1 | MODULE disvert_mod |
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2 | USE icosa |
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3 | REAL(rstd), SAVE, POINTER :: ap(:) |
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4 | REAL(rstd), SAVE, POINTER :: bp(:) |
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5 | REAL(rstd), SAVE, POINTER :: presnivs(:) |
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6 | REAL(rstd), SAVE, POINTER :: mass_al(:), mass_bl(:), mass_ak(:), mass_bk(:), mass_dak(:), mass_dbk(:) |
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7 | REAL(rstd) :: ptop ! pressure at top of atmosphere l=llm+1 |
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8 | |
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9 | CONTAINS |
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10 | |
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11 | SUBROUTINE init_disvert |
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12 | USE disvert_std_mod, ONLY: ap_std=>ap, bp_std=>bp, presnivs_std=>presnivs, init_disvert_std=>init_disvert |
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13 | USE disvert_ncar_mod, ONLY: ap_ncar=>ap, bp_ncar=>bp, presnivs_ncar=>presnivs, init_disvert_ncar=>init_disvert |
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14 | USE disvert_ncarl30_mod, ONLY: ap_ncarl30=>ap, bp_ncarl30=>bp, presnivs_ncarl30=>presnivs, init_disvert_ncarl30=>init_disvert |
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15 | USE disvert_dcmip31_mod, ONLY: ap_dcmip31=>ap, bp_dcmip31=>bp, presnivs_dcmip31=>presnivs, init_disvert_dcmip31=>init_disvert |
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16 | USE disvert_dcmip200_mod, ONLY: ap_dcmip200=>ap, bp_dcmip200=>bp, presnivs_dcmip200=>presnivs, init_disvert_dcmip200=>init_disvert |
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17 | USE icosa |
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18 | USE mpipara |
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19 | IMPLICIT NONE |
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20 | CHARACTER(LEN=255) :: disvert_type = 'std' |
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21 | INTEGER :: l |
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22 | |
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23 | CALL getin("disvert",disvert_type) |
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24 | |
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25 | SELECT CASE (TRIM(disvert_type)) |
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26 | CASE('std') |
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27 | |
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28 | CALL init_disvert_std |
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29 | ap=>ap_std |
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30 | bp=>bp_std |
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31 | presnivs=>presnivs_std |
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32 | |
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33 | CASE ('ncar') |
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34 | |
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35 | CALL init_disvert_ncar |
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36 | ap=>ap_ncar |
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37 | bp=>bp_ncar |
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38 | presnivs=>presnivs_ncar |
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39 | |
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40 | CASE ('dcmip31') |
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41 | |
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42 | CALL init_disvert_dcmip31 |
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43 | ap=>ap_dcmip31 |
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44 | bp=>bp_dcmip31 |
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45 | presnivs=>presnivs_dcmip31 |
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46 | |
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47 | CASE ('dcmip200') |
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48 | |
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49 | CALL init_disvert_dcmip200 |
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50 | ap=>ap_dcmip200 |
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51 | bp=>bp_dcmip200 |
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52 | presnivs=>presnivs_dcmip200 |
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53 | |
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54 | CASE ('ncarl30') |
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55 | |
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56 | CALL init_disvert_ncarl30 |
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57 | ap=>ap_ncarl30 |
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58 | bp=>bp_ncarl30 |
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59 | presnivs=>presnivs_ncarl30 |
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60 | |
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61 | CASE default |
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62 | IF (is_mpi_root) PRINT*,'Bad selector for variable disvert : <', TRIM(disvert_type),"> options are <std>, <ncar>, <ncarl30>" |
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63 | STOP |
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64 | |
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65 | END SELECT |
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66 | |
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67 | ! Convert from pressure coordinate to mass coordinate |
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68 | ! pk = ap(k) + bp(k)*ps(ij) = ptop + g*( mass_ak(k) + mass_bk(k)*ms(ij) ) |
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69 | ptop = ap(llm+1) |
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70 | ALLOCATE(mass_al(llm+1)) |
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71 | ALLOCATE(mass_bl(llm+1)) |
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72 | ALLOCATE(mass_ak(llm)) |
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73 | ALLOCATE(mass_bk(llm)) |
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74 | ALLOCATE(mass_dak(llm)) |
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75 | ALLOCATE(mass_dbk(llm)) |
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76 | |
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77 | ! FIXME : leave ps for the moment ; change ps to ms later |
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78 | DO l=1,llm+1 |
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79 | ! mass_al(l) = (ap(l)-ptop)/g |
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80 | ! mass_bl(l) = bp(l)/g |
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81 | mass_al(l) = (ap(l)-ptop) |
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82 | mass_bl(l) = bp(l) |
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83 | END DO |
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84 | DO l=1,llm |
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85 | mass_ak(l) = .5*(mass_al(l)+mass_al(l+1)) |
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86 | mass_bk(l) = .5*(mass_bl(l)+mass_bl(l+1)) |
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87 | mass_dak(l) = mass_al(l)-mass_al(l+1) ! >0 |
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88 | mass_dbk(l) = mass_bl(l)-mass_bl(l+1) ! >0 |
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89 | END DO |
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90 | |
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91 | END SUBROUTINE init_disvert |
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92 | |
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93 | SUBROUTINE write_apbp |
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94 | USE icosa |
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95 | USE netcdf_mod |
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96 | IMPLICIT NONE |
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97 | REAL(rstd) :: val(llm) |
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98 | INTEGER :: status |
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99 | INTEGER :: lev,ilev |
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100 | INTEGER :: ncid,levid,ilevid,hyaiid,hybiid,hyamid,hybmid,P0id |
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101 | INTEGER :: l |
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102 | |
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103 | status = NF90_CREATE('apbp.nc', NF90_CLOBBER, ncid) |
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104 | status = NF90_DEF_DIM(ncid,'lev',llm,lev) |
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105 | status = NF90_DEF_DIM(ncid,'ilev',llm+1,ilev) |
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106 | |
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107 | status = NF90_DEF_VAR(ncid,'lev',NF90_DOUBLE,(/ lev /),levid) |
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108 | status = NF90_PUT_ATT(ncid,levid,"long_name","hybrid level at midpoints (1000*(A+B))") |
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109 | status = NF90_PUT_ATT(ncid,levid,"units","Pa") |
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110 | status = NF90_PUT_ATT(ncid,levid,"positive","up") |
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111 | status = NF90_PUT_ATT(ncid,levid,"standard_name","atmosphere_hybrid_sigma_pressure_coordinate") |
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112 | status = NF90_PUT_ATT(ncid,levid,"formula_terms","a: hyam b: hybm p0: P0 ps: PS") |
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113 | |
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114 | status = NF90_DEF_VAR(ncid,'ilev',NF90_DOUBLE,(/ ilev /),ilevid) |
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115 | status = NF90_PUT_ATT(ncid,ilevid,"long_name","hybrid level at interfaces (1000*(A+B))") |
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116 | status = NF90_PUT_ATT(ncid,ilevid,"units","Pa") |
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117 | status = NF90_PUT_ATT(ncid,ilevid,"positive","up") |
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118 | status = NF90_PUT_ATT(ncid,ilevid,"standard_name","atmosphere_hybrid_sigma_pressure_coordinate") |
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119 | status = NF90_PUT_ATT(ncid,ilevid,"formula_terms","a: hyai b: hybi p0: P0 ps: PS") |
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120 | |
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121 | status = NF90_DEF_VAR(ncid,'hyai',NF90_DOUBLE,(/ ilev /),hyaiid) |
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122 | status = NF90_PUT_ATT(ncid,hyaiid,"long_name","hybrid A coefficient at layer interfaces") |
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123 | |
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124 | status = NF90_DEF_VAR(ncid,'hybi',NF90_DOUBLE,(/ ilev /),hybiid) |
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125 | status = NF90_PUT_ATT(ncid,hybiid,"long_name","hybrid B coefficient at layer interfaces") |
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126 | |
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127 | status = NF90_DEF_VAR(ncid,'hyam',NF90_DOUBLE,(/ lev /),hyamid) |
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128 | status = NF90_PUT_ATT(ncid,hyamid,"long_name","hybrid A coefficient at midpoint interfaces") |
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129 | |
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130 | status = NF90_DEF_VAR(ncid,'hybm',NF90_DOUBLE,(/ lev /),hybmid) |
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131 | status = NF90_PUT_ATT(ncid,hybmid,"long_name","hybrid B coefficient at midpoint interfaces") |
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132 | |
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133 | status = NF90_DEF_VAR(ncid,'P0',NF90_DOUBLE,varid=P0id) |
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134 | |
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135 | status = NF90_ENDDEF(ncid) |
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136 | |
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137 | status=NF90_PUT_VAR(ncid,ilevid, ap(:)+bp(:)*Preff) |
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138 | |
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139 | DO l=1,llm |
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140 | val(l)= 0.5*(ap(l+1)+ap(l)+Preff*(bp(l)+bp(l+1))) |
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141 | ENDDO |
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142 | |
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143 | status=NF90_PUT_VAR(ncid,levid, val) |
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144 | |
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145 | status=NF90_PUT_VAR(ncid,hyaiid, ap(:)/Preff) |
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146 | status=NF90_PUT_VAR(ncid,hybiid, bp(:)) |
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147 | |
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148 | DO l=1,llm |
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149 | val(l)= 0.5*(ap(l+1)+ap(l)) |
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150 | ENDDO |
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151 | status=NF90_PUT_VAR(ncid,hyamid, val(:)/Preff) |
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152 | |
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153 | DO l=1,llm |
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154 | val(l)= 0.5*(bp(l+1)+bp(l)) |
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155 | ENDDO |
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156 | status=NF90_PUT_VAR(ncid,hybmid, val(:)) |
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157 | |
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158 | status=NF90_PUT_VAR(ncid,P0id, Preff) |
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159 | |
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160 | status=NF90_CLOSE(ncid) |
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161 | END SUBROUTINE write_apbp |
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162 | |
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163 | END MODULE disvert_mod |
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