! get restart variable |
---|
451 | CALL iom_get( numror, jpdom_autoglo, 'tmask' , ztmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
---|
452 | CALL iom_get( numror, jpdom_autoglo, 'e3t_n' , ze3t_b(:,:,:), ldxios = lrxios ) |
---|
453 | |
---|
454 | ! compute run length |
---|
455 | nstp_iscpl = nitend - nit000 + 1 |
---|
456 | rdt_iscpl = nstp_iscpl * rn_rdt |
---|
457 | z1_rdtiscpl = 1._wp / rdt_iscpl |
---|
458 | IF (lwp) WRITE(numout,*) ' nb of stp for cons = ', nstp_iscpl |
---|
459 | IF (lwp) WRITE(numout,*) ' coupling time step = ', rdt_iscpl |
---|
460 | |
---|
461 | ! mask tsn and tsb |
---|
462 | tsb(:,:,:,jp_tem) = tsb(:,:,:,jp_tem) * ztmask_b(:,:,:) |
---|
463 | tsn(:,:,:,jp_tem) = tsn(:,:,:,jp_tem) * tmask (:,:,:) |
---|
464 | tsb(:,:,:,jp_sal) = tsb(:,:,:,jp_sal) * ztmask_b(:,:,:) |
---|
465 | tsn(:,:,:,jp_sal) = tsn(:,:,:,jp_sal) * tmask (:,:,:) |
---|
466 | |
---|
467 | !============================================================================== |
---|
468 | ! diagnose the heat, salt and volume input and compute the correction variable |
---|
469 | !============================================================================== |
---|
470 | |
---|
471 | risfcpl_cons_vol = 0.0 |
---|
472 | risfcpl_cons_ssh = 0.0 |
---|
473 | risfcpl_cons_tsc = 0.0 |
---|
474 | |
---|
475 | DO jk = 1,jpk-1 |
---|
476 | DO jj = nldj,nlej |
---|
477 | DO ji = nldi,nlei |
---|
478 | |
---|
479 | ! volume diff |
---|
480 | zdvol = e3t_n(ji,jj,jk) * tmask(ji,jj,jk) - ze3t_b(ji,jj,jk) * ztmask_b(ji,jj,jk) |
---|
481 | |
---|
482 | ! heat diff |
---|
483 | zdtem = tsn(ji,jj,jk,jp_tem) * e3t_n(ji,jj,jk) & |
---|
484 | - tsb(ji,jj,jk,jp_tem) * ze3t_b(ji,jj,jk) |
---|
485 | |
---|
486 | ! salt diff |
---|
487 | zdsal = tsn(ji,jj,jk,jp_sal) * e3t_n(ji,jj,jk) & |
---|
488 | - tsb(ji,jj,jk,jp_sal) * ze3t_b(ji,jj,jk) |
---|
489 | |
---|
490 | ! volume, heat and salt differences in each cell (>0 means correction is an outward flux) |
---|
491 | risfcpl_cons_vol(ji,jj,jk) = zdvol * e1e2t(ji,jj) * z1_rdtiscpl |
---|
492 | risfcpl_cons_tsc(ji,jj,jk,jp_sal) = - zdsal * e1e2t(ji,jj) * z1_rdtiscpl |
---|
493 | risfcpl_cons_tsc(ji,jj,jk,jp_tem) = - zdtem * e1e2t(ji,jj) * z1_rdtiscpl |
---|
494 | |
---|
495 | END DO |
---|
496 | END DO |
---|
497 | END DO |
---|
498 | ! |
---|
499 | ! redistribute on valid point the vol/heat/salt removed during the coupling (ie when we dry a cell) |
---|
500 | ! where we dry a cell get the number of point |
---|
501 | ! compute the total number of point receiving a correction increment for each processor |
---|
502 | ! local |
---|
503 | nisfl=0 |
---|
504 | DO jk = 1,jpk-1 |
---|
505 | DO jj = nldj,nlej |
---|
506 | DO ji = nldi,nlei |
---|
507 | jip1=MIN(ji+1,jpi) ; jim1=MAX(ji-1,1) ; jjp1=MIN(jj+1,jpj) ; jjm1=MAX(jj-1,1) ; |
---|
508 | IF ( tmask(ji,jj,jk) == 0._wp .AND. ztmask_b(ji,jj,jk) == 1._wp ) nisfl(narea) = nisfl(narea) + MAX(SUM(tmask(jim1:jip1,jjm1:jjp1,jk)),1._wp) |
---|
509 | ENDDO |
---|
510 | ENDDO |
---|
511 | ENDDO |
---|
512 | ! |
---|
513 | ! global |
---|
514 | CALL mpp_sum('isfcpl',nisfl) |
---|
515 | nisfg = SUM(nisfl ) |
---|
516 | istart = SUM(nisfl(1:narea-1)) |
---|
517 | iend = SUM(nisfl(1:narea )) |
---|
518 | ! |
---|
519 | ! allocate list of point receiving correction |
---|
520 | ALLOCATE(zisfpts(nisfg)) |
---|
521 | zisfpts(:) = isfcons(0,0,0,-HUGE(1.0), -HUGE(1.0), -HUGE(1.0), -HUGE(1.0), -HUGE(1.0), 0) |
---|
522 | ! |
---|
523 | ! start computing the correction and fill zisfpts |
---|
524 | ! local |
---|
525 | jisf = istart |
---|
526 | DO jk = 1,jpk-1 |
---|
527 | DO jj = nldj,nlej |
---|
528 | DO ji = nldi,nlei |
---|
529 | IF ( tmask(ji,jj,jk) == 0._wp .AND. ztmask_b(ji,jj,jk) == 1._wp ) THEN |
---|
530 | |
---|
531 | jip1=MIN(ji+1,jpi) ; jim1=MAX(ji-1,1) ; jjp1=MIN(jj+1,jpj) ; jjm1=MAX(jj-1,1) ; |
---|
532 | |
---|
533 | zdvol = risfcpl_cons_vol(ji,jj,jk ) |
---|
534 | zdsal = risfcpl_cons_tsc(ji,jj,jk,jp_sal) |
---|
535 | zdtem = risfcpl_cons_tsc(ji,jj,jk,jp_tem) |
---|
536 | |
---|
537 | IF ( SUM( tmask(jim1:jip1,jjm1:jjp1,jk) ) > 0._wp ) THEN |
---|
538 | ! spread correction amoung neigbourg wet cells (horizontal direction first) |
---|
539 | ! as it is a rude correction corner and lateral cell have the same weight |
---|
540 | ! |
---|
541 | z1_sum = 1._wp / SUM( tmask(jim1:jip1,jjm1:jjp1,jk) ) |
---|
542 | ! |
---|
543 | ! lateral cells |
---|
544 | IF (tmask(jip1,jj ,jk) == 1) CALL update_isfpts(zisfpts, jisf, jip1, jj , jk, zdvol, zdsal, zdtem, z1_sum) |
---|
545 | IF (tmask(jim1,jj ,jk) == 1) CALL update_isfpts(zisfpts, jisf, jim1, jj , jk, zdvol, zdsal, zdtem, z1_sum) |
---|
546 | IF (tmask(ji ,jjp1,jk) == 1) CALL update_isfpts(zisfpts, jisf, ji , jjp1, jk, zdvol, zdsal, zdtem, z1_sum) |
---|
547 | IF (tmask(ji ,jjm1,jk) == 1) CALL update_isfpts(zisfpts, jisf, ji , jjm1, jk, zdvol, zdsal, zdtem, z1_sum) |
---|
548 | ! |
---|
549 | ! corner cells |
---|
550 | IF (tmask(jip1,jjm1,jk) == 1) CALL update_isfpts(zisfpts, jisf, jip1, jjm1, jk, zdvol, zdsal, zdtem, z1_sum) |
---|
551 | IF (tmask(jim1,jjm1,jk) == 1) CALL update_isfpts(zisfpts, jisf, jim1, jjm1, jk, zdvol, zdsal, zdtem, z1_sum) |
---|
552 | IF (tmask(jim1,jjp1,jk) == 1) CALL update_isfpts(zisfpts, jisf, jim1, jjp1, jk, zdvol, zdsal, zdtem, z1_sum) |
---|
553 | IF (tmask(jip1,jjp1,jk) == 1) CALL update_isfpts(zisfpts, jisf, jip1, jjp1, jk, zdvol, zdsal, zdtem, z1_sum) |
---|
554 | ! |
---|
555 | ELSE IF ( tmask(ji,jj,jk+1) == 1._wp ) THEN |
---|
556 | ! spread correction amoung neigbourg wet cells (vertical direction) |
---|
557 | CALL update_isfpts(zisfpts, jisf, ji , jj , jk+1, zdvol, zdsal, zdtem, 1., 0) |
---|
558 | ELSE |
---|
559 | ! need to find where to put correction in later on |
---|
560 | CALL update_isfpts(zisfpts, jisf, ji , jj , jk , zdvol, zdsal, zdtem, 1., 1) |
---|
561 | END IF |
---|
562 | END IF |
---|
563 | END DO |
---|
564 | END DO |
---|
565 | END DO |
---|
566 | ! |
---|
567 | ! share data among all processes because for some point we need to find the closest wet point (could be on other process) |
---|
568 | DO jisf = 1,nisfg |
---|
569 | ! |
---|
570 | ! indices (conversion to global indices and sharing) |
---|
571 | iig = zisfpts(jisf)%ii ; ijg = zisfpts(jisf)%jj ; ik = zisfpts(jisf)%kk |
---|
572 | CALL mpp_max('isfcpl',iig) ; CALL mpp_max('isfcpl',ijg) ; CALL mpp_max('isfcpl',ik) |
---|
573 | ! |
---|
574 | ! data |
---|
575 | zdvol = zisfpts(jisf)%dvol ; zdsal = zisfpts(jisf)%dsal ; zdtem = zisfpts(jisf)%dtem |
---|
576 | CALL mpp_max('isfcpl',zdvol) ; CALL mpp_max('isfcpl',zdsal) ; CALL mpp_max('isfcpl',zdtem) |
---|
577 | ! |
---|
578 | ! location |
---|
579 | zlat = zisfpts(jisf)%lat ; zlon = zisfpts(jisf)%lon |
---|
580 | CALL mpp_max('isfcpl',zlat) ; CALL mpp_max('isfcpl',zlon) |
---|
581 | ! |
---|
582 | ! find flag |
---|
583 | ingb = zisfpts(jisf)%ngb |
---|
584 | CALL mpp_max('isfcpl',ingb) |
---|
585 | ! |
---|
586 | ! fill the 3d correction array |
---|
587 | CALL get_correction(iig, ijg, ik, zlon, zlat, zdvol, zdsal, zdtem, ingb) |
---|
588 | ! |
---|
589 | END DO |
---|
590 | ! |
---|
591 | ! mask (>0 out) |
---|
592 | risfcpl_cons_vol(:,:,: ) = risfcpl_cons_vol(:,:,: ) * tmask(:,:,:) |
---|
593 | risfcpl_cons_tsc(:,:,:,jp_sal) = risfcpl_cons_tsc(:,:,:,jp_sal) * tmask(:,:,:) |
---|
594 | risfcpl_cons_tsc(:,:,:,jp_tem) = risfcpl_cons_tsc(:,:,:,jp_tem) * tmask(:,:,:) |
---|
595 | ! |
---|
596 | ! add lbclnk |
---|
597 | CALL lbc_lnk_multi( 'iscplrst', risfcpl_cons_tsc(:,:,:,jp_tem), 'T', 1., risfcpl_cons_tsc(:,:,:,jp_sal), 'T', 1., risfcpl_cons_vol, 'T', 1.) |
---|
598 | ! |
---|
599 | ! ssh correction (for dynspg_ts) |
---|
600 | DO jk = 1,jpk |
---|
601 | risfcpl_cons_ssh(:,:) = risfcpl_cons_ssh(:,:) + risfcpl_cons_vol(:,:,jk) |
---|
602 | END DO |
---|
603 | risfcpl_cons_ssh(:,:) = risfcpl_cons_ssh(:,:) * r1_e1e2t(:,:) |
---|
604 | ! |
---|
605 | END SUBROUTINE isfcpl_cons |
---|
606 | ! |
---|
607 | SUBROUTINE update_isfpts(sisfpts, kpts, ki, kj, kk, pdvol, pdsal, pdtem, pratio, kfind) |
---|
608 | !!--------------------------------------------------------------------- |
---|
609 | !! *** ROUTINE update_isfpts *** |
---|
610 | !! |
---|
611 | !! ** Purpose : if a cell become dry, we need to put the corrective increment elsewhere |
---|
612 | !! |
---|
613 | !! ** Action : update the list of point |
---|
614 | !! |
---|
615 | !!---------------------------------------------------------------------- |
---|
616 | !!---------------------------------------------------------------------- |
---|
617 | TYPE(isfcons), DIMENSION(:), INTENT(inout) :: sisfpts |
---|
618 | INTEGER, INTENT(inout) :: kpts |
---|
619 | !!---------------------------------------------------------------------- |
---|
620 | INTEGER, INTENT(in ) :: ki, kj, kk |
---|
621 | INTEGER, INTENT(in ), OPTIONAL :: kfind |
---|
622 | REAL(wp), INTENT(in ) :: pdvol, pdsal, pdtem, pratio |
---|
623 | !!---------------------------------------------------------------------- |
---|
624 | INTEGER :: ifind |
---|
625 | !!---------------------------------------------------------------------- |
---|
626 | ! |
---|
627 | ! increment position |
---|
628 | kpts = kpts + 1 |
---|
629 | ! |
---|
630 | ! define if we need to look for closest valid wet cell (no neighbours or neigbourg on halo) |
---|
631 | IF ( PRESENT(kfind) ) THEN |
---|
632 | ifind = kfind |
---|
633 | ELSE |
---|
634 | ifind = ( 1 - tmask_h(ki,kj) ) * tmask(ki,kj,kk) |
---|
635 | END IF |
---|
636 | ! |
---|
637 | ! update isfpts structure |
---|
638 | sisfpts(kpts) = isfcons(mig(ki), mjg(kj), kk, pratio * pdvol, pratio * pdsal, pratio * pdtem, glamt(ki,kj), gphit(ki,kj), ifind ) |
---|
639 | ! |
---|
640 | END SUBROUTINE update_isfpts |
---|
641 | ! |
---|
642 | SUBROUTINE get_correction( ki, kj, kk, zlon, zlat, pvolinc, psalinc, pteminc, kfind) |
---|
643 | !!--------------------------------------------------------------------- |
---|
644 | !! *** ROUTINE get_correction *** |
---|
645 | !! |
---|
646 | !! ** Action : - Find the closest valid cell if needed (wet and not on the halo) |
---|
647 | !! - Scale the correction depending of pratio (case where multiple wet neigbourgs) |
---|
648 | !! - Fill the correction array |
---|
649 | !! |
---|
650 | !!---------------------------------------------------------------------- |
---|
651 | INTEGER , INTENT(in) :: ki, kj, kk, kfind ! target point |
---|
652 | REAL(wp), INTENT(in) :: zlon, zlat |
---|
653 | REAL(wp), INTENT(in) :: pvolinc, pteminc,psalinc ! correction increment for vol/temp/salt |
---|
654 | !!---------------------------------------------------------------------- |
---|
655 | INTEGER :: jj, ji, iig, ijg |
---|
656 | !!---------------------------------------------------------------------- |
---|
657 | ! |
---|
658 | ! define global indice of correction location |
---|
659 | iig = ki ; ijg = kj |
---|
660 | IF ( kfind == 1 ) CALL dom_ngb( zlon, zlat, iig, ijg,'T', kk) |
---|
661 | ! |
---|
662 | ! fill the correction array |
---|
663 | DO jj = mj0(ijg),mj1(ijg) |
---|
664 | DO ji = mi0(iig),mi1(iig) |
---|
665 | ! correct the vol_flx in the closest cell |
---|
666 | risfcpl_cons_vol(ji,jj,kk) = risfcpl_cons_vol(ji,jj,kk ) + pvolinc |
---|
667 | risfcpl_cons_tsc(ji,jj,kk,jp_sal) = risfcpl_cons_tsc(ji,jj,kk,jp_sal) + psalinc |
---|
668 | risfcpl_cons_tsc(ji,jj,kk,jp_tem) = risfcpl_cons_tsc(ji,jj,kk,jp_tem) + pteminc |
---|
669 | END DO |
---|
670 | END DO |
---|
671 | |
---|
672 | END SUBROUTINE get_correction |
---|
673 | |
---|
674 | END MODULE isfcpl |
---|