1 | MODULE trcini_cfc |
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2 | !!====================================================================== |
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3 | !! *** MODULE trcini_cfc *** |
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4 | !! TOP : initialisation of the CFC tracers |
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5 | !!====================================================================== |
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6 | !! History : 2.0 ! 2007-12 (C. Ethe, G. Madec) |
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7 | !!---------------------------------------------------------------------- |
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8 | !!---------------------------------------------------------------------- |
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9 | !! trc_ini_cfc : CFC model initialisation |
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10 | !!---------------------------------------------------------------------- |
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11 | USE oce_trc ! Ocean variables |
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12 | USE par_trc ! TOP parameters |
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13 | USE trc ! TOP variables |
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14 | USE trcsms_cfc ! CFC sms trends |
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15 | |
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16 | IMPLICIT NONE |
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17 | PRIVATE |
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18 | |
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19 | PUBLIC trc_ini_cfc ! called by trcini.F90 module |
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20 | |
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21 | CHARACTER (len=34) :: clname = 'cfc1112.atm' ! ??? |
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22 | |
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23 | INTEGER :: inum ! unit number |
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24 | REAL(wp) :: ylats = -10. ! 10 degrees south |
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25 | REAL(wp) :: ylatn = 10. ! 10 degrees north |
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26 | |
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27 | !!---------------------------------------------------------------------- |
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28 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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29 | !! $Id$ |
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30 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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31 | !!---------------------------------------------------------------------- |
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32 | CONTAINS |
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33 | |
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34 | SUBROUTINE trc_ini_cfc |
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35 | !!---------------------------------------------------------------------- |
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36 | !! *** trc_ini_cfc *** |
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37 | !! |
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38 | !! ** Purpose : initialization for cfc model |
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39 | !! |
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40 | !! ** Method : - Read the namcfc namelist and check the parameter values |
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41 | !!---------------------------------------------------------------------- |
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42 | INTEGER :: ji, jj, jn, jl, jm, js, io, ierr |
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43 | INTEGER :: iskip = 6 ! number of 1st descriptor lines |
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44 | REAL(wp) :: zyy, zyd |
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45 | CHARACTER(len = 20) :: cltra |
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46 | !!---------------------------------------------------------------------- |
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47 | |
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48 | IF(lwp) WRITE(numout,*) |
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49 | IF(lwp) WRITE(numout,*) ' trc_ini_cfc: initialisation of CFC chemical model' |
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50 | IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~' |
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51 | |
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52 | |
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53 | ! assign an index in trc arrays for each CFC prognostic variables |
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54 | jp_cfc = 1 |
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55 | IF( ln_cfc11 .AND. ln_cfc12 ) jp_cfc = 2 |
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56 | |
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57 | ! assign an index in trc arrays for each prognostic variables |
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58 | DO jn = 1, jptra |
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59 | cltra = ctrcnm(jn) |
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60 | IF( cltra == 'CFC11' .OR. cltra == 'cfc11' ) jpc11 = jn |
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61 | IF( cltra == 'CFC12' .OR. cltra == 'cfc12' ) jpc12 = jn |
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62 | ENDDO |
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63 | |
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64 | IF( jp_cfc == 1 ) THEN |
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65 | IF( ln_cfc11 ) jp_cfc0 = jpc11 |
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66 | IF( ln_cfc12 ) jp_cfc0 = jpc12 |
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67 | ELSE |
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68 | jp_cfc0 = MIN( jpc11, jpc12 ) |
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69 | ENDIF |
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70 | jp_cfc1 = jp_cfc0 + jp_cfc - 1 |
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71 | |
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72 | IF( lwp ) THEN |
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73 | WRITE(numout,*) '' |
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74 | WRITE(numout,*) ' First index of CFC tracer in the passive tracer array jp_cfc0 = ', jp_cfc0 |
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75 | WRITE(numout,*) ' Last index of CFC tracer in the passive tracer array jp_cfc1 = ', jp_cfc1 |
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76 | WRITE(numout,*) |
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77 | ENDIF |
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78 | |
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79 | IF(lwp) WRITE(numout,*) 'read of formatted file cfc1112atm' |
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80 | |
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81 | CALL ctl_opn( inum, clname, 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE. ) |
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82 | REWIND(inum) |
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83 | |
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84 | ! compute the number of year in the file |
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85 | ! file starts in 1931 do jn represent the year in the century |
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86 | jn = 31 |
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87 | DO |
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88 | READ(inum,'(1x)',END=100) |
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89 | jn = jn + 1 |
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90 | END DO |
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91 | 100 jpyear = jn - 1 - iskip |
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92 | IF ( lwp) WRITE(numout,*) ' ', jpyear ,' years read' |
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93 | ! ! Allocate CFC arrays |
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94 | |
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95 | ALLOCATE( p_cfc(jpyear,jphem,2), STAT=ierr ) |
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96 | IF( ierr > 0 ) THEN |
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97 | CALL ctl_stop( 'trc_ini_cfc: unable to allocate p_cfc array' ) ; RETURN |
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98 | ENDIF |
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99 | IF( trc_sms_cfc_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'trc_ini_cfc: unable to allocate CFC arrays' ) |
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100 | |
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101 | |
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102 | ! Initialization of boundaries conditions |
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103 | ! --------------------------------------- |
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104 | xphem (:,:) = 0._wp |
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105 | p_cfc(:,:,:) = 0._wp |
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106 | |
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107 | ! Initialization of qint in case of no restart |
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108 | !---------------------------------------------- |
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109 | qtr_cfc(:,:,:) = 0._wp |
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110 | IF( .NOT. ln_rsttr ) THEN |
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111 | IF(lwp) THEN |
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112 | WRITE(numout,*) |
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113 | WRITE(numout,*) 'Initialization de qint ; No restart : qint equal zero ' |
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114 | ENDIF |
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115 | qint_cfc(:,:,:) = 0._wp |
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116 | DO jl = 1, jp_cfc |
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117 | jn = jp_cfc0 + jl - 1 |
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118 | trn(:,:,:,jn) = 0._wp |
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119 | END DO |
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120 | ENDIF |
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121 | |
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122 | REWIND(inum) |
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123 | |
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124 | DO jm = 1, iskip ! Skip over 1st six descriptor lines |
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125 | READ(inum,'(1x)') |
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126 | END DO |
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127 | ! file starts in 1931 do jn represent the year in the century.jhh |
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128 | ! Read file till the end |
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129 | jn = 31 |
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130 | DO |
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131 | READ(inum,*, IOSTAT=io) zyy, p_cfc(jn,1,1), p_cfc(jn,1,2), p_cfc(jn,2,1), p_cfc(jn,2,2) |
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132 | IF( io < 0 ) exit |
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133 | jn = jn + 1 |
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134 | END DO |
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135 | |
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136 | p_cfc(32,1:2,1) = 5.e-4 ! modify the values of the first years |
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137 | p_cfc(33,1:2,1) = 8.e-4 |
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138 | p_cfc(34,1:2,1) = 1.e-6 |
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139 | p_cfc(35,1:2,1) = 2.e-3 |
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140 | p_cfc(36,1:2,1) = 4.e-3 |
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141 | p_cfc(37,1:2,1) = 6.e-3 |
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142 | p_cfc(38,1:2,1) = 8.e-3 |
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143 | p_cfc(39,1:2,1) = 1.e-2 |
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144 | |
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145 | IF(lwp) THEN ! Control print |
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146 | WRITE(numout,*) |
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147 | WRITE(numout,*) ' Year p11HN p11HS p12HN p12HS ' |
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148 | DO jn = 30, jpyear |
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149 | WRITE(numout, '( 1I4, 4F9.2)') jn, p_cfc(jn,1,1), p_cfc(jn,2,1), p_cfc(jn,1,2), p_cfc(jn,2,2) |
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150 | END DO |
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151 | ENDIF |
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152 | |
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153 | |
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154 | ! Interpolation factor of atmospheric partial pressure |
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155 | ! Linear interpolation between 2 hemispheric function of latitud between ylats and ylatn |
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156 | !--------------------------------------------------------------------------------------- |
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157 | zyd = ylatn - ylats |
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158 | DO jj = 1 , jpj |
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159 | DO ji = 1 , jpi |
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160 | IF( gphit(ji,jj) >= ylatn ) THEN ; xphem(ji,jj) = 1.e0 |
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161 | ELSEIF( gphit(ji,jj) <= ylats ) THEN ; xphem(ji,jj) = 0.e0 |
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162 | ELSE ; xphem(ji,jj) = ( gphit(ji,jj) - ylats) / zyd |
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163 | ENDIF |
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164 | END DO |
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165 | END DO |
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166 | ! |
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167 | IF(lwp) WRITE(numout,*) 'Initialization of CFC tracers done' |
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168 | IF(lwp) WRITE(numout,*) ' ' |
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169 | ! |
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170 | END SUBROUTINE trc_ini_cfc |
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171 | |
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172 | !!====================================================================== |
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173 | END MODULE trcini_cfc |
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