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 | |
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8 | REAL(rstd) :: ptop ! pressure at top of atmosphere l=llm+1 |
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9 | ! vertical coordinate : Lagrangian or mass-based |
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10 | INTEGER, SAVE :: caldyn_eta |
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11 | INTEGER, PARAMETER :: eta_mass=1, eta_lag=2 |
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12 | |
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13 | CONTAINS |
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14 | |
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15 | SUBROUTINE init_disvert |
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16 | USE disvert_std_mod, ONLY: ap_std=>ap, bp_std=>bp, presnivs_std=>presnivs, init_disvert_std=>init_disvert |
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17 | USE disvert_ncar_mod, ONLY: ap_ncar=>ap, bp_ncar=>bp, presnivs_ncar=>presnivs, init_disvert_ncar=>init_disvert |
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18 | USE disvert_ncarl30_mod, ONLY: ap_ncarl30=>ap, bp_ncarl30=>bp, presnivs_ncarl30=>presnivs, init_disvert_ncarl30=>init_disvert |
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19 | USE disvert_dcmip31_mod, ONLY: ap_dcmip31=>ap, bp_dcmip31=>bp, presnivs_dcmip31=>presnivs, init_disvert_dcmip31=>init_disvert |
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20 | USE disvert_dcmip200_mod, ONLY: ap_dcmip200=>ap, bp_dcmip200=>bp, presnivs_dcmip200=>presnivs, init_disvert_dcmip200=>init_disvert |
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21 | USE icosa |
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22 | USE mpipara |
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23 | IMPLICIT NONE |
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24 | CHARACTER(LEN=255) :: disvert_type = 'std' |
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25 | INTEGER :: l |
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26 | |
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27 | CALL getin("disvert",disvert_type) |
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28 | |
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29 | SELECT CASE (TRIM(disvert_type)) |
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30 | CASE('std') |
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31 | |
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32 | CALL init_disvert_std |
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33 | ap=>ap_std |
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34 | bp=>bp_std |
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35 | presnivs=>presnivs_std |
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36 | |
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37 | CASE ('ncar') |
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38 | |
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39 | CALL init_disvert_ncar |
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40 | ap=>ap_ncar |
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41 | bp=>bp_ncar |
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42 | presnivs=>presnivs_ncar |
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43 | |
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44 | CASE ('dcmip31') |
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45 | |
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46 | CALL init_disvert_dcmip31 |
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47 | ap=>ap_dcmip31 |
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48 | bp=>bp_dcmip31 |
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49 | presnivs=>presnivs_dcmip31 |
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50 | |
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51 | CASE ('dcmip200') |
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52 | |
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53 | CALL init_disvert_dcmip200 |
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54 | ap=>ap_dcmip200 |
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55 | bp=>bp_dcmip200 |
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56 | presnivs=>presnivs_dcmip200 |
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57 | |
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58 | CASE ('ncarl30') |
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59 | |
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60 | CALL init_disvert_ncarl30 |
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61 | ap=>ap_ncarl30 |
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62 | bp=>bp_ncarl30 |
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63 | presnivs=>presnivs_ncarl30 |
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64 | |
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65 | CASE default |
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66 | IF (is_mpi_root) PRINT*,'Bad selector for variable disvert : <', TRIM(disvert_type),"> options are <std>, <ncar>, <ncarl30>" |
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67 | STOP |
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68 | |
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69 | END SELECT |
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70 | |
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71 | ! Convert from pressure coordinate to mass coordinate |
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72 | ! pk = ap(k) + bp(k)*ps(ij) = ptop + g*( mass_ak(k) + mass_bk(k)*ms(ij) ) |
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73 | ptop = ap(llm+1) |
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74 | ALLOCATE(mass_al(llm+1)) |
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75 | ALLOCATE(mass_bl(llm+1)) |
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76 | ALLOCATE(mass_ak(llm)) |
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77 | ALLOCATE(mass_bk(llm)) |
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78 | ALLOCATE(mass_dak(llm)) |
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79 | ALLOCATE(mass_dbk(llm)) |
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80 | |
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81 | ! FIXME : leave ps for the moment ; change ps to ms later |
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82 | DO l=1,llm+1 |
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83 | ! mass_al(l) = (ap(l)-ptop)/g |
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84 | ! mass_bl(l) = bp(l)/g |
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85 | mass_al(l) = (ap(l)-ptop) |
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86 | mass_bl(l) = bp(l) |
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87 | END DO |
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88 | DO l=1,llm |
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89 | mass_ak(l) = .5*(mass_al(l)+mass_al(l+1)) |
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90 | mass_bk(l) = .5*(mass_bl(l)+mass_bl(l+1)) |
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91 | mass_dak(l) = mass_al(l)-mass_al(l+1) ! >0 |
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92 | mass_dbk(l) = mass_bl(l)-mass_bl(l+1) ! >0 |
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93 | END DO |
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94 | |
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95 | END SUBROUTINE init_disvert |
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96 | |
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97 | SUBROUTINE compute_rhodz(comp, ps, rhodz) |
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98 | USE icosa |
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99 | USE omp_para |
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100 | LOGICAL, INTENT(IN) :: comp ! .TRUE. to compute, .FALSE. to check |
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101 | REAL(rstd), INTENT(IN) :: ps(iim*jjm) |
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102 | REAL(rstd), INTENT(INOUT) :: rhodz(iim*jjm,llm) |
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103 | REAL(rstd) :: m, err |
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104 | INTEGER :: l,i,j,ij,dd |
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105 | err=0. |
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106 | |
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107 | dd=0 |
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108 | |
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109 | DO l = ll_begin, ll_end |
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110 | DO j=jj_begin-dd,jj_end+dd |
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111 | DO i=ii_begin-dd,ii_end+dd |
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112 | ij=(j-1)*iim+i |
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113 | m = ( ap(l) - ap(l+1) + (bp(l)-bp(l+1))*ps(ij) )/g |
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114 | IF(comp) THEN |
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115 | rhodz(ij,l) = m |
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116 | ELSE |
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117 | err = MAX(err,abs(m-rhodz(ij,l))) |
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118 | END IF |
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119 | ENDDO |
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120 | ENDDO |
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121 | ENDDO |
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122 | |
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123 | IF(.NOT. comp) THEN |
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124 | IF(err>1e-10) THEN |
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125 | PRINT *, 'Discrepancy between ps and rhodz detected', err |
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126 | STOP |
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127 | ELSE |
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128 | ! PRINT *, 'No discrepancy between ps and rhodz detected' |
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129 | END IF |
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130 | END IF |
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131 | |
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132 | END SUBROUTINE compute_rhodz |
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133 | |
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134 | |
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135 | SUBROUTINE write_apbp |
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136 | USE icosa |
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137 | USE netcdf_mod |
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138 | IMPLICIT NONE |
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139 | REAL(rstd) :: val(llm) |
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140 | INTEGER :: status |
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141 | INTEGER :: lev,ilev |
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142 | INTEGER :: ncid,levid,ilevid,hyaiid,hybiid,hyamid,hybmid,P0id |
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143 | INTEGER :: l |
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144 | |
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145 | status = NF90_CREATE('apbp.nc', NF90_CLOBBER, ncid) |
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146 | status = NF90_DEF_DIM(ncid,'lev',llm,lev) |
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147 | status = NF90_DEF_DIM(ncid,'ilev',llm+1,ilev) |
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148 | |
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149 | status = NF90_DEF_VAR(ncid,'lev',NF90_DOUBLE,(/ lev /),levid) |
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150 | status = NF90_PUT_ATT(ncid,levid,"long_name","hybrid level at midpoints (1000*(A+B))") |
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151 | status = NF90_PUT_ATT(ncid,levid,"units","Pa") |
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152 | status = NF90_PUT_ATT(ncid,levid,"positive","up") |
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153 | status = NF90_PUT_ATT(ncid,levid,"standard_name","atmosphere_hybrid_sigma_pressure_coordinate") |
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154 | status = NF90_PUT_ATT(ncid,levid,"formula_terms","a: hyam b: hybm p0: P0 ps: PS") |
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155 | |
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156 | status = NF90_DEF_VAR(ncid,'ilev',NF90_DOUBLE,(/ ilev /),ilevid) |
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157 | status = NF90_PUT_ATT(ncid,ilevid,"long_name","hybrid level at interfaces (1000*(A+B))") |
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158 | status = NF90_PUT_ATT(ncid,ilevid,"units","Pa") |
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159 | status = NF90_PUT_ATT(ncid,ilevid,"positive","up") |
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160 | status = NF90_PUT_ATT(ncid,ilevid,"standard_name","atmosphere_hybrid_sigma_pressure_coordinate") |
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161 | status = NF90_PUT_ATT(ncid,ilevid,"formula_terms","a: hyai b: hybi p0: P0 ps: PS") |
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162 | |
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163 | status = NF90_DEF_VAR(ncid,'hyai',NF90_DOUBLE,(/ ilev /),hyaiid) |
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164 | status = NF90_PUT_ATT(ncid,hyaiid,"long_name","hybrid A coefficient at layer interfaces") |
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165 | |
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166 | status = NF90_DEF_VAR(ncid,'hybi',NF90_DOUBLE,(/ ilev /),hybiid) |
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167 | status = NF90_PUT_ATT(ncid,hybiid,"long_name","hybrid B coefficient at layer interfaces") |
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168 | |
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169 | status = NF90_DEF_VAR(ncid,'hyam',NF90_DOUBLE,(/ lev /),hyamid) |
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170 | status = NF90_PUT_ATT(ncid,hyamid,"long_name","hybrid A coefficient at midpoint interfaces") |
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171 | |
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172 | status = NF90_DEF_VAR(ncid,'hybm',NF90_DOUBLE,(/ lev /),hybmid) |
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173 | status = NF90_PUT_ATT(ncid,hybmid,"long_name","hybrid B coefficient at midpoint interfaces") |
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174 | |
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175 | status = NF90_DEF_VAR(ncid,'P0',NF90_DOUBLE,varid=P0id) |
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176 | |
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177 | status = NF90_ENDDEF(ncid) |
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178 | |
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179 | status=NF90_PUT_VAR(ncid,ilevid, ap(:)+bp(:)*Preff) |
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180 | |
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181 | DO l=1,llm |
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182 | val(l)= 0.5*(ap(l+1)+ap(l)+Preff*(bp(l)+bp(l+1))) |
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183 | ENDDO |
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184 | |
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185 | status=NF90_PUT_VAR(ncid,levid, val) |
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186 | |
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187 | status=NF90_PUT_VAR(ncid,hyaiid, ap(:)/Preff) |
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188 | status=NF90_PUT_VAR(ncid,hybiid, bp(:)) |
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189 | |
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190 | DO l=1,llm |
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191 | val(l)= 0.5*(ap(l+1)+ap(l)) |
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192 | ENDDO |
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193 | status=NF90_PUT_VAR(ncid,hyamid, val(:)/Preff) |
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194 | |
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195 | DO l=1,llm |
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196 | val(l)= 0.5*(bp(l+1)+bp(l)) |
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197 | ENDDO |
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198 | status=NF90_PUT_VAR(ncid,hybmid, val(:)) |
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199 | |
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200 | status=NF90_PUT_VAR(ncid,P0id, Preff) |
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201 | |
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202 | status=NF90_CLOSE(ncid) |
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203 | END SUBROUTINE write_apbp |
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204 | |
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205 | END MODULE disvert_mod |
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