1 | MODULE daymod |
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2 | !!====================================================================== |
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3 | !! *** MODULE daymod *** |
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4 | !! Ocean : calendar |
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5 | !!===================================================================== |
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6 | !! History : ! 94-09 (M. Pontaud M. Imbard) Original code |
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7 | !! ! 97-03 (O. Marti) |
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8 | !! ! 97-05 (G. Madec) |
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9 | !! ! 97-08 (M. Imbard) |
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10 | !! 9.0 ! 03-09 (G. Madec) F90 + nyear, nmonth, nday |
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11 | !! ! 04-01 (A.M. Treguier) new calculation based on adatrj |
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12 | !! ! 06-08 (G. Madec) surface module major update |
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13 | !!---------------------------------------------------------------------- |
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14 | |
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15 | !!---------------------------------------------------------------------- |
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16 | !! day : calendar |
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17 | !!---------------------------------------------------------------------- |
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18 | USE dom_oce ! ocean space and time domain |
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19 | USE phycst ! physical constants |
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20 | USE in_out_manager ! I/O manager |
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21 | USE prtctl ! Print control |
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22 | |
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23 | IMPLICIT NONE |
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24 | PRIVATE |
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25 | |
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26 | PUBLIC day ! called by step.F90 |
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27 | |
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28 | INTEGER , PUBLIC :: nyear !: current year |
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29 | INTEGER , PUBLIC :: nmonth !: current month |
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30 | INTEGER , PUBLIC :: nday !: current day of the month |
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31 | INTEGER , PUBLIC :: nday_year !: current day counted from jan 1st of the current year |
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32 | REAL(wp), PUBLIC :: rsec_year !: current time step counted in second since 00h jan 1st of the current year |
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33 | REAL(wp), PUBLIC :: rsec_month !: current time step counted in second since 00h 1st day of the current month |
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34 | REAL(wp), PUBLIC :: rsec_day !: current time step counted in second since 00h of the current day |
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35 | INTEGER , PUBLIC :: ndastp !: time step date in year/month/day aammjj |
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36 | |
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37 | !!gm supprimer adatrj et adatrj0 ==> remplacer par rsecday..... |
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38 | REAL(wp), PUBLIC :: adatrj !: number of elapsed days since the begining of the run |
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39 | REAL(wp), PUBLIC :: adatrj0 !: value of adatrj at nit000-1 (before the present run). |
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40 | ! ! it is the accumulated duration of previous runs |
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41 | ! ! that may have been run with different time steps. |
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42 | INTEGER , PUBLIC, DIMENSION(0:13) :: nmonth_len !: length of the current year |
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43 | |
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44 | INTEGER, PUBLIC, DIMENSION(12) :: nbiss = (/ 31, 29, 31, 30, 31, 30, & !: number of days per month |
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45 | & 31, 31, 30, 31, 30, 31 /) !: (leap-year) |
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46 | INTEGER, PUBLIC, DIMENSION(12) :: nobis = (/ 31, 28, 31, 30, 31, 30, & !: number of days per month |
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47 | & 31, 31, 30, 31, 30, 31 /) !: (365 days a year) |
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48 | |
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49 | REAL(wp), PUBLIC, DIMENSION(0:14) :: rmonth_half(0:14) |
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50 | |
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51 | !!---------------------------------------------------------------------- |
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52 | !! OPA 9.0 , LOCEAN-IPSL (2006) |
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53 | !! $Id$ |
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54 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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55 | !!---------------------------------------------------------------------- |
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56 | |
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57 | CONTAINS |
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58 | |
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59 | SUBROUTINE day( kt ) |
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60 | !!---------------------------------------------------------------------- |
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61 | !! *** ROUTINE day *** |
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62 | !! |
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63 | !! ** Purpose : Compute the date with a day iteration IF necessary. |
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64 | !! |
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65 | !! ** Method : - ??? |
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66 | !! |
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67 | !! ** Action : - nyear : current year |
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68 | !! - nmonth : current month of the year nyear |
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69 | !! - nday : current day of the month nmonth |
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70 | !! - nday_year : current day of the year nyear |
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71 | !! - ndastp : =nyear*10000+nmonth*100+nday |
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72 | !! - adatrj : date in days since the beginning of the run |
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73 | !! - rsec_year : current time of the year (in second since 00h, jan 1st) |
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74 | !!---------------------------------------------------------------------- |
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75 | INTEGER, INTENT(in) :: kt ! ocean time-step indices |
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76 | ! |
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77 | INTEGER :: js, jm ! dummy loop indice |
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78 | CHARACTER (len=25) :: charout |
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79 | !!---------------------------------------------------------------------- |
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80 | |
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81 | ! 0. initialization of adatrj0 and nday, nmonth,nyear, nday_year. |
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82 | ! ndastp has been initialized in domain.F90 or restart.F90 |
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83 | !----------------------------------------------------------------- |
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84 | |
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85 | ! ! ---------------- ! |
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86 | IF( kt == -1 ) THEN ! Initialisation ! |
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87 | ! ! ---------------- ! |
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88 | ! |
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89 | IF( .NOT.ln_rstart ) adatrj0 = 0.e0 ! adatrj0 initialized in rst_read when restart |
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90 | |
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91 | ! set the calandar from adatrj0 and ndastp (read in restart file and namelist) |
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92 | adatrj = adatrj0 !???? bug.... toujours rest !!gm |
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93 | nyear = ndastp / 10000 |
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94 | nmonth = ( ndastp - (nyear * 10000) ) / 100 |
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95 | nday = ndastp - (nyear * 10000) - ( nmonth * 100 ) |
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96 | |
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97 | ! length of the month of the current year (from nleapy, read in namelist) |
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98 | nmonth_len(0) = nbiss(12) ; nmonth_len(13) = nbiss(1) |
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99 | SELECT CASE( nleapy ) |
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100 | CASE( 1 ) |
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101 | IF( MOD( nyear, 4 ) == 0 ) THEN |
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102 | ; nmonth_len(1:12) = nbiss(:) ! 366 days per year (leap year) |
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103 | ELSE |
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104 | ; nmonth_len(1:12) = nobis(:) ! 365 days per year |
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105 | ENDIF |
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106 | CASE( 0 ) ; nmonth_len(1:12) = nobis(:) ! 365 days per year |
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107 | CASE( 2: ) ; nmonth_len(1:13) = nleapy ! 12*nleapy days per year |
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108 | END SELECT |
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109 | |
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110 | ! half month in second since the bigining of the year |
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111 | rmonth_half(0) = - 0.5 * rday * REAL( nmonth_len( 0 ) ) |
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112 | DO jm = 1, 12 |
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113 | rmonth_half(jm) = rmonth_half(jm-1) + 0.5 * rday * REAL( nmonth_len(jm-1) + nmonth_len(jm) ) |
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114 | END DO |
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115 | rmonth_half(13) = rmonth_half( 1 ) + 365. * rday |
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116 | rmonth_half(14) = rmonth_half( 2 ) + 365. * rday |
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117 | |
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118 | ! day since january 1st (useful to read daily forcing fields) |
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119 | nday_year = nday |
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120 | DO js = 1, nmonth - 1 ! accumulates days of previous months of this year |
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121 | nday_year = nday_year + nmonth_len(js) |
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122 | END DO |
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123 | |
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124 | ! number of seconds since... |
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125 | IF( ln_rstart ) THEN |
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126 | rsec_year = REAL( nday_year ) * rday - rdttra(1) ! 00h 1st day of the current year |
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127 | rsec_month = REAL( nday ) * rday - rdttra(1) ! 00h 1st day of the current month |
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128 | rsec_day = REAL( nday ) * rday - rdttra(1) ! 00h of the current day |
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129 | ELSE |
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130 | rsec_year = REAL( nday_year - 1 ) * rday - rdttra(1) ! 00h 1st day of the current year |
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131 | rsec_month = REAL( nday - 1 ) * rday - rdttra(1) ! 00h 1st day of the current month |
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132 | rsec_day = - rdttra(1) ! 00h of the current day |
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133 | ENDIF |
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134 | |
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135 | ! control print |
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136 | IF(lwp) WRITE(numout,*)' ==============>> time-step =', kt, ' Initial DATE Y/M/D = ', & |
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137 | & nyear, '/', nmonth, '/', nday, ' rsec_day:', rsec_day |
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138 | |
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139 | ! ! -------------------------------- ! |
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140 | ELSE ! Model calendar at time-step kt ! |
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141 | ! ! -------------------------------- ! |
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142 | |
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143 | rsec_year = rsec_year + rdttra(1) ! New time-step |
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144 | rsec_month = rsec_month + rdttra(1) ! New time-step |
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145 | rsec_day = rsec_day + rdttra(1) ! New time-step |
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146 | |
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147 | adatrj = adatrj0 + ( kt - nit000 + 1 ) * rdttra(1) / rday |
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148 | |
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149 | IF( rsec_day >= rday ) THEN |
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150 | ! |
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151 | rsec_day = 0.e0 ! NEW day |
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152 | nday = nday + 1 |
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153 | nday_year = nday_year + 1 |
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154 | ! |
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155 | IF( nday == nmonth_len(nmonth) + 1 ) THEN ! NEW month |
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156 | nday = 1 |
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157 | rsec_month = 0.e0 |
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158 | nmonth = nmonth + 1 |
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159 | IF( nmonth == 13 ) THEN ! NEW year |
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160 | nyear = nyear + 1 |
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161 | nmonth = 1 |
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162 | nday_year = 1 |
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163 | rsec_year = 0.e0 |
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164 | ! ! update the length of the month |
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165 | IF( nleapy == 1 ) THEN ! of the current year (if necessary) |
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166 | IF( MOD( nyear, 4 ) == 0 ) THEN |
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167 | nmonth_len(1:12) = nbiss(:) ! 366 days per year (leap year) |
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168 | ELSE |
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169 | nmonth_len(1:12) = nobis(:) ! 365 days per year |
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170 | ENDIF |
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171 | ! half month in second since the bigining of the year |
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172 | rmonth_half(0) = - 0.5 * rday * REAL( nmonth_len( 0 ) ) |
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173 | DO jm = 1, 12 |
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174 | rmonth_half(jm) = rmonth_half(jm-1) + 0.5 * rday * REAL( nmonth_len(jm-1) + nmonth_len(jm) ) |
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175 | END DO |
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176 | rmonth_half(13) = rmonth_half( 1 ) + 365. * rday |
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177 | rmonth_half(14) = rmonth_half( 2 ) + 365. * rday |
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178 | ENDIF |
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179 | ENDIF |
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180 | ENDIF |
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181 | |
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182 | ! |
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183 | ndastp = nyear * 10000 + nmonth * 100 + nday ! NEW date |
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184 | ! |
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185 | IF(lwp) WRITE(numout,'(a,i8,a,i4,a,i2,a,i2,a,i3)') '======>> time-step =', kt, & |
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186 | & ' New day, DATE Y/M/D = ', nyear, '/', nmonth, '/', nday, ' nday_year = ', nday_year |
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187 | IF(lwp) WRITE(numout,'(a,F9.0,a,F9.0,a,F9.0)') ' rsec_year = ', rsec_year, & |
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188 | & ' rsec_month = ', rsec_month, ' rsec_day = ', rsec_day |
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189 | ENDIF |
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190 | |
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191 | IF(ln_ctl) THEN |
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192 | WRITE(charout,FMT="('kt =', I4,' d/m/y =',I2,I2,I4)") kt, nday, nmonth, nyear |
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193 | CALL prt_ctl_info(charout) |
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194 | ENDIF |
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195 | ! |
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196 | ENDIF |
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197 | |
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198 | END SUBROUTINE day |
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199 | |
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200 | !!====================================================================== |
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201 | END MODULE daymod |
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