1 | MODULE p4zopt |
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2 | !!====================================================================== |
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3 | !! *** MODULE p4zopt *** |
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4 | !! TOP - PISCES : Compute the light availability in the water column |
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5 | !!====================================================================== |
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6 | !! History : 1.0 ! 2004 (O. Aumont) Original code |
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7 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
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8 | !! 3.2 ! 2009-04 (C. Ethe, G. Madec) optimisation |
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9 | !! 3.4 ! 2011-06 (O. Aumont, C. Ethe) Improve light availability of nano & diat |
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10 | !!---------------------------------------------------------------------- |
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11 | !! p4z_opt : light availability in the water column |
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12 | !!---------------------------------------------------------------------- |
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13 | USE trc ! tracer variables |
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14 | USE oce_trc ! tracer-ocean share variables |
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15 | USE sms_pisces ! Source Minus Sink of PISCES |
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16 | USE iom ! I/O manager |
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17 | USE fldread ! time interpolation |
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18 | USE prtctl_trc ! print control for debugging |
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19 | |
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20 | IMPLICIT NONE |
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21 | PRIVATE |
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22 | |
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23 | PUBLIC p4z_opt ! called in p4zbio.F90 module |
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24 | PUBLIC p4z_opt_init ! called in trcsms_pisces.F90 module |
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25 | PUBLIC p4z_opt_alloc |
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26 | |
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27 | !! * Shared module variables |
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28 | |
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29 | LOGICAL :: ln_varpar ! boolean for variable PAR fraction |
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30 | REAL(wp) :: parlux ! Fraction of shortwave as PAR |
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31 | REAL(wp) :: xparsw ! parlux/3 |
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32 | REAL(wp) :: xsi0r ! 1. /rn_si0 |
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33 | |
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34 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_par ! structure of input par |
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35 | INTEGER , PARAMETER :: nbtimes = 366 !: maximum number of times record in a file |
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36 | INTEGER :: ntimes_par ! number of time steps in a file |
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37 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: par_varsw ! PAR fraction of shortwave |
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38 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: ekb, ekg, ekr ! wavelength (Red-Green-Blue) |
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39 | |
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40 | INTEGER :: nksrp ! levels below which the light cannot penetrate ( depth larger than 391 m) |
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41 | |
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42 | REAL(wp), DIMENSION(3,61) :: xkrgb ! tabulated attenuation coefficients for RGB absorption |
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43 | |
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44 | !!---------------------------------------------------------------------- |
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45 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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46 | !! $Id$ |
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47 | !! Software governed by the CeCILL license (see ./LICENSE) |
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48 | !!---------------------------------------------------------------------- |
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49 | CONTAINS |
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50 | |
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51 | SUBROUTINE p4z_opt( kt, knt ) |
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52 | !!--------------------------------------------------------------------- |
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53 | !! *** ROUTINE p4z_opt *** |
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54 | !! |
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55 | !! ** Purpose : Compute the light availability in the water column |
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56 | !! depending on the depth and the chlorophyll concentration |
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57 | !! |
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58 | !! ** Method : - ??? |
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59 | !!--------------------------------------------------------------------- |
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60 | INTEGER, INTENT(in) :: kt, knt ! ocean time step |
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61 | ! |
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62 | INTEGER :: ji, jj, jk |
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63 | INTEGER :: irgb |
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64 | REAL(wp) :: zchl |
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65 | REAL(wp) :: zc0 , zc1 , zc2, zc3, z1_dep |
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66 | REAL(wp), ALLOCATABLE, DIMENSION(:,: ) :: zetmp5 |
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67 | REAL(wp), DIMENSION(jpi,jpj ) :: zdepmoy, zetmp1, zetmp2, zetmp3, zetmp4 |
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68 | REAL(wp), DIMENSION(jpi,jpj ) :: zqsr100, zqsr_corr |
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69 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zpar, ze0, ze1, ze2, ze3, zchl3d |
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70 | !!--------------------------------------------------------------------- |
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71 | ! |
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72 | IF( ln_timing ) CALL timing_start('p4z_opt') |
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73 | IF( ln_p5z ) ALLOCATE( zetmp5(jpi,jpj) ) |
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74 | |
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75 | IF( knt == 1 .AND. ln_varpar ) CALL p4z_opt_sbc( kt ) |
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76 | |
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77 | ! Initialisation of variables used to compute PAR |
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78 | ! ----------------------------------------------- |
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79 | ze1(:,:,:) = 0._wp |
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80 | ze2(:,:,:) = 0._wp |
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81 | ze3(:,:,:) = 0._wp |
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82 | ! |
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83 | ! !* attenuation coef. function of Chlorophyll and wavelength (Red-Green-Blue) |
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84 | ! ! -------------------------------------------------------- |
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85 | zchl3d(:,:,:) = trb(:,:,:,jpnch) + trb(:,:,:,jpdch) |
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86 | IF( ln_p5z ) zchl3d(:,:,:) = zchl3d(:,:,:) + trb(:,:,:,jppch) |
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87 | ! |
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88 | DO jk = 1, jpkm1 |
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89 | DO jj = 1, jpj |
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90 | DO ji = 1, jpi |
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91 | zchl = ( zchl3d(ji,jj,jk) + rtrn ) * 1.e6 |
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92 | zchl = MIN( 10. , MAX( 0.05, zchl ) ) |
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93 | irgb = NINT( 41 + 20.* LOG10( zchl ) + rtrn ) |
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94 | ! |
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95 | ekb(ji,jj,jk) = xkrgb(1,irgb) * e3t_n(ji,jj,jk) |
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96 | ekg(ji,jj,jk) = xkrgb(2,irgb) * e3t_n(ji,jj,jk) |
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97 | ekr(ji,jj,jk) = xkrgb(3,irgb) * e3t_n(ji,jj,jk) |
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98 | END DO |
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99 | END DO |
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100 | END DO |
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101 | ! !* Photosynthetically Available Radiation (PAR) |
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102 | ! ! -------------------------------------- |
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103 | IF( l_trcdm2dc ) THEN ! diurnal cycle |
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104 | ! |
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105 | zqsr_corr(:,:) = qsr_mean(:,:) / ( 1.-fr_i(:,:) + rtrn ) |
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106 | ! |
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107 | CALL p4z_opt_par( kt, zqsr_corr, ze1, ze2, ze3, pqsr100 = zqsr100 ) |
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108 | ! |
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109 | DO jk = 1, nksrp |
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110 | etot_ndcy(:,:,jk) = ze1(:,:,jk) + ze2(:,:,jk) + ze3(:,:,jk) |
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111 | enano (:,:,jk) = 1.85 * ze1(:,:,jk) + 0.69 * ze2(:,:,jk) + 0.46 * ze3(:,:,jk) |
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112 | ediat (:,:,jk) = 1.62 * ze1(:,:,jk) + 0.74 * ze2(:,:,jk) + 0.63 * ze3(:,:,jk) |
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113 | END DO |
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114 | IF( ln_p5z ) THEN |
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115 | DO jk = 1, nksrp |
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116 | epico (:,:,jk) = 1.94 * ze1(:,:,jk) + 0.66 * ze2(:,:,jk) + 0.4 * ze3(:,:,jk) |
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117 | END DO |
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118 | ENDIF |
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119 | ! |
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120 | zqsr_corr(:,:) = qsr(:,:) / ( 1.-fr_i(:,:) + rtrn ) |
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121 | ! |
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122 | CALL p4z_opt_par( kt, zqsr_corr, ze1, ze2, ze3 ) |
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123 | ! |
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124 | DO jk = 1, nksrp |
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125 | etot(:,:,jk) = ze1(:,:,jk) + ze2(:,:,jk) + ze3(:,:,jk) |
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126 | END DO |
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127 | ! |
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128 | ELSE |
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129 | ! |
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130 | zqsr_corr(:,:) = qsr(:,:) / ( 1.-fr_i(:,:) + rtrn ) |
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131 | ! |
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132 | CALL p4z_opt_par( kt, zqsr_corr, ze1, ze2, ze3, pqsr100 = zqsr100 ) |
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133 | ! |
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134 | DO jk = 1, nksrp |
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135 | etot (:,:,jk) = ze1(:,:,jk) + ze2(:,:,jk) + ze3(:,:,jk) |
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136 | enano(:,:,jk) = 1.85 * ze1(:,:,jk) + 0.69 * ze2(:,:,jk) + 0.46 * ze3(:,:,jk) |
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137 | ediat(:,:,jk) = 1.62 * ze1(:,:,jk) + 0.74 * ze2(:,:,jk) + 0.63 * ze3(:,:,jk) |
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138 | END DO |
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139 | IF( ln_p5z ) THEN |
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140 | DO jk = 1, nksrp |
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141 | epico(:,:,jk) = 1.94 * ze1(:,:,jk) + 0.66 * ze2(:,:,jk) + 0.4 * ze3(:,:,jk) |
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142 | END DO |
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143 | ENDIF |
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144 | etot_ndcy(:,:,:) = etot(:,:,:) |
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145 | ENDIF |
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146 | |
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147 | |
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148 | IF( ln_qsr_bio ) THEN !* heat flux accros w-level (used in the dynamics) |
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149 | ! ! ------------------------ |
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150 | CALL p4z_opt_par( kt, qsr, ze1, ze2, ze3, pe0=ze0 ) |
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151 | ! |
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152 | etot3(:,:,1) = qsr(:,:) * tmask(:,:,1) |
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153 | DO jk = 2, nksrp + 1 |
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154 | etot3(:,:,jk) = ( ze0(:,:,jk) + ze1(:,:,jk) + ze2(:,:,jk) + ze3(:,:,jk) ) * tmask(:,:,jk) |
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155 | END DO |
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156 | ! ! ------------------------ |
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157 | ENDIF |
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158 | ! !* Euphotic depth and level |
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159 | neln (:,:) = 1 ! ------------------------ |
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160 | heup (:,:) = gdepw_n(:,:,2) |
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161 | heup_01(:,:) = gdepw_n(:,:,2) |
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162 | |
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163 | DO jk = 2, nksrp |
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164 | DO jj = 1, jpj |
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165 | DO ji = 1, jpi |
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166 | IF( etot_ndcy(ji,jj,jk) * tmask(ji,jj,jk) >= zqsr100(ji,jj) ) THEN |
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167 | neln(ji,jj) = jk+1 ! Euphotic level : 1rst T-level strictly below Euphotic layer |
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168 | ! ! nb: ensure the compatibility with nmld_trc definition in trd_mld_trc_zint |
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169 | heup(ji,jj) = gdepw_n(ji,jj,jk+1) ! Euphotic layer depth |
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170 | ENDIF |
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171 | IF( etot_ndcy(ji,jj,jk) * tmask(ji,jj,jk) >= 0.50 ) THEN |
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172 | heup_01(ji,jj) = gdepw_n(ji,jj,jk+1) ! Euphotic layer depth (light level definition) |
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173 | ENDIF |
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174 | END DO |
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175 | END DO |
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176 | END DO |
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177 | ! |
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178 | heup (:,:) = MIN( 300., heup (:,:) ) |
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179 | heup_01(:,:) = MIN( 300., heup_01(:,:) ) |
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180 | ! !* mean light over the mixed layer |
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181 | zdepmoy(:,:) = 0.e0 ! ------------------------------- |
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182 | zetmp1 (:,:) = 0.e0 |
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183 | zetmp2 (:,:) = 0.e0 |
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184 | |
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185 | DO jk = 1, nksrp |
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186 | DO jj = 1, jpj |
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187 | DO ji = 1, jpi |
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188 | IF( gdepw_n(ji,jj,jk+1) <= hmld(ji,jj) ) THEN |
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189 | zetmp1 (ji,jj) = zetmp1 (ji,jj) + etot (ji,jj,jk) * e3t_n(ji,jj,jk) ! remineralisation |
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190 | zetmp2 (ji,jj) = zetmp2 (ji,jj) + etot_ndcy(ji,jj,jk) * e3t_n(ji,jj,jk) ! production |
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191 | zdepmoy(ji,jj) = zdepmoy(ji,jj) + e3t_n(ji,jj,jk) |
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192 | ENDIF |
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193 | END DO |
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194 | END DO |
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195 | END DO |
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196 | ! |
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197 | emoy(:,:,:) = etot(:,:,:) ! remineralisation |
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198 | zpar(:,:,:) = etot_ndcy(:,:,:) ! diagnostic : PAR with no diurnal cycle |
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199 | ! |
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200 | DO jk = 1, nksrp |
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201 | DO jj = 1, jpj |
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202 | DO ji = 1, jpi |
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203 | IF( gdepw_n(ji,jj,jk+1) <= hmld(ji,jj) ) THEN |
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204 | z1_dep = 1. / ( zdepmoy(ji,jj) + rtrn ) |
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205 | emoy (ji,jj,jk) = zetmp1(ji,jj) * z1_dep |
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206 | zpar (ji,jj,jk) = zetmp2(ji,jj) * z1_dep |
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207 | ENDIF |
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208 | END DO |
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209 | END DO |
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210 | END DO |
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211 | ! |
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212 | zdepmoy(:,:) = 0.e0 |
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213 | zetmp3 (:,:) = 0.e0 |
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214 | zetmp4 (:,:) = 0.e0 |
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215 | ! |
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216 | DO jk = 1, nksrp |
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217 | DO jj = 1, jpj |
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218 | DO ji = 1, jpi |
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219 | IF( gdepw_n(ji,jj,jk+1) <= MIN(hmld(ji,jj), heup_01(ji,jj)) ) THEN |
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220 | zetmp3 (ji,jj) = zetmp3 (ji,jj) + enano (ji,jj,jk) * e3t_n(ji,jj,jk) ! production |
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221 | zetmp4 (ji,jj) = zetmp4 (ji,jj) + ediat (ji,jj,jk) * e3t_n(ji,jj,jk) ! production |
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222 | zdepmoy(ji,jj) = zdepmoy(ji,jj) + e3t_n(ji,jj,jk) |
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223 | ENDIF |
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224 | END DO |
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225 | END DO |
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226 | END DO |
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227 | enanom(:,:,:) = enano(:,:,:) |
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228 | ediatm(:,:,:) = ediat(:,:,:) |
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229 | ! |
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230 | DO jk = 1, nksrp |
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231 | DO jj = 1, jpj |
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232 | DO ji = 1, jpi |
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233 | IF( gdepw_n(ji,jj,jk+1) <= hmld(ji,jj) ) THEN |
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234 | z1_dep = 1. / ( zdepmoy(ji,jj) + rtrn ) |
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235 | enanom(ji,jj,jk) = zetmp3(ji,jj) * z1_dep |
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236 | ediatm(ji,jj,jk) = zetmp4(ji,jj) * z1_dep |
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237 | ENDIF |
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238 | END DO |
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239 | END DO |
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240 | END DO |
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241 | ! |
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242 | IF( ln_p5z ) THEN |
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243 | zetmp5 (:,:) = 0.e0 |
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244 | DO jk = 1, nksrp |
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245 | DO jj = 1, jpj |
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246 | DO ji = 1, jpi |
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247 | IF( gdepw_n(ji,jj,jk+1) <= MIN(hmld(ji,jj), heup_01(ji,jj)) ) THEN |
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248 | zetmp5(ji,jj) = zetmp5 (ji,jj) + epico(ji,jj,jk) * e3t_n(ji,jj,jk) ! production |
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249 | ENDIF |
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250 | END DO |
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251 | END DO |
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252 | END DO |
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253 | ! |
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254 | epicom(:,:,:) = epico(:,:,:) |
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255 | ! |
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256 | DO jk = 1, nksrp |
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257 | DO jj = 1, jpj |
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258 | DO ji = 1, jpi |
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259 | IF( gdepw_n(ji,jj,jk+1) <= hmld(ji,jj) ) THEN |
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260 | z1_dep = 1. / ( zdepmoy(ji,jj) + rtrn ) |
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261 | epicom(ji,jj,jk) = zetmp5(ji,jj) * z1_dep |
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262 | ENDIF |
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263 | END DO |
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264 | END DO |
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265 | END DO |
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266 | ENDIF |
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267 | IF( lk_iomput ) THEN |
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268 | IF( knt == nrdttrc ) THEN |
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269 | IF( iom_use( "Heup" ) ) CALL iom_put( "Heup" , heup(:,: ) * tmask(:,:,1) ) ! euphotic layer deptht |
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270 | IF( iom_use( "PARDM" ) ) CALL iom_put( "PARDM", zpar(:,:,:) * tmask(:,:,:) ) ! Photosynthetically Available Radiation |
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271 | IF( iom_use( "PAR" ) ) CALL iom_put( "PAR" , emoy(:,:,:) * tmask(:,:,:) ) ! Photosynthetically Available Radiation |
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272 | ENDIF |
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273 | ENDIF |
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274 | ! |
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275 | IF( ln_p5z ) DEALLOCATE( zetmp5 ) |
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276 | IF( ln_timing ) CALL timing_stop('p4z_opt') |
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277 | ! |
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278 | END SUBROUTINE p4z_opt |
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279 | |
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280 | |
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281 | SUBROUTINE p4z_opt_par( kt, pqsr, pe1, pe2, pe3, pe0, pqsr100 ) |
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282 | !!---------------------------------------------------------------------- |
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283 | !! *** routine p4z_opt_par *** |
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284 | !! |
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285 | !! ** purpose : compute PAR of each wavelength (Red-Green-Blue) |
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286 | !! for a given shortwave radiation |
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287 | !! |
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288 | !!---------------------------------------------------------------------- |
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289 | INTEGER , INTENT(in) :: kt ! ocean time-step |
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290 | REAL(wp), DIMENSION(jpi,jpj) , INTENT(in ) :: pqsr ! shortwave |
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291 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pe1 , pe2 , pe3 ! PAR ( R-G-B) |
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292 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout), OPTIONAL :: pe0 ! |
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293 | REAL(wp), DIMENSION(jpi,jpj) , INTENT( out), OPTIONAL :: pqsr100 ! |
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294 | ! |
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295 | INTEGER :: ji, jj, jk ! dummy loop indices |
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296 | REAL(wp), DIMENSION(jpi,jpj) :: zqsr ! shortwave |
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297 | !!---------------------------------------------------------------------- |
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298 | |
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299 | ! Real shortwave |
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300 | IF( ln_varpar ) THEN ; zqsr(:,:) = par_varsw(:,:) * pqsr(:,:) |
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301 | ELSE ; zqsr(:,:) = xparsw * pqsr(:,:) |
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302 | ENDIF |
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303 | |
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304 | ! Light at the euphotic depth |
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305 | IF( PRESENT( pqsr100 ) ) pqsr100(:,:) = 0.01 * 3. * zqsr(:,:) |
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306 | |
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307 | IF( PRESENT( pe0 ) ) THEN ! W-level |
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308 | ! |
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309 | pe0(:,:,1) = pqsr(:,:) - 3. * zqsr(:,:) ! ( 1 - 3 * alpha ) * q |
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310 | pe1(:,:,1) = zqsr(:,:) |
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311 | pe2(:,:,1) = zqsr(:,:) |
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312 | pe3(:,:,1) = zqsr(:,:) |
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313 | ! |
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314 | DO jk = 2, nksrp + 1 |
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315 | DO jj = 1, jpj |
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316 | DO ji = 1, jpi |
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317 | pe0(ji,jj,jk) = pe0(ji,jj,jk-1) * EXP( -e3t_n(ji,jj,jk-1) * xsi0r ) |
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318 | pe1(ji,jj,jk) = pe1(ji,jj,jk-1) * EXP( -ekb (ji,jj,jk-1 ) ) |
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319 | pe2(ji,jj,jk) = pe2(ji,jj,jk-1) * EXP( -ekg (ji,jj,jk-1 ) ) |
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320 | pe3(ji,jj,jk) = pe3(ji,jj,jk-1) * EXP( -ekr (ji,jj,jk-1 ) ) |
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321 | END DO |
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322 | ! |
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323 | END DO |
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324 | ! |
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325 | END DO |
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326 | ! |
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327 | ELSE ! T- level |
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328 | ! |
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329 | pe1(:,:,1) = zqsr(:,:) * EXP( -0.5 * ekb(:,:,1) ) |
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330 | pe2(:,:,1) = zqsr(:,:) * EXP( -0.5 * ekg(:,:,1) ) |
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331 | pe3(:,:,1) = zqsr(:,:) * EXP( -0.5 * ekr(:,:,1) ) |
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332 | ! |
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333 | DO jk = 2, nksrp |
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334 | DO jj = 1, jpj |
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335 | DO ji = 1, jpi |
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336 | pe1(ji,jj,jk) = pe1(ji,jj,jk-1) * EXP( -0.5 * ( ekb(ji,jj,jk-1) + ekb(ji,jj,jk) ) ) |
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337 | pe2(ji,jj,jk) = pe2(ji,jj,jk-1) * EXP( -0.5 * ( ekg(ji,jj,jk-1) + ekg(ji,jj,jk) ) ) |
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338 | pe3(ji,jj,jk) = pe3(ji,jj,jk-1) * EXP( -0.5 * ( ekr(ji,jj,jk-1) + ekr(ji,jj,jk) ) ) |
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339 | END DO |
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340 | END DO |
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341 | END DO |
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342 | ! |
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343 | ENDIF |
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344 | ! |
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345 | END SUBROUTINE p4z_opt_par |
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346 | |
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347 | |
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348 | SUBROUTINE p4z_opt_sbc( kt ) |
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349 | !!---------------------------------------------------------------------- |
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350 | !! *** routine p4z_opt_sbc *** |
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351 | !! |
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352 | !! ** purpose : read and interpolate the variable PAR fraction |
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353 | !! of shortwave radiation |
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354 | !! |
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355 | !! ** method : read the files and interpolate the appropriate variables |
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356 | !! |
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357 | !! ** input : external netcdf files |
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358 | !! |
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359 | !!---------------------------------------------------------------------- |
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360 | INTEGER, INTENT(in) :: kt ! ocean time step |
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361 | ! |
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362 | INTEGER :: ji,jj |
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363 | REAL(wp) :: zcoef |
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364 | !!--------------------------------------------------------------------- |
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365 | ! |
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366 | IF( ln_timing ) CALL timing_start('p4z_optsbc') |
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367 | ! |
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368 | ! Compute par_varsw at nit000 or only if there is more than 1 time record in par coefficient file |
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369 | IF( ln_varpar ) THEN |
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370 | IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_par > 1 ) ) THEN |
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371 | CALL fld_read( kt, 1, sf_par ) |
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372 | par_varsw(:,:) = ( sf_par(1)%fnow(:,:,1) ) / 3.0 |
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373 | ENDIF |
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374 | ENDIF |
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375 | ! |
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376 | IF( ln_timing ) CALL timing_stop('p4z_optsbc') |
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377 | ! |
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378 | END SUBROUTINE p4z_opt_sbc |
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379 | |
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380 | |
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381 | SUBROUTINE p4z_opt_init |
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382 | !!---------------------------------------------------------------------- |
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383 | !! *** ROUTINE p4z_opt_init *** |
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384 | !! |
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385 | !! ** Purpose : Initialization of tabulated attenuation coef |
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386 | !! and of the percentage of PAR in Shortwave |
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387 | !! |
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388 | !! ** Input : external ascii and netcdf files |
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389 | !!---------------------------------------------------------------------- |
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390 | INTEGER :: numpar, ierr, ios ! Local integer |
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391 | ! |
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392 | CHARACTER(len=100) :: cn_dir ! Root directory for location of ssr files |
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393 | TYPE(FLD_N) :: sn_par ! informations about the fields to be read |
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394 | ! |
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395 | NAMELIST/nampisopt/cn_dir, sn_par, ln_varpar, parlux |
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396 | !!---------------------------------------------------------------------- |
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397 | IF(lwp) THEN |
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398 | WRITE(numout,*) |
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399 | WRITE(numout,*) 'p4z_opt_init : ' |
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400 | WRITE(numout,*) '~~~~~~~~~~~~ ' |
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401 | ENDIF |
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402 | REWIND( numnatp_ref ) ! Namelist nampisopt in reference namelist : Pisces attenuation coef. and PAR |
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403 | READ ( numnatp_ref, nampisopt, IOSTAT = ios, ERR = 901) |
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404 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampisopt in reference namelist' ) |
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405 | REWIND( numnatp_cfg ) ! Namelist nampisopt in configuration namelist : Pisces attenuation coef. and PAR |
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406 | READ ( numnatp_cfg, nampisopt, IOSTAT = ios, ERR = 902 ) |
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407 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'nampisopt in configuration namelist' ) |
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408 | IF(lwm) WRITE ( numonp, nampisopt ) |
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409 | |
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410 | IF(lwp) THEN |
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411 | WRITE(numout,*) ' Namelist : nampisopt ' |
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412 | WRITE(numout,*) ' PAR as a variable fraction of SW ln_varpar = ', ln_varpar |
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413 | WRITE(numout,*) ' Default value for the PAR fraction parlux = ', parlux |
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414 | ENDIF |
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415 | ! |
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416 | xparsw = parlux / 3.0 |
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417 | xsi0r = 1.e0 / rn_si0 |
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418 | ! |
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419 | ! Variable PAR at the surface of the ocean |
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420 | ! ---------------------------------------- |
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421 | IF( ln_varpar ) THEN |
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422 | IF(lwp) WRITE(numout,*) |
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423 | IF(lwp) WRITE(numout,*) ' ==>>> initialize variable par fraction (ln_varpar=T)' |
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424 | ! |
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425 | ALLOCATE( par_varsw(jpi,jpj) ) |
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426 | ! |
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427 | ALLOCATE( sf_par(1), STAT=ierr ) !* allocate and fill sf_sst (forcing structure) with sn_sst |
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428 | IF( ierr > 0 ) CALL ctl_stop( 'STOP', 'p4z_opt_init: unable to allocate sf_par structure' ) |
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429 | ! |
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430 | CALL fld_fill( sf_par, (/ sn_par /), cn_dir, 'p4z_opt_init', 'Variable PAR fraction ', 'nampisopt' ) |
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431 | ALLOCATE( sf_par(1)%fnow(jpi,jpj,1) ) |
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432 | IF( sn_par%ln_tint ) ALLOCATE( sf_par(1)%fdta(jpi,jpj,1,2) ) |
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433 | |
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434 | CALL iom_open ( TRIM( sn_par%clname ) , numpar ) |
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435 | ntimes_par = iom_getszuld( numpar ) ! get number of record in file |
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436 | ENDIF |
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437 | ! |
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438 | CALL trc_oce_rgb( xkrgb ) ! tabulated attenuation coefficients |
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439 | nksrp = trc_oce_ext_lev( r_si2, 0.33e2 ) ! max level of light extinction (Blue Chl=0.01) |
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440 | ! |
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441 | IF(lwp) WRITE(numout,*) ' level of light extinction = ', nksrp, ' ref depth = ', gdepw_1d(nksrp+1), ' m' |
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442 | ! |
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443 | ekr (:,:,:) = 0._wp |
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444 | ekb (:,:,:) = 0._wp |
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445 | ekg (:,:,:) = 0._wp |
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446 | etot (:,:,:) = 0._wp |
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447 | etot_ndcy(:,:,:) = 0._wp |
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448 | enano (:,:,:) = 0._wp |
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449 | ediat (:,:,:) = 0._wp |
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450 | IF( ln_p5z ) epico (:,:,:) = 0._wp |
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451 | IF( ln_qsr_bio ) etot3 (:,:,:) = 0._wp |
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452 | ! |
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453 | END SUBROUTINE p4z_opt_init |
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454 | |
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455 | |
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456 | INTEGER FUNCTION p4z_opt_alloc() |
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457 | !!---------------------------------------------------------------------- |
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458 | !! *** ROUTINE p4z_opt_alloc *** |
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459 | !!---------------------------------------------------------------------- |
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460 | ! |
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461 | ALLOCATE( ekb(jpi,jpj,jpk), ekr(jpi,jpj,jpk), & |
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462 | ekg(jpi,jpj,jpk), STAT= p4z_opt_alloc ) |
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463 | ! |
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464 | IF( p4z_opt_alloc /= 0 ) CALL ctl_stop( 'STOP', 'p4z_opt_alloc : failed to allocate arrays.' ) |
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465 | ! |
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466 | END FUNCTION p4z_opt_alloc |
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467 | |
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468 | !!====================================================================== |
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469 | END MODULE p4zopt |
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