1 | MODULE zdfphy |
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2 | !!====================================================================== |
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3 | !! *** MODULE zdfphy *** |
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4 | !! Vertical ocean physics : manager of all vertical physics packages |
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5 | !!====================================================================== |
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6 | !! History : 4.0 ! 2017-04 (G. Madec) original code |
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7 | !!---------------------------------------------------------------------- |
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8 | |
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9 | !!---------------------------------------------------------------------- |
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10 | !! zdf_phy_init : initialization of all vertical physics packages |
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11 | !! zdf_phy : upadate at each time-step the vertical mixing coeff. |
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12 | !!---------------------------------------------------------------------- |
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13 | USE par_oce ! ocean parameters |
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14 | USE zdf_oce ! vertical physics: shared variables |
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15 | USE zdfbfr ! vertical physics: bottom friction |
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16 | USE zdfric ! vertical physics: Richardson vertical mixing |
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17 | USE zdftke ! vertical physics: TKE vertical mixing |
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18 | USE zdfgls ! vertical physics: GLS vertical mixing |
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19 | USE zdfddm ! vertical physics: double diffusion mixing |
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20 | USE zdfevd ! vertical physics: convection via enhanced vertical diffusion |
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21 | USE zdfiwm ! vertical physics: internal wave-induced mixing |
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22 | USE zdfswm ! vertical physics: surface wave-induced mixing |
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23 | USE zdfmxl ! vertical physics: mixed layer |
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24 | USE tranpc ! convection: non penetrative adjustment |
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25 | USE trc_oce ! variables shared between passive tracer & ocean |
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26 | USE sbc_oce ! surface module (only for nn_isf in the option compatibility test) |
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27 | USE sbcrnf ! surface boundary condition: runoff variables |
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28 | ! |
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29 | USE in_out_manager ! I/O manager |
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30 | USE iom ! IOM library |
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31 | USE lbclnk ! lateral boundary conditions |
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32 | USE lib_mpp ! distribued memory computing |
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33 | |
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34 | IMPLICIT NONE |
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35 | PRIVATE |
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36 | |
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37 | PUBLIC zdf_phy_init ! called by nemogcm.F90 |
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38 | PUBLIC zdf_phy ! called by step.F90 |
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39 | |
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40 | INTEGER :: nzdf_phy ! type of vertical closure used |
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41 | ! ! associated indicators |
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42 | INTEGER, PARAMETER :: np_CST = 1 ! Constant Kz |
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43 | INTEGER, PARAMETER :: np_RIC = 2 ! Richardson number dependent Kz |
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44 | INTEGER, PARAMETER :: np_TKE = 3 ! Turbulente Kinetic Eenergy closure scheme for Kz |
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45 | INTEGER, PARAMETER :: np_GLS = 4 ! Generic Length Scale closure scheme for Kz |
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46 | |
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47 | !!---------------------------------------------------------------------- |
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48 | !! NEMO/OPA 4.0 , NEMO Consortium (2017) |
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49 | !! $Id$ |
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50 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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51 | !!---------------------------------------------------------------------- |
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52 | CONTAINS |
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53 | |
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54 | SUBROUTINE zdf_phy_init |
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55 | !!---------------------------------------------------------------------- |
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56 | !! *** ROUTINE zdf_phy_init *** |
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57 | !! |
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58 | !! ** Purpose : initializations of the vertical ocean physics |
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59 | !! |
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60 | !! ** Method : Read namelist namzdf, control logicals |
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61 | !! set horizontal shape and vertical profile of background mixing coef. |
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62 | !!---------------------------------------------------------------------- |
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63 | INTEGER :: ioptio, ios ! local integers |
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64 | !! |
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65 | NAMELIST/namzdf/ ln_zdfcst, ln_zdfric, ln_zdftke, ln_zdfgls, & ! type of closure scheme |
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66 | & ln_zdfevd, nn_evdm, rn_evd , & ! convection : evd |
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67 | & ln_zdfnpc, nn_npc , nn_npcp, & ! convection : npc |
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68 | & ln_zdfddm, rn_avts, rn_hsbfr, & ! double diffusion |
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69 | & ln_zdfswm, & ! surface wave-induced mixing |
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70 | & ln_zdfiwm, & ! internal - - - |
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71 | & ln_zdfexp, nn_zdfexp, & ! time-stepping |
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72 | & rn_avm0, rn_avt0, nn_avb, nn_havtb ! coefficients |
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73 | !!---------------------------------------------------------------------- |
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74 | ! |
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75 | ! !== Namelist ==! |
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76 | REWIND( numnam_ref ) ! Namelist namzdf in reference namelist : Vertical mixing parameters |
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77 | READ ( numnam_ref, namzdf, IOSTAT = ios, ERR = 901) |
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78 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namzdf in reference namelist', lwp ) |
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79 | ! |
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80 | REWIND( numnam_cfg ) ! Namelist namzdf in reference namelist : Vertical mixing parameters |
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81 | READ ( numnam_cfg, namzdf, IOSTAT = ios, ERR = 902 ) |
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82 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namzdf in configuration namelist', lwp ) |
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83 | IF(lwm) WRITE ( numond, namzdf ) |
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84 | ! |
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85 | IF(lwp) THEN ! Parameter print |
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86 | WRITE(numout,*) |
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87 | WRITE(numout,*) 'zdf_phy_init: vertical physics' |
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88 | WRITE(numout,*) '~~~~~~~~~~~~' |
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89 | WRITE(numout,*) ' Namelist namzdf : set vertical mixing mixing parameters' |
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90 | WRITE(numout,*) ' vertical closure scheme' |
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91 | WRITE(numout,*) ' constant vertical mixing coefficient ln_zdfcst = ', ln_zdfcst |
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92 | WRITE(numout,*) ' constant vertical mixing coefficient ln_zdfric = ', ln_zdfric |
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93 | WRITE(numout,*) ' constant vertical mixing coefficient ln_zdftke = ', ln_zdftke |
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94 | WRITE(numout,*) ' constant vertical mixing coefficient ln_zdfgls = ', ln_zdfgls |
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95 | WRITE(numout,*) ' convection: ' |
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96 | WRITE(numout,*) ' enhanced vertical diffusion ln_zdfevd = ', ln_zdfevd |
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97 | WRITE(numout,*) ' applied on momentum (=1/0) nn_evdm = ', nn_evdm |
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98 | WRITE(numout,*) ' vertical coefficient for evd rn_evd = ', rn_evd |
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99 | WRITE(numout,*) ' non-penetrative convection (npc) ln_zdfnpc = ', ln_zdfnpc |
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100 | WRITE(numout,*) ' npc call frequency nn_npc = ', nn_npc |
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101 | WRITE(numout,*) ' npc print frequency nn_npcp = ', nn_npcp |
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102 | WRITE(numout,*) ' double diffusive mixing ln_zdfddm = ', ln_zdfddm |
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103 | WRITE(numout,*) ' maximum avs for dd mixing rn_avts = ', rn_avts |
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104 | WRITE(numout,*) ' heat/salt buoyancy flux ratio rn_hsbfr= ', rn_hsbfr |
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105 | WRITE(numout,*) ' gravity wave-induced mixing' |
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106 | WRITE(numout,*) ' surface wave (Qiao et al 2010) ln_zdfswm = ', ln_zdfswm ! surface wave induced mixing |
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107 | WRITE(numout,*) ' internal wave (de Lavergne et al 2017) ln_zdfiwm = ', ln_zdfiwm |
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108 | WRITE(numout,*) ' time-steping scheme' |
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109 | WRITE(numout,*) ' time splitting (T) / implicit (F) ln_zdfexp = ', ln_zdfexp |
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110 | WRITE(numout,*) ' number of sub-time step (ln_zdfexp=T) nn_zdfexp = ', nn_zdfexp |
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111 | WRITE(numout,*) ' coefficients : ' |
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112 | WRITE(numout,*) ' vertical eddy viscosity rn_avm0 = ', rn_avm0 |
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113 | WRITE(numout,*) ' vertical eddy diffusivity rn_avt0 = ', rn_avt0 |
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114 | WRITE(numout,*) ' constant background or profile nn_avb = ', nn_avb |
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115 | WRITE(numout,*) ' horizontal variation for avtb nn_havtb = ', nn_havtb |
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116 | ENDIF |
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117 | |
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118 | ! !== Background eddy viscosity and diffusivity ==! |
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119 | IF( nn_avb == 0 ) THEN ! Define avmb, avtb from namelist parameter |
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120 | avmb(:) = rn_avm0 |
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121 | avtb(:) = rn_avt0 |
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122 | ELSE ! Background profile of avt (fit a theoretical/observational profile (Krauss 1990) |
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123 | avmb(:) = rn_avm0 |
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124 | avtb(:) = rn_avt0 + ( 3.e-4_wp - 2._wp * rn_avt0 ) * 1.e-4_wp * gdepw_1d(:) ! m2/s |
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125 | IF(ln_sco .AND. lwp) CALL ctl_warn( 'avtb profile not valid in sco' ) |
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126 | ENDIF |
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127 | ! ! 2D shape of the avtb |
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128 | avtb_2d(:,:) = 1._wp ! uniform |
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129 | ! |
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130 | IF( nn_havtb == 1 ) THEN ! decrease avtb by a factor of ten in the equatorial band |
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131 | ! ! -15S -5S : linear decrease from avt0 to avt0/10. |
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132 | ! ! -5S +5N : cst value avt0/10. |
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133 | ! ! 5N 15N : linear increase from avt0/10, to avt0 |
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134 | WHERE(-15. <= gphit .AND. gphit < -5 ) avtb_2d = (1. - 0.09 * (gphit + 15.)) |
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135 | WHERE( -5. <= gphit .AND. gphit < 5 ) avtb_2d = 0.1 |
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136 | WHERE( 5. <= gphit .AND. gphit < 15 ) avtb_2d = (0.1 + 0.09 * (gphit - 5.)) |
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137 | ENDIF |
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138 | ! |
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139 | ! ! set 1st/last level Av to zero one for all |
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140 | avt(:,:,1) = 0._wp ; avs(:,:,1) = 0._wp ; avm(:,:,1) = 0._wp |
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141 | |
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142 | ! !== Convection ==! |
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143 | ! |
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144 | IF( ln_zdfnpc .AND. ln_zdfevd ) CALL ctl_stop( 'zdf_phy_init: chose between ln_zdfnpc and ln_zdfevd' ) |
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145 | IF( lk_top .AND. ln_zdfnpc ) CALL ctl_stop( 'zdf_phy_init: npc scheme is not working with key_top' ) |
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146 | IF(lwp) THEN |
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147 | WRITE(numout,*) |
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148 | IF ( ln_zdfnpc ) THEN ; WRITE(numout,*) ' convection: use non penetrative convective scheme' |
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149 | ELSEIF( ln_zdfevd ) THEN ; WRITE(numout,*) ' convection: use enhanced vertical diffusion scheme' |
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150 | ELSE ; WRITE(numout,*) ' convection: no specific scheme used' |
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151 | ENDIF |
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152 | ENDIF |
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153 | |
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154 | IF(lwp) THEN !== Double Diffusion Mixing parameterization ==! (ddm) |
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155 | WRITE(numout,*) |
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156 | IF( ln_zdfddm ) THEN ; WRITE(numout,*) ' use double diffusive mixing: avs /= avt' |
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157 | ELSE ; WRITE(numout,*) ' No double diffusive mixing: avs = avt' |
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158 | ENDIF |
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159 | ENDIF |
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160 | |
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161 | ! !== type of vertical turbulent closure ==! (set nzdf_phy) |
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162 | ioptio = 0 |
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163 | IF( ln_zdfcst ) THEN ; ioptio = ioptio + 1 ; nzdf_phy = np_CST ; ENDIF |
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164 | IF( ln_zdfric ) THEN ; ioptio = ioptio + 1 ; nzdf_phy = np_RIC ; CALL zdf_ric_init ; ENDIF |
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165 | IF( ln_zdftke ) THEN ; ioptio = ioptio + 1 ; nzdf_phy = np_TKE ; CALL zdf_tke_init ; ENDIF |
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166 | IF( ln_zdfgls ) THEN ; ioptio = ioptio + 1 ; nzdf_phy = np_GLS ; CALL zdf_gls_init ; ENDIF |
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167 | ! |
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168 | IF( ioptio /= 1 ) CALL ctl_stop( 'zdf_phy_init: one and only one vertical diffusion option has to be defined ' ) |
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169 | IF( ln_isfcav ) THEN |
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170 | IF( ln_zdfric .OR. ln_zdfgls ) CALL ctl_stop( 'zdf_phy_init: zdfric and zdfgls never tested with ice shelves cavities ' ) |
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171 | ENDIF |
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172 | |
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173 | ! !== gravity wave-driven mixing ==! |
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174 | IF( ln_zdfiwm ) CALL zdf_iwm_init ! internal wave-driven mixing |
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175 | IF( ln_zdfswm ) CALL zdf_swm_init ! surface wave-driven mixing |
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176 | |
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177 | ! !== bottom friction ==! |
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178 | CALL zdf_bfr_init |
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179 | ! |
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180 | ! !== time-stepping ==! |
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181 | ! Check/update of time stepping done in dynzdf_init/trazdf_init |
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182 | !!gm move it here ? |
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183 | ! |
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184 | END SUBROUTINE zdf_phy_init |
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185 | |
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186 | |
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187 | SUBROUTINE zdf_phy( kt ) |
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188 | !!---------------------------------------------------------------------- |
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189 | !! *** ROUTINE zdf_phy *** |
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190 | !! |
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191 | !! ** Purpose : Update ocean physics at each time-step |
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192 | !! |
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193 | !! ** Method : |
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194 | !! |
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195 | !! ** Action : avm, avt vertical eddy viscosity and diffusivity at w-points |
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196 | !! nmld ??? mixed layer depth in level and meters <<<<====verifier ! |
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197 | !! bottom stress..... <<<<====verifier ! |
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198 | !!---------------------------------------------------------------------- |
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199 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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200 | ! |
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201 | INTEGER :: ji, jj, jk ! dummy loop indice |
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202 | !! --------------------------------------------------------------------- |
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203 | ! |
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204 | CALL zdf_bfr( kt ) !* bottom friction (if quadratic) |
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205 | ! |
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206 | SELECT CASE ( nzdf_phy ) !* Vertical eddy viscosity and diffusivity coefficients at w-points |
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207 | CASE( np_RIC ) ; CALL zdf_ric( kt ) ! Richardson number dependent Kz |
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208 | CASE( np_TKE ) ; CALL zdf_tke( kt ) ! TKE closure scheme for Kz |
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209 | CASE( np_GLS ) ; CALL zdf_gls( kt ) ! GLS closure scheme for Kz |
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210 | CASE( np_CST ) ! Constant Kz (reset avt, avm to the background value) |
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211 | avt(2:jpim1,2:jpjm1,1:jpkm1) = rn_avt0 * wmask(2:jpim1,2:jpjm1,1:jpkm1) |
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212 | avm(2:jpim1,2:jpjm1,1:jpkm1) = rn_avm0 * wmask(2:jpim1,2:jpjm1,1:jpkm1) |
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213 | END SELECT |
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214 | ! |
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215 | IF( ln_rnf_mouth ) THEN !* increase diffusivity at rivers mouths |
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216 | DO jk = 2, nkrnf |
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217 | avt(:,:,jk) = avt(:,:,jk) + 2._wp * rn_avt_rnf * rnfmsk(:,:) * wmask(:,:,jk) |
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218 | END DO |
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219 | ENDIF |
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220 | ! |
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221 | IF( ln_zdfevd ) CALL zdf_evd( kt ) !* convection: enhanced vertical eddy diffusivity |
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222 | ! |
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223 | ! !* double diffusive mixing |
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224 | IF( ln_zdfddm ) THEN ! update avt and compute avs |
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225 | CALL zdf_ddm( kt ) |
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226 | ELSE ! same mixing on all tracers |
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227 | avs(2:jpim1,2:jpjm1,1:jpkm1) = avt(2:jpim1,2:jpjm1,1:jpkm1) |
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228 | ENDIF |
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229 | ! |
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230 | ! !* wave-induced mixing |
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231 | IF( ln_zdfswm ) CALL zdf_swm( kt ) ! surface wave (Qiao et al. 2004) |
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232 | IF( ln_zdfiwm ) CALL zdf_iwm( kt ) ! internal wave (de Lavergne et al 2017) |
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233 | |
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234 | |
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235 | ! !* Lateral boundary conditions (sign unchanged) |
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236 | CALL lbc_lnk( avm, 'W', 1. ) |
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237 | CALL lbc_lnk( avt, 'W', 1. ) |
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238 | CALL lbc_lnk( avs, 'W', 1. ) |
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239 | ! |
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240 | !!gm ===>>> TO BE REMOVED |
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241 | DO jk = 1, jpkm1 !* vertical eddy viscosity at wu- and wv-points |
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242 | DO jj = 2, jpjm1 |
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243 | DO ji = 2, jpim1 |
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244 | avmu(ji,jj,jk) = 0.5 * ( avm(ji,jj,jk) + avm(ji+1,jj ,jk) ) * wumask(ji,jj,jk) |
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245 | avmv(ji,jj,jk) = 0.5 * ( avm(ji,jj,jk) + avm(ji ,jj+1,jk) ) * wvmask(ji,jj,jk) |
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246 | END DO |
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247 | END DO |
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248 | END DO |
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249 | CALL lbc_lnk( avmu, 'U', 1. ) ; CALL lbc_lnk( avmv, 'V', 1. ) ! Lateral boundary conditions |
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250 | !!gm end |
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251 | |
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252 | |
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253 | CALL zdf_mxl( kt ) !* mixed layer depth, and level |
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254 | |
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255 | !!gm !==>> to be moved in zdftke & zdfgls |
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256 | ! write TKE or GLS information in the restart file |
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257 | IF( lrst_oce .AND. ln_zdftke ) CALL tke_rst( kt, 'WRITE' ) |
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258 | IF( lrst_oce .AND. ln_zdfgls ) CALL gls_rst( kt, 'WRITE' ) |
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259 | ! |
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260 | END SUBROUTINE zdf_phy |
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261 | |
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262 | !!====================================================================== |
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263 | END MODULE zdfphy |
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