1 | MODULE stpctl |
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2 | !!============================================================================== |
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3 | !! *** MODULE stpctl *** |
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4 | !! Ocean run control : gross check of the ocean time stepping |
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5 | !!============================================================================== |
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6 | |
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7 | !!---------------------------------------------------------------------- |
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8 | !! stp_ctl : Control the run |
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9 | !!---------------------------------------------------------------------- |
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10 | !! * Modules used |
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11 | USE oce ! ocean dynamics and tracers variables |
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12 | USE dom_oce ! ocean space and time domain variables |
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13 | USE sol_oce ! ocean space and time domain variables |
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14 | USE in_out_manager ! I/O manager |
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15 | USE solisl ! ??? |
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16 | USE diawri ! ocean output file |
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17 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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18 | USE lib_mpp ! distributed memory computing |
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19 | |
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20 | IMPLICIT NONE |
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21 | PRIVATE |
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22 | |
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23 | !! * Accessibility |
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24 | PUBLIC stp_ctl ! routine called by step.F90 |
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25 | !!---------------------------------------------------------------------- |
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26 | |
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27 | CONTAINS |
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28 | |
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29 | SUBROUTINE stp_ctl( kt, kindic ) |
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30 | !!---------------------------------------------------------------------- |
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31 | !! *** ROUTINE stp_ctl *** |
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32 | !! |
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33 | !! ** Purpose : Control the run |
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34 | !! |
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35 | !! ** Method : - Save the time step in numstp |
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36 | !! - Print it each 50 time steps |
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37 | !! - Print solver statistics in numsol |
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38 | !! - Stop the run IF problem for the solver ( indec < 0 ) |
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39 | !! |
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40 | !! History : |
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41 | !! ! 91-03 () |
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42 | !! ! 91-11 (G. Madec) |
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43 | !! ! 92-06 (M. Imbard) |
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44 | !! ! 97-06 (A.M. Treguier) |
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45 | !! 8.5 ! 02-06 (G. Madec) F90: Free form and module |
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46 | !!---------------------------------------------------------------------- |
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47 | !! * Arguments |
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48 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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49 | INTEGER, INTENT( inout ) :: kindic ! indicator of solver convergence |
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50 | |
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51 | !! * local declarations |
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52 | INTEGER :: ji, jj, jk ! dummy loop indices |
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53 | INTEGER :: ii, ij, ik ! temporary integers |
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54 | REAL(wp) :: zumax, zsmin ! temporary scalars |
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55 | INTEGER, DIMENSION(3) :: ilocu ! |
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56 | INTEGER, DIMENSION(2) :: ilocs ! |
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57 | #if defined key_dynspg_rl |
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58 | INTEGER :: jni ! dummy loop indice |
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59 | REAL(wp) :: zfact ! temporary scalar |
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60 | #endif |
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61 | !!---------------------------------------------------------------------- |
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62 | !! OPA 8.5, LODYC-IPSL (2002) |
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63 | !!---------------------------------------------------------------------- |
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64 | |
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65 | IF( kt == nit000 .AND. lwp ) THEN |
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66 | WRITE(numout,*) |
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67 | WRITE(numout,*) 'stp_ctl : time-stepping control' |
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68 | WRITE(numout,*) '~~~' |
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69 | ! open time.step file |
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70 | CALL ctlopn( numstp, 'time.step', 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', 1, numout, lwp, 1 ) |
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71 | ENDIF |
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72 | |
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73 | ! save the current time step in numstp |
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74 | ! ------------------------------------ |
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75 | IF(lwp) WRITE(numstp,9100) kt |
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76 | IF(lwp) REWIND(numstp) |
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77 | 9100 FORMAT(1x, i8) |
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78 | |
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79 | |
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80 | ! elliptic solver statistics |
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81 | ! ----------------------------- |
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82 | ! Solver |
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83 | IF(lwp) WRITE(numsol,9200) kt, niter, res, SQRT(epsr)/eps |
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84 | 9200 FORMAT(' it :', i8, ' niter :', i4, ' res :',e20.10,' b :',e20.10) |
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85 | |
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86 | ! Islands (if exist) |
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87 | IF( l_isl ) CALL isl_stp_ctl( kt, kindic ) |
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88 | |
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89 | |
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90 | ! Output in numwso and numwvo IF kindic<0 |
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91 | ! --------------------------------------- |
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92 | ! (i.e. problem for the solver) |
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93 | IF( kindic < 0 ) THEN |
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94 | IF(lwp) THEN |
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95 | WRITE(numout,*) ' stpctl: the elliptic solver DO not converge or explode' |
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96 | WRITE(numout,*) ' ====== ' |
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97 | WRITE(numout,9200) kt, niter, res, sqrt(epsr)/eps |
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98 | WRITE(numout,*) |
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99 | WRITE(numout,*) ' stpctl: output of last fields in numwso' |
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100 | WRITE(numout,*) ' numwvo' |
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101 | WRITE(numout,*) ' ====== *******************************' |
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102 | ENDIF |
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103 | CALL dia_wri( kt, kindic ) |
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104 | ENDIF |
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105 | |
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106 | ! Test maximum of velocity (zonal only) |
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107 | ! ------------------------ |
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108 | !! zumax = MAXVAL( ABS( un(:,:,:) ) ) ! slower than the following loop on NEC SX5 |
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109 | zumax = 0.0 |
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110 | DO jk = 1, jpk |
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111 | DO jj = 1, jpj |
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112 | DO ji = 1, jpi |
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113 | zumax = MAX(zumax,ABS(un(ji,jj,jk))) |
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114 | END DO |
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115 | END DO |
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116 | END DO |
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117 | #if defined key_mpp |
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118 | CALL mpp_max( zumax ) |
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119 | #endif |
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120 | IF( MOD( kt, nwrite ) == 1 ) THEN |
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121 | IF(lwp) WRITE(numout,*) ' ==>> time-step= ',kt,' abs(U) max: ', zumax |
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122 | ENDIF |
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123 | IF( zumax > 20.) THEN |
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124 | ilocu = MAXLOC( ABS( un(:,:,:) ) ) |
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125 | ii = ilocu(1) + nimpp - 1 |
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126 | ij = ilocu(2) + njmpp - 1 |
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127 | ik = ilocu(3) |
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128 | #if defined key_mpp |
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129 | CALL mpp_isl( ii ) |
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130 | CALL mpp_isl( ij ) |
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131 | CALL mpp_isl( ik ) |
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132 | #endif |
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133 | IF(lwp) THEN |
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134 | WRITE(numout,cform_err) |
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135 | WRITE(numout,*) ' stpctl: the zonal velocity is larger than 20 m/s' |
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136 | WRITE(numout,*) ' ====== ' |
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137 | WRITE(numout,9400) kt, zumax, ii, ij, ik |
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138 | WRITE(numout,*) |
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139 | WRITE(numout,*) ' output of last fields in numwso' |
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140 | ENDIF |
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141 | kindic = -3 |
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142 | CALL dia_wri( kt, kindic ) |
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143 | ENDIF |
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144 | 9400 FORMAT (' kt=',i6,' max abs(U): ',1pg11.4,', i j k: ',3i4) |
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145 | |
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146 | |
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147 | ! Test minimum of salinity |
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148 | ! ------------------------ |
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149 | !! zsmin = MINVAL( sn(:,:,1), mask = tmask(:,:,1) == 1.e0 ) |
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150 | ! slower than the following loop on NEC SX5 |
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151 | zsmin = 100.0 |
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152 | DO jj = 2, jpjm1 |
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153 | DO ji = 1, jpi |
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154 | IF( tmask(ji,jj,1) == 1) zsmin = MIN(zsmin,sn(ji,jj,1)) |
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155 | END DO |
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156 | END DO |
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157 | #if defined key_mpp |
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158 | CALL mpp_min( zsmin ) |
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159 | #endif |
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160 | IF( MOD( kt, nwrite ) == 1 ) THEN |
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161 | IF(lwp) WRITE(numout,*) ' ==>> time-step= ',kt,' SSS min:', zsmin |
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162 | ENDIF |
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163 | IF( zsmin < 0.) THEN |
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164 | ilocs = MINLOC( sn(:,:,1), mask = tmask(:,:,1) == 1.e0 ) |
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165 | ii = ilocs(1) + nimpp - 1 |
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166 | ij = ilocs(2) + njmpp - 1 |
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167 | #if defined key_mpp |
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168 | CALL mpp_isl( ii ) |
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169 | CALL mpp_isl( ij ) |
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170 | #endif |
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171 | IF(lwp) THEN |
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172 | WRITE(numout,cform_err) |
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173 | WRITE(numout,*) 'stp_ctl : NEGATIVE sea surface salinity' |
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174 | WRITE(numout,*) '======= ' |
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175 | WRITE(numout,9500) kt, zsmin, ii, ij |
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176 | WRITE(numout,*) |
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177 | WRITE(numout,*) ' output of last fields in numwso' |
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178 | ENDIF |
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179 | IF( kindic < 0 ) THEN |
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180 | IF(lwp) WRITE(numout,*) ' stpctl diabort done. We wont do it again ' |
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181 | ELSE |
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182 | kindic = -3 |
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183 | CALL dia_wri(kt,kindic) |
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184 | ENDIF |
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185 | ENDIF |
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186 | 9500 FORMAT (' kt=',i6,' min SSS: ',1pg11.4,', i j: ',2i4) |
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187 | |
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188 | END SUBROUTINE stp_ctl |
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189 | |
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190 | !!====================================================================== |
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191 | END MODULE stpctl |
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