1 | MODULE dynnxt |
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2 | !!========================================================================= |
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3 | !! *** MODULE dynnxt *** |
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4 | !! Ocean dynamics: time stepping |
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5 | !!========================================================================= |
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6 | !! History : OPA ! 1987-02 (P. Andrich, D. L Hostis) Original code |
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7 | !! ! 1990-10 (C. Levy, G. Madec) |
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8 | !! 7.0 ! 1993-03 (M. Guyon) symetrical conditions |
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9 | !! 8.0 ! 1997-02 (G. Madec & M. Imbard) opa, release 8.0 |
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10 | !! 8.2 ! 1997-04 (A. Weaver) Euler forward step |
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11 | !! - ! 1997-06 (G. Madec) lateral boudary cond., lbc routine |
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12 | !! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and module |
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13 | !! - ! 2002-10 (C. Talandier, A-M. Treguier) Open boundary cond. |
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14 | !! 2.0 ! 2005-11 (V. Garnier) Surface pressure gradient organization |
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15 | !! 2.3 ! 2007-07 (D. Storkey) Calls to BDY routines. |
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16 | !! 3.2 ! 2009-06 (G. Madec, R.Benshila) re-introduce the vvl option |
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17 | !! 3.3 ! 2010-09 (D. Storkey, E.O'Dea) Bug fix for BDY module |
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18 | !! 3.3 ! 2011-03 (P. Oddo) Bug fix for time-splitting+(BDY-OBC) and not VVL |
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19 | !! 3.5 ! 2013-07 (J. Chanut) Compliant with time splitting changes |
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20 | !! 3.6 ! 2014-04 (G. Madec) add the diagnostic of the time filter trends |
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21 | !! 3.7 ! 2015-11 (J. Chanut) Free surface simplification |
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22 | !! 4.0 ! 2018-07 (G. Madec) 1- z-star (s-star) only |
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23 | !! 2- remove dom_vvl_interpol |
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24 | !!------------------------------------------------------------------------- |
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25 | |
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26 | !!------------------------------------------------------------------------- |
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27 | !! dyn_nxt : obtain the next (after) horizontal velocity |
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28 | !!------------------------------------------------------------------------- |
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29 | USE oce ! ocean dynamics and tracers |
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30 | USE dom_oce ! ocean space and time domain |
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31 | USE sbc_oce ! Surface boundary condition: ocean fields |
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32 | USE sbcrnf ! river runoffs |
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33 | USE sbcisf ! ice shelf |
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34 | USE phycst ! physical constants |
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35 | USE dynadv ! dynamics: vector invariant versus flux form |
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36 | USE dynspg_ts ! surface pressure gradient: split-explicit scheme |
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37 | USE domvvl ! variable volume |
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38 | USE bdy_oce , ONLY : ln_bdy |
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39 | USE bdydta ! ocean open boundary conditions |
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40 | USE bdydyn ! ocean open boundary conditions |
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41 | USE bdyvol ! ocean open boundary condition (bdy_vol routines) |
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42 | USE trd_oce ! trends: ocean variables |
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43 | USE trddyn ! trend manager: dynamics |
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44 | USE trdken ! trend manager: kinetic energy |
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45 | ! |
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46 | USE in_out_manager ! I/O manager |
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47 | USE iom ! I/O manager library |
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48 | USE lbclnk ! lateral boundary condition (or mpp link) |
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49 | USE lib_mpp ! MPP library |
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50 | USE prtctl ! Print control |
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51 | USE timing ! Timing |
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52 | #if defined key_agrif |
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53 | USE agrif_oce_interp |
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54 | #endif |
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55 | |
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56 | IMPLICIT NONE |
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57 | PRIVATE |
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58 | |
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59 | PUBLIC dyn_nxt ! routine called by step.F90 |
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60 | |
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61 | !!---------------------------------------------------------------------- |
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62 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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63 | !! $Id$ |
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64 | !! Software governed by the CeCILL licence (./LICENSE) |
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65 | !!---------------------------------------------------------------------- |
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66 | CONTAINS |
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67 | |
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68 | SUBROUTINE dyn_nxt( kt ) |
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69 | !!---------------------------------------------------------------------- |
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70 | !! *** ROUTINE dyn_nxt *** |
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71 | !! |
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72 | !! ** Purpose : Finalize after horizontal velocity. Apply the boundary |
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73 | !! condition on the after velocity, achieve the time stepping |
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74 | !! by applying the Asselin filter on now fields and swapping |
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75 | !! the fields. |
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76 | !! |
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77 | !! ** Method : * Ensure after velocities transport matches time splitting |
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78 | !! estimate (ln_dynspg_ts=T) |
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79 | !! |
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80 | !! * Apply lateral boundary conditions on after velocity |
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81 | !! at the local domain boundaries through lbc_lnk call, |
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82 | !! at the one-way open boundaries (ln_bdy=T), |
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83 | !! at the AGRIF zoom boundaries (lk_agrif=T) |
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84 | !! |
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85 | !! * Apply the time filter applied and swap of the dynamics |
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86 | !! arrays to start the next time step: |
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87 | !! (ub,vb) = (un,vn) + rn_atfp [ (ub,vb) + (ua,va) - 2 (un,vn) ] |
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88 | !! (un,vn) = (ua,va). |
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89 | !! Note that with flux form advection and non linear free surface, |
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90 | !! the time filter is applied on thickness weighted velocity. |
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91 | !! As a result, dyn_nxt MUST be called after tra_nxt. |
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92 | !! |
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93 | !! ** Action : ub,vb filtered before horizontal velocity of next time-step |
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94 | !! un,vn now horizontal velocity of next time-step |
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95 | !!---------------------------------------------------------------------- |
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96 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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97 | ! |
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98 | INTEGER :: ji, jj, jk ! dummy loop indices |
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99 | INTEGER :: ikt ! local integers |
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100 | REAL(wp) :: zue3a, zue3n, zue3b, zuf, zcoef ! local scalars |
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101 | REAL(wp) :: zve3a, zve3n, zve3b, zvf ! - - |
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102 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zue, zve |
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103 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ze3u_f, ze3v_f, zua, zva |
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104 | REAL(wp), DIMENSION(jpi,jpj) :: z_ssh_h0, zsshu, zsshv |
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105 | !!---------------------------------------------------------------------- |
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106 | ! |
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107 | IF( ln_timing ) CALL timing_start('dyn_nxt') |
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108 | IF( ln_dynspg_ts ) ALLOCATE( zue(jpi,jpj) , zve(jpi,jpj) ) |
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109 | IF( l_trddyn ) ALLOCATE( zua(jpi,jpj,jpk) , zva(jpi,jpj,jpk) ) |
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110 | ! |
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111 | IF( kt == nit000 ) THEN |
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112 | IF(lwp) WRITE(numout,*) |
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113 | IF(lwp) WRITE(numout,*) 'dyn_nxt : time stepping' |
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114 | IF(lwp) WRITE(numout,*) '~~~~~~~' |
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115 | ENDIF |
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116 | |
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117 | IF ( ln_dynspg_ts ) THEN |
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118 | ! Ensure below that barotropic velocities match time splitting estimate |
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119 | ! Compute actual transport and replace it with ts estimate at "after" time step |
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120 | zue(:,:) = e3u_a(:,:,1) * ua(:,:,1) * umask(:,:,1) |
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121 | zve(:,:) = e3v_a(:,:,1) * va(:,:,1) * vmask(:,:,1) |
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122 | DO jk = 2, jpkm1 |
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123 | zue(:,:) = zue(:,:) + e3u_a(:,:,jk) * ua(:,:,jk) * umask(:,:,jk) |
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124 | zve(:,:) = zve(:,:) + e3v_a(:,:,jk) * va(:,:,jk) * vmask(:,:,jk) |
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125 | END DO |
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126 | DO jk = 1, jpkm1 |
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127 | ua(:,:,jk) = ( ua(:,:,jk) - zue(:,:) * r1_hu_a(:,:) + ua_b(:,:) ) * umask(:,:,jk) |
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128 | va(:,:,jk) = ( va(:,:,jk) - zve(:,:) * r1_hv_a(:,:) + va_b(:,:) ) * vmask(:,:,jk) |
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129 | END DO |
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130 | ! |
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131 | IF( .NOT.ln_bt_fw ) THEN |
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132 | ! Remove advective velocity from "now velocities" |
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133 | ! prior to asselin filtering |
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134 | ! In the forward case, this is done below after asselin filtering |
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135 | ! so that asselin contribution is removed at the same time |
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136 | DO jk = 1, jpkm1 |
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137 | un(:,:,jk) = ( un(:,:,jk) - un_adv(:,:)*r1_hu_n(:,:) + un_b(:,:) ) * umask(:,:,jk) |
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138 | vn(:,:,jk) = ( vn(:,:,jk) - vn_adv(:,:)*r1_hv_n(:,:) + vn_b(:,:) ) * vmask(:,:,jk) |
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139 | END DO |
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140 | ENDIF |
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141 | ENDIF |
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142 | |
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143 | ! Update after velocity on domain lateral boundaries |
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144 | ! -------------------------------------------------- |
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145 | # if defined key_agrif |
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146 | CALL Agrif_dyn( kt ) !* AGRIF zoom boundaries |
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147 | # endif |
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148 | ! |
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149 | CALL lbc_lnk_multi( ua, 'U', -1., va, 'V', -1. ) !* local domain boundaries |
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150 | ! |
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151 | ! !* BDY open boundaries |
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152 | IF( ln_bdy .AND. ln_dynspg_exp ) CALL bdy_dyn( kt ) |
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153 | IF( ln_bdy .AND. ln_dynspg_ts ) CALL bdy_dyn( kt, dyn3d_only=.true. ) |
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154 | |
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155 | !!$ Do we need a call to bdy_vol here?? |
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156 | ! |
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157 | IF( l_trddyn ) THEN !* prepare the atf trend computation + some diagnostics |
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158 | IF( ln_KE_trd ) CALL trd_dyn( ua, va, jpdyn_ken, kt ) ! Kinetic energy and Conversion |
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159 | IF( ln_dyn_trd ) THEN ! 3D output: total momentum trends |
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160 | IF( ln_dynadv_vec ) THEN |
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161 | zua(:,:,:) = ( ua(:,:,:) - ub(:,:,:) ) * r1_Dt |
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162 | zva(:,:,:) = ( va(:,:,:) - vb(:,:,:) ) * r1_Dt |
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163 | ELSE |
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164 | zua(:,:,:) = ( e3u_a(:,:,:)*ua(:,:,:) - e3u_b(:,:,:)*ub(:,:,:) ) / e3u_n(:,:,:) * r1_Dt |
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165 | zva(:,:,:) = ( e3v_a(:,:,:)*va(:,:,:) - e3v_b(:,:,:)*vb(:,:,:) ) / e3v_n(:,:,:) * r1_Dt |
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166 | ENDIF |
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167 | CALL iom_put( "utrd_tot", zua ) ! total momentum trends, except the asselin filter |
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168 | CALL iom_put( "vtrd_tot", zva ) |
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169 | ENDIF |
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170 | zua(:,:,:) = un(:,:,:) ! save the now velocity before the asselin filter |
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171 | zva(:,:,:) = vn(:,:,:) ! (caution: the Asselin filter trends computation will be shifted by 1 timestep) |
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172 | ENDIF |
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173 | |
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174 | ! Time filter and swap of dynamics arrays |
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175 | ! --------------------------------------- |
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176 | IF( l_1st_euler ) THEN !== Euler at 1st time-step ==! (swap only) |
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177 | DO jk = 1, jpkm1 |
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178 | un(:,:,jk) = ua(:,:,jk) ! un <-- ua |
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179 | vn(:,:,jk) = va(:,:,jk) |
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180 | END DO |
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181 | IF( .NOT.ln_linssh ) THEN ! e3._n <-- e3._a |
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182 | DO jk = 1, jpkm1 |
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183 | e3t_n(:,:,jk) = e3t_a(:,:,jk) |
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184 | e3u_n(:,:,jk) = e3u_a(:,:,jk) |
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185 | e3v_n(:,:,jk) = e3v_a(:,:,jk) |
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186 | END DO |
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187 | ENDIF |
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188 | ! |
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189 | ELSE !== Leap-Frog ==! (Asselin filter and swap) |
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190 | ! |
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191 | ! ! =============! |
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192 | IF( ln_linssh ) THEN ! Fixed volume ! |
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193 | ! ! =============! |
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194 | DO jk = 1, jpkm1 |
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195 | DO jj = 1, jpj |
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196 | DO ji = 1, jpi |
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197 | zuf = un(ji,jj,jk) + rn_atfp * ( ub(ji,jj,jk) - 2._wp * un(ji,jj,jk) + ua(ji,jj,jk) ) |
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198 | zvf = vn(ji,jj,jk) + rn_atfp * ( vb(ji,jj,jk) - 2._wp * vn(ji,jj,jk) + va(ji,jj,jk) ) |
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199 | ! |
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200 | ub(ji,jj,jk) = zuf ! ub <-- filtered velocity |
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201 | vb(ji,jj,jk) = zvf |
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202 | un(ji,jj,jk) = ua(ji,jj,jk) ! un <-- ua |
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203 | vn(ji,jj,jk) = va(ji,jj,jk) |
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204 | END DO |
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205 | END DO |
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206 | END DO |
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207 | ! ! ================! |
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208 | ELSE ! Variable volume ! |
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209 | ! ! ================! |
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210 | ! Before scale factor at t-points (used as a now filtered scale factor until the swap) |
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211 | DO jk = 1, jpkm1 |
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212 | e3t_b(:,:,jk) = e3t_n(:,:,jk) + rn_atfp * ( e3t_b(:,:,jk) - 2._wp * e3t_n(:,:,jk) + e3t_a(:,:,jk) ) |
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213 | END DO |
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214 | ! Add volume filter correction: compatibility with tracer advection scheme |
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215 | ! => time filter + conservation correction (only at the first level) |
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216 | zcoef = rn_atfp * rn_Dt * r1_rho0 |
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217 | ! |
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218 | e3t_b(:,:,1) = e3t_b(:,:,1) - zcoef * ( emp_b(:,:) - emp(:,:) ) * tmask(:,:,1) |
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219 | ! |
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220 | IF ( ln_rnf ) THEN |
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221 | IF( ln_rnf_depth ) THEN |
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222 | DO jk = 1, jpkm1 ! Deal with Rivers separetely, as can be through depth too |
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223 | DO jj = 1, jpj |
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224 | DO ji = 1, jpi |
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225 | IF( jk <= nk_rnf(ji,jj) ) THEN |
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226 | e3t_b(ji,jj,jk) = e3t_b(ji,jj,jk) - zcoef * ( - rnf_b(ji,jj) + rnf(ji,jj) ) & |
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227 | & * ( e3t_n(ji,jj,jk) / h_rnf(ji,jj) ) * tmask(ji,jj,jk) |
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228 | ENDIF |
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229 | END DO |
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230 | END DO |
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231 | END DO |
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232 | ELSE |
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233 | e3t_b(:,:,1) = e3t_b(:,:,1) - zcoef * ( -rnf_b(:,:) + rnf(:,:) )*tmask(:,:,1) |
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234 | ENDIF |
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235 | ENDIF |
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236 | ! |
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237 | IF ( ln_isf ) THEN ! if ice shelf melting |
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238 | DO jk = 1, jpkm1 ! Deal with isf separetely, as can be through depth too |
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239 | DO jj = 1, jpj |
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240 | DO ji = 1, jpi |
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241 | IF( misfkt(ji,jj) <= jk .AND. jk <= misfkb(ji,jj) ) THEN |
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242 | e3t_b(ji,jj,jk) = e3t_b(ji,jj,jk) - zcoef * ( fwfisf_b(ji,jj) - fwfisf(ji,jj) ) & |
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243 | & * ( e3t_n(ji,jj,jk) * r1_hisf_tbl(ji,jj) ) * tmask(ji,jj,jk) |
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244 | ENDIF |
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245 | END DO |
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246 | END DO |
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247 | END DO |
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248 | ENDIF |
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249 | ! |
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250 | ! |
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251 | IF( ln_dynadv_vec ) THEN ! Asselin filter applied on velocity |
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252 | ! !* ssh at u- and v-points) |
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253 | DO jj = 2, jpjm1 ; DO ji = 2, jpim1 |
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254 | zsshu(ji,jj) = 0.5_wp * ( ssh(ji,jj,Nbb) + ssh(ji+1,jj ,Nbb) ) * ssumask(ji,jj) |
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255 | zsshv(ji,jj) = 0.5_wp * ( ssh(ji,jj,Nbb) + ssh(ji ,jj+1,Nbb) ) * ssvmask(ji,jj) |
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256 | END DO ; END DO |
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257 | CALL lbc_lnk_multi( zsshu(:,:),'U', 1._wp , zsshv(:,:),'V', 1._wp ) |
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258 | ! |
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259 | ! |
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260 | ! !* e3u and e3v |
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261 | z_ssh_h0(:,:) = zsshu(:,:) * r1_hu_0(:,:) ! u-point |
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262 | DO jk = 1, jpkm1 |
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263 | e3u_b (:,:,jk) = e3u_0 (:,:,jk) * ( 1._wp + z_ssh_h0(:,:) * umask(:,:,jk) ) |
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264 | END DO |
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265 | z_ssh_h0(:,:) = zsshv(:,:) * r1_hv_0(:,:) ! v-point |
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266 | DO jk = 1, jpkm1 |
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267 | e3v_b (:,:,jk) = e3v_0 (:,:,jk) * ( 1._wp + z_ssh_h0(:,:) * vmask(:,:,jk) ) |
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268 | END DO |
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269 | ! |
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270 | DO jk = 1, jpkm1 |
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271 | DO jj = 1, jpj |
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272 | DO ji = 1, jpi |
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273 | zuf = un(ji,jj,jk) + rn_atfp * ( ub(ji,jj,jk) - 2._wp * un(ji,jj,jk) + ua(ji,jj,jk) ) |
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274 | zvf = vn(ji,jj,jk) + rn_atfp * ( vb(ji,jj,jk) - 2._wp * vn(ji,jj,jk) + va(ji,jj,jk) ) |
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275 | ! |
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276 | ub(ji,jj,jk) = zuf ! ub <-- filtered velocity |
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277 | vb(ji,jj,jk) = zvf |
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278 | un(ji,jj,jk) = ua(ji,jj,jk) ! un <-- ua |
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279 | vn(ji,jj,jk) = va(ji,jj,jk) |
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280 | END DO |
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281 | END DO |
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282 | END DO |
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283 | ! |
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284 | ELSE ! Asselin filter applied on thickness weighted velocity |
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285 | ! |
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286 | ALLOCATE( ze3u_f(jpi,jpj,jpk) , ze3v_f(jpi,jpj,jpk) ) |
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287 | ! |
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288 | ! !* ssh at u- and v-points) |
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289 | DO jj = 2, jpjm1 ; DO ji = 2, jpim1 |
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290 | zsshu(ji,jj) = 0.5_wp * ( ssh(ji,jj,Nbb) + ssh(ji+1,jj ,Nbb) ) * ssumask(ji,jj) |
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291 | zsshv(ji,jj) = 0.5_wp * ( ssh(ji,jj,Nbb) + ssh(ji ,jj+1,Nbb) ) * ssvmask(ji,jj) |
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292 | END DO ; END DO |
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293 | CALL lbc_lnk_multi( zsshu(:,:),'U', 1._wp , zsshv(:,:),'V', 1._wp ) |
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294 | ! |
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295 | ! |
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296 | ! !* e3u and e3v |
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297 | z_ssh_h0(:,:) = zsshu(:,:) * r1_hu_0(:,:) ! u-point |
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298 | DO jk = 1, jpkm1 |
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299 | ze3u_f(:,:,jk) = e3u_0 (:,:,jk) * ( 1._wp + z_ssh_h0(:,:) * umask(:,:,jk) ) |
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300 | END DO |
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301 | z_ssh_h0(:,:) = zsshv(:,:) * r1_hv_0(:,:) ! v-point |
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302 | DO jk = 1, jpkm1 |
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303 | ze3v_f(:,:,jk) = e3v_0 (:,:,jk) * ( 1._wp + z_ssh_h0(:,:) * vmask(:,:,jk) ) |
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304 | END DO |
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305 | ! |
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306 | DO jk = 1, jpkm1 |
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307 | DO jj = 1, jpj |
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308 | DO ji = 1, jpi |
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309 | zue3a = e3u_a(ji,jj,jk) * ua(ji,jj,jk) |
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310 | zve3a = e3v_a(ji,jj,jk) * va(ji,jj,jk) |
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311 | zue3n = e3u_n(ji,jj,jk) * un(ji,jj,jk) |
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312 | zve3n = e3v_n(ji,jj,jk) * vn(ji,jj,jk) |
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313 | zue3b = e3u_b(ji,jj,jk) * ub(ji,jj,jk) |
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314 | zve3b = e3v_b(ji,jj,jk) * vb(ji,jj,jk) |
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315 | ! |
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316 | zuf = ( zue3n + rn_atfp * ( zue3b - 2._wp * zue3n + zue3a ) ) / ze3u_f(ji,jj,jk) |
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317 | zvf = ( zve3n + rn_atfp * ( zve3b - 2._wp * zve3n + zve3a ) ) / ze3v_f(ji,jj,jk) |
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318 | ! |
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319 | ub(ji,jj,jk) = zuf ! ub <-- filtered velocity |
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320 | vb(ji,jj,jk) = zvf |
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321 | un(ji,jj,jk) = ua(ji,jj,jk) ! un <-- ua |
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322 | vn(ji,jj,jk) = va(ji,jj,jk) |
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323 | END DO |
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324 | END DO |
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325 | END DO |
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326 | e3u_b(:,:,1:jpkm1) = ze3u_f(:,:,1:jpkm1) ! e3u_b <-- filtered scale factor |
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327 | e3v_b(:,:,1:jpkm1) = ze3v_f(:,:,1:jpkm1) |
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328 | ! |
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329 | DEALLOCATE( ze3u_f , ze3v_f ) |
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330 | ENDIF |
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331 | ! |
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332 | ENDIF |
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333 | ! |
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334 | IF( ln_dynspg_ts .AND. ln_bt_fw ) THEN |
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335 | ! Revert "before" velocities to time split estimate |
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336 | ! Doing it here also means that asselin filter contribution is removed |
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337 | zue(:,:) = e3u_b(:,:,1) * ub(:,:,1) * umask(:,:,1) |
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338 | zve(:,:) = e3v_b(:,:,1) * vb(:,:,1) * vmask(:,:,1) |
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339 | DO jk = 2, jpkm1 |
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340 | zue(:,:) = zue(:,:) + e3u_b(:,:,jk) * ub(:,:,jk) * umask(:,:,jk) |
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341 | zve(:,:) = zve(:,:) + e3v_b(:,:,jk) * vb(:,:,jk) * vmask(:,:,jk) |
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342 | END DO |
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343 | DO jk = 1, jpkm1 |
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344 | ub(:,:,jk) = ub(:,:,jk) - (zue(:,:) * r1_hu_n(:,:) - un_b(:,:)) * umask(:,:,jk) |
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345 | vb(:,:,jk) = vb(:,:,jk) - (zve(:,:) * r1_hv_n(:,:) - vn_b(:,:)) * vmask(:,:,jk) |
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346 | END DO |
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347 | ENDIF |
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348 | ! |
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349 | ENDIF ! end Leap-Frog time stepping |
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350 | ! |
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351 | ! Set "now" and "before" barotropic velocities for next time step: |
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352 | ! JC: Would be more clever to swap variables than to make a full vertical integration |
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353 | ! |
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354 | ! |
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355 | IF(.NOT.ln_linssh ) THEN |
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356 | DO jj = 2, jpjm1 ; DO ji = 2, jpim1 |
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357 | zsshu(ji,jj) = 0.5_wp * ( ssh(ji,jj,Nbb) + ssh(ji+1,jj ,Nbb) ) * ssumask(ji,jj) |
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358 | zsshv(ji,jj) = 0.5_wp * ( ssh(ji,jj,Nbb) + ssh(ji ,jj+1,Nbb) ) * ssvmask(ji,jj) |
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359 | END DO ; END DO |
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360 | CALL lbc_lnk_multi( zsshu(:,:),'U', 1._wp , zsshu(:,:),'V', 1._wp ) |
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361 | ! |
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362 | hu_b (:,:) = hu_0(:,:) + zsshu(:,:) |
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363 | hv_b (:,:) = hv_0(:,:) + zsshv(:,:) |
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364 | r1_hu_b(:,:) = ssumask(:,:) / ( hu_b(:,:) + 1._wp - ssumask(:,:) ) ! _i mask due to ISF |
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365 | r1_hv_b(:,:) = ssvmask(:,:) / ( hv_b(:,:) + 1._wp - ssvmask(:,:) ) |
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366 | ENDIF |
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367 | ! |
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368 | ! ! |
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369 | un_b(:,:) = e3u_a(:,:,1) * un(:,:,1) * umask(:,:,1) |
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370 | ub_b(:,:) = e3u_b(:,:,1) * ub(:,:,1) * umask(:,:,1) |
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371 | vn_b(:,:) = e3v_a(:,:,1) * vn(:,:,1) * vmask(:,:,1) |
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372 | vb_b(:,:) = e3v_b(:,:,1) * vb(:,:,1) * vmask(:,:,1) |
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373 | DO jk = 2, jpkm1 |
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374 | un_b(:,:) = un_b(:,:) + e3u_a(:,:,jk) * un(:,:,jk) * umask(:,:,jk) |
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375 | ub_b(:,:) = ub_b(:,:) + e3u_b(:,:,jk) * ub(:,:,jk) * umask(:,:,jk) |
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376 | vn_b(:,:) = vn_b(:,:) + e3v_a(:,:,jk) * vn(:,:,jk) * vmask(:,:,jk) |
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377 | vb_b(:,:) = vb_b(:,:) + e3v_b(:,:,jk) * vb(:,:,jk) * vmask(:,:,jk) |
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378 | END DO |
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379 | un_b(:,:) = un_b(:,:) * r1_hu_a(:,:) |
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380 | vn_b(:,:) = vn_b(:,:) * r1_hv_a(:,:) |
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381 | ub_b(:,:) = ub_b(:,:) * r1_hu_b(:,:) |
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382 | vb_b(:,:) = vb_b(:,:) * r1_hv_b(:,:) |
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383 | ! |
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384 | IF( .NOT.ln_dynspg_ts ) THEN ! output the barotropic currents |
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385 | CALL iom_put( "ubar", un_b(:,:) ) |
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386 | CALL iom_put( "vbar", vn_b(:,:) ) |
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387 | ENDIF |
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388 | IF( l_trddyn ) THEN ! 3D output: asselin filter trends on momentum |
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389 | zua(:,:,:) = ( ub(:,:,:) - zua(:,:,:) ) * r1_Dt |
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390 | zva(:,:,:) = ( vb(:,:,:) - zva(:,:,:) ) * r1_Dt |
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391 | CALL trd_dyn( zua, zva, jpdyn_atf, kt ) |
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392 | ENDIF |
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393 | ! |
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394 | IF(ln_ctl) CALL prt_ctl( tab3d_1=un, clinfo1=' nxt - Un: ', mask1=umask, & |
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395 | & tab3d_2=vn, clinfo2=' Vn: ' , mask2=vmask ) |
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396 | ! |
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397 | IF( ln_dynspg_ts ) DEALLOCATE( zue, zve ) |
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398 | IF( l_trddyn ) DEALLOCATE( zua, zva ) |
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399 | IF( ln_timing ) CALL timing_stop('dyn_nxt') |
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400 | ! |
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401 | END SUBROUTINE dyn_nxt |
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402 | |
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403 | !!========================================================================= |
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404 | END MODULE dynnxt |
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