1 | MODULE p5zsink |
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2 | !!====================================================================== |
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3 | !! *** MODULE p5zsink *** |
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4 | !! TOP : PISCES vertical flux of particulate matter due to gravitational sinking |
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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 | !! 3.4 ! 2011-06 (O. Aumont, C. Ethe) Change aggregation formula |
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9 | !! 3.5 ! 2012-07 (O. Aumont) Introduce potential time-splitting |
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10 | !! 3.6 ! 2015-05 (O. Aumont) PISCES quota |
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11 | !!---------------------------------------------------------------------- |
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12 | #if defined key_pisces_quota |
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13 | !!---------------------------------------------------------------------- |
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14 | !! p5z_sink : Compute vertical flux of particulate matter due to gravitational sinking |
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15 | !! p5z_sink_init : Unitialisation of sinking speed parameters |
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16 | !! p5z_sink_alloc : Allocate sinking speed variables |
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17 | !!---------------------------------------------------------------------- |
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18 | USE oce_trc ! shared variables between ocean and passive tracers |
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19 | USE trc ! passive tracers common variables |
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20 | USE sms_pisces ! PISCES Source Minus Sink variables |
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21 | USE prtctl_trc ! print control for debugging |
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22 | USE iom ! I/O manager |
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23 | USE lib_mpp |
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24 | |
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25 | IMPLICIT NONE |
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26 | PRIVATE |
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27 | |
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28 | PUBLIC p5z_sink ! called in p5zbio.F90 |
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29 | PUBLIC p5z_sink_init ! called in trcsms_pisces.F90 |
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30 | PUBLIC p5z_sink_alloc |
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31 | |
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32 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: wsbio3 !: POC sinking speed |
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33 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: wsbio4 !: GOC sinking speed |
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34 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: wscal !: Calcite and BSi sinking speeds |
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35 | |
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36 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinking, sinking2 !: POC sinking fluxes |
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37 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkingn, sinking2n !: POC sinking fluxes |
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38 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkingp, sinking2p !: POC sinking fluxes |
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39 | ! ! (different meanings depending on the parameterization) |
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40 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkcal, sinksil !: CaCO3 and BSi sinking fluxes |
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41 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkfer !: Small BFe sinking fluxes |
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42 | #if ! defined key_kriest |
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43 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sinkfer2 !: Big iron sinking fluxes |
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44 | #endif |
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45 | |
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46 | INTEGER :: iksed = 10 |
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47 | |
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48 | #if defined key_kriest |
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49 | REAL(wp) :: xkr_sfact !: Sinking factor |
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50 | REAL(wp) :: xkr_stick !: Stickiness |
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51 | REAL(wp) :: xkr_nnano !: Nbr of cell in nano size class |
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52 | REAL(wp) :: xkr_ndiat !: Nbr of cell in diatoms size class |
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53 | REAL(wp) :: xkr_nmicro !: Nbr of cell in microzoo size class |
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54 | REAL(wp) :: xkr_nmeso !: Nbr of cell in mesozoo size class |
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55 | REAL(wp) :: xkr_naggr !: Nbr of cell in aggregates size class |
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56 | |
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57 | REAL(wp) :: xkr_frac |
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58 | |
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59 | REAL(wp), PUBLIC :: xkr_dnano !: Size of particles in nano pool |
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60 | REAL(wp), PUBLIC :: xkr_ddiat !: Size of particles in diatoms pool |
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61 | REAL(wp), PUBLIC :: xkr_dmicro !: Size of particles in microzoo pool |
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62 | REAL(wp), PUBLIC :: xkr_dmeso !: Size of particles in mesozoo pool |
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63 | REAL(wp), PUBLIC :: xkr_daggr !: Size of particles in aggregates pool |
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64 | REAL(wp), PUBLIC :: xkr_wsbio_min !: min vertical particle speed |
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65 | REAL(wp), PUBLIC :: xkr_wsbio_max !: max vertical particle speed |
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66 | |
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67 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: xnumm !: maximum number of particles in aggregates |
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68 | #endif |
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69 | |
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70 | !!* Substitution |
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71 | # include "top_substitute.h90" |
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72 | !!---------------------------------------------------------------------- |
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73 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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74 | !! $Id: p4zsink.F90 3160 2011-11-20 14:27:18Z cetlod $ |
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75 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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76 | !!---------------------------------------------------------------------- |
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77 | CONTAINS |
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78 | |
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79 | #if ! defined key_kriest |
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80 | !!---------------------------------------------------------------------- |
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81 | !! 'standard sinking parameterisation' ??? |
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82 | !!---------------------------------------------------------------------- |
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83 | |
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84 | SUBROUTINE p5z_sink ( kt, jnt ) |
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85 | !!--------------------------------------------------------------------- |
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86 | !! *** ROUTINE p5z_sink *** |
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87 | !! |
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88 | !! ** Purpose : Compute vertical flux of particulate matter due to |
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89 | !! gravitational sinking |
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90 | !! |
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91 | !! ** Method : - ??? |
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92 | !!--------------------------------------------------------------------- |
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93 | INTEGER, INTENT(in) :: kt, jnt |
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94 | INTEGER :: ji, jj, jk, jit |
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95 | INTEGER :: iiter1, iiter2 |
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96 | REAL(wp) :: zaggpoc1, zaggpoc2, zaggpoc3, zaggpoc4 |
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97 | REAL(wp) :: zaggpoc , zaggfe, zaggdoc, zaggdoc2, zaggdoc3 |
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98 | REAL(wp) :: zaggpon , zaggdon, zaggdon2, zaggdon3 |
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99 | REAL(wp) :: zaggpop, zaggdop, zaggdop2, zaggdop3 |
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100 | REAL(wp) :: zaggtmp, zfact, zwsmax, zmax, zstep |
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101 | REAL(wp) :: zrfact2 |
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102 | INTEGER :: ik1 |
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103 | CHARACTER (len=25) :: charout |
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104 | !!--------------------------------------------------------------------- |
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105 | ! |
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106 | IF( nn_timing == 1 ) CALL timing_start('p5z_sink') |
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107 | ! |
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108 | ! Sinking speeds of detritus is increased with depth as shown |
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109 | ! by data and from the coagulation theory |
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110 | ! ----------------------------------------------------------- |
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111 | DO jk = 1, jpkm1 |
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112 | DO jj = 1, jpj |
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113 | DO ji = 1,jpi |
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114 | zmax = MAX( heup_01(ji,jj), hmld(ji,jj) ) |
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115 | zfact = MAX( 0., fsdepw(ji,jj,jk+1) - zmax ) / 5000._wp |
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116 | wsbio4(ji,jj,jk) = wsbio2 |
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117 | END DO |
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118 | END DO |
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119 | END DO |
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120 | |
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121 | ! limit the values of the sinking speeds to avoid numerical instabilities |
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122 | wsbio3(:,:,:) = wsbio |
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123 | wscal(:,:,:) = wsbio4(:,:,:) |
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124 | ! |
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125 | ! OA This is (I hope) a temporary solution for the problem that may |
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126 | ! OA arise in specific situation where the CFL criterion is broken |
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127 | ! OA for vertical sedimentation of particles. To avoid this, a time |
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128 | ! OA splitting algorithm has been coded. A specific maximum |
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129 | ! OA iteration number is provided and may be specified in the namelist |
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130 | ! OA This is to avoid very large iteration number when explicit free |
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131 | ! OA surface is used (for instance). When niter?max is set to 1, |
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132 | ! OA this computation is skipped. The crude old threshold method is |
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133 | ! OA then applied. This also happens when niter exceeds nitermax. |
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134 | IF( MAX( niter1max, niter2max ) == 1 ) THEN |
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135 | iiter1 = 1 |
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136 | iiter2 = 1 |
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137 | ELSE |
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138 | iiter1 = 1 |
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139 | iiter2 = 1 |
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140 | DO jk = 1, jpkm1 |
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141 | DO jj = 1, jpj |
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142 | DO ji = 1, jpi |
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143 | IF( tmask(ji,jj,jk) == 1) THEN |
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144 | zwsmax = 0.5 * fse3t(ji,jj,jk) / xstep |
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145 | iiter1 = MAX( iiter1, INT( wsbio3(ji,jj,jk) / zwsmax ) ) |
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146 | iiter2 = MAX( iiter2, INT( wsbio4(ji,jj,jk) / zwsmax ) ) |
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147 | ENDIF |
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148 | END DO |
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149 | END DO |
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150 | END DO |
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151 | IF( lk_mpp ) THEN |
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152 | CALL mpp_max( iiter1 ) |
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153 | CALL mpp_max( iiter2 ) |
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154 | ENDIF |
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155 | iiter1 = MIN( iiter1, niter1max ) |
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156 | iiter2 = MIN( iiter2, niter2max ) |
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157 | ENDIF |
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158 | |
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159 | DO jk = 1,jpkm1 |
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160 | DO jj = 1, jpj |
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161 | DO ji = 1, jpi |
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162 | IF( tmask(ji,jj,jk) == 1 ) THEN |
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163 | zwsmax = 0.5 * fse3t(ji,jj,jk) / xstep |
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164 | wsbio3(ji,jj,jk) = MIN( wsbio3(ji,jj,jk), zwsmax * FLOAT( iiter1 ) ) |
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165 | wsbio4(ji,jj,jk) = MIN( wsbio4(ji,jj,jk), zwsmax * FLOAT( iiter2 ) ) |
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166 | ENDIF |
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167 | END DO |
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168 | END DO |
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169 | END DO |
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170 | |
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171 | ! Initializa to zero all the sinking arrays |
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172 | ! ----------------------------------------- |
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173 | sinking (:,:,:) = 0.e0 |
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174 | sinking2(:,:,:) = 0.e0 |
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175 | sinkingn (:,:,:) = 0.e0 |
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176 | sinking2n(:,:,:) = 0.e0 |
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177 | sinkingp (:,:,:) = 0.e0 |
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178 | sinking2p(:,:,:) = 0.e0 |
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179 | sinkcal (:,:,:) = 0.e0 |
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180 | sinkfer (:,:,:) = 0.e0 |
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181 | sinksil (:,:,:) = 0.e0 |
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182 | sinkfer2(:,:,:) = 0.e0 |
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183 | |
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184 | ! Compute the sedimentation term using p4zsink2 for all the sinking particles |
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185 | ! ----------------------------------------------------- |
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186 | DO jit = 1, iiter1 |
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187 | CALL p4z_sink2( wsbio3, sinking , jppoc, iiter1 ) |
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188 | CALL p4z_sink2( wsbio3, sinkingn , jppon, iiter1 ) |
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189 | CALL p4z_sink2( wsbio3, sinkingp , jppop, iiter1 ) |
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190 | CALL p4z_sink2( wsbio3, sinkfer , jpsfe, iiter1 ) |
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191 | END DO |
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192 | |
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193 | DO jit = 1, iiter2 |
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194 | CALL p4z_sink2( wsbio4, sinking2, jpgoc, iiter2 ) |
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195 | CALL p4z_sink2( wsbio4, sinking2n, jpgon, iiter2 ) |
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196 | CALL p4z_sink2( wsbio4, sinking2p, jpgop, iiter2 ) |
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197 | CALL p4z_sink2( wsbio4, sinkfer2, jpbfe, iiter2 ) |
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198 | CALL p4z_sink2( wscal , sinksil , jpgsi, iiter2 ) |
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199 | CALL p4z_sink2( wscal , sinkcal , jpcal, iiter2 ) |
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200 | END DO |
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201 | |
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202 | ! Exchange between organic matter compartments due to coagulation/disaggregation |
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203 | ! --------------------------------------------------- |
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204 | DO jk = 1, jpkm1 |
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205 | DO jj = 1, jpj |
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206 | DO ji = 1, jpi |
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207 | ! |
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208 | zstep = xstep |
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209 | # if defined key_degrad |
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210 | zstep = zstep * facvol(ji,jj,jk) |
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211 | # endif |
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212 | zfact = zstep * xdiss(ji,jj,jk) |
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213 | ! Part I : Coagulation dependent on turbulence |
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214 | zaggtmp = 25.9 * zfact * trn(ji,jj,jk,jppoc) |
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215 | zaggpoc1 = zaggtmp * trn(ji,jj,jk,jppoc) |
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216 | zaggtmp = 4452. * zfact * trn(ji,jj,jk,jpgoc) |
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217 | zaggpoc2 = zaggtmp * trn(ji,jj,jk,jppoc) |
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218 | |
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219 | ! Part II : Differential settling |
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220 | |
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221 | ! Aggregation of small into large particles |
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222 | zaggtmp = 47.1 * zstep * trn(ji,jj,jk,jpgoc) |
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223 | zaggpoc3 = zaggtmp * trn(ji,jj,jk,jppoc) |
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224 | zaggtmp = 3.3 * zstep * trn(ji,jj,jk,jppoc) |
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225 | zaggpoc4 = zaggtmp * trn(ji,jj,jk,jppoc) |
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226 | |
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227 | zaggpoc = zaggpoc1 + zaggpoc2 + zaggpoc3 + zaggpoc4 |
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228 | zaggpon = zaggpoc * trn(ji,jj,jk,jppon) / ( trn(ji,jj,jk,jppoc) + rtrn) |
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229 | zaggpop = zaggpoc * trn(ji,jj,jk,jppop) / ( trn(ji,jj,jk,jppoc) + rtrn) |
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230 | zaggfe = zaggpoc * trn(ji,jj,jk,jpsfe) / ( trn(ji,jj,jk,jppoc) + rtrn ) |
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231 | |
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232 | ! Aggregation of DOC to POC : |
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233 | ! 1st term is shear aggregation of DOC-DOC |
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234 | ! 2nd term is shear aggregation of DOC-POC |
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235 | ! 3rd term is differential settling of DOC-POC |
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236 | zaggtmp = ( ( 0.369 * 0.3 * trn(ji,jj,jk,jpdoc) + 102.4 * trn(ji,jj,jk,jppoc) ) * zfact & |
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237 | & + 2.4 * zstep * trn(ji,jj,jk,jppoc) ) |
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238 | zaggdoc = zaggtmp * 0.3 * trn(ji,jj,jk,jpdoc) |
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239 | zaggdon = zaggtmp * 0.3 * trn(ji,jj,jk,jpdon) |
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240 | zaggdop = zaggtmp * 0.3 * trn(ji,jj,jk,jpdop) |
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241 | |
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242 | ! transfer of DOC to GOC : |
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243 | ! 1st term is shear aggregation |
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244 | ! 2nd term is differential settling |
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245 | zaggtmp = ( 3.53E3 * zfact + 0.1 * zstep ) * trn(ji,jj,jk,jpgoc) |
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246 | zaggdoc2 = zaggtmp * 0.3 * trn(ji,jj,jk,jpdoc) |
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247 | zaggdon2 = zaggtmp * 0.3 * trn(ji,jj,jk,jpdon) |
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248 | zaggdop2 = zaggtmp * 0.3 * trn(ji,jj,jk,jpdop) |
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249 | |
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250 | ! tranfer of DOC to POC due to brownian motion |
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251 | zaggtmp = ( 5095. * trn(ji,jj,jk,jppoc) + 114. * 0.3 * trn(ji,jj,jk,jpdoc) ) *zstep |
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252 | zaggdoc3 = zaggtmp * 0.3 * trn(ji,jj,jk,jpdoc) |
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253 | zaggdon3 = zaggtmp * 0.3 * trn(ji,jj,jk,jpdon) |
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254 | zaggdop3 = zaggtmp * 0.3 * trn(ji,jj,jk,jpdop) |
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255 | |
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256 | ! Update the trends |
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257 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) - zaggpoc + zaggdoc + zaggdoc3 |
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258 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) - zaggpon + zaggdon + zaggdon3 |
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259 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) - zaggpop + zaggdop + zaggdop3 |
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260 | tra(ji,jj,jk,jpgoc) = tra(ji,jj,jk,jpgoc) + zaggpoc + zaggdoc2 |
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261 | tra(ji,jj,jk,jpgon) = tra(ji,jj,jk,jpgon) + zaggpon + zaggdon2 |
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262 | tra(ji,jj,jk,jpgop) = tra(ji,jj,jk,jpgop) + zaggpop + zaggdop2 |
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263 | tra(ji,jj,jk,jpsfe) = tra(ji,jj,jk,jpsfe) - zaggfe |
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264 | tra(ji,jj,jk,jpbfe) = tra(ji,jj,jk,jpbfe) + zaggfe |
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265 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc2 - zaggdoc3 |
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266 | tra(ji,jj,jk,jpdon) = tra(ji,jj,jk,jpdon) - zaggdon - zaggdon2 - zaggdon3 |
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267 | tra(ji,jj,jk,jpdop) = tra(ji,jj,jk,jpdop) - zaggdop - zaggdop2 - zaggdop3 |
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268 | ! |
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269 | END DO |
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270 | END DO |
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271 | END DO |
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272 | |
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273 | ! Total primary production per year |
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274 | t_oce_co2_exp = t_oce_co2_exp + glob_sum( ( sinking(:,:,iksed+1) + sinking2(:,:,iksed+1) ) * e1e2t(:,:) * tmask(:,:,1) ) |
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275 | ! |
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276 | IF( ln_diatrc ) THEN |
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277 | zrfact2 = 1.e3 * rfact2r |
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278 | ik1 = iksed + 1 |
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279 | IF( lk_iomput ) THEN |
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280 | IF( jnt == nrdttrc ) THEN |
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281 | CALL iom_put( "EPC100" , ( sinking(:,:,ik1) + sinking2(:,:,ik1) ) * zrfact2 * tmask(:,:,1) ) ! Export of carbon at 100m |
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282 | CALL iom_put( "EPFE100" , ( sinkfer(:,:,ik1) + sinkfer2(:,:,ik1) ) * zrfact2 * tmask(:,:,1) ) ! Export of iron at 100m |
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283 | CALL iom_put( "EPCAL100", sinkcal(:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! Export of calcite at 100m |
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284 | CALL iom_put( "EPSI100" , sinksil(:,:,ik1) * zrfact2 * tmask(:,:,1) ) ! Export of biogenic silica at 100m |
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285 | ENDIF |
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286 | ELSE |
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287 | trc2d(:,:,jp_pcs0_2d + 4) = sinking (:,:,ik1) * zrfact2 * tmask(:,:,1) |
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288 | trc2d(:,:,jp_pcs0_2d + 5) = sinking2(:,:,ik1) * zrfact2 * tmask(:,:,1) |
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289 | trc2d(:,:,jp_pcs0_2d + 6) = sinkfer (:,:,ik1) * zrfact2 * tmask(:,:,1) |
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290 | trc2d(:,:,jp_pcs0_2d + 7) = sinkfer2(:,:,ik1) * zrfact2 * tmask(:,:,1) |
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291 | trc2d(:,:,jp_pcs0_2d + 8) = sinksil (:,:,ik1) * zrfact2 * tmask(:,:,1) |
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292 | trc2d(:,:,jp_pcs0_2d + 9) = sinkcal (:,:,ik1) * zrfact2 * tmask(:,:,1) |
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293 | ENDIF |
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294 | ENDIF |
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295 | ! |
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296 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
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297 | WRITE(charout, FMT="('sink')") |
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298 | CALL prt_ctl_trc_info(charout) |
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299 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
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300 | ENDIF |
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301 | ! |
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302 | IF( nn_timing == 1 ) CALL timing_stop('p5z_sink') |
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303 | ! |
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304 | END SUBROUTINE p5z_sink |
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305 | |
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306 | SUBROUTINE p5z_sink_init |
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307 | !!---------------------------------------------------------------------- |
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308 | !! *** ROUTINE p5z_sink_init *** |
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309 | !!---------------------------------------------------------------------- |
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310 | |
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311 | t_oce_co2_exp = 0._wp |
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312 | ! |
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313 | END SUBROUTINE p5z_sink_init |
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314 | |
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315 | #else |
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316 | !!---------------------------------------------------------------------- |
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317 | !! 'Kriest sinking parameterisation' key_kriest ??? |
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318 | !!---------------------------------------------------------------------- |
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319 | |
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320 | SUBROUTINE p5z_sink ( kt, jnt ) |
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321 | !!--------------------------------------------------------------------- |
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322 | !! *** ROUTINE p5z_sink *** |
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323 | !! |
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324 | !! ** Purpose : Compute vertical flux of particulate matter due to |
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325 | !! gravitational sinking - Kriest parameterization |
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326 | !! |
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327 | !! ** Method : - ??? |
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328 | !!--------------------------------------------------------------------- |
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329 | ! |
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330 | INTEGER, INTENT(in) :: kt, jnt |
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331 | ! |
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332 | INTEGER :: ji, jj, jk, jit, niter1, niter2 |
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333 | REAL(wp) :: zagg1, zagg2, zagg3, zagg4, zagg5, zfract, zaggsi, zaggsh |
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334 | REAL(wp) :: zagg , zaggdoc, zaggdoc1, znumdoc |
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335 | REAL(wp) :: znum , zeps, zfm, zgm, zsm, zfactn, zfactp |
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336 | REAL(wp) :: zdiv , zdiv1, zdiv2, zdiv3, zdiv4, zdiv5 |
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337 | REAL(wp) :: zval1, zval2, zval3, zval4 |
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338 | REAL(wp) :: zrfact2 |
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339 | INTEGER :: ik1 |
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340 | CHARACTER (len=25) :: charout |
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341 | REAL(wp), POINTER, DIMENSION(:,:,:) :: znum3d |
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342 | !!--------------------------------------------------------------------- |
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343 | ! |
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344 | IF( nn_timing == 1 ) CALL timing_start('p5z_sink') |
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345 | ! |
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346 | CALL wrk_alloc( jpi, jpj, jpk, znum3d ) |
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347 | ! |
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348 | ! Initialisation of variables used to compute Sinking Speed |
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349 | ! --------------------------------------------------------- |
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350 | |
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351 | znum3d(:,:,:) = 0.e0 |
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352 | zval1 = 1. + xkr_zeta |
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353 | zval2 = 1. + xkr_zeta + xkr_eta |
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354 | zval3 = 1. + xkr_eta |
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355 | |
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356 | ! Computation of the vertical sinking speed : Kriest et Evans, 2000 |
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357 | ! ----------------------------------------------------------------- |
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358 | |
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359 | DO jk = 1, jpkm1 |
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360 | DO jj = 1, jpj |
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361 | DO ji = 1, jpi |
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362 | IF( tmask(ji,jj,jk) /= 0.e0 ) THEN |
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363 | znum = trn(ji,jj,jk,jppoc) / ( trn(ji,jj,jk,jpnum) + rtrn ) / xkr_massp |
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364 | ! -------------- To avoid sinking speed over 50 m/day ------- |
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365 | znum = MIN( xnumm(jk), znum ) |
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366 | znum = MAX( 1.1 , znum ) |
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367 | znum3d(ji,jj,jk) = znum |
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368 | !------------------------------------------------------------ |
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369 | zeps = ( zval1 * znum - 1. )/ ( znum - 1. ) |
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370 | zfm = xkr_frac**( 1. - zeps ) |
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371 | zgm = xkr_frac**( zval1 - zeps ) |
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372 | zdiv = MAX( 1.e-4, ABS( zeps - zval2 ) ) * SIGN( 1., ( zeps - zval2 ) ) |
---|
373 | zdiv1 = zeps - zval3 |
---|
374 | wsbio3(ji,jj,jk) = xkr_wsbio_min * ( zeps - zval1 ) / zdiv & |
---|
375 | & - xkr_wsbio_max * zgm * xkr_eta / zdiv |
---|
376 | wsbio4(ji,jj,jk) = xkr_wsbio_min * ( zeps-1. ) / zdiv1 & |
---|
377 | & - xkr_wsbio_max * zfm * xkr_eta / zdiv1 |
---|
378 | IF( znum == 1.1) wsbio3(ji,jj,jk) = wsbio4(ji,jj,jk) |
---|
379 | ENDIF |
---|
380 | END DO |
---|
381 | END DO |
---|
382 | END DO |
---|
383 | |
---|
384 | wscal(:,:,:) = MAX( wsbio3(:,:,:), 30._wp ) |
---|
385 | |
---|
386 | ! INITIALIZE TO ZERO ALL THE SINKING ARRAYS |
---|
387 | ! ----------------------------------------- |
---|
388 | |
---|
389 | sinking (:,:,:) = 0.e0 |
---|
390 | sinkingn(:,:,:) = 0.e0 |
---|
391 | sinkingp(:,:,:) = 0.e0 |
---|
392 | sinking2(:,:,:) = 0.e0 |
---|
393 | sinkcal (:,:,:) = 0.e0 |
---|
394 | sinkfer (:,:,:) = 0.e0 |
---|
395 | sinksil (:,:,:) = 0.e0 |
---|
396 | |
---|
397 | ! Compute the sedimentation term using p4zsink2 for all the sinking particles |
---|
398 | ! ----------------------------------------------------- |
---|
399 | |
---|
400 | niter1 = niter1max |
---|
401 | niter2 = niter2max |
---|
402 | |
---|
403 | DO jit = 1, niter1 |
---|
404 | CALL p4z_sink2( wsbio3, sinking , jppoc, niter1 ) |
---|
405 | CALL p4z_sink2( wsbio3, sinkingn, jppon, niter1 ) |
---|
406 | CALL p4z_sink2( wsbio3, sinkingp, jppop, niter1 ) |
---|
407 | CALL p4z_sink2( wsbio3, sinkfer , jpsfe, niter1 ) |
---|
408 | CALL p4z_sink2( wscal , sinksil , jpgsi, niter1 ) |
---|
409 | CALL p4z_sink2( wscal , sinkcal , jpcal, niter1 ) |
---|
410 | END DO |
---|
411 | |
---|
412 | DO jit = 1, niter2 |
---|
413 | CALL p4z_sink2( wsbio4, sinking2, jpnum, niter2 ) |
---|
414 | END DO |
---|
415 | |
---|
416 | ! Exchange between organic matter compartments due to coagulation/disaggregation |
---|
417 | ! --------------------------------------------------- |
---|
418 | |
---|
419 | zval1 = 1. + xkr_zeta |
---|
420 | zval2 = 1. + xkr_eta |
---|
421 | zval3 = 3. + xkr_eta |
---|
422 | zval4 = 4. + xkr_eta |
---|
423 | |
---|
424 | DO jk = 1,jpkm1 |
---|
425 | DO jj = 1,jpj |
---|
426 | DO ji = 1,jpi |
---|
427 | IF( tmask(ji,jj,jk) /= 0.e0 ) THEN |
---|
428 | |
---|
429 | znum = trn(ji,jj,jk,jppoc)/(trn(ji,jj,jk,jpnum)+rtrn) / xkr_massp |
---|
430 | !-------------- To avoid sinking speed over 50 m/day ------- |
---|
431 | znum = min(xnumm(jk),znum) |
---|
432 | znum = MAX( 1.1,znum) |
---|
433 | !------------------------------------------------------------ |
---|
434 | zeps = ( zval1 * znum - 1.) / ( znum - 1.) |
---|
435 | zdiv = MAX( 1.e-4, ABS( zeps - zval3) ) * SIGN( 1., zeps - zval3 ) |
---|
436 | zdiv1 = MAX( 1.e-4, ABS( zeps - 4. ) ) * SIGN( 1., zeps - 4. ) |
---|
437 | zdiv2 = zeps - 2. |
---|
438 | zdiv3 = zeps - 3. |
---|
439 | zdiv4 = zeps - zval2 |
---|
440 | zdiv5 = 2.* zeps - zval4 |
---|
441 | zfm = xkr_frac**( 1.- zeps ) |
---|
442 | zsm = xkr_frac**xkr_eta |
---|
443 | |
---|
444 | ! Part I : Coagulation dependant on turbulence |
---|
445 | ! ---------------------------------------------- |
---|
446 | zagg1 = 0.163 * trn(ji,jj,jk,jpnum)**2 & |
---|
447 | & * 2.*( (zfm-1.)*(zfm*xkr_mass_max**3-xkr_mass_min**3) & |
---|
448 | & * (zeps-1)/zdiv1 + 3.*(zfm*xkr_mass_max-xkr_mass_min) & |
---|
449 | & * (zfm*xkr_mass_max**2-xkr_mass_min**2) & |
---|
450 | & * (zeps-1.)**2/(zdiv2*zdiv3)) |
---|
451 | zagg2 = 2*0.163*trn(ji,jj,jk,jpnum)**2*zfm & |
---|
452 | & * ((xkr_mass_max**3+3.*(xkr_mass_max**2 & |
---|
453 | & * xkr_mass_min*(zeps-1.)/zdiv2 & |
---|
454 | & + xkr_mass_max*xkr_mass_min**2*(zeps-1.)/zdiv3) & |
---|
455 | & + xkr_mass_min**3*(zeps-1)/zdiv1) & |
---|
456 | & - zfm*xkr_mass_max**3*(1.+3.*((zeps-1.) & |
---|
457 | & / (zeps-2.)+(zeps-1.)/zdiv3)+(zeps-1.)/zdiv1)) |
---|
458 | |
---|
459 | zagg3 = 0.163*trn(ji,jj,jk,jpnum)**2*zfm**2*8. * xkr_mass_max**3 |
---|
460 | |
---|
461 | ! Aggregation of small into large particles |
---|
462 | ! Part II : Differential settling |
---|
463 | ! ---------------------------------------------- |
---|
464 | zagg4 = 2.*3.141*0.125*trn(ji,jj,jk,jpnum)**2* & |
---|
465 | & xkr_wsbio_min*(zeps-1.)**2 & |
---|
466 | & *(xkr_mass_min**2*((1.-zsm*zfm)/(zdiv3*zdiv4) & |
---|
467 | & -(1.-zfm)/(zdiv*(zeps-1.)))- & |
---|
468 | & ((zfm*zfm*xkr_mass_max**2*zsm-xkr_mass_min**2) & |
---|
469 | & *xkr_eta)/(zdiv*zdiv3*zdiv5) ) |
---|
470 | |
---|
471 | zagg5 = 2.*3.141*0.125*trn(ji,jj,jk,jpnum)**2 & |
---|
472 | & *(zeps-1.)*zfm*xkr_wsbio_min & |
---|
473 | & *(zsm*(xkr_mass_min**2-zfm*xkr_mass_max**2) & |
---|
474 | & /zdiv3-(xkr_mass_min**2-zfm*zsm*xkr_mass_max**2) & |
---|
475 | & /zdiv) |
---|
476 | |
---|
477 | ! |
---|
478 | ! Fractionnation by swimming organisms |
---|
479 | ! ------------------------------------ |
---|
480 | zfract = 2.*3.141*0.125*trn(ji,jj,jk,jpmes)*12./0.12/0.06**3*trn(ji,jj,jk,jpnum) & |
---|
481 | & * (0.01/xkr_mass_min)**(1.-zeps)*0.1**2 & |
---|
482 | & * 10000.*xstep |
---|
483 | |
---|
484 | ! Aggregation of DOC to small particles |
---|
485 | ! -------------------------------------- |
---|
486 | zaggdoc = 0.83 * trn(ji,jj,jk,jpdoc) * xstep * xdiss(ji,jj,jk) * trn(ji,jj,jk,jpdoc) & |
---|
487 | & + 0.005 * 231. * trn(ji,jj,jk,jpdoc) * xstep * trn(ji,jj,jk,jpdoc) |
---|
488 | zaggdoc1 = 271. * trn(ji,jj,jk,jppoc) * xstep * xdiss(ji,jj,jk) * trn(ji,jj,jk,jpdoc) & |
---|
489 | & + 0.02 * 16706. * trn(ji,jj,jk,jppoc) * xstep * trn(ji,jj,jk,jpdoc) |
---|
490 | |
---|
491 | # if defined key_degrad |
---|
492 | zagg1 = zagg1 * facvol(ji,jj,jk) |
---|
493 | zagg2 = zagg2 * facvol(ji,jj,jk) |
---|
494 | zagg3 = zagg3 * facvol(ji,jj,jk) |
---|
495 | zagg4 = zagg4 * facvol(ji,jj,jk) |
---|
496 | zagg5 = zagg5 * facvol(ji,jj,jk) |
---|
497 | zaggdoc = zaggdoc * facvol(ji,jj,jk) |
---|
498 | zaggdoc1 = zaggdoc1 * facvol(ji,jj,jk) |
---|
499 | # endif |
---|
500 | zaggsh = ( zagg1 + zagg2 + zagg3 ) * rfact2 * xdiss(ji,jj,jk) / 1000. |
---|
501 | zaggsi = ( zagg4 + zagg5 ) * xstep / 10. |
---|
502 | zagg = 0.5 * xkr_stick * ( zaggsh + zaggsi ) |
---|
503 | ! |
---|
504 | znumdoc = trn(ji,jj,jk,jpnum) / ( trn(ji,jj,jk,jppoc) + rtrn ) |
---|
505 | tra(ji,jj,jk,jppoc) = tra(ji,jj,jk,jppoc) + zaggdoc + zaggdoc1 |
---|
506 | zfactn = trn(ji,jj,jk,jpdon) / ( trn(ji,jj,jk,jpdoc) + rtrn ) |
---|
507 | tra(ji,jj,jk,jppon) = tra(ji,jj,jk,jppon) + ( zaggdoc + zaggdoc1 ) * zfactn |
---|
508 | zfactp = trn(ji,jj,jk,jpdop) / ( trn(ji,jj,jk,jpdoc) + rtrn ) |
---|
509 | tra(ji,jj,jk,jppop) = tra(ji,jj,jk,jppop) + ( zaggdoc + zaggdoc1 ) * zfactp |
---|
510 | tra(ji,jj,jk,jpnum) = tra(ji,jj,jk,jpnum) + zfract + zaggdoc / xkr_massp - zagg |
---|
511 | tra(ji,jj,jk,jpdoc) = tra(ji,jj,jk,jpdoc) - zaggdoc - zaggdoc1 |
---|
512 | |
---|
513 | ENDIF |
---|
514 | END DO |
---|
515 | END DO |
---|
516 | END DO |
---|
517 | |
---|
518 | ! Total primary production per year |
---|
519 | t_oce_co2_exp = t_oce_co2_exp + glob_sum( ( sinking(:,:,:) ) * cvol(:,:,:) ) |
---|
520 | ! |
---|
521 | IF( ln_diatrc ) THEN |
---|
522 | ! |
---|
523 | ik1 = iksed + 1 |
---|
524 | zrfact2 = 1.e3 * rfact2r |
---|
525 | IF( jnt == nrdttrc ) THEN |
---|
526 | CALL iom_put( "POCFlx" , sinking (:,:,:) * zrfact2 * tmask(:,:,:) ) ! POC export |
---|
527 | CALL iom_put( "NumFlx" , sinking2 (:,:,:) * zrfact2 * tmask(:,:,:) ) ! Num export |
---|
528 | CALL iom_put( "SiFlx" , sinksil (:,:,:) * zrfact2 * tmask(:,:,:) ) ! Silica export |
---|
529 | CALL iom_put( "CaCO3Flx", sinkcal (:,:,:) * zrfact2 * tmask(:,:,:) ) ! Calcite export |
---|
530 | CALL iom_put( "xnum" , znum3d (:,:,:) * tmask(:,:,:) ) ! Number of particles in aggregats |
---|
531 | CALL iom_put( "W1" , wsbio3 (:,:,:) * tmask(:,:,:) ) ! sinking speed of POC |
---|
532 | CALL iom_put( "W2" , wsbio4 (:,:,:) * tmask(:,:,:) ) ! sinking speed of aggregats |
---|
533 | ENDIF |
---|
534 | # if ! defined key_iomput |
---|
535 | trc2d(:,: ,jp_pcs0_2d + 4) = sinking (:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
536 | trc2d(:,: ,jp_pcs0_2d + 5) = sinking2(:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
537 | trc2d(:,: ,jp_pcs0_2d + 6) = sinkfer (:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
538 | trc2d(:,: ,jp_pcs0_2d + 7) = sinksil (:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
539 | trc2d(:,: ,jp_pcs0_2d + 8) = sinkcal (:,:,ik1) * zrfact2 * tmask(:,:,1) |
---|
540 | trc3d(:,:,:,jp_pcs0_3d + 11) = sinking (:,:,:) * zrfact2 * tmask(:,:,:) |
---|
541 | trc3d(:,:,:,jp_pcs0_3d + 12) = sinking2(:,:,:) * zrfact2 * tmask(:,:,:) |
---|
542 | trc3d(:,:,:,jp_pcs0_3d + 13) = sinksil (:,:,:) * zrfact2 * tmask(:,:,:) |
---|
543 | trc3d(:,:,:,jp_pcs0_3d + 14) = sinkcal (:,:,:) * zrfact2 * tmask(:,:,:) |
---|
544 | trc3d(:,:,:,jp_pcs0_3d + 15) = znum3d (:,:,:) * tmask(:,:,:) |
---|
545 | trc3d(:,:,:,jp_pcs0_3d + 16) = wsbio3 (:,:,:) * tmask(:,:,:) |
---|
546 | trc3d(:,:,:,jp_pcs0_3d + 17) = wsbio4 (:,:,:) * tmask(:,:,:) |
---|
547 | # endif |
---|
548 | ! |
---|
549 | ENDIF |
---|
550 | ! |
---|
551 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
---|
552 | WRITE(charout, FMT="('sink')") |
---|
553 | CALL prt_ctl_trc_info(charout) |
---|
554 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
555 | ENDIF |
---|
556 | ! |
---|
557 | CALL wrk_dealloc( jpi, jpj, jpk, znum3d ) |
---|
558 | ! |
---|
559 | IF( nn_timing == 1 ) CALL timing_stop('p5z_sink') |
---|
560 | ! |
---|
561 | END SUBROUTINE p5z_sink |
---|
562 | |
---|
563 | |
---|
564 | SUBROUTINE p5z_sink_init |
---|
565 | !!---------------------------------------------------------------------- |
---|
566 | !! *** ROUTINE p5z_sink_init *** |
---|
567 | !! |
---|
568 | !! ** Purpose : Initialization of sinking parameters |
---|
569 | !! Kriest parameterization only |
---|
570 | !! |
---|
571 | !! ** Method : Read the nampiskrs namelist and check the parameters |
---|
572 | !! called at the first timestep |
---|
573 | !! |
---|
574 | !! ** input : Namelist nampiskrs |
---|
575 | !!---------------------------------------------------------------------- |
---|
576 | INTEGER :: jk, jn, kiter |
---|
577 | INTEGER :: ios ! Local integer output status for namelist read |
---|
578 | REAL(wp) :: znum, zdiv |
---|
579 | REAL(wp) :: zws, zwr, zwl,wmax, znummax |
---|
580 | REAL(wp) :: zmin, zmax, zl, zr, xacc |
---|
581 | ! |
---|
582 | NAMELIST/nampiskrs/ xkr_sfact, xkr_stick , & |
---|
583 | & xkr_nnano, xkr_ndiat, xkr_nmicro, xkr_nmeso, xkr_naggr |
---|
584 | !!---------------------------------------------------------------------- |
---|
585 | ! |
---|
586 | IF( nn_timing == 1 ) CALL timing_start('p5z_sink_init') |
---|
587 | ! |
---|
588 | |
---|
589 | REWIND( numnatp_ref ) ! Namelist nampiskrs in reference namelist : Pisces sinking Kriest |
---|
590 | READ ( numnatp_ref, nampiskrs, IOSTAT = ios, ERR = 901) |
---|
591 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampiskrs in reference namelist', lwp ) |
---|
592 | |
---|
593 | REWIND( numnatp_cfg ) ! Namelist nampiskrs in configuration namelist : Pisces sinking Kriest |
---|
594 | READ ( numnatp_cfg, nampiskrs, IOSTAT = ios, ERR = 902 ) |
---|
595 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampiskrs in configuration namelist', lwp ) |
---|
596 | IF(lwm) WRITE ( numonp, nampiskrs ) |
---|
597 | |
---|
598 | IF(lwp) THEN |
---|
599 | WRITE(numout,*) |
---|
600 | WRITE(numout,*) ' Namelist : nampiskrs' |
---|
601 | WRITE(numout,*) ' Sinking factor xkr_sfact = ', xkr_sfact |
---|
602 | WRITE(numout,*) ' Stickiness xkr_stick = ', xkr_stick |
---|
603 | WRITE(numout,*) ' Nbr of cell in nano size class xkr_nnano = ', xkr_nnano |
---|
604 | WRITE(numout,*) ' Nbr of cell in diatoms size class xkr_ndiat = ', xkr_ndiat |
---|
605 | WRITE(numout,*) ' Nbr of cell in microzoo size class xkr_nmicro = ', xkr_nmicro |
---|
606 | WRITE(numout,*) ' Nbr of cell in mesozoo size class xkr_nmeso = ', xkr_nmeso |
---|
607 | WRITE(numout,*) ' Nbr of cell in aggregates size class xkr_naggr = ', xkr_naggr |
---|
608 | ENDIF |
---|
609 | |
---|
610 | |
---|
611 | ! max and min vertical particle speed |
---|
612 | xkr_wsbio_min = xkr_sfact * xkr_mass_min**xkr_eta |
---|
613 | xkr_wsbio_max = xkr_sfact * xkr_mass_max**xkr_eta |
---|
614 | IF (lwp) WRITE(numout,*) ' max and min vertical particle speed ', xkr_wsbio_min, xkr_wsbio_max |
---|
615 | |
---|
616 | ! |
---|
617 | ! effect of the sizes of the different living pools on particle numbers |
---|
618 | ! nano = 2um-20um -> mean size=6.32 um -> ws=2.596 -> xnum=xnnano=2.337 |
---|
619 | ! diat and microzoo = 10um-200um -> 44.7 -> 8.732 -> xnum=xndiat=3.718 |
---|
620 | ! mesozoo = 200um-2mm -> 632.45 -> 45.14 -> xnum=xnmeso=7.147 |
---|
621 | ! aggregates = 200um-10mm -> 1414 -> 74.34 -> xnum=xnaggr=9.877 |
---|
622 | ! doc aggregates = 1um |
---|
623 | ! ---------------------------------------------------------- |
---|
624 | |
---|
625 | xkr_dnano = 1. / ( xkr_massp * xkr_nnano ) |
---|
626 | xkr_ddiat = 1. / ( xkr_massp * xkr_ndiat ) |
---|
627 | xkr_dmicro = 1. / ( xkr_massp * xkr_nmicro ) |
---|
628 | xkr_dmeso = 1. / ( xkr_massp * xkr_nmeso ) |
---|
629 | xkr_daggr = 1. / ( xkr_massp * xkr_naggr ) |
---|
630 | |
---|
631 | !!--------------------------------------------------------------------- |
---|
632 | !! 'key_kriest' ??? |
---|
633 | !!--------------------------------------------------------------------- |
---|
634 | ! COMPUTATION OF THE VERTICAL PROFILE OF MAXIMUM SINKING SPEED |
---|
635 | ! Search of the maximum number of particles in aggregates for each k-level. |
---|
636 | ! Bissection Method |
---|
637 | !-------------------------------------------------------------------- |
---|
638 | IF (lwp) THEN |
---|
639 | WRITE(numout,*) |
---|
640 | WRITE(numout,*)' kriest : Compute maximum number of particles in aggregates' |
---|
641 | ENDIF |
---|
642 | |
---|
643 | xacc = 0.001_wp |
---|
644 | kiter = 50 |
---|
645 | zmin = 1.10_wp |
---|
646 | zmax = xkr_mass_max / xkr_mass_min |
---|
647 | xkr_frac = zmax |
---|
648 | |
---|
649 | DO jk = 1,jpk |
---|
650 | zl = zmin |
---|
651 | zr = zmax |
---|
652 | wmax = 0.5 * fse3t(1,1,jk) * rday * float(niter1max) / rfact2 |
---|
653 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zl |
---|
654 | znum = zl - 1. |
---|
655 | zwl = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
656 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
657 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
658 | & - wmax |
---|
659 | |
---|
660 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zr |
---|
661 | znum = zr - 1. |
---|
662 | zwr = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
663 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
664 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
665 | & - wmax |
---|
666 | iflag: DO jn = 1, kiter |
---|
667 | IF ( zwl == 0._wp ) THEN ; znummax = zl |
---|
668 | ELSEIF( zwr == 0._wp ) THEN ; znummax = zr |
---|
669 | ELSE |
---|
670 | znummax = ( zr + zl ) / 2. |
---|
671 | zdiv = xkr_zeta + xkr_eta - xkr_eta * znummax |
---|
672 | znum = znummax - 1. |
---|
673 | zws = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
674 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
675 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
676 | & - wmax |
---|
677 | IF( zws * zwl < 0. ) THEN ; zr = znummax |
---|
678 | ELSE ; zl = znummax |
---|
679 | ENDIF |
---|
680 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zl |
---|
681 | znum = zl - 1. |
---|
682 | zwl = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
683 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
684 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
685 | & - wmax |
---|
686 | |
---|
687 | zdiv = xkr_zeta + xkr_eta - xkr_eta * zr |
---|
688 | znum = zr - 1. |
---|
689 | zwr = xkr_wsbio_min * xkr_zeta / zdiv & |
---|
690 | & - ( xkr_wsbio_max * xkr_eta * znum * & |
---|
691 | & xkr_frac**( -xkr_zeta / znum ) / zdiv ) & |
---|
692 | & - wmax |
---|
693 | ! |
---|
694 | IF ( ABS ( zws ) <= xacc ) EXIT iflag |
---|
695 | ! |
---|
696 | ENDIF |
---|
697 | ! |
---|
698 | END DO iflag |
---|
699 | |
---|
700 | xnumm(jk) = znummax |
---|
701 | IF (lwp) WRITE(numout,*) ' jk = ', jk, ' wmax = ', wmax,' xnum max = ', xnumm(jk) |
---|
702 | ! |
---|
703 | END DO |
---|
704 | ! |
---|
705 | t_oce_co2_exp = 0._wp |
---|
706 | ! |
---|
707 | IF( nn_timing == 1 ) CALL timing_stop('p5z_sink_init') |
---|
708 | ! |
---|
709 | END SUBROUTINE p5z_sink_init |
---|
710 | |
---|
711 | #endif |
---|
712 | |
---|
713 | SUBROUTINE p4z_sink2( pwsink, psinkflx, jp_tra, kiter ) |
---|
714 | !!--------------------------------------------------------------------- |
---|
715 | !! *** ROUTINE p4z_sink2 *** |
---|
716 | !! |
---|
717 | !! ** Purpose : Compute the sedimentation terms for the various sinking |
---|
718 | !! particles. The scheme used to compute the trends is based |
---|
719 | !! on MUSCL. |
---|
720 | !! |
---|
721 | !! ** Method : - this ROUTINE compute not exactly the advection but the |
---|
722 | !! transport term, i.e. div(u*tra). |
---|
723 | !!--------------------------------------------------------------------- |
---|
724 | ! |
---|
725 | INTEGER , INTENT(in ) :: jp_tra ! tracer index index |
---|
726 | INTEGER , INTENT(in ) :: kiter ! number of iterations for time-splitting |
---|
727 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj,jpk) :: pwsink ! sinking speed |
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728 | REAL(wp), INTENT(inout), DIMENSION(jpi,jpj,jpk) :: psinkflx ! sinking fluxe |
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729 | !! |
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730 | INTEGER :: ji, jj, jk, jn |
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731 | REAL(wp) :: zigma,zew,zign, zflx, zstep |
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732 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ztraz, zakz, zwsink2, ztrb |
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733 | !!--------------------------------------------------------------------- |
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734 | ! |
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735 | IF( nn_timing == 1 ) CALL timing_start('p4z_sink2') |
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736 | ! |
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737 | ! Allocate temporary workspace |
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738 | CALL wrk_alloc( jpi, jpj, jpk, ztraz, zakz, zwsink2, ztrb ) |
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739 | |
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740 | zstep = rfact2 / FLOAT( kiter ) / 2. |
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741 | |
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742 | ztraz(:,:,:) = 0.e0 |
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743 | zakz (:,:,:) = 0.e0 |
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744 | ztrb (:,:,:) = trn(:,:,:,jp_tra) |
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745 | |
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746 | DO jk = 1, jpkm1 |
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747 | zwsink2(:,:,jk+1) = -pwsink(:,:,jk) / rday * tmask(:,:,jk+1) |
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748 | END DO |
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749 | zwsink2(:,:,1) = 0.e0 |
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750 | IF( lk_degrad ) THEN |
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751 | zwsink2(:,:,:) = zwsink2(:,:,:) * facvol(:,:,:) |
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752 | ENDIF |
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753 | |
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754 | |
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755 | ! Vertical advective flux |
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756 | DO jn = 1, 2 |
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757 | ! first guess of the slopes interior values |
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758 | DO jk = 2, jpkm1 |
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759 | ztraz(:,:,jk) = ( trn(:,:,jk-1,jp_tra) - trn(:,:,jk,jp_tra) ) * tmask(:,:,jk) |
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760 | END DO |
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761 | ztraz(:,:,1 ) = 0.0 |
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762 | ztraz(:,:,jpk) = 0.0 |
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763 | |
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764 | ! slopes |
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765 | DO jk = 2, jpkm1 |
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766 | DO jj = 1,jpj |
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767 | DO ji = 1, jpi |
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768 | zign = 0.25 + SIGN( 0.25, ztraz(ji,jj,jk) * ztraz(ji,jj,jk+1) ) |
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769 | zakz(ji,jj,jk) = ( ztraz(ji,jj,jk) + ztraz(ji,jj,jk+1) ) * zign |
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770 | END DO |
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771 | END DO |
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772 | END DO |
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773 | |
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774 | ! Slopes limitation |
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775 | DO jk = 2, jpkm1 |
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776 | DO jj = 1, jpj |
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777 | DO ji = 1, jpi |
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778 | zakz(ji,jj,jk) = SIGN( 1., zakz(ji,jj,jk) ) * & |
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779 | & MIN( ABS( zakz(ji,jj,jk) ), 2. * ABS(ztraz(ji,jj,jk+1)), 2. * ABS(ztraz(ji,jj,jk) ) ) |
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780 | END DO |
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781 | END DO |
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782 | END DO |
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783 | |
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784 | ! vertical advective flux |
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785 | DO jk = 1, jpkm1 |
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786 | DO jj = 1, jpj |
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787 | DO ji = 1, jpi |
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788 | zigma = zwsink2(ji,jj,jk+1) * zstep / fse3w(ji,jj,jk+1) |
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789 | zew = zwsink2(ji,jj,jk+1) |
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790 | psinkflx(ji,jj,jk+1) = -zew * ( trn(ji,jj,jk,jp_tra) - 0.5 * ( 1 + zigma ) * zakz(ji,jj,jk) ) * zstep |
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791 | END DO |
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792 | END DO |
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793 | END DO |
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794 | ! |
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795 | ! Boundary conditions |
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796 | psinkflx(:,:,1 ) = 0.e0 |
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797 | psinkflx(:,:,jpk) = 0.e0 |
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798 | |
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799 | DO jk=1,jpkm1 |
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800 | DO jj = 1,jpj |
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801 | DO ji = 1, jpi |
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802 | zflx = ( psinkflx(ji,jj,jk) - psinkflx(ji,jj,jk+1) ) / fse3t(ji,jj,jk) |
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803 | trn(ji,jj,jk,jp_tra) = trn(ji,jj,jk,jp_tra) + zflx |
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804 | END DO |
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805 | END DO |
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806 | END DO |
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807 | |
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808 | ENDDO |
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809 | |
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810 | DO jk = 1,jpkm1 |
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811 | DO jj = 1,jpj |
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812 | DO ji = 1, jpi |
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813 | zflx = ( psinkflx(ji,jj,jk) - psinkflx(ji,jj,jk+1) ) / fse3t(ji,jj,jk) |
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814 | ztrb(ji,jj,jk) = ztrb(ji,jj,jk) + 2. * zflx |
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815 | END DO |
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816 | END DO |
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817 | END DO |
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818 | |
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819 | trn(:,:,:,jp_tra) = ztrb(:,:,:) |
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820 | psinkflx(:,:,:) = 2. * psinkflx(:,:,:) |
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821 | ! |
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822 | CALL wrk_dealloc( jpi, jpj, jpk, ztraz, zakz, zwsink2, ztrb ) |
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823 | ! |
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824 | IF( nn_timing == 1 ) CALL timing_stop('p4z_sink2') |
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825 | ! |
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826 | END SUBROUTINE p4z_sink2 |
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827 | |
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828 | |
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829 | INTEGER FUNCTION p5z_sink_alloc() |
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830 | !!---------------------------------------------------------------------- |
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831 | !! *** ROUTINE p5z_sink_alloc *** |
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832 | !!---------------------------------------------------------------------- |
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833 | ALLOCATE( wsbio3 (jpi,jpj,jpk) , wsbio4 (jpi,jpj,jpk) , wscal(jpi,jpj,jpk) , & |
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834 | & sinking(jpi,jpj,jpk) , sinking2(jpi,jpj,jpk) , & |
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835 | & sinkingn(jpi,jpj,jpk) , sinking2n(jpi,jpj,jpk) , & |
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836 | & sinkingp(jpi,jpj,jpk) , sinking2p(jpi,jpj,jpk) , & |
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837 | |
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838 | & sinkcal(jpi,jpj,jpk) , sinksil (jpi,jpj,jpk) , & |
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839 | #if defined key_kriest |
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840 | & xnumm(jpk) , & |
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841 | #else |
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842 | & sinkfer2(jpi,jpj,jpk) , & |
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843 | #endif |
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844 | & sinkfer(jpi,jpj,jpk) , STAT=p5z_sink_alloc ) |
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845 | ! |
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846 | IF( p5z_sink_alloc /= 0 ) CALL ctl_warn('p5z_sink_alloc : failed to allocate arrays.') |
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847 | ! |
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848 | END FUNCTION p5z_sink_alloc |
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849 | |
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850 | #else |
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851 | !!====================================================================== |
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852 | !! Dummy module : No PISCES bio-model |
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853 | !!====================================================================== |
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854 | CONTAINS |
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855 | SUBROUTINE p5z_sink ! Empty routine |
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856 | END SUBROUTINE p5z_sink |
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857 | #endif |
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858 | |
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859 | !!====================================================================== |
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860 | END MODULE p5zsink |
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