1 | MODULE p5zmort |
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2 | !!====================================================================== |
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3 | !! *** MODULE p5zmort *** |
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4 | !! TOP : PISCES-QUOTA Compute the mortality terms for phytoplankton |
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5 | !!====================================================================== |
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6 | !! History : 1.0 ! 2002 (O. Aumont) Original code |
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7 | !! 2.0 ! 2007-12 (C. Ethe, G. Madec) F90 |
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8 | !! 3.6 ! 2015-05 (O. Aumont) PISCES quota |
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9 | !!---------------------------------------------------------------------- |
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10 | !! p5z_mort : Compute the mortality terms for phytoplankton |
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11 | !! p5z_mort_init : Initialize the mortality params for phytoplankton |
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12 | !!---------------------------------------------------------------------- |
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13 | USE oce_trc ! shared variables between ocean and passive tracers |
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14 | USE trc ! passive tracers common variables |
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15 | USE sms_pisces ! PISCES Source Minus Sink variables |
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16 | USE p4zlim ! Phytoplankton limitation terms (p4z) |
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17 | USE p5zlim ! Phytoplankton limitation terms (p5z) |
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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 p5z_mort ! Called from p4zbio.F90 |
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24 | PUBLIC p5z_mort_init ! Called from trcini_pisces.F90 |
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25 | |
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26 | !! * Shared module variables |
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27 | REAL(wp), PUBLIC :: wchln !! Quadratic mortality rate of nanophytoplankton |
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28 | REAL(wp), PUBLIC :: wchlp !: Quadratic mortality rate of picophytoplankton |
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29 | REAL(wp), PUBLIC :: wchld !: Quadratic mortality rate of diatoms |
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30 | REAL(wp), PUBLIC :: mpratn !: Linear mortality rate of nanophytoplankton |
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31 | REAL(wp), PUBLIC :: mpratp !: Linear mortality rate of picophytoplankton |
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32 | REAL(wp), PUBLIC :: mpratd !: Linear mortality rate of diatoms |
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33 | |
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34 | !!---------------------------------------------------------------------- |
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35 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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36 | !! $Id$ |
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37 | !! Software governed by the CeCILL license (see ./LICENSE) |
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38 | !!---------------------------------------------------------------------- |
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39 | |
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40 | CONTAINS |
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41 | |
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42 | SUBROUTINE p5z_mort( kt ) |
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43 | !!--------------------------------------------------------------------- |
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44 | !! *** ROUTINE p5z_mort *** |
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45 | !! |
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46 | !! ** Purpose : Calls the different subroutine to compute |
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47 | !! the different phytoplankton mortality terms |
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48 | !! |
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49 | !! ** Method : - ??? |
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50 | !!--------------------------------------------------------------------- |
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51 | INTEGER, INTENT(in) :: kt ! ocean time step |
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52 | !!--------------------------------------------------------------------- |
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53 | |
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54 | CALL p5z_mort_nano ! nanophytoplankton |
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55 | CALL p5z_mort_pico ! picophytoplankton |
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56 | CALL p5z_mort_diat ! diatoms |
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57 | |
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58 | END SUBROUTINE p5z_mort |
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59 | |
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60 | |
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61 | SUBROUTINE p5z_mort_nano |
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62 | !!--------------------------------------------------------------------- |
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63 | !! *** ROUTINE p5z_mort_nano *** |
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64 | !! |
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65 | !! ** Purpose : Compute the mortality terms for nanophytoplankton |
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66 | !! |
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67 | !! ** Method : - Both quadratic and simili linear mortality terms |
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68 | !!--------------------------------------------------------------------- |
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69 | INTEGER :: ji, jj, jk |
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70 | REAL(wp) :: zcompaph, zlim1, zlim2 |
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71 | REAL(wp) :: zfactfe, zfactch, zfactn, zfactp, zprcaca |
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72 | REAL(wp) :: ztortp , zrespp , zmortp |
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73 | CHARACTER (len=25) :: charout |
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74 | !!--------------------------------------------------------------------- |
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75 | ! |
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76 | IF( ln_timing ) CALL timing_start('p5z_mort_nano') |
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77 | ! |
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78 | prodcal(:,:,:) = 0. !: calcite production variable set to zero |
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79 | DO jk = 1, jpkm1 |
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80 | DO jj = 1, jpj |
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81 | DO ji = 1, jpi |
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82 | zcompaph = MAX( ( trb(ji,jj,jk,jpphy) - 1e-9 ), 0.e0 ) |
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83 | |
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84 | ! Quadratic mortality of nano due to aggregation during |
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85 | ! blooms (Doney et al. 1996) |
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86 | ! ----------------------------------------------------- |
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87 | zlim2 = xlimphy(ji,jj,jk) * xlimphy(ji,jj,jk) |
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88 | zlim1 = 0.25 * ( 1. - zlim2 ) / ( 0.25 + zlim2 ) * trb(ji,jj,jk,jpphy) |
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89 | zrespp = wchln * 1.e6 * xstep * zlim1 * xdiss(ji,jj,jk) * zcompaph |
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90 | |
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91 | ! Phytoplankton linear mortality |
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92 | ! A michaelis-menten like term is introduced to avoid |
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93 | ! extinction of nanophyto in highly limited areas |
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94 | ! ---------------------------------------------------- |
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95 | ztortp = mpratn * xstep * zcompaph * trb(ji,jj,jk,jpphy) / ( xkmort + trb(ji,jj,jk,jpphy) ) |
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96 | zmortp = zrespp + ztortp |
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97 | |
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98 | ! Update the arrays TRA which contains the biological sources and sinks |
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99 | |
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100 | zfactn = trb(ji,jj,jk,jpnph)/(trb(ji,jj,jk,jpphy)+rtrn) |
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101 | zfactp = trb(ji,jj,jk,jppph)/(trb(ji,jj,jk,jpphy)+rtrn) |
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102 | zfactfe = trb(ji,jj,jk,jpnfe)/(trb(ji,jj,jk,jpphy)+rtrn) |
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103 | zfactch = trb(ji,jj,jk,jpnch)/(trb(ji,jj,jk,jpphy)+rtrn) |
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104 | tra(ji,jj,jk,jpphy) = tra(ji,jj,jk,jpphy) - zmortp |
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105 | tra(ji,jj,jk,jpnph) = tra(ji,jj,jk,jpnph) - zmortp * zfactn |
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106 | tra(ji,jj,jk,jppph) = tra(ji,jj,jk,jppph) - zmortp * zfactp |
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107 | tra(ji,jj,jk,jpnch) = tra(ji,jj,jk,jpnch) - zmortp * zfactch |
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108 | tra(ji,jj,jk,jpnfe) = tra(ji,jj,jk,jpnfe) - zmortp * zfactfe |
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109 | ! Production PIC particles due to mortality |
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110 | zprcaca = xfracal(ji,jj,jk) * zmortp |
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111 | prodcal(ji,jj,jk) = prodcal(ji,jj,jk) + zprcaca ! prodcal=prodcal(nanophy)+prodcal(microzoo)+prodcal(mesozoo) |
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112 | ! |
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113 | tra(ji,jj,jk,jpdic) = tra(ji,jj,jk,jpdic) - zprcaca |
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114 | tra(ji,jj,jk,jptal) = tra(ji,jj,jk,jptal) - 2. * zprcaca |
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115 | tra(ji,jj,jk,jpcal) = tra(ji,jj,jk,jpcal) + zprcaca |
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116 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zmortp |
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117 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) + zmortp * zfactn |
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118 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) + zmortp * zfactp |
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119 | prodpoc(ji,jj,jk) = prodpoc(ji,jj,jk) + zmortp |
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120 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) + zmortp * zfactfe |
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121 | END DO |
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122 | END DO |
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123 | END DO |
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124 | ! |
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125 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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126 | WRITE(charout, FMT="('nano')") |
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127 | CALL prt_ctl_trc_info(charout) |
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128 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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129 | ENDIF |
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130 | ! |
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131 | IF( ln_timing ) CALL timing_stop('p5z_mort_nano') |
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132 | ! |
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133 | END SUBROUTINE p5z_mort_nano |
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134 | |
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135 | |
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136 | SUBROUTINE p5z_mort_pico |
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137 | !!--------------------------------------------------------------------- |
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138 | !! *** ROUTINE p5z_mort_pico *** |
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139 | !! |
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140 | !! ** Purpose : Compute the mortality terms for picophytoplankton |
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141 | !! |
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142 | !! ** Method : - Both quadratic and semilininear terms are used |
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143 | !!--------------------------------------------------------------------- |
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144 | INTEGER :: ji, jj, jk |
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145 | REAL(wp) :: zcompaph, zlim1, zlim2 |
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146 | REAL(wp) :: zfactfe, zfactch, zfactn, zfactp |
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147 | REAL(wp) :: ztortp , zrespp , zmortp |
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148 | CHARACTER (len=25) :: charout |
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149 | !!--------------------------------------------------------------------- |
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150 | ! |
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151 | IF( ln_timing ) CALL timing_start('p5z_mort_pico') |
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152 | ! |
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153 | DO jk = 1, jpkm1 |
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154 | DO jj = 1, jpj |
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155 | DO ji = 1, jpi |
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156 | zcompaph = MAX( ( trb(ji,jj,jk,jppic) - 1e-9 ), 0.e0 ) |
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157 | |
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158 | ! Quadratic mortality of pico due to aggregation during |
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159 | ! blooms (Doney et al. 1996) |
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160 | ! ----------------------------------------------------- |
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161 | zlim2 = xlimpic(ji,jj,jk) * xlimpic(ji,jj,jk) |
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162 | zlim1 = 0.25 * ( 1. - zlim2 ) / ( 0.25 + zlim2 ) * trb(ji,jj,jk,jppic) |
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163 | zrespp = wchlp * 1.e6 * xstep * zlim1 * xdiss(ji,jj,jk) * zcompaph |
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164 | |
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165 | ! Phytoplankton linear mortality |
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166 | ! A michaelis-menten like term is introduced to avoid |
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167 | ! extinction of picophyto in highly limited areas |
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168 | ! ---------------------------------------------------- |
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169 | ztortp = mpratp * xstep * zcompaph * trb(ji,jj,jk,jppic) / ( xkmort + trb(ji,jj,jk,jppic) ) |
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170 | zmortp = zrespp + ztortp |
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171 | |
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172 | ! Update the arrays TRA which contains the biological sources and sinks |
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173 | zfactn = trb(ji,jj,jk,jpnpi)/(trb(ji,jj,jk,jppic)+rtrn) |
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174 | zfactp = trb(ji,jj,jk,jpppi)/(trb(ji,jj,jk,jppic)+rtrn) |
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175 | zfactfe = trb(ji,jj,jk,jppfe)/(trb(ji,jj,jk,jppic)+rtrn) |
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176 | zfactch = trb(ji,jj,jk,jppch)/(trb(ji,jj,jk,jppic)+rtrn) |
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177 | tra(ji,jj,jk,jppic) = tra(ji,jj,jk,jppic) - zmortp |
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178 | tra(ji,jj,jk,jpnpi) = tra(ji,jj,jk,jpnpi) - zmortp * zfactn |
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179 | tra(ji,jj,jk,jpppi) = tra(ji,jj,jk,jpppi) - zmortp * zfactp |
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180 | tra(ji,jj,jk,jppch) = tra(ji,jj,jk,jppch) - zmortp * zfactch |
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181 | tra(ji,jj,jk,jppfe) = tra(ji,jj,jk,jppfe) - zmortp * zfactfe |
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182 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zmortp |
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183 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) + zmortp * zfactn |
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184 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) + zmortp * zfactp |
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185 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) + zmortp * zfactfe |
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186 | prodpoc(ji,jj,jk) = prodpoc(ji,jj,jk) + zmortp |
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187 | END DO |
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188 | END DO |
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189 | END DO |
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190 | ! |
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191 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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192 | WRITE(charout, FMT="('pico')") |
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193 | CALL prt_ctl_trc_info(charout) |
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194 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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195 | ENDIF |
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196 | ! |
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197 | IF( ln_timing ) CALL timing_stop('p5z_mort_pico') |
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198 | ! |
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199 | END SUBROUTINE p5z_mort_pico |
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200 | |
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201 | |
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202 | SUBROUTINE p5z_mort_diat |
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203 | !!--------------------------------------------------------------------- |
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204 | !! *** ROUTINE p5z_mort_diat *** |
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205 | !! |
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206 | !! ** Purpose : Compute the mortality terms for diatoms |
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207 | !! |
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208 | !! ** Method : - ??? |
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209 | !!--------------------------------------------------------------------- |
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210 | INTEGER :: ji, jj, jk |
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211 | REAL(wp) :: zfactfe,zfactsi,zfactch, zfactn, zfactp, zcompadi |
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212 | REAL(wp) :: zrespp2, ztortp2, zmortp2 |
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213 | REAL(wp) :: zlim2, zlim1 |
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214 | CHARACTER (len=25) :: charout |
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215 | !!--------------------------------------------------------------------- |
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216 | ! |
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217 | IF( ln_timing ) CALL timing_start('p5z_mort_diat') |
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218 | ! |
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219 | |
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220 | DO jk = 1, jpkm1 |
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221 | DO jj = 1, jpj |
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222 | DO ji = 1, jpi |
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223 | |
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224 | zcompadi = MAX( ( trb(ji,jj,jk,jpdia) - 1E-9), 0. ) |
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225 | |
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226 | ! Aggregation term for diatoms is increased in case of nutrient |
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227 | ! stress as observed in reality. The stressed cells become more |
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228 | ! sticky and coagulate to sink quickly out of the euphotic zone |
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229 | ! ------------------------------------------------------------- |
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230 | ! Phytoplankton squared mortality |
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231 | ! ------------------------------- |
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232 | zlim2 = xlimdia(ji,jj,jk) * xlimdia(ji,jj,jk) |
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233 | zlim1 = 0.25 * ( 1. - zlim2 ) / ( 0.25 + zlim2 ) |
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234 | zrespp2 = 1.e6 * xstep * wchld * zlim1 * xdiss(ji,jj,jk) * zcompadi * trb(ji,jj,jk,jpdia) |
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235 | |
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236 | ! Phytoplankton linear mortality |
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237 | ! A michaelis-menten like term is introduced to avoid |
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238 | ! extinction of diatoms in highly limited areas |
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239 | ! --------------------------------------------------- |
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240 | ztortp2 = mpratd * xstep * zcompadi * trb(ji,jj,jk,jpdia) / ( xkmort + trb(ji,jj,jk,jpdia) ) |
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241 | zmortp2 = zrespp2 + ztortp2 |
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242 | |
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243 | ! Update the arrays tra which contains the biological sources and sinks |
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244 | ! --------------------------------------------------------------------- |
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245 | zfactn = trb(ji,jj,jk,jpndi) / ( trb(ji,jj,jk,jpdia) + rtrn ) |
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246 | zfactp = trb(ji,jj,jk,jppdi) / ( trb(ji,jj,jk,jpdia) + rtrn ) |
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247 | zfactch = trb(ji,jj,jk,jpdch) / ( trb(ji,jj,jk,jpdia) + rtrn ) |
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248 | zfactfe = trb(ji,jj,jk,jpdfe) / ( trb(ji,jj,jk,jpdia) + rtrn ) |
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249 | zfactsi = trb(ji,jj,jk,jpdsi) / ( trb(ji,jj,jk,jpdia) + rtrn ) |
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250 | tra(ji,jj,jk,jpdia) = tra(ji,jj,jk,jpdia) - zmortp2 |
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251 | tra(ji,jj,jk,jpndi) = tra(ji,jj,jk,jpndi) - zmortp2 * zfactn |
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252 | tra(ji,jj,jk,jppdi) = tra(ji,jj,jk,jppdi) - zmortp2 * zfactp |
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253 | tra(ji,jj,jk,jpdch) = tra(ji,jj,jk,jpdch) - zmortp2 * zfactch |
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254 | tra(ji,jj,jk,jpdfe) = tra(ji,jj,jk,jpdfe) - zmortp2 * zfactfe |
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255 | tra(ji,jj,jk,jpdsi) = tra(ji,jj,jk,jpdsi) - zmortp2 * zfactsi |
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256 | tra(ji,jj,jk,jpgsi) = tra(ji,jj,jk,jpgsi) + zmortp2 * zfactsi |
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257 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zrespp2 |
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258 | tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zrespp2 * zfactn |
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259 | tra(ji,jj,jk,jpgop) = tra(ji,jj,jk,jpgop) + zrespp2 * zfactp |
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260 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zrespp2 * zfactfe |
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261 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + ztortp2 |
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262 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) + ztortp2 * zfactn |
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263 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) + ztortp2 * zfactp |
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264 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) + ztortp2 * zfactfe |
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265 | prodpoc(ji,jj,jk) = prodpoc(ji,jj,jk) + ztortp2 |
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266 | prodgoc(ji,jj,jk) = prodgoc(ji,jj,jk) + zrespp2 |
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267 | END DO |
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268 | END DO |
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269 | END DO |
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270 | ! |
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271 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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272 | WRITE(charout, FMT="('diat')") |
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273 | CALL prt_ctl_trc_info(charout) |
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274 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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275 | ENDIF |
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276 | ! |
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277 | IF( ln_timing ) CALL timing_stop('p5z_mort_diat') |
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278 | ! |
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279 | END SUBROUTINE p5z_mort_diat |
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280 | |
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281 | |
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282 | SUBROUTINE p5z_mort_init |
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283 | !!---------------------------------------------------------------------- |
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284 | !! *** ROUTINE p5z_mort_init *** |
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285 | !! |
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286 | !! ** Purpose : Initialization of phytoplankton mortality parameters |
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287 | !! |
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288 | !! ** Method : Read the namp5zmort namelist and check the parameters |
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289 | !! called at the first timestep |
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290 | !! |
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291 | !! ** input : Namelist namp5zmort |
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292 | !! |
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293 | !!---------------------------------------------------------------------- |
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294 | INTEGER :: ios ! Local integer output status for namelist read |
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295 | !! |
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296 | NAMELIST/namp5zmort/ wchln, wchlp, wchld, mpratn, mpratp, mpratd |
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297 | !!---------------------------------------------------------------------- |
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298 | |
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299 | REWIND( numnatp_ref ) ! Namelist namp5zmort in reference namelist : Pisces phytoplankton |
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300 | READ ( numnatp_ref, namp5zmort, IOSTAT = ios, ERR = 901) |
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301 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namp5zmort in reference namelist' ) |
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302 | |
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303 | REWIND( numnatp_cfg ) ! Namelist namp5zmort in configuration namelist : Pisces phytoplankton |
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304 | READ ( numnatp_cfg, namp5zmort, IOSTAT = ios, ERR = 902 ) |
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305 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namp5zmort in configuration namelist' ) |
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306 | IF(lwm) WRITE ( numonp, namp5zmort ) |
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307 | |
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308 | IF(lwp) THEN ! control print |
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309 | WRITE(numout,*) ' ' |
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310 | WRITE(numout,*) ' Namelist parameters for phytoplankton mortality, namp5zmort' |
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311 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~' |
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312 | WRITE(numout,*) ' quadratic mortality of phytoplankton wchln =', wchln |
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313 | WRITE(numout,*) ' quadratic mortality of picophyto. wchlp =', wchlp |
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314 | WRITE(numout,*) ' quadratic mortality of diatoms wchld =', wchld |
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315 | WRITE(numout,*) ' nanophyto. mortality rate mpratn =', mpratn |
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316 | WRITE(numout,*) ' picophyto. mortality rate mpratp =', mpratp |
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317 | WRITE(numout,*) ' Diatoms mortality rate mpratd =', mpratd |
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318 | ENDIF |
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319 | |
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320 | END SUBROUTINE p5z_mort_init |
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321 | |
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322 | !!====================================================================== |
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323 | END MODULE p5zmort |
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