1 | MODULE traqsr |
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2 | !!====================================================================== |
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3 | !! *** MODULE traqsr *** |
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4 | !! Ocean physics: solar radiation penetration in the top ocean levels |
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5 | !!====================================================================== |
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6 | !! History : OPA ! 1990-10 (B. Blanke) Original code |
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7 | !! 7.0 ! 1991-11 (G. Madec) |
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8 | !! ! 1996-01 (G. Madec) s-coordinates |
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9 | !! NEMO 1.0 ! 2002-06 (G. Madec) F90: Free form and module |
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10 | !! - ! 2005-11 (G. Madec) zco, zps, sco coordinate |
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11 | !! 3.2 ! 2009-04 (G. Madec & NEMO team) |
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12 | !! 3.6 ! 2012-05 (C. Rousset) store attenuation coef for use in ice model |
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13 | !! 3.6 ! 2015-12 (O. Aumont, J. Jouanno, C. Ethe) use vertical profile of chlorophyll |
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14 | !! 3.7 ! 2015-11 (G. Madec, A. Coward) remove optimisation for fix volume |
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15 | !! 4.0 ! 2020-11 (A. Coward) optimisation |
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16 | !! 4.5 ! 2021-03 (G. Madec) further optimisation + adaptation for RK3 |
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17 | !!---------------------------------------------------------------------- |
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18 | |
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19 | !!---------------------------------------------------------------------- |
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20 | !! tra_qsr : temperature trend due to the penetration of solar radiation |
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21 | !! qsr_RGBc : IR + RGB light penetration with Chlorophyll data case |
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22 | !! qsr_RGB : IR + RGB light penetration with constant Chlorophyll case |
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23 | !! qsr_2BD : 2 bands (InfraRed + Visible light) case |
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24 | !! qsr_ext_lev : level of extinction for each bands |
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25 | !! tra_qsr_init : initialization of the qsr penetration |
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26 | !!---------------------------------------------------------------------- |
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27 | USE oce ! ocean dynamics and active tracers |
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28 | USE phycst ! physical constants |
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29 | USE dom_oce ! ocean space and time domain |
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30 | USE domtile |
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31 | USE sbc_oce ! surface boundary condition: ocean |
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32 | USE trc_oce ! share SMS/Ocean variables |
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33 | USE trd_oce ! trends: ocean variables |
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34 | USE trdtra ! trends manager: tracers |
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35 | ! |
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36 | USE in_out_manager ! I/O manager |
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37 | USE prtctl ! Print control |
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38 | USE iom ! I/O library |
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39 | USE fldread ! read input fields |
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40 | USE restart ! ocean restart |
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41 | USE lib_mpp ! MPP library |
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42 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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43 | USE timing ! Timing |
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44 | |
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45 | IMPLICIT NONE |
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46 | PRIVATE |
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47 | |
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48 | PUBLIC tra_qsr ! routine called by step.F90 (ln_traqsr=T) |
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49 | PUBLIC tra_qsr_init ! routine called by nemogcm.F90 |
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50 | |
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51 | ! !!* Namelist namtra_qsr: penetrative solar radiation |
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52 | LOGICAL , PUBLIC :: ln_traqsr !: light absorption (qsr) flag |
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53 | LOGICAL , PUBLIC :: ln_qsr_rgb !: Red-Green-Blue light absorption flag |
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54 | LOGICAL , PUBLIC :: ln_qsr_2bd !: 2 band light absorption flag |
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55 | LOGICAL , PUBLIC :: ln_qsr_bio !: bio-model light absorption flag |
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56 | INTEGER , PUBLIC :: nn_chldta !: use Chlorophyll data (=1) or not (=0) |
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57 | REAL(wp), PUBLIC :: rn_abs !: fraction absorbed in the very near surface (RGB & 2 bands) |
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58 | REAL(wp), PUBLIC :: rn_si0 !: very near surface depth of extinction (RGB & 2 bands) |
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59 | REAL(wp), PUBLIC :: rn_si1 !: deepest depth of extinction (water type I) (2 bands) |
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60 | ! |
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61 | INTEGER, PARAMETER :: np_RGB = 1 ! R-G-B light penetration with constant Chlorophyll |
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62 | INTEGER, PARAMETER :: np_RGBc = 2 ! R-G-B light penetration with Chlorophyll data |
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63 | INTEGER, PARAMETER :: np_2BD = 3 ! 2 bands light penetration |
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64 | INTEGER, PARAMETER :: np_BIO = 4 ! bio-model light penetration |
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65 | ! |
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66 | INTEGER :: nqsr ! user choice of the type of light penetration |
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67 | INTEGER :: nc_rgb ! RGB with cst Chlorophyll: index associated with the chosen Chl value |
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68 | ! |
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69 | ! ! extinction level |
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70 | INTEGER :: nk0 !: IR (depth larger ~12 m) |
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71 | INTEGER :: nkV !: Visible light (depth larger than ~840 m) |
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72 | INTEGER :: nkR, nkG, nkB !: RGB (depth larger than ~100 m, ~470 m, ~1700 m, resp.) |
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73 | ! |
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74 | INTEGER, PUBLIC :: nksr !: =nkV, i.e. maximum level of light extinction (used in traatf(_qco).F90) |
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75 | ! |
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76 | ! ! inverse of attenuation length |
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77 | REAL(wp) :: r1_si0 ! all schemes : infrared = 1/rn_si0 |
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78 | REAL(wp) :: r1_si1 ! 2 band : mean RGB = 1/rn_si1 |
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79 | REAL(wp) :: r1_LR, r1_LG, r1_LB ! RGB with constant Chl (np_RGB) |
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80 | ! |
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81 | REAL(wp) , PUBLIC, DIMENSION(3,61) :: rkrgb ! tabulated attenuation coefficients for RGB absorption |
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82 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_chl ! structure of input Chl (file informations, fields read) |
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83 | |
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84 | !! * Substitutions |
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85 | # include "do_loop_substitute.h90" |
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86 | # include "domzgr_substitute.h90" |
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87 | !!---------------------------------------------------------------------- |
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88 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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89 | !! $Id$ |
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90 | !! Software governed by the CeCILL license (see ./LICENSE) |
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91 | !!---------------------------------------------------------------------- |
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92 | CONTAINS |
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93 | |
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94 | SUBROUTINE tra_qsr( kt, Kmm, pts, Krhs ) |
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95 | !!---------------------------------------------------------------------- |
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96 | !! *** ROUTINE tra_qsr *** |
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97 | !! |
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98 | !! ** Purpose : Compute the temperature trend due to the solar radiation |
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99 | !! penetration and add it to the general temperature trend. |
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100 | !! |
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101 | !! ** Method : The profile of the solar radiation within the ocean is defined |
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102 | !! through 2 wavebands (rn_si0,rn_si1) or 3 wavebands (RGB) or computed by |
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103 | !! the biogeochemical model |
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104 | !! The computation is only done down to the level where |
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105 | !! I(k) < 1.e-15 W/m2 (i.e. over the top nk levels) . |
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106 | !! |
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107 | !! ** Action : - update ts(jp_tem) with the penetrative solar radiation trend |
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108 | !! - send trend for further diagnostics (l_trdtra=T) |
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109 | !!---------------------------------------------------------------------- |
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110 | INTEGER, INTENT(in ) :: kt, Kmm, Krhs ! ocean time-step and time-level indices |
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111 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers and RHS of tracer equation |
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112 | ! |
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113 | INTEGER :: ji, jj, jk ! dummy loop indices |
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114 | REAL(wp) :: z1_2, ze3t ! local scalars |
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115 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrdt, zetot |
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116 | !!---------------------------------------------------------------------- |
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117 | ! |
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118 | IF( ln_timing ) CALL timing_start('tra_qsr') |
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119 | ! |
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120 | IF( .NOT. l_istiled .OR. ntile == 1 ) THEN ! Do only on the first tile |
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121 | IF( kt == nit000 ) THEN |
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122 | IF(lwp) WRITE(numout,*) |
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123 | IF(lwp) WRITE(numout,*) 'tra_qsr : penetration of the surface solar radiation' |
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124 | IF(lwp) WRITE(numout,*) '~~~~~~~' |
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125 | ENDIF |
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126 | ENDIF |
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127 | ! |
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128 | IF( l_trdtra ) THEN ! trends diagnostic: save the input temperature trend |
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129 | ALLOCATE( ztrdt(jpi,jpj,jpk) ) |
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130 | ztrdt(:,:,:) = pts(:,:,:,jp_tem,Krhs) |
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131 | ENDIF |
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132 | ! |
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133 | #if ! defined key_RK3 |
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134 | ! ! MLF only : heat content trend due to Qsr flux (qsr_hc) |
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135 | ! |
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136 | ! !-----------------------------------! |
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137 | ! ! before qsr induced heat content ! |
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138 | ! !-----------------------------------! |
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139 | IF( kt == nit000 ) THEN !== 1st time step ==! |
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140 | IF( ln_rstart .AND. .NOT.l_1st_euler ) THEN ! read in restart |
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141 | z1_2 = 0.5_wp |
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142 | IF( .NOT. l_istiled .OR. ntile == 1 ) THEN ! Do only on the first tile |
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143 | IF(lwp) WRITE(numout,*) ' nit000-1 qsr tracer content forcing field read in the restart file' |
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144 | CALL iom_get( numror, jpdom_auto, 'qsr_hc_b', qsr_hc_b ) ! before heat content trend due to Qsr flux |
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145 | ENDIF |
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146 | ELSE ! No restart or Euler forward at 1st time step |
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147 | z1_2 = 1._wp |
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148 | DO_3D_OVR( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpk ) |
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149 | qsr_hc_b(ji,jj,jk) = 0._wp |
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150 | END_3D |
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151 | ENDIF |
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152 | ELSE !== Swap of qsr heat content ==! |
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153 | z1_2 = 0.5_wp |
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154 | DO_3D_OVR( nn_hls, nn_hls, nn_hls, nn_hls, 1, jpk ) |
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155 | qsr_hc_b(ji,jj,jk) = qsr_hc(ji,jj,jk) |
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156 | END_3D |
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157 | ENDIF |
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158 | #endif |
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159 | |
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160 | ! !----------------------------! |
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161 | SELECT CASE( nqsr ) ! qsr induced heat content ! |
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162 | ! !----------------------------! |
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163 | ! |
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164 | CASE( np_RGBc ) ; CALL qsr_RGBc( kt, Kmm, pts, Krhs ) !== R-G-B fluxes using chlorophyll data ==! with Morel &Berthon (1989) vertical profile |
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165 | ! |
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166 | CASE( np_RGB ) ; CALL qsr_RGB ( kt, Kmm, pts, Krhs ) !== R-G-B fluxes with constant chlorophyll ==! |
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167 | ! |
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168 | CASE( np_2BD ) ; CALL qsr_2BD ( Kmm, pts, Krhs ) !== 2-bands fluxes ==! |
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169 | ! |
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170 | CASE( np_BIO ) !== bio-model fluxes ==! |
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171 | DO_3D( 0, 0, 0, 0, 1, nkV ) |
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172 | #if defined key_RK3 |
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173 | ! !- RK3 : temperature trend at jk t-level |
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174 | ze3t = e3t(ji,jj,jk,Kmm) |
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175 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( etot3(ji,jj,jk) - etot3(ji,jj,jk+1) ) / ze3t |
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176 | #else |
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177 | ! !- MLF : heat content trend due to Qsr flux (qsr_hc) |
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178 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( etot3(ji,jj,jk) - etot3(ji,jj,jk+1) ) |
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179 | #endif |
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180 | END_3D |
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181 | ! !- sea-ice : store the 1st level attenuation coefficient |
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182 | WHERE( etot3(A2D(0),1) /= 0._wp ) ; fraqsr_1lev(A2D(0)) = 1._wp - etot3(A2D(0),2) / etot3(A2D(0),1) |
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183 | ELSEWHERE ; fraqsr_1lev(A2D(0)) = 1._wp |
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184 | END WHERE |
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185 | ! |
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186 | END SELECT |
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187 | ! |
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188 | #if defined key_RK3 |
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189 | ! ! RK3 : diagnostics/output |
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190 | IF( l_trdtra .OR. iom_use('qsr3d') ) THEN ! qsr diagnostics |
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191 | ztrdt(:,:,:) = pts(:,:,:,jp_tem,Krhs) - ztrdt(:,:,:) |
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192 | ! ! qsr tracers trends saved for diagnostics |
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193 | IF( l_trdtra ) CALL trd_tra( kt, Kmm, Krhs, 'TRA', jp_tem, jptra_qsr, ztrdt ) |
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194 | IF( iom_use('qsr3d') ) THEN ! qsr distribution |
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195 | DO jk = nkV, 1, -1 |
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196 | ztrdt(:,:,jk) = ztrdt(:,:,jk+1) + qsr_hc(:,:,jk) * rho0_rcp |
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197 | END DO |
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198 | CALL iom_put( 'qsr3d', ztrdt ) ! 3D distribution of shortwave Radiation |
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199 | ENDIF |
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200 | DEALLOCATE( ztrdt ) |
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201 | ENDIF |
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202 | #else |
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203 | ! ! MLF : add the temperature trend |
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204 | DO_3D( 0, 0, 0, 0, 1, nksr ) |
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205 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) & |
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206 | & + z1_2 * ( qsr_hc_b(ji,jj,jk) + qsr_hc(ji,jj,jk) ) & |
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207 | & / e3t(ji,jj,jk,Kmm) |
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208 | END_3D |
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209 | ! |
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210 | !!st7-2 |
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211 | ! sea-ice: store the 1st ocean level attenuation coefficient |
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212 | DO_2D_OVR( nn_hls, nn_hls, nn_hls, nn_hls ) |
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213 | IF( qsr(ji,jj) /= 0._wp ) THEN ; fraqsr_1lev(ji,jj) = qsr_hc(ji,jj,1) / ( r1_rho0_rcp * qsr(ji,jj) ) |
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214 | ELSE ; fraqsr_1lev(ji,jj) = 1._wp |
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215 | ENDIF |
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216 | END_2D |
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217 | ! !===>>> CAUTION: lbc_lnk is required on fraqsr_lev since sea ice computes on the full domain |
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218 | ! ! otherwise restartability and reproducibility are broken |
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219 | CALL lbc_lnk( 'tra_qsr', fraqsr_1lev(:,:), 'T', 1._wp ) |
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220 | !!st CALL lbc_lnk( 'tra_qsr', qsr_hc(:,:,:), 'T', 1._wp ) |
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221 | ! |
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222 | IF( iom_use('qsr3d') ) THEN ! output the shortwave Radiation distribution |
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223 | ALLOCATE( zetot(A2D(nn_hls),jpk) ) |
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224 | zetot(:,:,nksr+1:jpk) = 0._wp ! below ~400m set to zero |
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225 | DO_3DS(0, 0, 0, 0, nksr, 1, -1) |
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226 | zetot(ji,jj,jk) = zetot(ji,jj,jk+1) + qsr_hc(ji,jj,jk) * rho0_rcp |
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227 | END_3D |
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228 | CALL iom_put( 'qsr3d', zetot ) ! 3D distribution of shortwave Radiation |
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229 | DEALLOCATE( zetot ) |
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230 | ENDIF |
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231 | ! |
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232 | IF( l_trdtra ) THEN ! qsr tracers trends saved for diagnostics |
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233 | ztrdt(:,:,:) = pts(:,:,:,jp_tem,Krhs) - ztrdt(:,:,:) |
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234 | CALL trd_tra( kt, Kmm, Krhs, 'TRA', jp_tem, jptra_qsr, ztrdt ) |
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235 | DEALLOCATE( ztrdt ) |
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236 | ENDIF |
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237 | #endif |
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238 | ! |
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239 | IF( .NOT. l_istiled .OR. ntile == nijtile ) THEN ! Do only on the last tile |
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240 | IF( lrst_oce ) THEN ! write in the ocean restart file |
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241 | CALL iom_rstput( kt, nitrst, numrow, 'qsr_hc_b' , qsr_hc ) |
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242 | CALL iom_rstput( kt, nitrst, numrow, 'fraqsr_1lev', fraqsr_1lev ) |
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243 | ENDIF |
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244 | ENDIF |
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245 | ! |
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246 | ! ! print mean trends (used for debugging) |
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247 | IF(sn_cfctl%l_prtctl) CALL prt_ctl( tab3d_1=pts(:,:,:,jp_tem,Krhs), clinfo1=' qsr - Ta: ', mask1=tmask, clinfo3='tra-ta' ) |
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248 | ! |
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249 | IF( ln_timing ) CALL timing_stop('tra_qsr') |
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250 | ! |
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251 | END SUBROUTINE tra_qsr |
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252 | |
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253 | |
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254 | SUBROUTINE qsr_RGBc( kt, Kmm, pts, Krhs ) |
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255 | !!---------------------------------------------------------------------- |
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256 | !! *** ROUTINE qsr_RGBc *** |
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257 | !! |
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258 | !! ** Purpose : Red-Green-Blue solar radiation using chlorophyll data |
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259 | !! |
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260 | !! ** Method : The profile of the solar radiation within the ocean is defined |
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261 | !! through 2 wavebands (rn_si0,rn_si1) or 3 wavebands (RGB) and a ratio rn_abs |
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262 | !! Considering the 2 wavebands case: |
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263 | !! I(k) = Qsr*( rn_abs*EXP(z(k)/rn_si0) + (1.-rn_abs)*EXP(z(k)/rn_si1) ) |
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264 | !! The temperature trend associated with the solar radiation penetration |
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265 | !! is given by : zta = 1/e3t dk[ I ] / (rho0*Cp) |
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266 | !! At the bottom, boudary condition for the radiation is no flux : |
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267 | !! all heat which has not been absorbed in the above levels is put |
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268 | !! in the last ocean level. |
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269 | !! The computation is only done down to the level where |
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270 | !! I(k) < 1.e-15 W/m2 (i.e. over the top nk levels) . |
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271 | !! |
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272 | !! ** Action : - update ta with the penetrative solar radiation trend |
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273 | !! - send trend for further diagnostics (l_trdtra=T) |
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274 | !! |
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275 | !! Reference : Lengaigne et al. 2007, Clim. Dyn., V28, 5, 503-516. |
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276 | !! Morel, A. et Berthon, JF, 1989, Limnol Oceanogr 34(8), 1545-1562 |
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277 | !!---------------------------------------------------------------------- |
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278 | INTEGER, INTENT(in ) :: kt, Kmm, Krhs ! ocean time-step and time-level indices |
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279 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers and RHS of tracer equation |
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280 | !! |
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281 | INTEGER :: ji, jj, jk ! dummy loop indices |
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282 | INTEGER :: irgb ! local integer |
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283 | REAL(wp) :: zc1 , zc2 , zc3, zchl ! local scalars |
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284 | REAL(wp) :: zze0, zzeR, zzeG, zzeB, zzeT ! - - |
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285 | REAL(wp) :: zz0 , zz1 , ze3t ! - - |
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286 | REAL(wp) :: zCb, zCmax, zpsi, zpsimax, zrdpsi, zCze ! - - |
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287 | REAL(wp) :: zlogc, zlogze, zlogCtot, zlogCze ! - - |
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288 | REAL(wp), DIMENSION(A2D(0) ) :: ze0, zeR, zeG, zeB, zeT |
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289 | REAL(wp), DIMENSION(A2D(0),0:3) :: zc |
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290 | !!---------------------------------------------------------------------- |
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291 | ! |
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292 | ! |
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293 | ! !===========================================! |
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294 | ! !== R-G-B fluxes using chlorophyll data ==! with Morel &Berthon (1989) vertical profile |
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295 | ! !===================================****====! |
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296 | ! |
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297 | ! != Chlorophyll data =! |
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298 | ! |
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299 | IF( ntile == 0 .OR. ntile == 1 ) THEN ! Do only for the full domain |
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300 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = 0 ) ! Use full domain |
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301 | CALL fld_read( kt, 1, sf_chl ) ! Read Chl data and provides it at the current time step |
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302 | IF( ln_tile ) CALL dom_tile( ntsi, ntsj, ntei, ntej, ktile = 1 ) ! Revert to tile domain |
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303 | ENDIF |
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304 | ! |
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305 | DO_2D( 0, 0, 0, 0 ) ! pre-calculated expensive coefficient |
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306 | zlogc = LOG( MAX( 0.03_wp, MIN( sf_chl(1)%fnow(ji,jj,1) ,10._wp ) ) ) ! zlogc = log(zchl) with 0.03 <= Chl >= 10. |
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307 | zc1 = 0.113328685307 + 0.803 * zlogc ! zc1 : log(zCze) = log (1.12 * zchl**0.803) |
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308 | zc2 = 3.703768066608 + 0.459 * zlogc ! zc2 : log(zCtot) = log(40.6 * zchl**0.459) |
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309 | zc3 = 6.34247346942 - 0.746 * zc2 ! zc3 : log(zze) = log(568.2 * zCtot**(-0.746)) |
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310 | IF( zc3 > 4.62497281328 ) zc3 = 5.298317366548 - 0.293 * zc2 ! IF(log(zze)>log(102)) log(zze) = log(200*zCtot**(-0.293)) |
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311 | ! |
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312 | zc(ji,jj,0) = zlogc ! ze(0) = log(zchl) |
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313 | zc(ji,jj,1) = EXP( zc1 ) ! ze(1) = zCze |
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314 | zc(ji,jj,2) = 1._wp / ( 0.710 + zlogc * ( 0.159 + zlogc * 0.021 ) ) ! ze(2) = 1/zdelpsi |
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315 | zc(ji,jj,3) = EXP( - zc3 ) ! ze(3) = 1/zze |
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316 | END_2D |
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317 | ! |
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318 | ! != surface light =! |
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319 | ! |
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320 | zz0 = rn_abs ! Infrared absorption |
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321 | zz1 = ( 1._wp - rn_abs ) / 3._wp ! R-G-B equi-partition |
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322 | ! |
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323 | DO_2D( 0, 0, 0, 0 ) ! surface light |
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324 | ze0(ji,jj) = zz0 * qsr(ji,jj) ; zeR(ji,jj) = zz1 * qsr(ji,jj) ! IR ; Red |
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325 | zeG(ji,jj) = zz1 * qsr(ji,jj) ; zeB(ji,jj) = zz1 * qsr(ji,jj) ! Green ; Blue |
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326 | zeT(ji,jj) = qsr(ji,jj) ! Total |
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327 | END_2D |
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328 | ! |
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329 | ! != interior light =! |
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330 | ! |
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331 | DO jk = 1, nk0 !* near surface layers *! (< ~12 meters : IR + RGB ) |
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332 | DO_2D( 0, 0, 0, 0 ) |
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333 | ! !- inverse of RGB attenuation lengths |
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334 | zlogc = zc(ji,jj,0) |
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335 | zCb = 0.768 + zlogc * ( 0.087 - zlogc * ( 0.179 + zlogc * 0.025 ) ) |
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336 | zCmax = 0.299 - zlogc * ( 0.289 - zlogc * 0.579 ) |
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337 | zpsimax = 0.6 - zlogc * ( 0.640 - zlogc * ( 0.021 + zlogc * 0.115 ) ) |
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338 | ! zdelpsi = 0.710 + zlogc * ( 0.159 + zlogc * 0.021 ) |
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339 | zCze = zc(ji,jj,1) |
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340 | zrdpsi = zc(ji,jj,2) ! 1/zdelpsi |
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341 | !!st05 zpsi = zc(ji,jj,3) * gdepw(ji,jj,jk,Kmm) ! gdepw/zze |
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342 | zpsi = zc(ji,jj,3) * gdepw(ji,jj,jk+1,Kmm) ! gdepw/zze |
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343 | ! ! make sure zchl value is such that: 0.03 < zchl < 10. |
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344 | zchl = MAX( 0.03_wp , MIN( zCze * ( zCb + zCmax * EXP( -( (zpsi - zpsimax) * zrdpsi )**2 ) ) , 10._wp ) ) |
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345 | ! ! Convert chlorophyll value to attenuation coefficient |
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346 | irgb = NINT( 41 + 20.*LOG10(zchl) + 1.e-15 ) ! look-up table index |
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347 | ! Red ! Green ! Blue |
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348 | r1_LR = rkrgb(3,irgb) ; r1_LG = rkrgb(2,irgb) ; r1_LB = rkrgb(1,irgb) |
---|
349 | ! |
---|
350 | ! !- fluxes at jk+1 w-level |
---|
351 | ze3t = e3t(ji,jj,jk,Kmm) |
---|
352 | zze0 = ze0(ji,jj) * EXP( - ze3t*r1_si0 ) ; zzeR = zeR(ji,jj) * EXP( - ze3t*r1_LR ) ! IR ; Red at jk+1 w-level |
---|
353 | zzeG = zeG(ji,jj) * EXP( - ze3t*r1_LG ) ; zzeB = zeB(ji,jj) * EXP( - ze3t*r1_LB ) ! Green ; Blue - - |
---|
354 | zzeT = ( zze0 + zzeB + zzeG + zzeR ) * wmask(ji,jj,jk+1) ! Total - - |
---|
355 | !!st01 zzeT = ( zze0 + zzeR + zzeG + zzeB ) * wmask(ji,jj,jk+1) ! Total - - |
---|
356 | ! |
---|
357 | #if defined key_RK3 |
---|
358 | ! !- RK3 : temperature trend at jk t-level |
---|
359 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) / ze3t |
---|
360 | #else |
---|
361 | ! !- MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
362 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) |
---|
363 | #endif |
---|
364 | ze0(ji,jj) = zze0 ; zeR(ji,jj) = zzeR ! IR ; Red store at jk+1 w-level |
---|
365 | zeG(ji,jj) = zzeG ; zeB(ji,jj) = zzeB ! Green ; Blue - - - |
---|
366 | zeT(ji,jj) = zzeT ! total - - - |
---|
367 | END_2D |
---|
368 | ! |
---|
369 | END DO |
---|
370 | ! |
---|
371 | IF( kt == nit000 ) THEN |
---|
372 | IF(lwp) WRITE(numout,*) 'nk0+1= ', nk0+1, ' qsr IR max = ' , MAXVAL(ze0(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(ze0(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
373 | IF(lwp) WRITE(numout,*) ' ', nk0+1, ' qsr R max = ' , MAXVAL(zeR(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeR(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
374 | IF(lwp) WRITE(numout,*) ' ', nk0+1, ' qsr G max = ' , MAXVAL(zeG(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeG(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
375 | IF(lwp) WRITE(numout,*) ' ', nk0+1, ' qsr B max = ' , MAXVAL(zeB(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeB(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
376 | IF(lwp) WRITE(numout,*) ' ', nk0+1, ' qsr T max = ' , MAXVAL(zeT(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeT(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
377 | ENDIF |
---|
378 | ! |
---|
379 | DO jk = nk0+1, nkR !* down to Red extinction *! (< ~71 meters : RGB , IR removed from calculation) |
---|
380 | DO_2D( 0, 0, 0, 0 ) |
---|
381 | ! !- inverse of RGB attenuation lengths |
---|
382 | zlogc = zc(ji,jj,0) |
---|
383 | zCb = 0.768 + zlogc * ( 0.087 - zlogc * ( 0.179 + zlogc * 0.025 ) ) |
---|
384 | zCmax = 0.299 - zlogc * ( 0.289 - zlogc * 0.579 ) |
---|
385 | zpsimax = 0.6 - zlogc * ( 0.640 - zlogc * ( 0.021 + zlogc * 0.115 ) ) |
---|
386 | ! zdelpsi = 0.710 + zlogc * ( 0.159 + zlogc * 0.021 ) |
---|
387 | zCze = zc(ji,jj,1) |
---|
388 | zrdpsi = zc(ji,jj,2) ! 1/zdelpsi |
---|
389 | zpsi = zc(ji,jj,3) * gdepw(ji,jj,jk+1,Kmm) ! gdepw/zze |
---|
390 | !!st05 zpsi = zc(ji,jj,3) * gdepw(ji,jj,jk,Kmm) ! gdepw/zze |
---|
391 | ! ! make sure zchl value is such that: 0.03 < zchl < 10. |
---|
392 | zchl = MAX( 0.03_wp , MIN( zCze * ( zCb + zCmax * EXP( -( (zpsi - zpsimax) * zrdpsi )**2 ) ) , 10._wp ) ) |
---|
393 | ! ! Convert chlorophyll value to attenuation coefficient |
---|
394 | irgb = NINT( 41 + 20.*LOG10(zchl) + 1.e-15 ) ! look-up table index |
---|
395 | ! Red ! Green ! Blue |
---|
396 | r1_LR = rkrgb(3,irgb) ; r1_LG = rkrgb(2,irgb) ; r1_LB = rkrgb(1,irgb) |
---|
397 | ! |
---|
398 | ! !- fluxes at jk+1 w-level |
---|
399 | ze3t = e3t(ji,jj,jk,Kmm) |
---|
400 | zzeR = zeR(ji,jj) * EXP( - ze3t*r1_LR ) ! Red at jk+1 w-level |
---|
401 | zzeG = zeG(ji,jj) * EXP( - ze3t*r1_LG ) ; zzeB = zeB(ji,jj) * EXP( - ze3t*r1_LB ) ! Green ; Blue - - |
---|
402 | zzeT = ( zzeR + zzeG + zzeB ) * wmask(ji,jj,jk+1) ! Total - - |
---|
403 | ! |
---|
404 | #if defined key_RK3 |
---|
405 | ! !- RK3 : temperature trend at jk t-level |
---|
406 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) / ze3t |
---|
407 | #else |
---|
408 | ! !- MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
409 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) |
---|
410 | #endif |
---|
411 | zeR(ji,jj) = zzeR ! Red store at jk+1 w-level |
---|
412 | zeG(ji,jj) = zzeG ; zeB(ji,jj) = zzeB ! Green ; Blue - - - |
---|
413 | zeT(ji,jj) = zzeT ! total - - - |
---|
414 | END_2D |
---|
415 | END DO |
---|
416 | ! |
---|
417 | IF( kt == nit000 ) THEN |
---|
418 | IF(lwp) WRITE(numout,*) 'nkR+1= ', nkR+1, ' qsr R max = ' , MAXVAL(zeR(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeR(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
419 | IF(lwp) WRITE(numout,*) ' ', nkR+1, ' qsr G max = ' , MAXVAL(zeG(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeG(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
420 | IF(lwp) WRITE(numout,*) ' ', nkR+1, ' qsr B max = ' , MAXVAL(zeB(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeB(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
421 | IF(lwp) WRITE(numout,*) ' ', nkR+1, ' qsr T max = ' , MAXVAL(zeT(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeT(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
422 | ENDIF |
---|
423 | ! |
---|
424 | DO jk = nkR+1, nkG !* down to Green extinction *! (< ~350 m : GB , IR+R removed from calculation) |
---|
425 | DO_2D( 0, 0, 0, 0 ) |
---|
426 | ! !- inverse of RGB attenuation lengths |
---|
427 | zlogc = zc(ji,jj,0) |
---|
428 | zCb = 0.768 + zlogc * ( 0.087 - zlogc * ( 0.179 + zlogc * 0.025 ) ) |
---|
429 | zCmax = 0.299 - zlogc * ( 0.289 - zlogc * 0.579 ) |
---|
430 | zpsimax = 0.6 - zlogc * ( 0.640 - zlogc * ( 0.021 + zlogc * 0.115 ) ) |
---|
431 | ! zdelpsi = 0.710 + zlogc * ( 0.159 + zlogc * 0.021 ) |
---|
432 | zCze = zc(ji,jj,1) |
---|
433 | zrdpsi = zc(ji,jj,2) ! 1/zdelpsi |
---|
434 | zpsi = zc(ji,jj,3) * gdepw(ji,jj,jk+1,Kmm) ! gdepw/zze |
---|
435 | !!st05 zpsi = zc(ji,jj,3) * gdepw(ji,jj,jk,Kmm) ! gdepw/zze |
---|
436 | ! ! make sure zchl value is such that: 0.03 < zchl < 10. |
---|
437 | zchl = MAX( 0.03_wp , MIN( zCze * ( zCb + zCmax * EXP( -( (zpsi - zpsimax) * zrdpsi )**2 ) ) , 10._wp ) ) |
---|
438 | ! ! Convert chlorophyll value to attenuation coefficient |
---|
439 | irgb = NINT( 41 + 20.*LOG10(zchl) + 1.e-15 ) ! look-up table index |
---|
440 | ! Green ! Blue |
---|
441 | r1_LG = rkrgb(2,irgb) ; r1_LB = rkrgb(1,irgb) |
---|
442 | ! |
---|
443 | ! !- fluxes at jk+1 w-level |
---|
444 | ze3t = e3t(ji,jj,jk,Kmm) |
---|
445 | zzeG = zeG(ji,jj) * EXP( - ze3t * r1_LG ) ; zzeB = zeB(ji,jj) * EXP( - ze3t * r1_LB ) ! Green ; Blue |
---|
446 | zzeT = ( zzeG + zzeB ) * wmask(ji,jj,jk+1) ! Total - - |
---|
447 | #if defined key_RK3 |
---|
448 | ! !- RK3 : temperature trend at jk t-level |
---|
449 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) / ze3t |
---|
450 | #else |
---|
451 | ! !- MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
452 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) |
---|
453 | #endif |
---|
454 | zeG(ji,jj) = zzeG ; zeB(ji,jj) = zzeB ! Green ; Blue store at jk+1 w-level |
---|
455 | zeT(ji,jj) = zzeT ! total - - - |
---|
456 | END_2D |
---|
457 | END DO |
---|
458 | ! |
---|
459 | IF( kt == nit000 ) THEN |
---|
460 | IF(lwp) WRITE(numout,*) 'nkG+1= ', nkG+1, ' qsr G max = ' , MAXVAL(zeG(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeG(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
461 | IF(lwp) WRITE(numout,*) ' ', nkG+1, ' qsr B max = ' , MAXVAL(zeB(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeB(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
462 | IF(lwp) WRITE(numout,*) ' ', nkG+1, ' qsr T max = ' , MAXVAL(zeT(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeT(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
463 | ENDIF |
---|
464 | ! |
---|
465 | DO jk = nkG+1, nkB !* down to Blue extinction *! (< ~1300 m : B , IR+RG removed from calculation) |
---|
466 | DO_2D( 0, 0, 0, 0 ) |
---|
467 | ! !- inverse of RGB attenuation lengths |
---|
468 | zlogc = zc(ji,jj,0) |
---|
469 | zCb = 0.768 + zlogc * ( 0.087 - zlogc * ( 0.179 + zlogc * 0.025 ) ) |
---|
470 | zCmax = 0.299 - zlogc * ( 0.289 - zlogc * 0.579 ) |
---|
471 | zpsimax = 0.6 - zlogc * ( 0.640 - zlogc * ( 0.021 + zlogc * 0.115 ) ) |
---|
472 | ! zdelpsi = 0.710 + zlogc * ( 0.159 + zlogc * 0.021 ) |
---|
473 | zCze = zc(ji,jj,1) |
---|
474 | zrdpsi = zc(ji,jj,2) ! 1/zdelpsi |
---|
475 | zpsi = zc(ji,jj,3) * gdepw(ji,jj,jk+1,Kmm) ! gdepw/zze |
---|
476 | !!st05 zpsi = zc(ji,jj,3) * gdepw(ji,jj,jk,Kmm) ! gdepw/zze |
---|
477 | ! ! make sure zchl value is such that: 0.03 < zchl < 10. |
---|
478 | zchl = MAX( 0.03_wp , MIN( zCze * ( zCb + zCmax * EXP( -( (zpsi - zpsimax) * zrdpsi )**2 ) ) , 10._wp ) ) |
---|
479 | ! ! Convert chlorophyll value to attenuation coefficient |
---|
480 | irgb = NINT( 41 + 20.*LOG10(zchl) + 1.e-15 ) ! look-up table index |
---|
481 | r1_LB = rkrgb(1,irgb) ! Blue |
---|
482 | ! |
---|
483 | ! !- fluxes at jk+1 w-level |
---|
484 | ze3t = e3t(ji,jj,jk,Kmm) |
---|
485 | zzeB = zeB(ji,jj) * EXP( - ze3t * r1_LB ) ! Blue |
---|
486 | zzeT = ( zzeB ) * wmask(ji,jj,jk+1) ! Total - - |
---|
487 | #if defined key_RK3 |
---|
488 | ! !- RK3 : temperature trend at jk t-level |
---|
489 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) / ze3t |
---|
490 | #else |
---|
491 | ! !- MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
492 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) |
---|
493 | #endif |
---|
494 | zeB(ji,jj) = zzeB ! Blue store at jk+1 w-level |
---|
495 | zeT(ji,jj) = zzeT ! total - - - |
---|
496 | END_2D |
---|
497 | END DO |
---|
498 | ! |
---|
499 | IF( kt == nit000 ) THEN |
---|
500 | IF(lwp) WRITE(numout,*) 'nkB+1= ', nkB+1, ' qsr T max = ' , MAXVAL(zeT), ' W/m2' , MAXVAL(zeT(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)), ' K/s' |
---|
501 | ENDIF |
---|
502 | ! |
---|
503 | END SUBROUTINE qsr_RGBc |
---|
504 | |
---|
505 | |
---|
506 | SUBROUTINE qsr_RGB( kt, Kmm, pts, Krhs ) |
---|
507 | !!---------------------------------------------------------------------- |
---|
508 | !! *** ROUTINE qsr_RGB *** |
---|
509 | !! |
---|
510 | !! ** Purpose : Red-Green-Blue solar radiation with constant chlorophyll |
---|
511 | !! |
---|
512 | !! ** Method : The profile of the solar radiation within the ocean is defined |
---|
513 | !! through 2 wavebands (rn_si0,rn_si1) or 1 (rn_si0,rn_abs) + 3 wavebands (RGB) |
---|
514 | !! At the bottom, boudary condition for the radiation is no flux : |
---|
515 | !! all heat which has not been absorbed in the above levels is put |
---|
516 | !! in the last ocean level. |
---|
517 | !! For each band, the computation is only done down to the level where |
---|
518 | !! I(k) < 1.e-15 W/m2 (i.e. over the top nk levels) . |
---|
519 | !! |
---|
520 | !! ** Action : - update ta with the penetrative solar radiation trend |
---|
521 | !! - send trend for further diagnostics (l_trdtra=T) |
---|
522 | !! |
---|
523 | !! Reference : Lengaigne et al. 2007, Clim. Dyn., V28, 5, 503-516. |
---|
524 | !! Morel, A. et Berthon, JF, 1989, Limnol Oceanogr 34(8), 1545-1562 |
---|
525 | !!---------------------------------------------------------------------- |
---|
526 | INTEGER, INTENT(in ) :: kt, Kmm, Krhs ! ocean time-step and time-level indices |
---|
527 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers and RHS of tracer equation |
---|
528 | !! |
---|
529 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
530 | REAL(wp) :: zze0, zzeR, zzeG, zzeB, zzeT ! - - |
---|
531 | REAL(wp) :: zz0 , zz1 , ze3t ! - - |
---|
532 | REAL(wp), DIMENSION(A2D(0)) :: ze0, zeR, zeG, zeB, zeT |
---|
533 | !!---------------------------------------------------------------------- |
---|
534 | ! |
---|
535 | ! |
---|
536 | ! !==============================================! |
---|
537 | ! !== R-G-B fluxes with constant chlorophyll ==! |
---|
538 | ! !======================********================! |
---|
539 | ! |
---|
540 | ! != surface light =! |
---|
541 | ! |
---|
542 | zz0 = rn_abs ! Infrared absorption |
---|
543 | zz1 = ( 1._wp - rn_abs ) / 3._wp ! surface equi-partition in R-G-B |
---|
544 | ! |
---|
545 | DO_2D( 0, 0, 0, 0 ) ! surface light |
---|
546 | ze0(ji,jj) = zz0 * qsr(ji,jj) ; zeR(ji,jj) = zz1 * qsr(ji,jj) ! IR ; Red |
---|
547 | zeG(ji,jj) = zz1 * qsr(ji,jj) ; zeB(ji,jj) = zz1 * qsr(ji,jj) ! Green ; Blue |
---|
548 | zeT(ji,jj) = qsr(ji,jj) ! Total |
---|
549 | END_2D |
---|
550 | ! |
---|
551 | ! != interior light =! |
---|
552 | ! |
---|
553 | DO jk = 1, nk0 !* near surface layers *! (< ~12 meters : IR + RGB ) |
---|
554 | DO_2D( 0, 0, 0, 0 ) |
---|
555 | ze3t = e3t(ji,jj,jk,Kmm) |
---|
556 | zze0 = ze0(ji,jj) * EXP( - ze3t * r1_si0 ) ; zzeR = zeR(ji,jj) * EXP( - ze3t * r1_LR ) ! IR ; Red at jk+1 w-level |
---|
557 | zzeG = zeG(ji,jj) * EXP( - ze3t * r1_LG ) ; zzeB = zeB(ji,jj) * EXP( - ze3t * r1_LB ) ! Green ; Blue - - |
---|
558 | zzeT = ( zze0 + zzeB + zzeG + zzeR ) * wmask(ji,jj,jk+1) ! Total - - |
---|
559 | !!st7-9 zzeT = ( zze0 + zzeR + zzeG + zzeB ) * wmask(ji,jj,jk+1) ! Total - - |
---|
560 | #if defined key_RK3 |
---|
561 | ! ! RK3 : temperature trend at jk t-level |
---|
562 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) / ze3t |
---|
563 | #else |
---|
564 | ! ! MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
565 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) |
---|
566 | #endif |
---|
567 | ze0(ji,jj) = zze0 ; zeR(ji,jj) = zzeR ! IR ; Red store at jk+1 w-level |
---|
568 | zeG(ji,jj) = zzeG ; zeB(ji,jj) = zzeB ! Green ; Blue - - - |
---|
569 | zeT(ji,jj) = zzeT ! total - - - |
---|
570 | END_2D |
---|
571 | !!stbug IF( jk == 1 ) THEN !* sea-ice *! store the 1st level attenuation coeff. |
---|
572 | !!stbug WHERE( qsr(A2D(0)) /= 0._wp ) ; fraqsr_1lev(A2D(0)) = 1._wp - zeT(A2D(0)) / qsr(A2D(0)) |
---|
573 | !!stbug ELSEWHERE ; fraqsr_1lev(A2D(0)) = 1._wp |
---|
574 | !!stbug END WHERE |
---|
575 | !!stbug ENDIF |
---|
576 | END DO |
---|
577 | ! |
---|
578 | IF( kt == nit000 ) THEN |
---|
579 | IF(lwp) WRITE(numout,*) 'nk0+1= ', nk0+1, ' qsr IR max = ' , MAXVAL(ze0(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(ze0(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
580 | IF(lwp) WRITE(numout,*) ' ', nk0+1, ' qsr R max = ' , MAXVAL(zeR(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeR(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
581 | IF(lwp) WRITE(numout,*) ' ', nk0+1, ' qsr G max = ' , MAXVAL(zeG(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeG(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
582 | IF(lwp) WRITE(numout,*) ' ', nk0+1, ' qsr B max = ' , MAXVAL(zeB(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeB(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
583 | IF(lwp) WRITE(numout,*) ' ', nk0+1, ' qsr T max = ' , MAXVAL(zeT(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeT(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
584 | ENDIF |
---|
585 | ! |
---|
586 | DO jk = nk0+1, nkR !* down to Red extinction *! (< ~71 meters : RGB , IR removed from calculation) |
---|
587 | DO_2D( 0, 0, 0, 0 ) |
---|
588 | ze3t = e3t(ji,jj,jk,Kmm) |
---|
589 | zzeR = zeR(ji,jj) * EXP( - ze3t * r1_LR ) ! Red at jk+1 w-level |
---|
590 | zzeG = zeG(ji,jj) * EXP( - ze3t * r1_LG ) ; zzeB = zeB(ji,jj) * EXP( - ze3t * r1_LB ) ! Green ; Blue - - |
---|
591 | zzeT = ( zzeB + zzeG + zzeR ) * wmask(ji,jj,jk+1) ! Total - - |
---|
592 | !!st7-11 zzeT = ( zzeR + zzeG + zzeB ) * wmask(ji,jj,jk+1) ! Total - - |
---|
593 | #if defined key_RK3 |
---|
594 | ! ! RK3 : temperature trend at jk t-level |
---|
595 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) / ze3t |
---|
596 | #else |
---|
597 | ! ! MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
598 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) |
---|
599 | #endif |
---|
600 | zeR(ji,jj) = zzeR ! Red store at jk+1 w-level |
---|
601 | zeG(ji,jj) = zzeG ; zeB(ji,jj) = zzeB ! Green ; Blue - - - |
---|
602 | zeT(ji,jj) = zzeT ! total - - - |
---|
603 | END_2D |
---|
604 | END DO |
---|
605 | ! |
---|
606 | IF( kt == nit000 ) THEN |
---|
607 | IF(lwp) WRITE(numout,*) 'nkR+1= ', nkR+1, ' qsr R max = ' , MAXVAL(zeR(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeR(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
608 | IF(lwp) WRITE(numout,*) ' ', nkR+1, ' qsr G max = ' , MAXVAL(zeG(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeG(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
609 | IF(lwp) WRITE(numout,*) ' ', nkR+1, ' qsr B max = ' , MAXVAL(zeB(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeB(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
610 | IF(lwp) WRITE(numout,*) ' ', nkR+1, ' qsr T max = ' , MAXVAL(zeT(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeT(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
611 | ENDIF |
---|
612 | ! |
---|
613 | DO jk = nkR+1, nkG !* down to Green extinction *! (< ~350 m : GB , IR+R removed from calculation) |
---|
614 | DO_2D( 0, 0, 0, 0 ) |
---|
615 | ze3t = e3t(ji,jj,jk,Kmm) |
---|
616 | zzeG = zeG(ji,jj) * EXP( - ze3t * r1_LG ) ; zzeB = zeB(ji,jj) * EXP( - ze3t * r1_LB ) ! Green ; Blue at jk+1 w-level |
---|
617 | zzeT = ( zzeG + zzeB ) * wmask(ji,jj,jk+1) ! Total - - |
---|
618 | #if defined key_RK3 |
---|
619 | ! ! RK3 : temperature trend at jk t-level |
---|
620 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) / ze3t |
---|
621 | #else |
---|
622 | ! ! MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
623 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) |
---|
624 | #endif |
---|
625 | zeG(ji,jj) = zzeG ; zeB(ji,jj) = zzeB ! Green ; Blue store at jk+1 w-level |
---|
626 | zeT(ji,jj) = zzeT ! total - - - |
---|
627 | END_2D |
---|
628 | END DO |
---|
629 | ! |
---|
630 | IF( kt == nit000 ) THEN |
---|
631 | IF(lwp) WRITE(numout,*) 'nkG+1= ', nkG+1, ' qsr G max = ' , MAXVAL(zeG(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeG(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
632 | IF(lwp) WRITE(numout,*) ' ', nkG+1, ' qsr B max = ' , MAXVAL(zeB(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeB(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
633 | IF(lwp) WRITE(numout,*) ' ', nkG+1, ' qsr T max = ' , MAXVAL(zeT(:,:)*wmask(:,:,jk)), ' W/m2' , MAXVAL(zeT(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)*wmask(:,:,jk)), ' K/s' |
---|
634 | ENDIF |
---|
635 | ! |
---|
636 | DO jk = nkG+1, nkB !* down to Blue extinction *! (< ~1300 m : B , IR+RG removed from calculation) |
---|
637 | DO_2D( 0, 0, 0, 0 ) |
---|
638 | ze3t = e3t(ji,jj,jk,Kmm) |
---|
639 | zzeB = zeB(ji,jj) * EXP( - ze3t * r1_LB ) ! Blue at jk+1 w-level |
---|
640 | zzeT = ( zzeB ) * wmask(ji,jj,jk+1) ! Total - - |
---|
641 | #if defined key_RK3 |
---|
642 | ! ! RK3 : temperature trend at jk t-level |
---|
643 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) / ze3t |
---|
644 | #else |
---|
645 | ! ! MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
646 | qsr_hc(ji,jj,jk) = r1_rho0_rcp * ( zeT(ji,jj) - zzeT ) |
---|
647 | #endif |
---|
648 | zeB(ji,jj) = zzeB ! Blue store at jk+1 w-level |
---|
649 | zeT(ji,jj) = zzeT ! total - - - |
---|
650 | END_2D |
---|
651 | END DO |
---|
652 | ! |
---|
653 | IF( kt == nit000 ) THEN |
---|
654 | IF(lwp) WRITE(numout,*) 'nkB+1= ', nkB+1, ' qsr T max = ' , MAXVAL(zeT), ' W/m2' , MAXVAL(zeT(:,:)*r1_rho0_rcp/e3t(:,:,nk0+1,Kmm)), ' K/s' |
---|
655 | ENDIF |
---|
656 | ! |
---|
657 | END SUBROUTINE qsr_RGB |
---|
658 | |
---|
659 | |
---|
660 | SUBROUTINE qsr_2BD( Kmm, pts, Krhs ) |
---|
661 | !!---------------------------------------------------------------------- |
---|
662 | !! *** ROUTINE qsr_2BD *** |
---|
663 | !! |
---|
664 | !! ** Purpose : 2 bands (IR+visible) solar radiation with constant chlorophyll |
---|
665 | !! |
---|
666 | !! ** Method : The profile of the solar radiation within the ocean is defined |
---|
667 | !! through 2 wavebands (rn_si0,rn_si1) a ratio rn_abs for IR absorbtion. |
---|
668 | !! Considering the 2 wavebands case: |
---|
669 | !! I(k) = Qsr*( rn_abs*EXP(z(k)/rn_si0) + (1.-rn_abs)*EXP(z(k)/rn_si1) ) |
---|
670 | !! The temperature trend associated with the solar radiation penetration |
---|
671 | !! is given by : zta = 1/e3t dk[ I ] / (rho0*Cp) |
---|
672 | !! At the bottom, boudary condition for the radiation is no flux : |
---|
673 | !! all heat which has not been absorbed in the above levels is put |
---|
674 | !! in the last ocean level. |
---|
675 | !! The computation is only done down to the level where |
---|
676 | !! I(k) < 1.e-15 W/m2 (i.e. over the top nk levels) . |
---|
677 | !! |
---|
678 | !! ** Action : - update ta with the penetrative solar radiation trend |
---|
679 | !! - send trend for further diagnostics (l_trdtra=T) |
---|
680 | !! |
---|
681 | !! Reference : Jerlov, N. G., 1968 Optical Oceanography, Elsevier, 194pp. |
---|
682 | !! Lengaigne et al. 2007, Clim. Dyn., V28, 5, 503-516. |
---|
683 | !! Morel, A. et Berthon, JF, 1989, Limnol Oceanogr 34(8), 1545-1562 |
---|
684 | !!---------------------------------------------------------------------- |
---|
685 | INTEGER, INTENT(in ) :: Kmm, Krhs ! ocean time-step and time-level indices |
---|
686 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers and RHS of tracer equation |
---|
687 | !! |
---|
688 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
689 | REAL(wp) :: zzatt ! - - |
---|
690 | REAL(wp) :: zz0 , zz1 , ze3t ! - - |
---|
691 | REAL(wp), DIMENSION(A2D(0)) :: zatt |
---|
692 | !!---------------------------------------------------------------------- |
---|
693 | ! |
---|
694 | ! !======================! |
---|
695 | ! !== 2-bands fluxes ==! |
---|
696 | ! !======================! |
---|
697 | ! |
---|
698 | zz0 = rn_abs * r1_rho0_rcp ! surface equi-partition in 2-bands |
---|
699 | zz1 = ( 1._wp - rn_abs ) * r1_rho0_rcp |
---|
700 | ! |
---|
701 | zatt(A2D(0)) = r1_rho0_rcp !* surface value *! |
---|
702 | ! |
---|
703 | DO_2D( 0, 0, 0, 0 ) |
---|
704 | zatt(ji,jj) = ( zz0 * EXP( -gdepw(ji,jj,1,Kmm)*r1_si0 ) + zz1 * EXP( -gdepw(ji,jj,1,Kmm)*r1_si1 ) ) |
---|
705 | END_2D |
---|
706 | ! |
---|
707 | !!st IF(lwp) WRITE(numout,*) 'level = ', 1, ' qsr max = ' , MAXVAL(zatt)*rho0_rcp, ' W/m2', ' qsr min = ' , MINVAL(zatt)*rho0_rcp, ' W/m2' |
---|
708 | ! |
---|
709 | DO jk = 1, nk0 !* near surface layers *! (< ~14 meters : IR + visible light ) |
---|
710 | DO_2D( 0, 0, 0, 0 ) |
---|
711 | ze3t = e3t(ji,jj,jk,Kmm) ! light attenuation at jk+1 w-level (divided by rho0_rcp) |
---|
712 | zzatt = ( zz0 * EXP( -gdepw(ji,jj,jk+1,Kmm)*r1_si0 ) & |
---|
713 | & + zz1 * EXP( -gdepw(ji,jj,jk+1,Kmm)*r1_si1 ) ) * wmask(ji,jj,jk+1) |
---|
714 | #if defined key_RK3 |
---|
715 | ! ! RK3 : temperature trend at jk t-level |
---|
716 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + qsr(ji,jj) * ( zatt(ji,jj) - zzatt ) / ze3t |
---|
717 | #else |
---|
718 | ! ! MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
719 | qsr_hc(ji,jj,jk) = qsr(ji,jj) * ( zatt(ji,jj) - zzatt ) |
---|
720 | #endif |
---|
721 | zatt(ji,jj) = zzatt ! save for the next level computation |
---|
722 | END_2D |
---|
723 | !!stbug ! !* sea-ice *! store the 1st level attenuation coeff. |
---|
724 | !!stbug IF( jk == 1 ) fraqsr_1lev(A2D(0)) = 1._wp - zatt(A2D(0)) * rho0_rcp |
---|
725 | END DO |
---|
726 | !!st IF(lwp) WRITE(numout,*) 'nk0+1= ', nk0+1, ' qsr max = ' , MAXVAL(zatt*qsr)*rho0_rcp, ' W/m2' , MAXVAL(zatt*qsr/e3t(:,:,nk0+1,Kmm)), ' K/s' |
---|
727 | ! |
---|
728 | DO jk = nk0+1, nkV !* deeper layers *! (visible light only) |
---|
729 | DO_2D( 0, 0, 0, 0 ) |
---|
730 | ze3t = e3t(ji,jj,jk,Kmm) ! light attenuation at jk+1 w-level (divided by rho0_rcp) |
---|
731 | zzatt = ( zz1 * EXP( -gdepw(ji,jj,jk+1,Kmm)*r1_si1 ) ) * wmask(ji,jj,jk+1) |
---|
732 | #if defined key_RK3 |
---|
733 | ! ! RK3 : temperature trend at jk t-level |
---|
734 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) + qsr(ji,jj) * ( zatt(ji,jj) - zzatt ) / ze3t |
---|
735 | #else |
---|
736 | ! ! MLF : heat content trend due to Qsr flux (qsr_hc) |
---|
737 | qsr_hc(ji,jj,jk) = qsr(ji,jj) * ( zatt(ji,jj) - zzatt ) |
---|
738 | #endif |
---|
739 | zatt(ji,jj) = zzatt ! save for the next level computation |
---|
740 | END_2D |
---|
741 | END DO |
---|
742 | ! |
---|
743 | !!st IF(lwp) WRITE(numout,*) 'nkV+1= ', nkV+1, ' qsr max = ' , MAXVAL(zatt*qsr)*rho0_rcp, ' W/m2' , MAXVAL(zatt*qsr/e3t(:,:,nkV+1,Kmm)), ' K/s' |
---|
744 | END SUBROUTINE qsr_2bd |
---|
745 | |
---|
746 | |
---|
747 | FUNCTION qsr_ext_lev( pL, pfr ) RESULT( klev ) |
---|
748 | !!---------------------------------------------------------------------- |
---|
749 | !! *** ROUTINE trc_oce_ext_lev *** |
---|
750 | !! |
---|
751 | !! ** Purpose : compute the maximum level of light penetration |
---|
752 | !! |
---|
753 | !! ** Method : the function provides the level at which irradiance, I, |
---|
754 | !! has a negligible effect on temperature. |
---|
755 | !! T(n+1)-T(n) = ∆t dk[I] / ( rho0 Cp e3t_k ) |
---|
756 | !! I(k) has a negligible effect on temperature at level k if: |
---|
757 | !! ∆t I(k) / ( rho0*Cp*e3t_k ) <= 1.e-15 °C |
---|
758 | !! with I(z) = Qsr*pfr*EXP(-z/L), therefore : |
---|
759 | !! z >= L * LOG( 1.e-15 * rho0*Cp*e3t_k / ( ∆t*Qsr*pfr ) ) |
---|
760 | !! with Qsr being the maximum normal surface irradiance at sea |
---|
761 | !! level (~1000 W/m2). |
---|
762 | !! # pL is the longest depth of extinction: |
---|
763 | !! - pL = 23.00 m (2 bands case) |
---|
764 | !! - pL = 48.24 m (3 bands case: blue waveband & 0.03 mg/m2 for the chlorophyll) |
---|
765 | !! # pfr is the fraction of solar radiation which penetrates, |
---|
766 | !! considering Qsr=1000 W/m2 and rn_abs = 0.58: |
---|
767 | !! - Qsr*pfr0 = Qsr * rn_abs = 580 W/m2 (top absorbtion) |
---|
768 | !! - Qsr*pfr1 = Qsr * (1-rn_abs) = 420 W/m2 (2 bands case) |
---|
769 | !! - Qsr*pfr1 = Qsr * (1-rn_abs)/3 = 140 W/m2 (3 bands case & equi-partition) |
---|
770 | !! |
---|
771 | !!---------------------------------------------------------------------- |
---|
772 | INTEGER :: klev ! result: maximum level of light penetration |
---|
773 | REAL(wp), INTENT(in) :: pL ! depth of extinction |
---|
774 | REAL(wp), INTENT(in) :: pfr ! frac. solar radiation which penetrates |
---|
775 | ! |
---|
776 | INTEGER :: jk ! dummy loop index |
---|
777 | REAL(wp) :: zcoef ! local scalar |
---|
778 | REAL(wp) :: zhext ! deepest depth until which light penetrates |
---|
779 | REAL(wp) :: ze3t , zdw ! max( e3t_k ) and min( w-depth_k+1 ) |
---|
780 | REAL(wp) :: zprec = 10.e-15_wp ! required precision |
---|
781 | REAL(wp) :: zQmax= 1000._wp ! maximum normal surface irradiance at sea level (W/m2) |
---|
782 | !!---------------------------------------------------------------------- |
---|
783 | ! |
---|
784 | zQmax = 1000._wp ! maximum normal surface irradiance at sea level (W/m2) |
---|
785 | ! |
---|
786 | zcoef = zprec * rho0_rcp / ( rDt * zQmax * pfr) |
---|
787 | ! |
---|
788 | IF( ln_zco .OR. ln_zps ) THEN ! z- or zps coordinate (use 1D ref vertcial coordinate) |
---|
789 | klev = jpkm1 ! Level of light extinction zco / zps |
---|
790 | DO jk = jpkm1, 1, -1 |
---|
791 | zdw = gdepw_1d(jk+1) ! max w-depth at jk+1 level |
---|
792 | ze3t = e3t_1d(jk ) ! minimum e3t at jk level |
---|
793 | zhext = - pL * LOG( zcoef * ze3t ) ! extinction depth |
---|
794 | IF( zdw >= zhext ) klev = jk ! last T-level reached by Qsr |
---|
795 | END DO |
---|
796 | ELSE ! s- or s-z- coordinate (use 3D vertical coordinate) |
---|
797 | klev = jpkm1 ! Level of light extinction |
---|
798 | DO jk = jpkm1, 1, -1 ! |
---|
799 | IF( SUM( tmask(:,:,jk) ) > 0 ) THEN ! ocean point at that level |
---|
800 | zdw = MAXVAL( gdepw_0(:,:,jk+1) * wmask(:,:,jk) ) ! max w-depth at jk+1 level |
---|
801 | ze3t = MINVAL( e3t_0(:,:,jk ) , mask=(wmask(:,:,jk+1)==1) ) ! minimum e3t at jk level |
---|
802 | zhext = - pL * LOG( zcoef * ze3t ) ! extinction depth |
---|
803 | IF( zdw >= zhext ) klev = jk ! last T-level reached by Qsr |
---|
804 | ELSE ! only land point at level jk |
---|
805 | klev = jk ! local domain sea-bed level |
---|
806 | ENDIF |
---|
807 | END DO |
---|
808 | CALL mpp_max('tra_qsr', klev) ! needed for reproducibility !!st may be modified to avoid this comm. |
---|
809 | ! !!st use ssmask to remove the comm ? |
---|
810 | ENDIF |
---|
811 | ! |
---|
812 | !!st IF(lwp) WRITE(numout,*) ' level of e3t light extinction = ', klev, ' ref depth = ', gdepw_1d(klev+1), ' m' |
---|
813 | END FUNCTION qsr_ext_lev |
---|
814 | |
---|
815 | |
---|
816 | SUBROUTINE tra_qsr_init |
---|
817 | !!---------------------------------------------------------------------- |
---|
818 | !! *** ROUTINE tra_qsr_init *** |
---|
819 | !! |
---|
820 | !! ** Purpose : Initialization for the penetrative solar radiation |
---|
821 | !! |
---|
822 | !! ** Method : The profile of solar radiation within the ocean is set |
---|
823 | !! from two length scale of penetration (rn_si0,rn_si1) and a ratio |
---|
824 | !! (rn_abs). These parameters are read in the namtra_qsr namelist. The |
---|
825 | !! default values correspond to clear water (type I in Jerlov' |
---|
826 | !! (1968) classification. |
---|
827 | !! called by tra_qsr at the first timestep (nit000) |
---|
828 | !! |
---|
829 | !! ** Action : - initialize rn_si0, rn_si1 and rn_abs |
---|
830 | !! |
---|
831 | !! Reference : Jerlov, N. G., 1968 Optical Oceanography, Elsevier, 194pp. |
---|
832 | !!---------------------------------------------------------------------- |
---|
833 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
834 | INTEGER :: ios, ierror, ioptio ! local integer |
---|
835 | REAL(wp) :: zLB, zLG, zLR ! local scalar |
---|
836 | REAL(wp) :: zVlp, zchl ! - - |
---|
837 | ! |
---|
838 | CHARACTER(len=100) :: cn_dir ! Root directory for location of ssr files |
---|
839 | TYPE(FLD_N) :: sn_chl ! informations about the chlorofyl field to be read |
---|
840 | !! |
---|
841 | NAMELIST/namtra_qsr/ sn_chl, cn_dir, ln_qsr_rgb, ln_qsr_2bd, ln_qsr_bio, & |
---|
842 | & nn_chldta, rn_abs, rn_si0, rn_si1 |
---|
843 | !!---------------------------------------------------------------------- |
---|
844 | ! |
---|
845 | READ ( numnam_ref, namtra_qsr, IOSTAT = ios, ERR = 901) |
---|
846 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtra_qsr in reference namelist' ) |
---|
847 | READ ( numnam_cfg, namtra_qsr, IOSTAT = ios, ERR = 902) |
---|
848 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namtra_qsr in configuration namelist' ) |
---|
849 | IF(lwm) WRITE ( numond, namtra_qsr ) |
---|
850 | ! |
---|
851 | IF(lwp) THEN !** control print **! |
---|
852 | WRITE(numout,*) |
---|
853 | WRITE(numout,*) 'tra_qsr_init : penetration of the surface solar radiation' |
---|
854 | WRITE(numout,*) '~~~~~~~~~~~~' |
---|
855 | WRITE(numout,*) ' Namelist namtra_qsr : set the parameter of penetration' |
---|
856 | WRITE(numout,*) ' RGB (Red-Green-Blue) light penetration ln_qsr_rgb = ', ln_qsr_rgb |
---|
857 | WRITE(numout,*) ' 2 band light penetration ln_qsr_2bd = ', ln_qsr_2bd |
---|
858 | WRITE(numout,*) ' bio-model light penetration ln_qsr_bio = ', ln_qsr_bio |
---|
859 | WRITE(numout,*) ' RGB : Chl data (=1) or cst value (=0) nn_chldta = ', nn_chldta |
---|
860 | WRITE(numout,*) ' RGB & 2 bands: fraction of light (rn_si1) rn_abs = ', rn_abs |
---|
861 | WRITE(numout,*) ' RGB & 2 bands: shortess attenuation depth rn_si0 = ', rn_si0 |
---|
862 | WRITE(numout,*) ' 2 bands: longest attenuation depth rn_si1 = ', rn_si1 |
---|
863 | WRITE(numout,*) |
---|
864 | ENDIF |
---|
865 | ! |
---|
866 | ioptio = 0 !** Parameter control **! |
---|
867 | IF( ln_qsr_rgb ) ioptio = ioptio + 1 |
---|
868 | IF( ln_qsr_2bd ) ioptio = ioptio + 1 |
---|
869 | IF( ln_qsr_bio ) ioptio = ioptio + 1 |
---|
870 | ! |
---|
871 | IF( ioptio /= 1 ) CALL ctl_stop( 'Choose ONE type of light penetration in namelist namtra_qsr', & |
---|
872 | & ' 2 bands, 3 RGB bands or bio-model light penetration' ) |
---|
873 | ! |
---|
874 | IF( ln_qsr_rgb .AND. nn_chldta == 0 ) nqsr = np_RGB |
---|
875 | IF( ln_qsr_rgb .AND. nn_chldta == 1 ) nqsr = np_RGBc |
---|
876 | IF( ln_qsr_2bd ) nqsr = np_2BD |
---|
877 | IF( ln_qsr_bio ) nqsr = np_BIO |
---|
878 | ! |
---|
879 | ! !** Initialisation **! |
---|
880 | ! |
---|
881 | ! !== Infrared attenuation ==! (all schemes) |
---|
882 | ! !============================! |
---|
883 | ! |
---|
884 | r1_si0 = 1._wp / rn_si0 ! inverse of infrared attenuation length |
---|
885 | ! |
---|
886 | nk0 = qsr_ext_lev( rn_si0, rn_abs ) ! level of light extinction |
---|
887 | ! |
---|
888 | IF(lwp) WRITE(numout,*) ' ==>>> Infrared light attenuation' |
---|
889 | IF(lwp) WRITE(numout,*) ' level of infrared extinction = ', nk0, ' ref depth = ', gdepw_1d(nk0+1), ' m' |
---|
890 | IF(lwp) WRITE(numout,*) |
---|
891 | ! |
---|
892 | SELECT CASE( nqsr ) |
---|
893 | ! |
---|
894 | CASE( np_RGBc, np_RGB ) !== Red-Green-Blue light attenuation ==! (Chl data or constant) |
---|
895 | ! !========================================! |
---|
896 | ! |
---|
897 | IF( nqsr == np_RGB ) THEN ; zchl = 0.05 ! constant Chl value |
---|
898 | ELSE ; zchl = 0.03 ! minimum Chl value |
---|
899 | ENDIF |
---|
900 | zchl = MAX( 0.03_wp , MIN( zchl , 10._wp) ) ! NB. make sure that chosen value verifies: 0.03 < zchl < 10 |
---|
901 | nc_rgb = NINT( 41 + 20.*LOG10(zchl) + 1.e-15 ) ! Convert Chl value to attenuation coefficient look-up table index |
---|
902 | ! |
---|
903 | CALL trc_oce_rgb( rkrgb ) ! tabulated attenuation coef. |
---|
904 | ! |
---|
905 | zVlp = ( 1._wp - rn_abs ) / 3._wp ! visible light equi-partition |
---|
906 | ! |
---|
907 | ! 1 / length ! attenuation length ! attenuation level |
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908 | r1_LR = rkrgb(3,nc_rgb) ; zLR = 1._wp / r1_LR ; nkR = qsr_ext_lev( zLR, zVlp ) ! Red |
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909 | r1_LG = rkrgb(2,nc_rgb) ; zLG = 1._wp / r1_LG ; nkG = qsr_ext_lev( zLG, zVlp ) ! Green |
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910 | r1_LB = rkrgb(1,nc_rgb) ; zLB = 1._wp / r1_LB ; nkB = qsr_ext_lev( zLB, zVlp ) ! Blue |
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911 | ! |
---|
912 | nkV = nkB ! maximum level of light penetration |
---|
913 | ! |
---|
914 | IF( nqsr == np_RGB ) THEN |
---|
915 | IF(lwp) WRITE(numout,*) ' ==>>> RGB: light attenuation with a constant Chlorophyll = ', zchl |
---|
916 | ELSE |
---|
917 | IF(lwp) WRITE(numout,*) ' ==>>> RGB: light attenuation using Chlorophyll data with min(Chl) = ', zchl |
---|
918 | ENDIF |
---|
919 | IF(lwp) WRITE(numout,*) ' level of Red extinction = ', nkR, ' ref depth = ', gdepw_1d(nkR+1), ' m' |
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920 | IF(lwp) WRITE(numout,*) ' level of Green extinction = ', nkG, ' ref depth = ', gdepw_1d(nkG+1), ' m' |
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921 | IF(lwp) WRITE(numout,*) ' level of Blue extinction = ', nkB, ' ref depth = ', gdepw_1d(nkB+1), ' m' |
---|
922 | IF(lwp) WRITE(numout,*) |
---|
923 | ! |
---|
924 | IF( nqsr == np_RGBc ) THEN ! Chl data : set sf_chl structure |
---|
925 | IF(lwp) WRITE(numout,*) ' ==>>> Chlorophyll read in a file' |
---|
926 | ALLOCATE( sf_chl(1), STAT=ierror ) |
---|
927 | IF( ierror > 0 ) THEN |
---|
928 | CALL ctl_stop( 'tra_qsr_init: unable to allocate sf_chl structure' ) ; RETURN |
---|
929 | ENDIF |
---|
930 | ALLOCATE( sf_chl(1)%fnow(jpi,jpj,1) ) |
---|
931 | IF( sn_chl%ln_tint ) ALLOCATE( sf_chl(1)%fdta(jpi,jpj,1,2) ) |
---|
932 | ! ! fill sf_chl with sn_chl and control print |
---|
933 | CALL fld_fill( sf_chl, (/ sn_chl /), cn_dir, 'tra_qsr_init', & |
---|
934 | & 'Solar penetration function of read chlorophyll', 'namtra_qsr' , no_print ) |
---|
935 | ENDIF |
---|
936 | ! |
---|
937 | CASE( np_2BD ) !== 2 bands light attenuation (IR+ visible light) ==! |
---|
938 | ! |
---|
939 | ! |
---|
940 | r1_si1 = 1._wp / rn_si1 ! inverse of visible light attenuation |
---|
941 | zVlp = ( 1._wp - rn_abs ) ! visible light partition |
---|
942 | nkV = qsr_ext_lev( rn_si1, zVlp ) ! level of visible light extinction |
---|
943 | ! |
---|
944 | IF(lwp) WRITE(numout,*) ' ==>>> 2 bands attenuation (Infrared + Visible light) ' |
---|
945 | IF(lwp) WRITE(numout,*) ' level of visible light extinction = ', nkV, ' ref depth = ', gdepw_1d(nkV+1), ' m' |
---|
946 | IF(lwp) WRITE(numout,*) |
---|
947 | ! |
---|
948 | CASE( np_BIO ) !== BIO light penetration ==! |
---|
949 | ! |
---|
950 | IF(lwp) WRITE(numout,*) ' ==>>> bio-model light penetration' |
---|
951 | IF( .NOT.lk_top ) CALL ctl_stop( 'No bio model : ln_qsr_bio = true impossible ' ) |
---|
952 | ! |
---|
953 | CALL trc_oce_rgb( rkrgb ) ! tabulated attenuation coef. |
---|
954 | ! |
---|
955 | nkV = trc_oce_ext_lev( r_si2, 33._wp ) ! maximum level of light extinction |
---|
956 | ! |
---|
957 | IF(lwp) WRITE(numout,*) ' level of light extinction = ', nkV, ' ref depth = ', gdepw_1d(nkV+1), ' m' |
---|
958 | ! |
---|
959 | END SELECT |
---|
960 | ! |
---|
961 | nksr = nkV ! name of max level of light extinction used in traatf(_qco).F90 |
---|
962 | ! |
---|
963 | #if ! defined key_RK3 |
---|
964 | qsr_hc(:,:,:) = 0._wp ! MLF : now qsr heat content set to zero where it will not be computed |
---|
965 | #endif |
---|
966 | ! |
---|
967 | ! ! Sea-ice : 1st ocean level attenuation coefficient (used in sbcssm) |
---|
968 | IF( iom_varid( numror, 'fraqsr_1lev', ldstop = .FALSE. ) > 0 ) THEN |
---|
969 | CALL iom_get( numror, jpdom_auto, 'fraqsr_1lev' , fraqsr_1lev ) |
---|
970 | ELSE |
---|
971 | fraqsr_1lev(:,:) = 1._wp ! default : no penetration |
---|
972 | ENDIF |
---|
973 | ! |
---|
974 | END SUBROUTINE tra_qsr_init |
---|
975 | |
---|
976 | !!====================================================================== |
---|
977 | END MODULE traqsr |
---|