1 | MODULE icbstp |
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2 | !!====================================================================== |
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3 | !! *** MODULE icbstp *** |
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4 | !! Icebergs: initialise variables for iceberg tracking |
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5 | !!====================================================================== |
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6 | !! History : 3.3.1 ! 2010-01 (Martin&Adcroft) Original code |
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7 | !! - ! 2011-03 (Madec) Part conversion to NEMO form |
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8 | !! - ! Removal of mapping from another grid |
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9 | !! - ! 2011-04 (Alderson) Split into separate modules |
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10 | !! - ! Move budgets to icbdia routine |
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11 | !! - ! 2011-05 (Alderson) Add call to copy forcing arrays |
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12 | !! - ! into icb copies with haloes |
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13 | !!---------------------------------------------------------------------- |
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14 | |
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15 | !!---------------------------------------------------------------------- |
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16 | !! icb_stp : start iceberg tracking |
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17 | !! icb_end : end iceberg tracking |
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18 | !!---------------------------------------------------------------------- |
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19 | USE par_oce ! nemo parameters |
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20 | USE dom_oce ! ocean domain |
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21 | USE sbc_oce ! ocean surface forcing |
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22 | USE phycst ! physical constants |
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23 | ! |
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24 | USE icb_oce ! iceberg: define arrays |
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25 | USE icbini ! iceberg: initialisation routines |
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26 | USE icbutl ! iceberg: utility routines |
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27 | USE icbrst ! iceberg: restart routines |
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28 | USE icbdyn ! iceberg: dynamics (ie advection) routines |
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29 | USE icbclv ! iceberg: calving routines |
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30 | USE icbthm ! iceberg: thermodynamics routines |
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31 | USE icblbc ! iceberg: lateral boundary routines (including mpp) |
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32 | USE icbtrj ! iceberg: trajectory I/O routines |
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33 | USE icbdia ! iceberg: budget |
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34 | ! |
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35 | USE in_out_manager ! nemo IO |
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36 | USE lib_mpp ! massively parallel library |
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37 | USE iom ! I/O manager |
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38 | USE fldread ! field read |
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39 | USE timing ! timing |
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40 | |
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41 | IMPLICIT NONE |
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42 | PRIVATE |
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43 | |
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44 | PUBLIC icb_stp ! routine called in sbcmod.F90 module |
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45 | PUBLIC icb_end ! routine called in nemogcm.F90 module |
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46 | |
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47 | !!---------------------------------------------------------------------- |
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48 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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49 | !! $Id$ |
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50 | !! Software governed by the CeCILL license (see ./LICENSE) |
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51 | !!---------------------------------------------------------------------- |
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52 | CONTAINS |
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53 | |
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54 | SUBROUTINE icb_stp( kt, Kmm ) |
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55 | !!---------------------------------------------------------------------- |
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56 | !! *** ROUTINE icb_stp *** |
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57 | !! |
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58 | !! ** Purpose : iceberg time stepping. |
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59 | !! |
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60 | !! ** Method : - top level routine to do things in the correct order |
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61 | !!---------------------------------------------------------------------- |
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62 | INTEGER, INTENT(in) :: kt ! time step index |
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63 | INTEGER, INTENT(in) :: Kmm ! ocean time level index |
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64 | ! |
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65 | LOGICAL :: ll_sample_traj, ll_budget, ll_verbose ! local logical |
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66 | !!---------------------------------------------------------------------- |
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67 | ! |
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68 | IF( ln_timing ) CALL timing_start('icb_stp') |
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69 | |
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70 | ! !== start of timestep housekeeping ==! |
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71 | ! |
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72 | nktberg = kt |
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73 | ! |
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74 | !CALL test_icb_utl_getkb |
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75 | !CALL ctl_stop('end test icb') |
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76 | ! |
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77 | IF( nn_test_icebergs < 0 .OR. ln_use_calving ) THEN !* read calving data |
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78 | ! |
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79 | CALL fld_read ( kt, 1, sf_icb ) |
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80 | src_calving (:,:) = sf_icb(1)%fnow(:,:,1) ! calving in km^3/year (water equivalent) |
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81 | src_calving_hflx(:,:) = 0._wp ! NO heat flux for now |
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82 | ! |
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83 | ENDIF |
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84 | ! |
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85 | berg_grid%floating_melt(:,:) = 0._wp |
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86 | ! |
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87 | ! !* anything that needs to be reset to zero each timestep |
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88 | CALL icb_dia_step() ! for budgets is dealt with here |
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89 | ! |
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90 | ! !* write out time |
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91 | ll_verbose = .FALSE. |
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92 | IF( nn_verbose_write > 0 .AND. MOD( kt-1 , nn_verbose_write ) == 0 ) ll_verbose = ( nn_verbose_level > 0 ) |
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93 | ! |
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94 | IF( ll_verbose ) WRITE(numicb,9100) nktberg, ndastp, nsec_day |
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95 | 9100 FORMAT('kt= ',i8, ' day= ',i8,' secs=',i8) |
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96 | ! |
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97 | ! !* copy nemo forcing arrays into iceberg versions with extra halo |
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98 | CALL icb_utl_copy( Kmm ) ! only necessary for variables not on T points |
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99 | ! |
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100 | ! |
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101 | ! !== process icebergs ==! |
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102 | ! ! |
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103 | CALL icb_clv_flx( kt ) ! Accumulate ice from calving |
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104 | ! ! |
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105 | CALL icb_clv( kt ) ! Calve excess stored ice into icebergs |
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106 | ! ! |
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107 | ! |
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108 | ! !== For each berg, evolve ==! |
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109 | ! |
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110 | IF( ASSOCIATED(first_berg) ) CALL icb_dyn( kt ) ! ice berg dynamics |
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111 | |
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112 | IF( lk_mpp ) THEN ; CALL icb_lbc_mpp() ! Send bergs to other PEs |
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113 | ELSE ; CALL icb_lbc() ! Deal with any cyclic boundaries in non-mpp case |
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114 | ENDIF |
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115 | |
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116 | IF( ASSOCIATED(first_berg) ) CALL icb_thm( kt ) ! Ice berg thermodynamics (melting) + rolling |
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117 | ! |
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118 | ! |
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119 | ! !== diagnostics and output ==! |
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120 | ! |
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121 | ! !* For each berg, record trajectory (when needed) |
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122 | ll_sample_traj = .FALSE. |
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123 | IF( nn_sample_rate > 0 .AND. MOD(kt-1,nn_sample_rate) == 0 ) ll_sample_traj = .TRUE. |
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124 | IF( ll_sample_traj .AND. ASSOCIATED(first_berg) ) CALL icb_trj_write( kt ) |
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125 | |
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126 | ! !* Gridded diagnostics |
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127 | ! ! To get these iom_put's and those preceding to actually do something |
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128 | ! ! use key_iomput in cpp file and create content for XML file |
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129 | ! |
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130 | CALL iom_put( "calving" , berg_grid%calving (:,:) ) ! 'calving mass input' |
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131 | CALL iom_put( "berg_floating_melt", berg_grid%floating_melt(:,:) ) ! 'Melt rate of icebergs + bits' , 'kg/m2/s' |
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132 | CALL iom_put( "berg_stored_ice" , berg_grid%stored_ice (:,:,:) ) ! 'Accumulated ice mass by class', 'kg' |
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133 | ! |
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134 | CALL icb_dia_put() !* store mean budgets |
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135 | ! |
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136 | ! !* Dump icebergs to screen |
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137 | IF( nn_verbose_level >= 2 ) CALL icb_utl_print( 'icb_stp, status', kt ) |
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138 | ! |
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139 | ! !* Diagnose budgets |
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140 | ll_budget = .FALSE. |
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141 | IF( nn_verbose_write > 0 .AND. MOD(kt-1,nn_verbose_write) == 0 ) ll_budget = ln_bergdia |
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142 | CALL icb_dia( ll_budget ) |
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143 | ! |
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144 | IF( lrst_oce ) THEN !* restart |
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145 | CALL icb_rst_write( kt ) |
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146 | IF( nn_sample_rate > 0 ) CALL icb_trj_sync() |
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147 | ENDIF |
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148 | ! |
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149 | IF( ln_timing ) CALL timing_stop('icb_stp') |
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150 | ! |
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151 | END SUBROUTINE icb_stp |
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152 | |
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153 | |
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154 | SUBROUTINE icb_end( kt ) |
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155 | !!---------------------------------------------------------------------- |
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156 | !! *** ROUTINE icb_end *** |
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157 | !! |
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158 | !! ** Purpose : close iceberg files |
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159 | !! |
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160 | !!---------------------------------------------------------------------- |
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161 | INTEGER, INTENT( in ) :: kt ! model time-step index |
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162 | !!---------------------------------------------------------------------- |
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163 | ! |
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164 | ! finish with trajectories if they were written |
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165 | IF( nn_sample_rate > 0 ) CALL icb_trj_end() |
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166 | |
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167 | IF(lwp) WRITE(numout,'(a,i6)') 'icebergs: icb_end complete', narea |
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168 | ! |
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169 | IF( nn_verbose_level > 0 ) THEN |
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170 | CALL flush( numicb ) |
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171 | CLOSE( numicb ) |
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172 | ENDIF |
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173 | ! |
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174 | END SUBROUTINE icb_end |
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175 | |
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176 | !!====================================================================== |
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177 | END MODULE icbstp |
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