1 | ! |
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2 | ! $Id: limit_read_mod.F90 5084 2024-07-19 16:40:44Z lebasn $ |
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3 | ! |
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4 | MODULE limit_read_mod |
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5 | ! |
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6 | ! This module reads the fichier "limit.nc" containing fields for surface forcing. |
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7 | ! |
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8 | ! Module subroutines : |
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9 | ! limit_read_frac : call limit_read_tot and return the fractions |
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10 | ! limit_read_rug_alb : return rugosity and albedo, if coupled ocean call limit_read_tot first |
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11 | ! limit_read_sst : return sea ice temperature |
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12 | ! limit_read_tot : read limit.nc and store the fields in local modules variables |
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13 | ! |
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14 | IMPLICIT NONE |
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15 | |
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16 | REAL, ALLOCATABLE, DIMENSION(:,:), SAVE, PRIVATE :: pctsrf |
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17 | !$OMP THREADPRIVATE(pctsrf) |
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18 | REAL, ALLOCATABLE, DIMENSION(:), SAVE, PRIVATE :: rugos |
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19 | !$OMP THREADPRIVATE(rugos) |
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20 | REAL, ALLOCATABLE, DIMENSION(:), SAVE, PRIVATE :: albedo |
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21 | !$OMP THREADPRIVATE(albedo) |
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22 | REAL, ALLOCATABLE, DIMENSION(:), SAVE, PRIVATE :: sst |
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23 | !$OMP THREADPRIVATE(sst) |
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24 | LOGICAL,SAVE :: read_continents=.FALSE. |
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25 | !$OMP THREADPRIVATE(read_continents) |
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26 | |
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27 | CONTAINS |
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28 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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29 | !! |
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30 | !! Public subroutines : |
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31 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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32 | |
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33 | |
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34 | SUBROUTINE init_limit_read(first_day) |
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35 | USE mod_grid_phy_lmdz |
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36 | USE surface_data |
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37 | USE mod_phys_lmdz_para |
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38 | USE lmdz_xios |
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39 | |
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40 | IMPLICIT NONE |
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41 | INTEGER, INTENT(IN) :: first_day |
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42 | |
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43 | |
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44 | IF ( type_ocean /= 'couple') THEN |
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45 | IF (grid_type==unstructured) THEN |
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46 | IF (is_omp_master) CALL xios_set_file_attr("limit_read",enabled=.TRUE.,record_offset=first_day) |
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47 | ENDIF |
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48 | ENDIF |
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49 | |
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50 | END SUBROUTINE init_limit_read |
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51 | |
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52 | SUBROUTINE limit_read_frac(itime, dtime, jour, pctsrf_new, is_modified) |
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53 | ! |
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54 | ! This subroutine is called from "change_srf_frac" for case of |
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55 | ! ocean=force or from ocean_slab_frac for ocean=slab. |
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56 | ! The fraction for all sub-surfaces at actual time step is returned. |
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57 | |
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58 | USE dimphy |
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59 | USE indice_sol_mod |
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60 | |
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61 | ! Input arguments |
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62 | !**************************************************************************************** |
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63 | INTEGER, INTENT(IN) :: itime ! time step |
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64 | INTEGER, INTENT(IN) :: jour ! current day |
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65 | REAL , INTENT(IN) :: dtime ! length of time step |
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66 | |
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67 | ! Output arguments |
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68 | !**************************************************************************************** |
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69 | REAL, DIMENSION(klon,nbsrf), INTENT(OUT) :: pctsrf_new ! sub surface fractions |
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70 | LOGICAL, INTENT(OUT) :: is_modified ! true if pctsrf is modified at this time step |
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71 | |
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72 | ! End declaration |
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73 | !**************************************************************************************** |
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74 | |
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75 | ! 1) Read file limit.nc |
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76 | CALL limit_read_tot(itime, dtime, jour, is_modified) |
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77 | |
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78 | ! 2) Return the fraction read in limit_read_tot |
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79 | pctsrf_new(:,:) = pctsrf(:,:) |
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80 | |
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81 | END SUBROUTINE limit_read_frac |
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82 | |
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83 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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84 | |
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85 | SUBROUTINE limit_read_rug_alb(itime, dtime, jour, & |
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86 | knon, knindex, & |
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87 | rugos_out, alb_out) |
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88 | ! |
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89 | ! This subroutine is called from surf_land_bucket. |
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90 | ! The flag "ok_veget" must can not be true. If coupled run, "ocean=couple" |
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91 | ! then this routine will call limit_read_tot. |
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92 | ! |
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93 | USE dimphy |
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94 | USE surface_data |
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95 | |
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96 | ! Input arguments |
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97 | !**************************************************************************************** |
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98 | INTEGER, INTENT(IN) :: itime ! numero du pas de temps courant |
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99 | INTEGER, INTENT(IN) :: jour ! jour a lire dans l'annee |
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100 | REAL , INTENT(IN) :: dtime ! pas de temps de la physique (en s) |
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101 | INTEGER, INTENT(IN) :: knon ! nomber of points on compressed grid |
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102 | INTEGER, DIMENSION(klon), INTENT(IN) :: knindex ! grid point number for compressed grid |
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103 | ! Output arguments |
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104 | !**************************************************************************************** |
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105 | REAL, DIMENSION(klon), INTENT(OUT) :: rugos_out |
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106 | REAL, DIMENSION(klon), INTENT(OUT) :: alb_out |
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107 | |
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108 | ! Local variables |
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109 | !**************************************************************************************** |
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110 | INTEGER :: i |
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111 | LOGICAL :: is_modified |
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112 | !**************************************************************************************** |
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113 | |
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114 | IF (type_ocean == 'couple'.OR. & |
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115 | (type_ocean == 'slab' .AND. version_ocean == 'sicINT')) THEN |
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116 | ! limit.nc has not yet been read. Do it now! |
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117 | CALL limit_read_tot(itime, dtime, jour, is_modified) |
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118 | END IF |
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119 | |
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120 | DO i=1,knon |
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121 | rugos_out(i) = rugos(knindex(i)) |
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122 | alb_out(i) = albedo(knindex(i)) |
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123 | END DO |
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124 | |
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125 | END SUBROUTINE limit_read_rug_alb |
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126 | |
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127 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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128 | |
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129 | SUBROUTINE limit_read_sst(knon, knindex, sst_out) |
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130 | ! |
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131 | ! This subroutine returns the sea surface temperature already read from limit.nc. |
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132 | ! |
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133 | USE dimphy, ONLY : klon |
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134 | |
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135 | INTEGER, INTENT(IN) :: knon ! nomber of points on compressed grid |
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136 | INTEGER, DIMENSION(klon), INTENT(IN) :: knindex ! grid point number for compressed grid |
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137 | REAL, DIMENSION(klon), INTENT(OUT) :: sst_out |
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138 | |
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139 | INTEGER :: i |
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140 | |
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141 | DO i = 1, knon |
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142 | sst_out(i) = sst(knindex(i)) |
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143 | END DO |
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144 | |
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145 | END SUBROUTINE limit_read_sst |
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146 | |
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147 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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148 | !! |
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149 | !! Private subroutine : |
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150 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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151 | |
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152 | SUBROUTINE limit_read_tot(itime, dtime, jour, is_modified) |
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153 | ! |
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154 | ! Read everything needed from limit.nc |
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155 | ! |
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156 | ! 0) Initialize |
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157 | ! 1) Open the file limit.nc, if it is time |
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158 | ! 2) Read fraction, if not type_ocean=couple |
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159 | ! 3) Read sea surface temperature, if not type_ocean=couple |
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160 | ! 4) Read albedo and rugosity for land surface, only in case of no vegetation model |
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161 | ! 5) Close file and distribuate variables to all processus |
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162 | |
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163 | USE dimphy |
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164 | USE mod_grid_phy_lmdz |
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165 | USE mod_phys_lmdz_para |
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166 | USE surface_data, ONLY : type_ocean, ok_veget |
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167 | USE netcdf |
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168 | USE indice_sol_mod |
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169 | USE phys_cal_mod, ONLY : calend, year_len |
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170 | USE print_control_mod, ONLY: lunout, prt_level |
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171 | USE lmdz_xios, ONLY: xios_recv_field, using_xios |
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172 | |
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173 | IMPLICIT NONE |
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174 | |
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175 | ! In- and ouput arguments |
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176 | !**************************************************************************************** |
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177 | INTEGER, INTENT(IN) :: itime ! numero du pas de temps courant |
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178 | INTEGER, INTENT(IN) :: jour ! jour a lire dans l'annee |
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179 | REAL , INTENT(IN) :: dtime ! pas de temps de la physique (en s) |
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180 | |
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181 | LOGICAL, INTENT(OUT) :: is_modified ! true if pctsrf is modified at this time step |
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182 | |
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183 | ! Locals variables with attribute SAVE |
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184 | !**************************************************************************************** |
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185 | ! frequence de lecture des conditions limites (en pas de physique) |
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186 | INTEGER,SAVE :: lmt_pas |
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187 | !$OMP THREADPRIVATE(lmt_pas) |
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188 | LOGICAL, SAVE :: first_call=.TRUE. |
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189 | !$OMP THREADPRIVATE(first_call) |
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190 | INTEGER, SAVE :: jour_lu = -1 |
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191 | !$OMP THREADPRIVATE(jour_lu) |
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192 | ! Locals variables |
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193 | !**************************************************************************************** |
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194 | INTEGER :: nid, nvarid, ndimid, nn |
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195 | INTEGER :: ii, ierr |
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196 | INTEGER, DIMENSION(2) :: start, epais |
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197 | REAL, DIMENSION(klon_glo,nbsrf) :: pct_glo ! fraction at global grid |
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198 | REAL, DIMENSION(klon_glo) :: sst_glo ! sea-surface temperature at global grid |
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199 | REAL, DIMENSION(klon_glo) :: rug_glo ! rugosity at global grid |
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200 | REAL, DIMENSION(klon_glo) :: alb_glo ! albedo at global grid |
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201 | |
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202 | REAL, DIMENSION(klon_mpi,nbsrf) :: pct_mpi ! fraction at global grid |
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203 | REAL, DIMENSION(klon_mpi) :: sst_mpi ! sea-surface temperature at global grid |
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204 | REAL, DIMENSION(klon_mpi) :: rug_mpi ! rugosity at global grid |
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205 | REAL, DIMENSION(klon_mpi) :: alb_mpi ! albedo at global grid |
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206 | |
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207 | CHARACTER(len=20) :: modname='limit_read_mod' |
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208 | CHARACTER(LEN=99) :: abort_message, calendar, str |
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209 | |
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210 | ! End declaration |
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211 | !**************************************************************************************** |
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212 | |
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213 | !**************************************************************************************** |
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214 | ! 0) Initialization |
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215 | ! |
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216 | !**************************************************************************************** |
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217 | IF (first_call) THEN |
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218 | first_call=.FALSE. |
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219 | ! calculate number of time steps for one day |
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220 | lmt_pas = NINT(86400./dtime * 1.0) |
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221 | |
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222 | ! Allocate module save variables |
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223 | IF ( type_ocean /= 'couple' ) THEN |
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224 | ALLOCATE(pctsrf(klon,nbsrf), sst(klon), stat=ierr) |
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225 | IF (ierr /= 0) CALL abort_physic(modname, 'PB in allocating pctsrf and sst',1) |
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226 | END IF |
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227 | |
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228 | IF ( .NOT. ok_veget ) THEN |
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229 | ALLOCATE(rugos(klon), albedo(klon), stat=ierr) |
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230 | IF (ierr /= 0) CALL abort_physic(modname, 'PB in allocating rugos and albedo',1) |
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231 | END IF |
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232 | |
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233 | !$OMP MASTER ! Only master thread |
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234 | IF (is_mpi_root) THEN ! Only master processus |
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235 | ierr = NF90_OPEN ('limit.nc', NF90_NOWRITE, nid) |
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236 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,& |
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237 | 'Pb d''ouverture du fichier de conditions aux limites',1) |
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238 | |
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239 | !--- WARNING IF CALENDAR IS KNOWN AND DOES NOT MATCH THE ONE OF LMDZ |
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240 | ierr=NF90_INQ_VARID(nid, 'TEMPS', nvarid) |
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241 | ierr=NF90_GET_ATT(nid, nvarid, 'calendar', calendar) |
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242 | IF(ierr==NF90_NOERR.AND.calendar/=calend.AND.prt_level>=1) THEN |
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243 | WRITE(lunout,*)'BEWARE: gcm and limit.nc calendars differ: ' |
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244 | WRITE(lunout,*)' '//TRIM(calend)//' for gcm' |
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245 | WRITE(lunout,*)' '//TRIM(calendar)//' for limit.nc file' |
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246 | END IF |
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247 | |
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248 | !--- ERROR IF FILE RECORDS NUMBER IS NOT EQUAL TO EXPECTED NUMBER OF DAYS |
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249 | IF (grid_type==unstructured) THEN |
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250 | ierr=NF90_INQ_DIMID(nid,"time_year",ndimid) |
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251 | ELSE |
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252 | ierr=NF90_INQUIRE(nid, UnlimitedDimID=ndimid) |
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253 | ENDIF |
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254 | ierr=NF90_INQUIRE_DIMENSION(nid, ndimid, len=nn) |
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255 | WRITE(abort_message,'(a,2(i0,a))')'limit.nc records number (',nn,') does no'//& |
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256 | 't match year length (',year_len,')' |
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257 | IF(nn/=year_len) CALL abort_physic(modname,abort_message,1) |
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258 | |
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259 | !--- ERROR IF FILES AND LMDZ HORIZONTAL RESOLUTIONS DO NOT MATCH |
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260 | IF (grid_type==unstructured) THEN |
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261 | ierr=NF90_INQ_DIMID(nid, 'cell', ndimid) |
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262 | ELSE |
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263 | ierr=NF90_INQ_DIMID(nid, 'points_physiques', ndimid) |
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264 | ENDIF |
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265 | ierr=NF90_INQUIRE_DIMENSION(nid, ndimid, len=nn) |
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266 | WRITE(abort_message,'(a,2(i0,a))')'limit.nc horizontal number of cells (',nn, & |
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267 | ') does not match LMDZ klon_glo (',klon_glo,')' |
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268 | IF(nn/=klon_glo) CALL abort_physic(modname,abort_message,1) |
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269 | |
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270 | ierr = NF90_CLOSE(nid) |
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271 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Pb when closing file', 1) |
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272 | END IF ! is_mpi_root |
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273 | !$OMP END MASTER |
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274 | !$OMP BARRIER |
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275 | END IF |
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276 | |
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277 | !**************************************************************************************** |
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278 | ! 1) Open the file limit.nc if it is the right moment to read, once a day. |
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279 | ! The file is read only by the master thread of the master mpi process(is_mpi_root) |
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280 | ! Check by the way if the number of records is correct. |
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281 | ! |
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282 | !**************************************************************************************** |
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283 | |
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284 | is_modified = .FALSE. |
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285 | !ym IF (MOD(itime-1, lmt_pas) == 0 .OR. jour_lu /= jour ) THEN ! time to read |
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286 | ! not REALLY PERIODIC |
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287 | IF (MOD(itime-1, lmt_pas) == 0 .OR. (jour_lu /= jour .AND. grid_type /= unstructured)) THEN ! time to read |
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288 | ! IF (MOD(itime-1, lmt_pas) == 0) THEN ! time to read |
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289 | jour_lu = jour |
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290 | is_modified = .TRUE. |
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291 | |
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292 | IF (grid_type==unstructured) THEN |
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293 | |
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294 | IF ( type_ocean /= 'couple') THEN |
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295 | |
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296 | IF (is_omp_master) CALL xios_recv_field("foce_limin",pct_mpi(:,is_oce)) |
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297 | IF (is_omp_master) CALL xios_recv_field("fsic_limin",pct_mpi(:,is_sic)) |
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298 | ! IF (read_continents .OR. itime == 1) THEN |
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299 | IF (is_omp_master) CALL xios_recv_field("fter_limin",pct_mpi(:,is_ter)) |
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300 | IF (is_omp_master) CALL xios_recv_field("flic_limin",pct_mpi(:,is_lic)) |
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301 | ! ENDIF |
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302 | ENDIF! type_ocean /= couple |
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303 | |
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304 | IF ( type_ocean /= 'couple') THEN |
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305 | IF (is_omp_master) CALL xios_recv_field("sst_limin",sst_mpi) |
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306 | ENDIF |
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307 | |
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308 | IF (.NOT. ok_veget) THEN |
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309 | IF (is_omp_master) CALL xios_recv_field("alb_limin",alb_mpi) |
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310 | IF (is_omp_master) CALL xios_recv_field("rug_limin",rug_mpi) |
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311 | ENDIF |
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312 | |
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313 | IF ( type_ocean /= 'couple') THEN |
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314 | CALL Scatter_omp(sst_mpi,sst) |
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315 | CALL Scatter_omp(pct_mpi(:,is_oce),pctsrf(:,is_oce)) |
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316 | CALL Scatter_omp(pct_mpi(:,is_sic),pctsrf(:,is_sic)) |
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317 | ! IF (read_continents .OR. itime == 1) THEN |
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318 | CALL Scatter_omp(pct_mpi(:,is_ter),pctsrf(:,is_ter)) |
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319 | CALL Scatter_omp(pct_mpi(:,is_lic),pctsrf(:,is_lic)) |
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320 | ! END IF |
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321 | END IF |
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322 | |
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323 | IF (.NOT. ok_veget) THEN |
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324 | CALL Scatter_omp(alb_mpi, albedo) |
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325 | CALL Scatter_omp(rug_mpi, rugos) |
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326 | END IF |
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327 | |
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328 | ELSE ! grid_type==regular |
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329 | |
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330 | !$OMP MASTER ! Only master thread |
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331 | IF (is_mpi_root) THEN ! Only master processus! |
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332 | |
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333 | ierr = NF90_OPEN ('limit.nc', NF90_NOWRITE, nid) |
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334 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,& |
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335 | 'Pb d''ouverture du fichier de conditions aux limites',1) |
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336 | |
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337 | ! La tranche de donnees a lire: |
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338 | start(1) = 1 |
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339 | start(2) = jour |
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340 | epais(1) = klon_glo |
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341 | epais(2) = 1 |
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342 | |
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343 | |
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344 | !**************************************************************************************** |
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345 | ! 2) Read fraction if not type_ocean=couple |
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346 | ! |
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347 | !**************************************************************************************** |
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348 | |
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349 | IF ( type_ocean /= 'couple') THEN |
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350 | ! |
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351 | ! Ocean fraction |
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352 | ierr = NF90_INQ_VARID(nid, 'FOCE', nvarid) |
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353 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname, 'Le champ <FOCE> est absent',1) |
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354 | |
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355 | ierr = NF90_GET_VAR(nid,nvarid,pct_glo(:,is_oce),start,epais) |
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356 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Lecture echouee pour <FOCE>' ,1) |
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357 | ! |
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358 | ! Sea-ice fraction |
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359 | ierr = NF90_INQ_VARID(nid, 'FSIC', nvarid) |
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360 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Le champ <FSIC> est absent',1) |
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361 | |
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362 | ierr = NF90_GET_VAR(nid,nvarid,pct_glo(:,is_sic),start,epais) |
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363 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Lecture echouee pour <FSIC>' ,1) |
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364 | |
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365 | |
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366 | ! Read land and continentals fraction only if asked for |
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367 | IF (read_continents .OR. itime == 1) THEN |
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368 | ! |
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369 | ! Land fraction |
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370 | ierr = NF90_INQ_VARID(nid, 'FTER', nvarid) |
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371 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Le champ <FTER> est absent',1) |
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372 | |
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373 | ierr = NF90_GET_VAR(nid,nvarid,pct_glo(:,is_ter),start,epais) |
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374 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Lecture echouee pour <FTER>',1) |
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375 | ! |
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376 | ! Continentale ice fraction |
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377 | ierr = NF90_INQ_VARID(nid, 'FLIC', nvarid) |
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378 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Le champ <FLIC> est absent',1) |
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379 | |
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380 | ierr = NF90_GET_VAR(nid,nvarid,pct_glo(:,is_lic),start,epais) |
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381 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Lecture echouee pour <FLIC>',1) |
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382 | END IF |
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383 | |
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384 | END IF ! type_ocean /= couple |
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385 | |
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386 | !**************************************************************************************** |
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387 | ! 3) Read sea-surface temperature, if not coupled ocean |
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388 | ! |
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389 | !**************************************************************************************** |
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390 | IF ( type_ocean /= 'couple') THEN |
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391 | |
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392 | ierr = NF90_INQ_VARID(nid, 'SST', nvarid) |
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393 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Le champ <SST> est absent',1) |
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394 | |
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395 | ierr = NF90_GET_VAR(nid,nvarid,sst_glo,start,epais) |
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396 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Lecture echouee pour <SST>',1) |
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397 | |
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398 | END IF |
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399 | |
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400 | !**************************************************************************************** |
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401 | ! 4) Read albedo and rugosity for land surface, only in case of no vegetation model |
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402 | ! |
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403 | !**************************************************************************************** |
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404 | |
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405 | IF (.NOT. ok_veget) THEN |
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406 | ! |
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407 | ! Read albedo |
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408 | ierr = NF90_INQ_VARID(nid, 'ALB', nvarid) |
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409 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Le champ <ALB> est absent',1) |
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410 | |
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411 | ierr = NF90_GET_VAR(nid,nvarid,alb_glo,start,epais) |
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412 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Lecture echouee pour <ALB>',1) |
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413 | ! |
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414 | ! Read rugosity |
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415 | ierr = NF90_INQ_VARID(nid, 'RUG', nvarid) |
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416 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Le champ <RUG> est absent',1) |
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417 | |
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418 | ierr = NF90_GET_VAR(nid,nvarid,rug_glo,start,epais) |
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419 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Lecture echouee pour <RUG>',1) |
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420 | |
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421 | END IF |
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422 | |
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423 | !**************************************************************************************** |
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424 | ! 5) Close file and distribuate variables to all processus |
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425 | ! |
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426 | !**************************************************************************************** |
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427 | ierr = NF90_CLOSE(nid) |
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428 | IF (ierr /= NF90_NOERR) CALL abort_physic(modname,'Pb when closing file', 1) |
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429 | ENDIF ! is_mpi_root |
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430 | |
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431 | !$OMP END MASTER |
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432 | !$OMP BARRIER |
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433 | |
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434 | IF ( type_ocean /= 'couple') THEN |
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435 | CALL Scatter(sst_glo,sst) |
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436 | CALL Scatter(pct_glo(:,is_oce),pctsrf(:,is_oce)) |
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437 | CALL Scatter(pct_glo(:,is_sic),pctsrf(:,is_sic)) |
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438 | IF (read_continents .OR. itime == 1) THEN |
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439 | CALL Scatter(pct_glo(:,is_ter),pctsrf(:,is_ter)) |
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440 | CALL Scatter(pct_glo(:,is_lic),pctsrf(:,is_lic)) |
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441 | END IF |
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442 | END IF |
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443 | |
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444 | IF (.NOT. ok_veget) THEN |
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445 | CALL Scatter(alb_glo, albedo) |
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446 | CALL Scatter(rug_glo, rugos) |
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447 | END IF |
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448 | |
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449 | ENDIF ! Grid type |
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450 | |
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451 | ENDIF ! time to read |
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452 | |
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453 | END SUBROUTINE limit_read_tot |
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454 | |
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455 | END MODULE limit_read_mod |
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