1 | MODULE domvvl |
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2 | !!====================================================================== |
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3 | !! *** MODULE domvvl *** |
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4 | !! Ocean : |
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5 | !!====================================================================== |
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6 | !! History : 2.0 ! 2006-06 (B. Levier, L. Marie) original code |
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7 | !! 3.1 ! 2009-02 (G. Madec, M. Leclair, R. Benshila) pure z* coordinate |
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8 | !! 3.3 ! 2011-10 (M. Leclair) totally rewrote domvvl: |
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9 | !! vvl option includes z_star and z_tilde coordinates |
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10 | !! 3.6 ! 2014-11 (P. Mathiot) add ice shelf capability |
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11 | !!---------------------------------------------------------------------- |
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12 | |
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13 | !!---------------------------------------------------------------------- |
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14 | !! dom_vvl_init : define initial vertical scale factors, depths and column thickness |
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15 | !! dom_vvl_sf_nxt : Compute next vertical scale factors |
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16 | !! dom_vvl_sf_swp : Swap vertical scale factors and update the vertical grid |
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17 | !! dom_vvl_interpol : Interpolate vertical scale factors from one grid point to another |
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18 | !! dom_vvl_rst : read/write restart file |
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19 | !! dom_vvl_ctl : Check the vvl options |
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20 | !!---------------------------------------------------------------------- |
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21 | USE oce ! ocean dynamics and tracers |
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22 | USE phycst ! physical constant |
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23 | USE dom_oce ! ocean space and time domain |
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24 | USE sbc_oce ! ocean surface boundary condition |
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25 | USE restart ! ocean restart |
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26 | ! |
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27 | USE in_out_manager ! I/O manager |
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28 | USE iom ! I/O manager library |
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29 | USE lib_mpp ! distributed memory computing library |
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30 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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31 | USE wrk_nemo ! Memory allocation |
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32 | USE timing ! Timing |
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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 dom_vvl_init ! called by domain.F90 |
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38 | PUBLIC dom_vvl_sf_nxt ! called by step.F90 |
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39 | PUBLIC dom_vvl_sf_swp ! called by step.F90 |
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40 | PUBLIC dom_vvl_interpol ! called by dynnxt.F90 |
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41 | |
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42 | ! !!* Namelist nam_vvl |
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43 | LOGICAL , PUBLIC :: ln_vvl_zstar = .FALSE. ! zstar vertical coordinate |
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44 | LOGICAL , PUBLIC :: ln_vvl_ztilde = .FALSE. ! ztilde vertical coordinate |
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45 | LOGICAL , PUBLIC :: ln_vvl_layer = .FALSE. ! level vertical coordinate |
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46 | LOGICAL , PUBLIC :: ln_vvl_ztilde_as_zstar = .FALSE. ! ztilde vertical coordinate |
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47 | LOGICAL , PUBLIC :: ln_vvl_zstar_at_eqtor = .FALSE. ! ztilde vertical coordinate |
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48 | LOGICAL , PUBLIC :: ln_vvl_kepe = .FALSE. ! kinetic/potential energy transfer |
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49 | ! ! conservation: not used yet |
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50 | REAL(wp) :: rn_ahe3 ! thickness diffusion coefficient |
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51 | REAL(wp) :: rn_rst_e3t ! ztilde to zstar restoration timescale [days] |
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52 | REAL(wp) :: rn_lf_cutoff ! cutoff frequency for low-pass filter [days] |
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53 | REAL(wp) :: rn_zdef_max ! maximum fractional e3t deformation |
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54 | LOGICAL , PUBLIC :: ln_vvl_dbg = .FALSE. ! debug control prints |
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55 | |
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56 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: un_td, vn_td ! thickness diffusion transport |
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57 | REAL(wp) , ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: hdiv_lf ! low frequency part of hz divergence |
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58 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: tilde_e3t_b, tilde_e3t_n ! baroclinic scale factors |
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59 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: tilde_e3t_a, dtilde_e3t_a ! baroclinic scale factors |
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60 | REAL(wp) , ALLOCATABLE, SAVE, DIMENSION(:,:) :: frq_rst_e3t ! retoring period for scale factors |
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61 | REAL(wp) , ALLOCATABLE, SAVE, DIMENSION(:,:) :: frq_rst_hdv ! retoring period for low freq. divergence |
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62 | |
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63 | !! * Substitutions |
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64 | # include "vectopt_loop_substitute.h90" |
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65 | !!---------------------------------------------------------------------- |
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66 | !! NEMO/OPA 3.3 , NEMO-Consortium (2010) |
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67 | !! $Id$ |
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68 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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69 | !!---------------------------------------------------------------------- |
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70 | CONTAINS |
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71 | |
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72 | INTEGER FUNCTION dom_vvl_alloc() |
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73 | !!---------------------------------------------------------------------- |
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74 | !! *** FUNCTION dom_vvl_alloc *** |
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75 | !!---------------------------------------------------------------------- |
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76 | IF( ln_vvl_zstar ) dom_vvl_alloc = 0 |
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77 | IF( ln_vvl_ztilde .OR. ln_vvl_layer ) THEN |
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78 | ALLOCATE( tilde_e3t_b(jpi,jpj,jpk) , tilde_e3t_n(jpi,jpj,jpk) , tilde_e3t_a(jpi,jpj,jpk) , & |
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79 | & dtilde_e3t_a(jpi,jpj,jpk) , un_td (jpi,jpj,jpk) , vn_td (jpi,jpj,jpk) , & |
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80 | & STAT = dom_vvl_alloc ) |
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81 | IF( lk_mpp ) CALL mpp_sum ( dom_vvl_alloc ) |
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82 | IF( dom_vvl_alloc /= 0 ) CALL ctl_warn('dom_vvl_alloc: failed to allocate arrays') |
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83 | un_td = 0._wp |
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84 | vn_td = 0._wp |
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85 | ENDIF |
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86 | IF( ln_vvl_ztilde ) THEN |
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87 | ALLOCATE( frq_rst_e3t(jpi,jpj) , frq_rst_hdv(jpi,jpj) , hdiv_lf(jpi,jpj,jpk) , STAT= dom_vvl_alloc ) |
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88 | IF( lk_mpp ) CALL mpp_sum ( dom_vvl_alloc ) |
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89 | IF( dom_vvl_alloc /= 0 ) CALL ctl_warn('dom_vvl_alloc: failed to allocate arrays') |
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90 | ENDIF |
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91 | ! |
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92 | END FUNCTION dom_vvl_alloc |
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93 | |
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94 | |
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95 | SUBROUTINE dom_vvl_init |
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96 | !!---------------------------------------------------------------------- |
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97 | !! *** ROUTINE dom_vvl_init *** |
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98 | !! |
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99 | !! ** Purpose : Initialization of all scale factors, depths |
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100 | !! and water column heights |
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101 | !! |
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102 | !! ** Method : - use restart file and/or initialize |
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103 | !! - interpolate scale factors |
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104 | !! |
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105 | !! ** Action : - e3t_(n/b) and tilde_e3t_(n/b) |
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106 | !! - Regrid: e3(u/v)_n |
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107 | !! e3(u/v)_b |
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108 | !! e3w_n |
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109 | !! e3(u/v)w_b |
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110 | !! e3(u/v)w_n |
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111 | !! gdept_n, gdepw_n and gde3w_n |
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112 | !! - h(t/u/v)_0 |
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113 | !! - frq_rst_e3t and frq_rst_hdv |
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114 | !! |
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115 | !! Reference : Leclair, M., and G. Madec, 2011, Ocean Modelling. |
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116 | !!---------------------------------------------------------------------- |
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117 | INTEGER :: ji, jj, jk |
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118 | INTEGER :: ii0, ii1, ij0, ij1 |
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119 | REAL(wp):: zcoef |
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120 | !!---------------------------------------------------------------------- |
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121 | ! |
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122 | IF( nn_timing == 1 ) CALL timing_start('dom_vvl_init') |
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123 | ! |
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124 | IF(lwp) WRITE(numout,*) |
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125 | IF(lwp) WRITE(numout,*) 'dom_vvl_init : Variable volume activated' |
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126 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~' |
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127 | ! |
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128 | CALL dom_vvl_ctl ! choose vertical coordinate (z_star, z_tilde or layer) |
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129 | ! |
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130 | ! ! Allocate module arrays |
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131 | IF( dom_vvl_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'dom_vvl_init : unable to allocate arrays' ) |
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132 | ! |
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133 | ! ! Read or initialize e3t_(b/n), tilde_e3t_(b/n) and hdiv_lf |
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134 | CALL dom_vvl_rst( nit000, 'READ' ) |
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135 | e3t_a(:,:,jpk) = e3t_0(:,:,jpk) ! last level always inside the sea floor set one for all |
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136 | ! |
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137 | ! !== Set of all other vertical scale factors ==! (now and before) |
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138 | ! ! Horizontal interpolation of e3t |
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139 | CALL dom_vvl_interpol( e3t_b(:,:,:), e3u_b(:,:,:), 'U' ) ! from T to U |
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140 | CALL dom_vvl_interpol( e3t_n(:,:,:), e3u_n(:,:,:), 'U' ) |
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141 | CALL dom_vvl_interpol( e3t_b(:,:,:), e3v_b(:,:,:), 'V' ) ! from T to V |
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142 | CALL dom_vvl_interpol( e3t_n(:,:,:), e3v_n(:,:,:), 'V' ) |
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143 | CALL dom_vvl_interpol( e3u_n(:,:,:), e3f_n(:,:,:), 'F' ) ! from U to F |
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144 | ! ! Vertical interpolation of e3t,u,v |
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145 | CALL dom_vvl_interpol( e3t_n(:,:,:), e3w_n (:,:,:), 'W' ) ! from T to W |
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146 | CALL dom_vvl_interpol( e3t_b(:,:,:), e3w_b (:,:,:), 'W' ) |
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147 | CALL dom_vvl_interpol( e3u_n(:,:,:), e3uw_n(:,:,:), 'UW' ) ! from U to UW |
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148 | CALL dom_vvl_interpol( e3u_b(:,:,:), e3uw_b(:,:,:), 'UW' ) |
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149 | CALL dom_vvl_interpol( e3v_n(:,:,:), e3vw_n(:,:,:), 'VW' ) ! from V to UW |
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150 | CALL dom_vvl_interpol( e3v_b(:,:,:), e3vw_b(:,:,:), 'VW' ) |
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151 | ! |
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152 | ! !== depth of t and w-point ==! (set the isf depth as it is in the initial timestep) |
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153 | gdept_n(:,:,1) = 0.5_wp * e3w_n(:,:,1) ! reference to the ocean surface (used for MLD and light penetration) |
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154 | gdepw_n(:,:,1) = 0.0_wp |
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155 | gde3w_n(:,:,1) = gdept_n(:,:,1) - sshn(:,:) ! reference to a common level z=0 for hpg |
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156 | gdept_b(:,:,1) = 0.5_wp * e3w_b(:,:,1) |
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157 | gdepw_b(:,:,1) = 0.0_wp |
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158 | DO jk = 2, jpk ! vertical sum |
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159 | DO jj = 1,jpj |
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160 | DO ji = 1,jpi |
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161 | ! zcoef = tmask - wmask ! 0 everywhere tmask = wmask, ie everywhere expect at jk = mikt |
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162 | ! ! 1 everywhere from mbkt to mikt + 1 or 1 (if no isf) |
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163 | ! ! 0.5 where jk = mikt |
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164 | !!gm ??????? BUG ? gdept_n as well as gde3w_n does not include the thickness of ISF ?? |
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165 | zcoef = ( tmask(ji,jj,jk) - wmask(ji,jj,jk) ) |
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166 | gdepw_n(ji,jj,jk) = gdepw_n(ji,jj,jk-1) + e3t_n(ji,jj,jk-1) |
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167 | gdept_n(ji,jj,jk) = zcoef * ( gdepw_n(ji,jj,jk ) + 0.5 * e3w_n(ji,jj,jk)) & |
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168 | & + (1-zcoef) * ( gdept_n(ji,jj,jk-1) + e3w_n(ji,jj,jk)) |
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169 | gde3w_n(ji,jj,jk) = gdept_n(ji,jj,jk) - sshn(ji,jj) |
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170 | gdepw_b(ji,jj,jk) = gdepw_b(ji,jj,jk-1) + e3t_b(ji,jj,jk-1) |
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171 | gdept_b(ji,jj,jk) = zcoef * ( gdepw_b(ji,jj,jk ) + 0.5 * e3w_b(ji,jj,jk)) & |
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172 | & + (1-zcoef) * ( gdept_b(ji,jj,jk-1) + e3w_b(ji,jj,jk)) |
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173 | END DO |
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174 | END DO |
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175 | END DO |
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176 | ! |
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177 | ! !== thickness of the water column !! (ocean portion only) |
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178 | ht_n(:,:) = e3t_n(:,:,1) * tmask(:,:,1) !!gm BUG : this should be 1/2 * e3w(k=1) .... |
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179 | hu_b(:,:) = e3u_b(:,:,1) * umask(:,:,1) |
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180 | hv_b(:,:) = e3u_b(:,:,1) * vmask(:,:,1) |
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181 | hu_n(:,:) = e3u_n(:,:,1) * umask(:,:,1) |
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182 | hv_n(:,:) = e3v_n(:,:,1) * vmask(:,:,1) |
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183 | DO jk = 2, jpkm1 |
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184 | ht_n(:,:) = ht_n(:,:) + e3t_n(:,:,jk) * tmask(:,:,jk) |
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185 | hu_b(:,:) = hu_b(:,:) + e3u_b(:,:,jk) * umask(:,:,jk) |
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186 | hu_n(:,:) = hu_n(:,:) + e3u_n(:,:,jk) * umask(:,:,jk) |
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187 | hv_b(:,:) = hv_b(:,:) + e3v_b(:,:,jk) * vmask(:,:,jk) |
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188 | hv_n(:,:) = hv_n(:,:) + e3v_n(:,:,jk) * vmask(:,:,jk) |
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189 | END DO |
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190 | ! |
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191 | ! !== inverse of water column thickness ==! (u- and v- points) |
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192 | r1_hu_b(:,:) = umask_i(:,:) / ( hu_b(:,:) + 1._wp - umask_i(:,:) ) ! _i mask due to ISF |
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193 | r1_hu_n(:,:) = umask_i(:,:) / ( hu_n(:,:) + 1._wp - umask_i(:,:) ) |
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194 | r1_hv_b(:,:) = vmask_i(:,:) / ( hv_b(:,:) + 1._wp - vmask_i(:,:) ) |
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195 | r1_hv_n(:,:) = vmask_i(:,:) / ( hv_n(:,:) + 1._wp - vmask_i(:,:) ) |
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196 | |
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197 | ! !== z_tilde coordinate case ==! (Restoring frequencies) |
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198 | IF( ln_vvl_ztilde ) THEN |
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199 | !!gm : idea: add here a READ in a file of custumized restoring frequency |
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200 | ! ! Values in days provided via the namelist |
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201 | ! ! use rsmall to avoid possible division by zero errors with faulty settings |
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202 | frq_rst_e3t(:,:) = 2._wp * rpi / ( MAX( rn_rst_e3t , rsmall ) * 86400.0_wp ) |
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203 | frq_rst_hdv(:,:) = 2._wp * rpi / ( MAX( rn_lf_cutoff, rsmall ) * 86400.0_wp ) |
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204 | ! |
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205 | IF( ln_vvl_ztilde_as_zstar ) THEN ! z-star emulation using z-tile |
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206 | frq_rst_e3t(:,:) = 0._wp !Ignore namelist settings |
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207 | frq_rst_hdv(:,:) = 1._wp / rdt |
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208 | ENDIF |
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209 | IF ( ln_vvl_zstar_at_eqtor ) THEN ! use z-star in vicinity of the Equator |
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210 | DO jj = 1, jpj |
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211 | DO ji = 1, jpi |
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212 | !!gm case |gphi| >= 6 degrees is useless initialized just above by default |
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213 | IF( ABS(gphit(ji,jj)) >= 6.) THEN |
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214 | ! values outside the equatorial band and transition zone (ztilde) |
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215 | frq_rst_e3t(ji,jj) = 2.0_wp * rpi / ( MAX( rn_rst_e3t , rsmall ) * 86400.e0_wp ) |
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216 | frq_rst_hdv(ji,jj) = 2.0_wp * rpi / ( MAX( rn_lf_cutoff, rsmall ) * 86400.e0_wp ) |
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217 | ELSEIF( ABS(gphit(ji,jj)) <= 2.5) THEN ! Equator strip ==> z-star |
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218 | ! values inside the equatorial band (ztilde as zstar) |
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219 | frq_rst_e3t(ji,jj) = 0.0_wp |
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220 | frq_rst_hdv(ji,jj) = 1.0_wp / rdt |
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221 | ELSE ! transition band (2.5 to 6 degrees N/S) |
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222 | ! ! (linearly transition from z-tilde to z-star) |
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223 | frq_rst_e3t(ji,jj) = 0.0_wp + (frq_rst_e3t(ji,jj)-0.0_wp)*0.5_wp & |
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224 | & * ( 1.0_wp - COS( rad*(ABS(gphit(ji,jj))-2.5_wp) & |
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225 | & * 180._wp / 3.5_wp ) ) |
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226 | frq_rst_hdv(ji,jj) = (1.0_wp / rdt) & |
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227 | & + ( frq_rst_hdv(ji,jj)-(1.e0_wp / rdt) )*0.5_wp & |
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228 | & * ( 1._wp - COS( rad*(ABS(gphit(ji,jj))-2.5_wp) & |
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229 | & * 180._wp / 3.5_wp ) ) |
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230 | ENDIF |
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231 | END DO |
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232 | END DO |
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233 | IF( cp_cfg == "orca" .AND. jp_cfg == 3 ) THEN ! ORCA2: Suppress ztilde in the Foxe Basin for ORCA2 |
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234 | ii0 = 103 ; ii1 = 111 |
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235 | ij0 = 128 ; ij1 = 135 ; |
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236 | frq_rst_e3t( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.0_wp |
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237 | frq_rst_hdv( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0_wp / rdt |
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238 | ENDIF |
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239 | ENDIF |
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240 | ENDIF |
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241 | ! |
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242 | IF( nn_timing == 1 ) CALL timing_stop('dom_vvl_init') |
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243 | ! |
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244 | END SUBROUTINE dom_vvl_init |
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245 | |
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246 | |
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247 | SUBROUTINE dom_vvl_sf_nxt( kt, kcall ) |
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248 | !!---------------------------------------------------------------------- |
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249 | !! *** ROUTINE dom_vvl_sf_nxt *** |
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250 | !! |
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251 | !! ** Purpose : - compute the after scale factors used in tra_zdf, dynnxt, |
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252 | !! tranxt and dynspg routines |
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253 | !! |
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254 | !! ** Method : - z_star case: Repartition of ssh INCREMENT proportionnaly to the level thickness. |
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255 | !! - z_tilde_case: after scale factor increment = |
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256 | !! high frequency part of horizontal divergence |
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257 | !! + retsoring towards the background grid |
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258 | !! + thickness difusion |
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259 | !! Then repartition of ssh INCREMENT proportionnaly |
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260 | !! to the "baroclinic" level thickness. |
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261 | !! |
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262 | !! ** Action : - hdiv_lf : restoring towards full baroclinic divergence in z_tilde case |
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263 | !! - tilde_e3t_a: after increment of vertical scale factor |
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264 | !! in z_tilde case |
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265 | !! - e3(t/u/v)_a |
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266 | !! |
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267 | !! Reference : Leclair, M., and Madec, G. 2011, Ocean Modelling. |
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268 | !!---------------------------------------------------------------------- |
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269 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ze3t |
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270 | REAL(wp), POINTER, DIMENSION(:,: ) :: zht, z_scale, zwu, zwv, zhdiv |
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271 | !! * Arguments |
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272 | INTEGER, INTENT( in ) :: kt ! time step |
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273 | INTEGER, INTENT( in ), OPTIONAL :: kcall ! optional argument indicating call sequence |
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274 | !! * Local declarations |
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275 | INTEGER :: ji, jj, jk ! dummy loop indices |
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276 | INTEGER , DIMENSION(3) :: ijk_max, ijk_min ! temporary integers |
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277 | REAL(wp) :: z2dt ! temporary scalars |
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278 | REAL(wp) :: z_tmin, z_tmax ! temporary scalars |
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279 | LOGICAL :: ll_do_bclinic ! temporary logical |
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280 | !!---------------------------------------------------------------------- |
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281 | ! |
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282 | IF( nn_timing == 1 ) CALL timing_start('dom_vvl_sf_nxt') |
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283 | ! |
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284 | CALL wrk_alloc( jpi,jpj,zht, z_scale, zwu, zwv, zhdiv ) |
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285 | CALL wrk_alloc( jpi,jpj,jpk, ze3t ) |
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286 | |
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287 | IF(kt == nit000) THEN |
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288 | IF(lwp) WRITE(numout,*) |
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289 | IF(lwp) WRITE(numout,*) 'dom_vvl_sf_nxt : compute after scale factors' |
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290 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~' |
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291 | ENDIF |
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292 | |
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293 | ll_do_bclinic = .TRUE. |
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294 | IF( PRESENT(kcall) ) THEN |
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295 | IF( kcall == 2 .AND. ln_vvl_ztilde ) ll_do_bclinic = .FALSE. |
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296 | ENDIF |
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297 | |
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298 | ! ******************************* ! |
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299 | ! After acale factors at t-points ! |
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300 | ! ******************************* ! |
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301 | ! ! --------------------------------------------- ! |
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302 | ! ! z_star coordinate and barotropic z-tilde part ! |
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303 | ! ! --------------------------------------------- ! |
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304 | ! |
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305 | z_scale(:,:) = ( ssha(:,:) - sshb(:,:) ) * ssmask(:,:) / ( ht_0(:,:) + sshn(:,:) + 1. - ssmask(:,:) ) |
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306 | DO jk = 1, jpkm1 |
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307 | ! formally this is the same as e3t_a = e3t_0*(1+ssha/ht_0) |
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308 | e3t_a(:,:,jk) = e3t_b(:,:,jk) + e3t_n(:,:,jk) * z_scale(:,:) * tmask(:,:,jk) |
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309 | END DO |
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310 | ! |
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311 | IF( ln_vvl_ztilde .OR. ln_vvl_layer .AND. ll_do_bclinic ) THEN ! z_tilde or layer coordinate ! |
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312 | ! ! ------baroclinic part------ ! |
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313 | |
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314 | ! I - initialization |
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315 | ! ================== |
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316 | |
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317 | ! 1 - barotropic divergence |
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318 | ! ------------------------- |
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319 | zhdiv(:,:) = 0._wp |
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320 | zht(:,:) = 0._wp |
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321 | DO jk = 1, jpkm1 |
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322 | zhdiv(:,:) = zhdiv(:,:) + e3t_n(:,:,jk) * hdivn(:,:,jk) |
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323 | zht (:,:) = zht (:,:) + e3t_n(:,:,jk) * tmask(:,:,jk) |
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324 | END DO |
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325 | zhdiv(:,:) = zhdiv(:,:) / ( zht(:,:) + 1. - tmask_i(:,:) ) |
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326 | |
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327 | ! 2 - Low frequency baroclinic horizontal divergence (z-tilde case only) |
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328 | ! -------------------------------------------------- |
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329 | IF( ln_vvl_ztilde ) THEN |
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330 | IF( kt > nit000 ) THEN |
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331 | DO jk = 1, jpkm1 |
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332 | hdiv_lf(:,:,jk) = hdiv_lf(:,:,jk) - rdt * frq_rst_hdv(:,:) & |
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333 | & * ( hdiv_lf(:,:,jk) - e3t_n(:,:,jk) * ( hdivn(:,:,jk) - zhdiv(:,:) ) ) |
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334 | END DO |
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335 | ENDIF |
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336 | ENDIF |
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337 | |
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338 | ! II - after z_tilde increments of vertical scale factors |
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339 | ! ======================================================= |
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340 | tilde_e3t_a(:,:,:) = 0._wp ! tilde_e3t_a used to store tendency terms |
---|
341 | |
---|
342 | ! 1 - High frequency divergence term |
---|
343 | ! ---------------------------------- |
---|
344 | IF( ln_vvl_ztilde ) THEN ! z_tilde case |
---|
345 | DO jk = 1, jpkm1 |
---|
346 | tilde_e3t_a(:,:,jk) = tilde_e3t_a(:,:,jk) - ( e3t_n(:,:,jk) * ( hdivn(:,:,jk) - zhdiv(:,:) ) - hdiv_lf(:,:,jk) ) |
---|
347 | END DO |
---|
348 | ELSE ! layer case |
---|
349 | DO jk = 1, jpkm1 |
---|
350 | tilde_e3t_a(:,:,jk) = tilde_e3t_a(:,:,jk) - e3t_n(:,:,jk) * ( hdivn(:,:,jk) - zhdiv(:,:) ) * tmask(:,:,jk) |
---|
351 | END DO |
---|
352 | ENDIF |
---|
353 | |
---|
354 | ! 2 - Restoring term (z-tilde case only) |
---|
355 | ! ------------------ |
---|
356 | IF( ln_vvl_ztilde ) THEN |
---|
357 | DO jk = 1, jpk |
---|
358 | tilde_e3t_a(:,:,jk) = tilde_e3t_a(:,:,jk) - frq_rst_e3t(:,:) * tilde_e3t_b(:,:,jk) |
---|
359 | END DO |
---|
360 | ENDIF |
---|
361 | |
---|
362 | ! 3 - Thickness diffusion term |
---|
363 | ! ---------------------------- |
---|
364 | zwu(:,:) = 0._wp |
---|
365 | zwv(:,:) = 0._wp |
---|
366 | DO jk = 1, jpkm1 ! a - first derivative: diffusive fluxes |
---|
367 | DO jj = 1, jpjm1 |
---|
368 | DO ji = 1, fs_jpim1 ! vector opt. |
---|
369 | un_td(ji,jj,jk) = rn_ahe3 * umask(ji,jj,jk) * e2_e1u(ji,jj) & |
---|
370 | & * ( tilde_e3t_b(ji,jj,jk) - tilde_e3t_b(ji+1,jj ,jk) ) |
---|
371 | vn_td(ji,jj,jk) = rn_ahe3 * vmask(ji,jj,jk) * e1_e2v(ji,jj) & |
---|
372 | & * ( tilde_e3t_b(ji,jj,jk) - tilde_e3t_b(ji ,jj+1,jk) ) |
---|
373 | zwu(ji,jj) = zwu(ji,jj) + un_td(ji,jj,jk) |
---|
374 | zwv(ji,jj) = zwv(ji,jj) + vn_td(ji,jj,jk) |
---|
375 | END DO |
---|
376 | END DO |
---|
377 | END DO |
---|
378 | DO jj = 1, jpj ! b - correction for last oceanic u-v points |
---|
379 | DO ji = 1, jpi |
---|
380 | un_td(ji,jj,mbku(ji,jj)) = un_td(ji,jj,mbku(ji,jj)) - zwu(ji,jj) |
---|
381 | vn_td(ji,jj,mbkv(ji,jj)) = vn_td(ji,jj,mbkv(ji,jj)) - zwv(ji,jj) |
---|
382 | END DO |
---|
383 | END DO |
---|
384 | DO jk = 1, jpkm1 ! c - second derivative: divergence of diffusive fluxes |
---|
385 | DO jj = 2, jpjm1 |
---|
386 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
387 | tilde_e3t_a(ji,jj,jk) = tilde_e3t_a(ji,jj,jk) + ( un_td(ji-1,jj ,jk) - un_td(ji,jj,jk) & |
---|
388 | & + vn_td(ji ,jj-1,jk) - vn_td(ji,jj,jk) & |
---|
389 | & ) * r1_e1e2t(ji,jj) |
---|
390 | END DO |
---|
391 | END DO |
---|
392 | END DO |
---|
393 | ! ! d - thickness diffusion transport: boundary conditions |
---|
394 | ! (stored for tracer advction and continuity equation) |
---|
395 | CALL lbc_lnk( un_td , 'U' , -1._wp) |
---|
396 | CALL lbc_lnk( vn_td , 'V' , -1._wp) |
---|
397 | |
---|
398 | ! 4 - Time stepping of baroclinic scale factors |
---|
399 | ! --------------------------------------------- |
---|
400 | ! Leapfrog time stepping |
---|
401 | ! ~~~~~~~~~~~~~~~~~~~~~~ |
---|
402 | IF( neuler == 0 .AND. kt == nit000 ) THEN |
---|
403 | z2dt = rdt |
---|
404 | ELSE |
---|
405 | z2dt = 2.0_wp * rdt |
---|
406 | ENDIF |
---|
407 | CALL lbc_lnk( tilde_e3t_a(:,:,:), 'T', 1._wp ) |
---|
408 | tilde_e3t_a(:,:,:) = tilde_e3t_b(:,:,:) + z2dt * tmask(:,:,:) * tilde_e3t_a(:,:,:) |
---|
409 | |
---|
410 | ! Maximum deformation control |
---|
411 | ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
---|
412 | ze3t(:,:,jpk) = 0._wp |
---|
413 | DO jk = 1, jpkm1 |
---|
414 | ze3t(:,:,jk) = tilde_e3t_a(:,:,jk) / e3t_0(:,:,jk) * tmask(:,:,jk) * tmask_i(:,:) |
---|
415 | END DO |
---|
416 | z_tmax = MAXVAL( ze3t(:,:,:) ) |
---|
417 | IF( lk_mpp ) CALL mpp_max( z_tmax ) ! max over the global domain |
---|
418 | z_tmin = MINVAL( ze3t(:,:,:) ) |
---|
419 | IF( lk_mpp ) CALL mpp_min( z_tmin ) ! min over the global domain |
---|
420 | ! - ML - test: for the moment, stop simulation for too large e3_t variations |
---|
421 | IF( ( z_tmax .GT. rn_zdef_max ) .OR. ( z_tmin .LT. - rn_zdef_max ) ) THEN |
---|
422 | IF( lk_mpp ) THEN |
---|
423 | CALL mpp_maxloc( ze3t, tmask, z_tmax, ijk_max(1), ijk_max(2), ijk_max(3) ) |
---|
424 | CALL mpp_minloc( ze3t, tmask, z_tmin, ijk_min(1), ijk_min(2), ijk_min(3) ) |
---|
425 | ELSE |
---|
426 | ijk_max = MAXLOC( ze3t(:,:,:) ) |
---|
427 | ijk_max(1) = ijk_max(1) + nimpp - 1 |
---|
428 | ijk_max(2) = ijk_max(2) + njmpp - 1 |
---|
429 | ijk_min = MINLOC( ze3t(:,:,:) ) |
---|
430 | ijk_min(1) = ijk_min(1) + nimpp - 1 |
---|
431 | ijk_min(2) = ijk_min(2) + njmpp - 1 |
---|
432 | ENDIF |
---|
433 | IF (lwp) THEN |
---|
434 | WRITE(numout, *) 'MAX( tilde_e3t_a(:,:,:) / e3t_0(:,:,:) ) =', z_tmax |
---|
435 | WRITE(numout, *) 'at i, j, k=', ijk_max |
---|
436 | WRITE(numout, *) 'MIN( tilde_e3t_a(:,:,:) / e3t_0(:,:,:) ) =', z_tmin |
---|
437 | WRITE(numout, *) 'at i, j, k=', ijk_min |
---|
438 | CALL ctl_warn('MAX( ABS( tilde_e3t_a(:,:,:) ) / e3t_0(:,:,:) ) too high') |
---|
439 | ENDIF |
---|
440 | ENDIF |
---|
441 | ! - ML - end test |
---|
442 | ! - ML - Imposing these limits will cause a baroclinicity error which is corrected for below |
---|
443 | tilde_e3t_a(:,:,:) = MIN( tilde_e3t_a(:,:,:), rn_zdef_max * e3t_0(:,:,:) ) |
---|
444 | tilde_e3t_a(:,:,:) = MAX( tilde_e3t_a(:,:,:), - rn_zdef_max * e3t_0(:,:,:) ) |
---|
445 | |
---|
446 | ! |
---|
447 | ! "tilda" change in the after scale factor |
---|
448 | ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
---|
449 | DO jk = 1, jpkm1 |
---|
450 | dtilde_e3t_a(:,:,jk) = tilde_e3t_a(:,:,jk) - tilde_e3t_b(:,:,jk) |
---|
451 | END DO |
---|
452 | ! III - Barotropic repartition of the sea surface height over the baroclinic profile |
---|
453 | ! ================================================================================== |
---|
454 | ! add ( ssh increment + "baroclinicity error" ) proportionly to e3t(n) |
---|
455 | ! - ML - baroclinicity error should be better treated in the future |
---|
456 | ! i.e. locally and not spread over the water column. |
---|
457 | ! (keep in mind that the idea is to reduce Eulerian velocity as much as possible) |
---|
458 | zht(:,:) = 0. |
---|
459 | DO jk = 1, jpkm1 |
---|
460 | zht(:,:) = zht(:,:) + tilde_e3t_a(:,:,jk) * tmask(:,:,jk) |
---|
461 | END DO |
---|
462 | z_scale(:,:) = - zht(:,:) / ( ht_0(:,:) + sshn(:,:) + 1. - ssmask(:,:) ) |
---|
463 | DO jk = 1, jpkm1 |
---|
464 | dtilde_e3t_a(:,:,jk) = dtilde_e3t_a(:,:,jk) + e3t_n(:,:,jk) * z_scale(:,:) * tmask(:,:,jk) |
---|
465 | END DO |
---|
466 | |
---|
467 | ENDIF |
---|
468 | |
---|
469 | IF( ln_vvl_ztilde .OR. ln_vvl_layer ) THEN ! z_tilde or layer coordinate ! |
---|
470 | ! ! ---baroclinic part--------- ! |
---|
471 | DO jk = 1, jpkm1 |
---|
472 | e3t_a(:,:,jk) = e3t_a(:,:,jk) + dtilde_e3t_a(:,:,jk) * tmask(:,:,jk) |
---|
473 | END DO |
---|
474 | ENDIF |
---|
475 | |
---|
476 | IF( ln_vvl_dbg .AND. .NOT. ll_do_bclinic ) THEN ! - ML - test: control prints for debuging |
---|
477 | ! |
---|
478 | IF( lwp ) WRITE(numout, *) 'kt =', kt |
---|
479 | IF ( ln_vvl_ztilde .OR. ln_vvl_layer ) THEN |
---|
480 | z_tmax = MAXVAL( tmask(:,:,1) * tmask_i(:,:) * ABS( zht(:,:) ) ) |
---|
481 | IF( lk_mpp ) CALL mpp_max( z_tmax ) ! max over the global domain |
---|
482 | IF( lwp ) WRITE(numout, *) kt,' MAXVAL(abs(SUM(tilde_e3t_a))) =', z_tmax |
---|
483 | END IF |
---|
484 | ! |
---|
485 | zht(:,:) = 0.0_wp |
---|
486 | DO jk = 1, jpkm1 |
---|
487 | zht(:,:) = zht(:,:) + e3t_n(:,:,jk) * tmask(:,:,jk) |
---|
488 | END DO |
---|
489 | z_tmax = MAXVAL( tmask(:,:,1) * tmask_i(:,:) * ABS( ht_0(:,:) + sshn(:,:) - zht(:,:) ) ) |
---|
490 | IF( lk_mpp ) CALL mpp_max( z_tmax ) ! max over the global domain |
---|
491 | IF( lwp ) WRITE(numout, *) kt,' MAXVAL(abs(ht_0+sshn-SUM(e3t_n))) =', z_tmax |
---|
492 | ! |
---|
493 | zht(:,:) = 0.0_wp |
---|
494 | DO jk = 1, jpkm1 |
---|
495 | zht(:,:) = zht(:,:) + e3t_a(:,:,jk) * tmask(:,:,jk) |
---|
496 | END DO |
---|
497 | z_tmax = MAXVAL( tmask(:,:,1) * tmask_i(:,:) * ABS( ht_0(:,:) + ssha(:,:) - zht(:,:) ) ) |
---|
498 | IF( lk_mpp ) CALL mpp_max( z_tmax ) ! max over the global domain |
---|
499 | IF( lwp ) WRITE(numout, *) kt,' MAXVAL(abs(ht_0+ssha-SUM(e3t_a))) =', z_tmax |
---|
500 | ! |
---|
501 | zht(:,:) = 0.0_wp |
---|
502 | DO jk = 1, jpkm1 |
---|
503 | zht(:,:) = zht(:,:) + e3t_b(:,:,jk) * tmask(:,:,jk) |
---|
504 | END DO |
---|
505 | z_tmax = MAXVAL( tmask(:,:,1) * tmask_i(:,:) * ABS( ht_0(:,:) + sshb(:,:) - zht(:,:) ) ) |
---|
506 | IF( lk_mpp ) CALL mpp_max( z_tmax ) ! max over the global domain |
---|
507 | IF( lwp ) WRITE(numout, *) kt,' MAXVAL(abs(ht_0+sshb-SUM(e3t_b))) =', z_tmax |
---|
508 | ! |
---|
509 | z_tmax = MAXVAL( tmask(:,:,1) * ABS( sshb(:,:) ) ) |
---|
510 | IF( lk_mpp ) CALL mpp_max( z_tmax ) ! max over the global domain |
---|
511 | IF( lwp ) WRITE(numout, *) kt,' MAXVAL(abs(sshb))) =', z_tmax |
---|
512 | ! |
---|
513 | z_tmax = MAXVAL( tmask(:,:,1) * ABS( sshn(:,:) ) ) |
---|
514 | IF( lk_mpp ) CALL mpp_max( z_tmax ) ! max over the global domain |
---|
515 | IF( lwp ) WRITE(numout, *) kt,' MAXVAL(abs(sshn))) =', z_tmax |
---|
516 | ! |
---|
517 | z_tmax = MAXVAL( tmask(:,:,1) * ABS( ssha(:,:) ) ) |
---|
518 | IF( lk_mpp ) CALL mpp_max( z_tmax ) ! max over the global domain |
---|
519 | IF( lwp ) WRITE(numout, *) kt,' MAXVAL(abs(ssha))) =', z_tmax |
---|
520 | END IF |
---|
521 | |
---|
522 | ! *********************************** ! |
---|
523 | ! After scale factors at u- v- points ! |
---|
524 | ! *********************************** ! |
---|
525 | |
---|
526 | CALL dom_vvl_interpol( e3t_a(:,:,:), e3u_a(:,:,:), 'U' ) |
---|
527 | CALL dom_vvl_interpol( e3t_a(:,:,:), e3v_a(:,:,:), 'V' ) |
---|
528 | |
---|
529 | ! *********************************** ! |
---|
530 | ! After depths at u- v points ! |
---|
531 | ! *********************************** ! |
---|
532 | |
---|
533 | hu_a(:,:) = e3u_a(:,:,1) * umask(:,:,1) |
---|
534 | hv_a(:,:) = e3v_a(:,:,1) * vmask(:,:,1) |
---|
535 | DO jk = 2, jpkm1 |
---|
536 | hu_a(:,:) = hu_a(:,:) + e3u_a(:,:,jk) * umask(:,:,jk) |
---|
537 | hv_a(:,:) = hv_a(:,:) + e3v_a(:,:,jk) * vmask(:,:,jk) |
---|
538 | END DO |
---|
539 | ! ! Inverse of the local depth |
---|
540 | !!gm BUG ? don't understand the use of umask_i here ..... |
---|
541 | r1_hu_a(:,:) = 1._wp / ( hu_a(:,:) + 1._wp - umask_i(:,:) ) * umask_i(:,:) |
---|
542 | r1_hv_a(:,:) = 1._wp / ( hv_a(:,:) + 1._wp - vmask_i(:,:) ) * vmask_i(:,:) |
---|
543 | ! |
---|
544 | CALL wrk_dealloc( jpi,jpj, zht, z_scale, zwu, zwv, zhdiv ) |
---|
545 | CALL wrk_dealloc( jpi,jpj,jpk, ze3t ) |
---|
546 | ! |
---|
547 | IF( nn_timing == 1 ) CALL timing_stop('dom_vvl_sf_nxt') |
---|
548 | ! |
---|
549 | END SUBROUTINE dom_vvl_sf_nxt |
---|
550 | |
---|
551 | |
---|
552 | SUBROUTINE dom_vvl_sf_swp( kt ) |
---|
553 | !!---------------------------------------------------------------------- |
---|
554 | !! *** ROUTINE dom_vvl_sf_swp *** |
---|
555 | !! |
---|
556 | !! ** Purpose : compute time filter and swap of scale factors |
---|
557 | !! compute all depths and related variables for next time step |
---|
558 | !! write outputs and restart file |
---|
559 | !! |
---|
560 | !! ** Method : - swap of e3t with trick for volume/tracer conservation |
---|
561 | !! - reconstruct scale factor at other grid points (interpolate) |
---|
562 | !! - recompute depths and water height fields |
---|
563 | !! |
---|
564 | !! ** Action : - e3t_(b/n), tilde_e3t_(b/n) and e3(u/v)_n ready for next time step |
---|
565 | !! - Recompute: |
---|
566 | !! e3(u/v)_b |
---|
567 | !! e3w_n |
---|
568 | !! e3(u/v)w_b |
---|
569 | !! e3(u/v)w_n |
---|
570 | !! gdept_n, gdepw_n and gde3w_n |
---|
571 | !! h(u/v) and h(u/v)r |
---|
572 | !! |
---|
573 | !! Reference : Leclair, M., and G. Madec, 2009, Ocean Modelling. |
---|
574 | !! Leclair, M., and G. Madec, 2011, Ocean Modelling. |
---|
575 | !!---------------------------------------------------------------------- |
---|
576 | INTEGER, INTENT( in ) :: kt ! time step |
---|
577 | ! |
---|
578 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
579 | REAL(wp) :: zcoef ! local scalar |
---|
580 | !!---------------------------------------------------------------------- |
---|
581 | |
---|
582 | IF( nn_timing == 1 ) CALL timing_start('dom_vvl_sf_swp') |
---|
583 | ! |
---|
584 | IF( kt == nit000 ) THEN |
---|
585 | IF(lwp) WRITE(numout,*) |
---|
586 | IF(lwp) WRITE(numout,*) 'dom_vvl_sf_swp : - time filter and swap of scale factors' |
---|
587 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~ - interpolate scale factors and compute depths for next time step' |
---|
588 | ENDIF |
---|
589 | ! |
---|
590 | ! Time filter and swap of scale factors |
---|
591 | ! ===================================== |
---|
592 | ! - ML - e3(t/u/v)_b are allready computed in dynnxt. |
---|
593 | IF( ln_vvl_ztilde .OR. ln_vvl_layer ) THEN |
---|
594 | IF( neuler == 0 .AND. kt == nit000 ) THEN |
---|
595 | tilde_e3t_b(:,:,:) = tilde_e3t_n(:,:,:) |
---|
596 | ELSE |
---|
597 | tilde_e3t_b(:,:,:) = tilde_e3t_n(:,:,:) & |
---|
598 | & + atfp * ( tilde_e3t_b(:,:,:) - 2.0_wp * tilde_e3t_n(:,:,:) + tilde_e3t_a(:,:,:) ) |
---|
599 | ENDIF |
---|
600 | tilde_e3t_n(:,:,:) = tilde_e3t_a(:,:,:) |
---|
601 | ENDIF |
---|
602 | gdept_b(:,:,:) = gdept_n(:,:,:) |
---|
603 | gdepw_b(:,:,:) = gdepw_n(:,:,:) |
---|
604 | |
---|
605 | e3t_n(:,:,:) = e3t_a(:,:,:) |
---|
606 | e3u_n(:,:,:) = e3u_a(:,:,:) |
---|
607 | e3v_n(:,:,:) = e3v_a(:,:,:) |
---|
608 | |
---|
609 | ! Compute all missing vertical scale factor and depths |
---|
610 | ! ==================================================== |
---|
611 | ! Horizontal scale factor interpolations |
---|
612 | ! -------------------------------------- |
---|
613 | ! - ML - e3u_b and e3v_b are allready computed in dynnxt |
---|
614 | ! - JC - hu_b, hv_b, hur_b, hvr_b also |
---|
615 | |
---|
616 | CALL dom_vvl_interpol( e3u_n(:,:,:), e3f_n(:,:,:), 'F' ) |
---|
617 | |
---|
618 | ! Vertical scale factor interpolations |
---|
619 | ! ------------------------------------ |
---|
620 | CALL dom_vvl_interpol( e3t_n(:,:,:), e3w_n (:,:,:), 'W' ) |
---|
621 | CALL dom_vvl_interpol( e3u_n(:,:,:), e3uw_n(:,:,:), 'UW' ) |
---|
622 | CALL dom_vvl_interpol( e3v_n(:,:,:), e3vw_n(:,:,:), 'VW' ) |
---|
623 | CALL dom_vvl_interpol( e3t_b(:,:,:), e3w_b (:,:,:), 'W' ) |
---|
624 | CALL dom_vvl_interpol( e3u_b(:,:,:), e3uw_b(:,:,:), 'UW' ) |
---|
625 | CALL dom_vvl_interpol( e3v_b(:,:,:), e3vw_b(:,:,:), 'VW' ) |
---|
626 | ! t- and w- points depth |
---|
627 | ! ---------------------- |
---|
628 | ! set the isf depth as it is in the initial step |
---|
629 | gdept_n(:,:,1) = 0.5_wp * e3w_n(:,:,1) |
---|
630 | gdepw_n(:,:,1) = 0.0_wp |
---|
631 | gde3w_n(:,:,1) = gdept_n(:,:,1) - sshn(:,:) |
---|
632 | |
---|
633 | DO jk = 2, jpk |
---|
634 | DO jj = 1,jpj |
---|
635 | DO ji = 1,jpi |
---|
636 | ! zcoef = (tmask(ji,jj,jk) - wmask(ji,jj,jk)) ! 0 everywhere tmask = wmask, ie everywhere expect at jk = mikt |
---|
637 | ! 1 for jk = mikt |
---|
638 | zcoef = (tmask(ji,jj,jk) - wmask(ji,jj,jk)) |
---|
639 | gdepw_n(ji,jj,jk) = gdepw_n(ji,jj,jk-1) + e3t_n(ji,jj,jk-1) |
---|
640 | gdept_n(ji,jj,jk) = zcoef * ( gdepw_n(ji,jj,jk ) + 0.5 * e3w_n(ji,jj,jk)) & |
---|
641 | & + (1-zcoef) * ( gdept_n(ji,jj,jk-1) + e3w_n(ji,jj,jk)) |
---|
642 | gde3w_n(ji,jj,jk) = gdept_n(ji,jj,jk) - sshn(ji,jj) |
---|
643 | END DO |
---|
644 | END DO |
---|
645 | END DO |
---|
646 | |
---|
647 | ! ---------------------------------------------------------------------------------- |
---|
648 | hu_n(:,:) = hu_a(:,:) ; r1_hu_n(:,:) = r1_hu_a(:,:) |
---|
649 | hv_n(:,:) = hv_a(:,:) ; r1_hv_n(:,:) = r1_hv_a(:,:) |
---|
650 | ! |
---|
651 | ht_n(:,:) = e3t_n(:,:,1) * tmask(:,:,1) |
---|
652 | DO jk = 2, jpkm1 |
---|
653 | ht_n(:,:) = ht_n(:,:) + e3t_n(:,:,jk) * tmask(:,:,jk) |
---|
654 | END DO |
---|
655 | |
---|
656 | ! Write outputs |
---|
657 | ! ============= |
---|
658 | CALL iom_put( "e3t" , e3t_n (:,:,:) ) |
---|
659 | CALL iom_put( "e3u" , e3u_n (:,:,:) ) |
---|
660 | CALL iom_put( "e3v" , e3v_n (:,:,:) ) |
---|
661 | CALL iom_put( "e3w" , e3w_n (:,:,:) ) |
---|
662 | CALL iom_put( "tpt_dep" , gde3w_n(:,:,:) ) |
---|
663 | IF( iom_use("e3tdef") ) & |
---|
664 | CALL iom_put( "e3tdef" , ( ( e3t_n(:,:,:) - e3t_0(:,:,:) ) / e3t_0(:,:,:) * 100 * tmask(:,:,:) ) ** 2 ) |
---|
665 | |
---|
666 | ! write restart file |
---|
667 | ! ================== |
---|
668 | IF( lrst_oce ) CALL dom_vvl_rst( kt, 'WRITE' ) |
---|
669 | ! |
---|
670 | IF( nn_timing == 1 ) CALL timing_stop('dom_vvl_sf_swp') |
---|
671 | ! |
---|
672 | END SUBROUTINE dom_vvl_sf_swp |
---|
673 | |
---|
674 | |
---|
675 | SUBROUTINE dom_vvl_interpol( pe3_in, pe3_out, pout ) |
---|
676 | !!--------------------------------------------------------------------- |
---|
677 | !! *** ROUTINE dom_vvl__interpol *** |
---|
678 | !! |
---|
679 | !! ** Purpose : interpolate scale factors from one grid point to another |
---|
680 | !! |
---|
681 | !! ** Method : e3_out = e3_0 + interpolation(e3_in - e3_0) |
---|
682 | !! - horizontal interpolation: grid cell surface averaging |
---|
683 | !! - vertical interpolation: simple averaging |
---|
684 | !!---------------------------------------------------------------------- |
---|
685 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(in ) :: pe3_in ! input e3 to be interpolated |
---|
686 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pe3_out ! output interpolated e3 |
---|
687 | CHARACTER(LEN=*) , INTENT(in ) :: pout ! grid point of out scale factors |
---|
688 | ! ! = 'U', 'V', 'W, 'F', 'UW' or 'VW' |
---|
689 | ! |
---|
690 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
691 | !!---------------------------------------------------------------------- |
---|
692 | ! |
---|
693 | IF( nn_timing == 1 ) CALL timing_start('dom_vvl_interpol') |
---|
694 | ! |
---|
695 | SELECT CASE ( pout ) !== type of interpolation ==! |
---|
696 | ! |
---|
697 | CASE( 'U' ) !* from T- to U-point : hor. surface weighted mean |
---|
698 | DO jk = 1, jpk |
---|
699 | DO jj = 1, jpjm1 |
---|
700 | DO ji = 1, fs_jpim1 ! vector opt. |
---|
701 | pe3_out(ji,jj,jk) = 0.5_wp * umask(ji,jj,jk) * r1_e1e2u(ji,jj) & |
---|
702 | & * ( e1e2t(ji ,jj) * ( pe3_in(ji ,jj,jk) - e3t_0(ji ,jj,jk) ) & |
---|
703 | & + e1e2t(ji+1,jj) * ( pe3_in(ji+1,jj,jk) - e3t_0(ji+1,jj,jk) ) ) |
---|
704 | END DO |
---|
705 | END DO |
---|
706 | END DO |
---|
707 | CALL lbc_lnk( pe3_out(:,:,:), 'U', 1._wp ) |
---|
708 | pe3_out(:,:,:) = pe3_out(:,:,:) + e3u_0(:,:,:) |
---|
709 | ! |
---|
710 | CASE( 'V' ) !* from T- to V-point : hor. surface weighted mean |
---|
711 | DO jk = 1, jpk |
---|
712 | DO jj = 1, jpjm1 |
---|
713 | DO ji = 1, fs_jpim1 ! vector opt. |
---|
714 | pe3_out(ji,jj,jk) = 0.5_wp * vmask(ji,jj,jk) * r1_e1e2v(ji,jj) & |
---|
715 | & * ( e1e2t(ji,jj ) * ( pe3_in(ji,jj ,jk) - e3t_0(ji,jj ,jk) ) & |
---|
716 | & + e1e2t(ji,jj+1) * ( pe3_in(ji,jj+1,jk) - e3t_0(ji,jj+1,jk) ) ) |
---|
717 | END DO |
---|
718 | END DO |
---|
719 | END DO |
---|
720 | CALL lbc_lnk( pe3_out(:,:,:), 'V', 1._wp ) |
---|
721 | pe3_out(:,:,:) = pe3_out(:,:,:) + e3v_0(:,:,:) |
---|
722 | ! |
---|
723 | CASE( 'F' ) !* from U-point to F-point : hor. surface weighted mean |
---|
724 | DO jk = 1, jpk |
---|
725 | DO jj = 1, jpjm1 |
---|
726 | DO ji = 1, fs_jpim1 ! vector opt. |
---|
727 | pe3_out(ji,jj,jk) = 0.5_wp * umask(ji,jj,jk) * umask(ji,jj+1,jk) * r1_e1e2f(ji,jj) & |
---|
728 | & * ( e1e2u(ji,jj ) * ( pe3_in(ji,jj ,jk) - e3u_0(ji,jj ,jk) ) & |
---|
729 | & + e1e2u(ji,jj+1) * ( pe3_in(ji,jj+1,jk) - e3u_0(ji,jj+1,jk) ) ) |
---|
730 | END DO |
---|
731 | END DO |
---|
732 | END DO |
---|
733 | CALL lbc_lnk( pe3_out(:,:,:), 'F', 1._wp ) |
---|
734 | pe3_out(:,:,:) = pe3_out(:,:,:) + e3f_0(:,:,:) |
---|
735 | ! |
---|
736 | CASE( 'W' ) !* from T- to W-point : vertical simple mean |
---|
737 | ! |
---|
738 | pe3_out(:,:,1) = e3w_0(:,:,1) + pe3_in(:,:,1) - e3t_0(:,:,1) |
---|
739 | ! - ML - The use of mask in this formulea enables the special treatment of the last w-point without indirect adressing |
---|
740 | !!gm BUG? use here wmask in case of ISF ? to be checked |
---|
741 | DO jk = 2, jpk |
---|
742 | pe3_out(:,:,jk) = e3w_0(:,:,jk) + ( 1.0_wp - 0.5_wp * tmask(:,:,jk) ) * ( pe3_in(:,:,jk-1) - e3t_0(:,:,jk-1) ) & |
---|
743 | & + 0.5_wp * tmask(:,:,jk) * ( pe3_in(:,:,jk ) - e3t_0(:,:,jk ) ) |
---|
744 | END DO |
---|
745 | ! |
---|
746 | CASE( 'UW' ) !* from U- to UW-point : vertical simple mean |
---|
747 | ! |
---|
748 | pe3_out(:,:,1) = e3uw_0(:,:,1) + pe3_in(:,:,1) - e3u_0(:,:,1) |
---|
749 | ! - ML - The use of mask in this formaula enables the special treatment of the last w- point without indirect adressing |
---|
750 | !!gm BUG? use here wumask in case of ISF ? to be checked |
---|
751 | DO jk = 2, jpk |
---|
752 | pe3_out(:,:,jk) = e3uw_0(:,:,jk) + ( 1.0_wp - 0.5_wp * umask(:,:,jk) ) * ( pe3_in(:,:,jk-1) - e3u_0(:,:,jk-1) ) & |
---|
753 | & + 0.5_wp * umask(:,:,jk) * ( pe3_in(:,:,jk ) - e3u_0(:,:,jk ) ) |
---|
754 | END DO |
---|
755 | ! |
---|
756 | CASE( 'VW' ) !* from V- to VW-point : vertical simple mean |
---|
757 | ! |
---|
758 | pe3_out(:,:,1) = e3vw_0(:,:,1) + pe3_in(:,:,1) - e3v_0(:,:,1) |
---|
759 | ! - ML - The use of mask in this formaula enables the special treatment of the last w- point without indirect adressing |
---|
760 | !!gm BUG? use here wvmask in case of ISF ? to be checked |
---|
761 | DO jk = 2, jpk |
---|
762 | pe3_out(:,:,jk) = e3vw_0(:,:,jk) + ( 1.0_wp - 0.5_wp * vmask(:,:,jk) ) * ( pe3_in(:,:,jk-1) - e3v_0(:,:,jk-1) ) & |
---|
763 | & + 0.5_wp * vmask(:,:,jk) * ( pe3_in(:,:,jk ) - e3v_0(:,:,jk ) ) |
---|
764 | END DO |
---|
765 | END SELECT |
---|
766 | ! |
---|
767 | IF( nn_timing == 1 ) CALL timing_stop('dom_vvl_interpol') |
---|
768 | ! |
---|
769 | END SUBROUTINE dom_vvl_interpol |
---|
770 | |
---|
771 | |
---|
772 | SUBROUTINE dom_vvl_rst( kt, cdrw ) |
---|
773 | !!--------------------------------------------------------------------- |
---|
774 | !! *** ROUTINE dom_vvl_rst *** |
---|
775 | !! |
---|
776 | !! ** Purpose : Read or write VVL file in restart file |
---|
777 | !! |
---|
778 | !! ** Method : use of IOM library |
---|
779 | !! if the restart does not contain vertical scale factors, |
---|
780 | !! they are set to the _0 values |
---|
781 | !! if the restart does not contain vertical scale factors increments (z_tilde), |
---|
782 | !! they are set to 0. |
---|
783 | !!---------------------------------------------------------------------- |
---|
784 | INTEGER , INTENT(in) :: kt ! ocean time-step |
---|
785 | CHARACTER(len=*), INTENT(in) :: cdrw ! "READ"/"WRITE" flag |
---|
786 | ! |
---|
787 | INTEGER :: jk |
---|
788 | INTEGER :: id1, id2, id3, id4, id5 ! local integers |
---|
789 | !!---------------------------------------------------------------------- |
---|
790 | ! |
---|
791 | IF( nn_timing == 1 ) CALL timing_start('dom_vvl_rst') |
---|
792 | IF( TRIM(cdrw) == 'READ' ) THEN ! Read/initialise |
---|
793 | ! ! =============== |
---|
794 | IF( ln_rstart ) THEN !* Read the restart file |
---|
795 | CALL rst_read_open ! open the restart file if necessary |
---|
796 | CALL iom_get( numror, jpdom_autoglo, 'sshn' , sshn ) |
---|
797 | ! |
---|
798 | id1 = iom_varid( numror, 'e3t_b', ldstop = .FALSE. ) |
---|
799 | id2 = iom_varid( numror, 'e3t_n', ldstop = .FALSE. ) |
---|
800 | id3 = iom_varid( numror, 'tilde_e3t_b', ldstop = .FALSE. ) |
---|
801 | id4 = iom_varid( numror, 'tilde_e3t_n', ldstop = .FALSE. ) |
---|
802 | id5 = iom_varid( numror, 'hdiv_lf', ldstop = .FALSE. ) |
---|
803 | ! ! --------- ! |
---|
804 | ! ! all cases ! |
---|
805 | ! ! --------- ! |
---|
806 | IF( MIN( id1, id2 ) > 0 ) THEN ! all required arrays exist |
---|
807 | CALL iom_get( numror, jpdom_autoglo, 'e3t_b', e3t_b(:,:,:) ) |
---|
808 | CALL iom_get( numror, jpdom_autoglo, 'e3t_n', e3t_n(:,:,:) ) |
---|
809 | ! needed to restart if land processor not computed |
---|
810 | IF(lwp) write(numout,*) 'dom_vvl_rst : e3t_b and e3t_n found in restart files' |
---|
811 | WHERE ( tmask(:,:,:) == 0.0_wp ) |
---|
812 | e3t_n(:,:,:) = e3t_0(:,:,:) |
---|
813 | e3t_b(:,:,:) = e3t_0(:,:,:) |
---|
814 | END WHERE |
---|
815 | IF( neuler == 0 ) THEN |
---|
816 | e3t_b(:,:,:) = e3t_n(:,:,:) |
---|
817 | ENDIF |
---|
818 | ELSE IF( id1 > 0 ) THEN |
---|
819 | IF(lwp) write(numout,*) 'dom_vvl_rst WARNING : e3t_n not found in restart files' |
---|
820 | IF(lwp) write(numout,*) 'e3t_n set equal to e3t_b.' |
---|
821 | IF(lwp) write(numout,*) 'neuler is forced to 0' |
---|
822 | CALL iom_get( numror, jpdom_autoglo, 'e3t_b', e3t_b(:,:,:) ) |
---|
823 | e3t_n(:,:,:) = e3t_b(:,:,:) |
---|
824 | neuler = 0 |
---|
825 | ELSE IF( id2 > 0 ) THEN |
---|
826 | IF(lwp) write(numout,*) 'dom_vvl_rst WARNING : e3t_b not found in restart files' |
---|
827 | IF(lwp) write(numout,*) 'e3t_b set equal to e3t_n.' |
---|
828 | IF(lwp) write(numout,*) 'neuler is forced to 0' |
---|
829 | CALL iom_get( numror, jpdom_autoglo, 'e3t_n', e3t_n(:,:,:) ) |
---|
830 | e3t_b(:,:,:) = e3t_n(:,:,:) |
---|
831 | neuler = 0 |
---|
832 | ELSE |
---|
833 | IF(lwp) write(numout,*) 'dom_vvl_rst WARNING : e3t_n not found in restart file' |
---|
834 | IF(lwp) write(numout,*) 'Compute scale factor from sshn' |
---|
835 | IF(lwp) write(numout,*) 'neuler is forced to 0' |
---|
836 | DO jk = 1, jpk |
---|
837 | e3t_n(:,:,jk) = e3t_0(:,:,jk) * ( ht_0(:,:) + sshn(:,:) ) & |
---|
838 | & / ( ht_0(:,:) + 1._wp - ssmask(:,:) ) * tmask(:,:,jk) & |
---|
839 | & + e3t_0(:,:,jk) * (1._wp -tmask(:,:,jk)) |
---|
840 | END DO |
---|
841 | e3t_b(:,:,:) = e3t_n(:,:,:) |
---|
842 | neuler = 0 |
---|
843 | ENDIF |
---|
844 | ! ! ----------- ! |
---|
845 | IF( ln_vvl_zstar ) THEN ! z_star case ! |
---|
846 | ! ! ----------- ! |
---|
847 | IF( MIN( id3, id4 ) > 0 ) THEN |
---|
848 | CALL ctl_stop( 'dom_vvl_rst: z_star cannot restart from a z_tilde or layer run' ) |
---|
849 | ENDIF |
---|
850 | ! ! ----------------------- ! |
---|
851 | ELSE ! z_tilde and layer cases ! |
---|
852 | ! ! ----------------------- ! |
---|
853 | IF( MIN( id3, id4 ) > 0 ) THEN ! all required arrays exist |
---|
854 | CALL iom_get( numror, jpdom_autoglo, 'tilde_e3t_b', tilde_e3t_b(:,:,:) ) |
---|
855 | CALL iom_get( numror, jpdom_autoglo, 'tilde_e3t_n', tilde_e3t_n(:,:,:) ) |
---|
856 | ELSE ! one at least array is missing |
---|
857 | tilde_e3t_b(:,:,:) = 0.0_wp |
---|
858 | tilde_e3t_n(:,:,:) = 0.0_wp |
---|
859 | ENDIF |
---|
860 | ! ! ------------ ! |
---|
861 | IF( ln_vvl_ztilde ) THEN ! z_tilde case ! |
---|
862 | ! ! ------------ ! |
---|
863 | IF( id5 > 0 ) THEN ! required array exists |
---|
864 | CALL iom_get( numror, jpdom_autoglo, 'hdiv_lf', hdiv_lf(:,:,:) ) |
---|
865 | ELSE ! array is missing |
---|
866 | hdiv_lf(:,:,:) = 0.0_wp |
---|
867 | ENDIF |
---|
868 | ENDIF |
---|
869 | ENDIF |
---|
870 | ! |
---|
871 | ELSE !* Initialize at "rest" |
---|
872 | e3t_b(:,:,:) = e3t_0(:,:,:) |
---|
873 | e3t_n(:,:,:) = e3t_0(:,:,:) |
---|
874 | sshn(:,:) = 0.0_wp |
---|
875 | IF( ln_vvl_ztilde .OR. ln_vvl_layer) THEN |
---|
876 | tilde_e3t_b(:,:,:) = 0.0_wp |
---|
877 | tilde_e3t_n(:,:,:) = 0.0_wp |
---|
878 | IF( ln_vvl_ztilde ) hdiv_lf(:,:,:) = 0.0_wp |
---|
879 | END IF |
---|
880 | ENDIF |
---|
881 | ! |
---|
882 | ELSEIF( TRIM(cdrw) == 'WRITE' ) THEN ! Create restart file |
---|
883 | ! ! =================== |
---|
884 | IF(lwp) WRITE(numout,*) '---- dom_vvl_rst ----' |
---|
885 | ! ! --------- ! |
---|
886 | ! ! all cases ! |
---|
887 | ! ! --------- ! |
---|
888 | CALL iom_rstput( kt, nitrst, numrow, 'e3t_b', e3t_b(:,:,:) ) |
---|
889 | CALL iom_rstput( kt, nitrst, numrow, 'e3t_n', e3t_n(:,:,:) ) |
---|
890 | ! ! ----------------------- ! |
---|
891 | IF( ln_vvl_ztilde .OR. ln_vvl_layer ) THEN ! z_tilde and layer cases ! |
---|
892 | ! ! ----------------------- ! |
---|
893 | CALL iom_rstput( kt, nitrst, numrow, 'tilde_e3t_b', tilde_e3t_b(:,:,:) ) |
---|
894 | CALL iom_rstput( kt, nitrst, numrow, 'tilde_e3t_n', tilde_e3t_n(:,:,:) ) |
---|
895 | END IF |
---|
896 | ! ! -------------! |
---|
897 | IF( ln_vvl_ztilde ) THEN ! z_tilde case ! |
---|
898 | ! ! ------------ ! |
---|
899 | CALL iom_rstput( kt, nitrst, numrow, 'hdiv_lf', hdiv_lf(:,:,:) ) |
---|
900 | ENDIF |
---|
901 | ! |
---|
902 | ENDIF |
---|
903 | ! |
---|
904 | IF( nn_timing == 1 ) CALL timing_stop('dom_vvl_rst') |
---|
905 | ! |
---|
906 | END SUBROUTINE dom_vvl_rst |
---|
907 | |
---|
908 | |
---|
909 | SUBROUTINE dom_vvl_ctl |
---|
910 | !!--------------------------------------------------------------------- |
---|
911 | !! *** ROUTINE dom_vvl_ctl *** |
---|
912 | !! |
---|
913 | !! ** Purpose : Control the consistency between namelist options |
---|
914 | !! for vertical coordinate |
---|
915 | !!---------------------------------------------------------------------- |
---|
916 | INTEGER :: ioptio, ios |
---|
917 | !! |
---|
918 | NAMELIST/nam_vvl/ ln_vvl_zstar, ln_vvl_ztilde, ln_vvl_layer, ln_vvl_ztilde_as_zstar, & |
---|
919 | & ln_vvl_zstar_at_eqtor , rn_ahe3 , rn_rst_e3t , & |
---|
920 | & rn_lf_cutoff , rn_zdef_max , ln_vvl_dbg ! not yet implemented: ln_vvl_kepe |
---|
921 | !!---------------------------------------------------------------------- |
---|
922 | ! |
---|
923 | REWIND( numnam_ref ) ! Namelist nam_vvl in reference namelist : |
---|
924 | READ ( numnam_ref, nam_vvl, IOSTAT = ios, ERR = 901) |
---|
925 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nam_vvl in reference namelist', lwp ) |
---|
926 | ! |
---|
927 | REWIND( numnam_cfg ) ! Namelist nam_vvl in configuration namelist : Parameters of the run |
---|
928 | READ ( numnam_cfg, nam_vvl, IOSTAT = ios, ERR = 902 ) |
---|
929 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nam_vvl in configuration namelist', lwp ) |
---|
930 | IF(lwm) WRITE ( numond, nam_vvl ) |
---|
931 | ! |
---|
932 | IF(lwp) THEN ! Namelist print |
---|
933 | WRITE(numout,*) |
---|
934 | WRITE(numout,*) 'dom_vvl_ctl : choice/control of the variable vertical coordinate' |
---|
935 | WRITE(numout,*) '~~~~~~~~~~~' |
---|
936 | WRITE(numout,*) ' Namelist nam_vvl : chose a vertical coordinate' |
---|
937 | WRITE(numout,*) ' zstar ln_vvl_zstar = ', ln_vvl_zstar |
---|
938 | WRITE(numout,*) ' ztilde ln_vvl_ztilde = ', ln_vvl_ztilde |
---|
939 | WRITE(numout,*) ' layer ln_vvl_layer = ', ln_vvl_layer |
---|
940 | WRITE(numout,*) ' ztilde as zstar ln_vvl_ztilde_as_zstar = ', ln_vvl_ztilde_as_zstar |
---|
941 | WRITE(numout,*) ' ztilde near the equator ln_vvl_zstar_at_eqtor = ', ln_vvl_zstar_at_eqtor |
---|
942 | ! WRITE(numout,*) ' Namelist nam_vvl : chose kinetic-to-potential energy conservation' |
---|
943 | ! WRITE(numout,*) ' ln_vvl_kepe = ', ln_vvl_kepe |
---|
944 | WRITE(numout,*) ' Namelist nam_vvl : thickness diffusion coefficient' |
---|
945 | WRITE(numout,*) ' rn_ahe3 = ', rn_ahe3 |
---|
946 | WRITE(numout,*) ' Namelist nam_vvl : maximum e3t deformation fractional change' |
---|
947 | WRITE(numout,*) ' rn_zdef_max = ', rn_zdef_max |
---|
948 | IF( ln_vvl_ztilde_as_zstar ) THEN |
---|
949 | WRITE(numout,*) ' ztilde running in zstar emulation mode; ' |
---|
950 | WRITE(numout,*) ' ignoring namelist timescale parameters and using:' |
---|
951 | WRITE(numout,*) ' hard-wired : z-tilde to zstar restoration timescale (days)' |
---|
952 | WRITE(numout,*) ' rn_rst_e3t = 0.0' |
---|
953 | WRITE(numout,*) ' hard-wired : z-tilde cutoff frequency of low-pass filter (days)' |
---|
954 | WRITE(numout,*) ' rn_lf_cutoff = 1.0/rdt' |
---|
955 | ELSE |
---|
956 | WRITE(numout,*) ' Namelist nam_vvl : z-tilde to zstar restoration timescale (days)' |
---|
957 | WRITE(numout,*) ' rn_rst_e3t = ', rn_rst_e3t |
---|
958 | WRITE(numout,*) ' Namelist nam_vvl : z-tilde cutoff frequency of low-pass filter (days)' |
---|
959 | WRITE(numout,*) ' rn_lf_cutoff = ', rn_lf_cutoff |
---|
960 | ENDIF |
---|
961 | WRITE(numout,*) ' Namelist nam_vvl : debug prints' |
---|
962 | WRITE(numout,*) ' ln_vvl_dbg = ', ln_vvl_dbg |
---|
963 | ENDIF |
---|
964 | ! |
---|
965 | ioptio = 0 ! Parameter control |
---|
966 | IF( ln_vvl_ztilde_as_zstar ) ln_vvl_ztilde = .true. |
---|
967 | IF( ln_vvl_zstar ) ioptio = ioptio + 1 |
---|
968 | IF( ln_vvl_ztilde ) ioptio = ioptio + 1 |
---|
969 | IF( ln_vvl_layer ) ioptio = ioptio + 1 |
---|
970 | ! |
---|
971 | IF( ioptio /= 1 ) CALL ctl_stop( 'Choose ONE vertical coordinate in namelist nam_vvl' ) |
---|
972 | IF( .NOT. ln_vvl_zstar .AND. nn_isf .NE. 0) CALL ctl_stop( 'Only vvl_zstar has been tested with ice shelf cavity' ) |
---|
973 | ! |
---|
974 | IF(lwp) THEN ! Print the choice |
---|
975 | WRITE(numout,*) |
---|
976 | IF( ln_vvl_zstar ) WRITE(numout,*) ' zstar vertical coordinate is used' |
---|
977 | IF( ln_vvl_ztilde ) WRITE(numout,*) ' ztilde vertical coordinate is used' |
---|
978 | IF( ln_vvl_layer ) WRITE(numout,*) ' layer vertical coordinate is used' |
---|
979 | IF( ln_vvl_ztilde_as_zstar ) WRITE(numout,*) ' to emulate a zstar coordinate' |
---|
980 | ! - ML - Option not developed yet |
---|
981 | ! IF( ln_vvl_kepe ) WRITE(numout,*) ' kinetic to potential energy transfer : option used' |
---|
982 | ! IF( .NOT. ln_vvl_kepe ) WRITE(numout,*) ' kinetic to potential energy transfer : option not used' |
---|
983 | ENDIF |
---|
984 | ! |
---|
985 | #if defined key_agrif |
---|
986 | IF (.NOT.Agrif_Root()) CALL ctl_stop( 'AGRIF not implemented with non-linear free surface (key_vvl)' ) |
---|
987 | #endif |
---|
988 | ! |
---|
989 | END SUBROUTINE dom_vvl_ctl |
---|
990 | |
---|
991 | !!====================================================================== |
---|
992 | END MODULE domvvl |
---|
993 | |
---|
994 | |
---|
995 | |
---|