1 | MODULE dyncor |
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2 | !!====================================================================== |
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3 | !! *** MODULE dyncor *** |
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4 | !! Ocean dynamics: Update the momentum trend with the planetary vorticity trends |
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5 | !!====================================================================== |
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6 | !! History : 5.0 ! 2018-07 (G. Madec) Coriolis trend for Flux Form |
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7 | !!---------------------------------------------------------------------- |
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8 | |
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9 | !!---------------------------------------------------------------------- |
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10 | !! dyn_cor : Update the momentum trend with the vorticity trend |
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11 | !! vor_ens : enstrophy conserving scheme (ln_dynvor_ens=T) |
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12 | !! vor_ene : energy conserving scheme (ln_dynvor_ene=T) |
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13 | !! vor_een : energy and enstrophy conserving (ln_dynvor_een=T) |
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14 | !! dyn_cor_init : set and control of the different vorticity option |
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15 | !!---------------------------------------------------------------------- |
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16 | USE oce ! ocean dynamics and tracers |
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17 | USE dom_oce ! ocean space and time domain |
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18 | USE dommsk ! ocean mask |
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19 | USE dynadv ! momentum advection |
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20 | USE trd_oce ! trends: ocean variables |
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21 | USE trddyn ! trend manager: dynamics |
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22 | USE sbcwave ! Surface Waves (add Stokes-Coriolis force) |
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23 | USE sbc_oce , ONLY : ln_stcor ! use Stoke-Coriolis force |
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24 | ! |
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25 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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26 | USE prtctl ! Print control |
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27 | USE in_out_manager ! I/O manager |
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28 | USE lib_mpp ! MPP library |
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29 | USE timing ! Timing |
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30 | |
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31 | IMPLICIT NONE |
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32 | PRIVATE |
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33 | |
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34 | PUBLIC dyn_cor ! routine called by step.F90 |
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35 | PUBLIC dyn_cor_init ! routine called by nemogcm.F90 |
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36 | |
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37 | ! !!* Namelist namdyn_vor: vorticity term |
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38 | LOGICAL, PUBLIC :: ln_dynvor_ens !: enstrophy conserving scheme (ENS) |
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39 | LOGICAL, PUBLIC :: ln_dynvor_ene !: f-point energy conserving scheme (ENE) |
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40 | LOGICAL, PUBLIC :: ln_dynvor_enT !: t-point energy conserving scheme (ENT) |
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41 | LOGICAL, PUBLIC :: ln_dynvor_eeT !: t-point energy conserving scheme (EET) |
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42 | LOGICAL, PUBLIC :: ln_dynvor_een !: energy & enstrophy conserving scheme (EEN) |
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43 | INTEGER, PUBLIC :: nn_een_e3f !: e3f=masked averaging of e3t divided by 4 (=0) or by the sum of mask (=1) |
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44 | LOGICAL, PUBLIC :: ln_dynvor_mix !: mixed scheme (MIX) |
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45 | LOGICAL, PUBLIC :: ln_dynvor_msk !: vorticity multiplied by fmask (=T) or not (=F) (all vorticity schemes) |
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46 | |
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47 | INTEGER, PUBLIC :: nvor_scheme !: choice of the type of advection scheme |
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48 | ! ! associated indices: |
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49 | INTEGER, PUBLIC, PARAMETER :: np_ENS = 0 ! ENS scheme |
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50 | INTEGER, PUBLIC, PARAMETER :: np_ENE = 1 ! ENE scheme |
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51 | INTEGER, PUBLIC, PARAMETER :: np_ENT = 2 ! ENT scheme (t-point vorticity) |
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52 | INTEGER, PUBLIC, PARAMETER :: np_EET = 3 ! EET scheme (EEN using e3t) |
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53 | INTEGER, PUBLIC, PARAMETER :: np_EEN = 4 ! EEN scheme |
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54 | INTEGER, PUBLIC, PARAMETER :: np_MIX = 5 ! MIX scheme |
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55 | |
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56 | INTEGER :: ncor, nrvm, ntot ! choice of calculated vorticity |
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57 | ! ! associated indices: |
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58 | INTEGER, PUBLIC, PARAMETER :: np_COR = 1 ! Coriolis (planetary) |
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59 | INTEGER, PUBLIC, PARAMETER :: np_RVO = 2 ! relative vorticity |
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60 | INTEGER, PUBLIC, PARAMETER :: np_MET = 3 ! metric term |
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61 | INTEGER, PUBLIC, PARAMETER :: np_CRV = 4 ! relative + planetary (total vorticity) |
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62 | INTEGER, PUBLIC, PARAMETER :: np_CME = 5 ! Coriolis + metric term |
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63 | |
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64 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: di_e2u_2 ! = di(e2u)/2 used in T-point metric term calculation |
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65 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: dj_e1v_2 ! = dj(e1v)/2 - - - - |
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66 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: di_e2v_2e1e2f ! = di(e2u)/(2*e1e2f) used in F-point metric term calculation |
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67 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: dj_e1u_2e1e2f ! = dj(e1v)/(2*e1e2f) - - - - |
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68 | |
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69 | REAL(wp) :: r1_4 = 0.250_wp ! =1/4 |
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70 | REAL(wp) :: r1_8 = 0.125_wp ! =1/8 |
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71 | REAL(wp) :: r1_12 = 1._wp / 12._wp ! 1/12 |
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72 | |
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73 | !! * Substitutions |
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74 | # include "vectopt_loop_substitute.h90" |
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75 | !!---------------------------------------------------------------------- |
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76 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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77 | !! $Id$ |
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78 | !! Software governed by the CeCILL licence (./LICENSE) |
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79 | !!---------------------------------------------------------------------- |
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80 | CONTAINS |
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81 | |
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82 | SUBROUTINE dyn_cor( kt ) |
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83 | !!---------------------------------------------------------------------- |
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84 | !! |
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85 | !! ** Purpose : compute the lateral ocean tracer physics. |
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86 | !! |
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87 | !! ** Action : - Update (ua,va) with the now vorticity term trend |
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88 | !! - save the trends in (ztrdu,ztrdv) in 2 parts (relative |
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89 | !! and planetary vorticity trends) and send them to trd_dyn |
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90 | !! for futher diagnostics (l_trddyn=T) |
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91 | !!---------------------------------------------------------------------- |
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92 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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93 | ! |
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94 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrdu, ztrdv |
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95 | !!---------------------------------------------------------------------- |
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96 | ! |
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97 | IF( ln_timing ) CALL timing_start('dyn_cor') |
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98 | ! |
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99 | IF( l_trddyn ) THEN !== trend diagnostics case : split the added trend in two parts ==! |
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100 | ! |
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101 | ALLOCATE( ztrdu(jpi,jpj,jpk), ztrdv(jpi,jpj,jpk) ) |
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102 | ! |
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103 | ztrdu(:,:,:) = ua(:,:,:) !* planetary vorticity trend (including Stokes-Coriolis force) |
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104 | ztrdv(:,:,:) = va(:,:,:) |
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105 | |
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106 | CALL cor_ene( kt, ncor, un , vn , ua, va ) ! energy conserving scheme (T-pts) |
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107 | |
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108 | ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) |
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109 | ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) |
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110 | CALL trd_dyn( ztrdu, ztrdv, jpdyn_pvo, kt ) |
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111 | ! |
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112 | IF( n_dynadv /= np_LIN_dyn ) THEN !* relative vorticity or metric trend (only in non-linear case) |
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113 | ztrdu(:,:,:) = ua(:,:,:) |
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114 | ztrdv(:,:,:) = va(:,:,:) |
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115 | CALL cor_ene( kt, nrvm, un , vn , ua, va ) ! energy conserving scheme (T-pts) |
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116 | ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) |
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117 | ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) |
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118 | CALL trd_dyn( ztrdu, ztrdv, jpdyn_rvo, kt ) |
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119 | ENDIF |
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120 | ! |
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121 | DEALLOCATE( ztrdu, ztrdv ) |
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122 | ! |
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123 | ELSE !== Coriolis (+metric) trend added to the general trend ==! |
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124 | ! |
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125 | ! !* energy conserving scheme (T-pts) |
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126 | IF( ln_stcor ) CALL cor_ene( kt, ntot, usd, vsd , ua, va ) ! Stokes drift |
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127 | CALL cor_ene( kt, ncor, un , vn , ua, va ) ! |
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128 | ! |
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129 | ENDIF |
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130 | ! |
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131 | ! ! print sum trends (used for debugging) |
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132 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' vor - Ua: ', mask1=umask, & |
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133 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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134 | ! |
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135 | IF( ln_timing ) CALL timing_stop('dyn_cor') |
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136 | ! |
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137 | END SUBROUTINE dyn_cor |
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138 | |
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139 | |
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140 | SUBROUTINE cor_ene( kt, kvor, pu, pv, pu_rhs, pv_rhs ) |
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141 | !!---------------------------------------------------------------------- |
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142 | !! *** ROUTINE vor_enT *** |
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143 | !! |
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144 | !! ** Purpose : Compute the now Coriolis (+ metric term) trend and |
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145 | !! add it to the general trend of the momentum equation. |
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146 | !! |
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147 | !! ** Method : Trend evaluated using now fields (centered in time) |
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148 | !! and t-point evaluation of vorticity (planetary and relative). |
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149 | !! conserves the horizontal kinetic energy. |
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150 | !! The general trend of momentum is increased due to the vorticity |
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151 | !! term which is given by: |
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152 | !! voru = 1/bu mj[ ( mi(mj(bf*rvor))+bt*f_t)/e3t mj[vn] ] |
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153 | !! vorv = 1/bv mi[ ( mi(mj(bf*rvor))+bt*f_t)/e3f mj[un] ] |
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154 | !! where rvor is the relative vorticity at f-point |
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155 | !! |
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156 | !! ** Action : - Update (ua,va) with the now vorticity term trend |
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157 | !!---------------------------------------------------------------------- |
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158 | INTEGER , INTENT(in ) :: kt ! ocean time-step index |
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159 | INTEGER , INTENT(in ) :: kvor ! total, planetary, relative, or metric |
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160 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pu, pv ! now velocities |
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161 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pu_rhs, pv_rhs ! total v-trend |
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162 | ! |
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163 | INTEGER :: ji, jj, jk ! dummy loop indices |
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164 | REAL(wp) :: zx1, zy1, zx2, zy2 ! local scalars |
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165 | REAL(wp), DIMENSION(jpi,jpj) :: zwx, zwy, zwz, zwt ! 2D workspace |
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166 | !!---------------------------------------------------------------------- |
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167 | ! |
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168 | IF( kt == nit000 ) THEN |
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169 | IF(lwp) WRITE(numout,*) |
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170 | IF(lwp) WRITE(numout,*) 'dyn:vor_enT : vorticity term: t-point energy conserving scheme' |
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171 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~' |
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172 | ENDIF |
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173 | ! |
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174 | ! ! =============== |
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175 | DO jk = 1, jpkm1 ! Horizontal slab |
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176 | ! ! =============== |
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177 | ! |
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178 | SELECT CASE( kvor ) !== volume weighted vorticity considered ==! |
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179 | CASE ( np_COR ) !* Coriolis (planetary vorticity) |
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180 | zwt(:,:) = ff_t(:,:) * e1e2t(:,:)*e3t_n(:,:,jk) |
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181 | CASE ( np_MET ) !* metric term |
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182 | DO jj = 2, jpj |
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183 | DO ji = 2, jpi |
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184 | zwt(ji,jj) = ( ( pv(ji,jj,jk) + pv(ji,jj-1,jk) ) * di_e2u_2(ji,jj) & |
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185 | & - ( pu(ji,jj,jk) + pu(ji-1,jj,jk) ) * dj_e1v_2(ji,jj) ) * e3t_n(ji,jj,jk) |
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186 | END DO |
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187 | END DO |
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188 | CASE ( np_CME ) !* Coriolis + metric |
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189 | DO jj = 2, jpj |
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190 | DO ji = 2, jpi ! vector opt. |
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191 | zwt(ji,jj) = ( ff_t(ji,jj) * e1e2t(ji,jj) & |
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192 | & + ( pv(ji,jj,jk) + pv(ji,jj-1,jk) ) * di_e2u_2(ji,jj) & |
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193 | & - ( pu(ji,jj,jk) + pu(ji-1,jj,jk) ) * dj_e1v_2(ji,jj) ) * e3t_n(ji,jj,jk) |
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194 | END DO |
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195 | END DO |
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196 | CASE DEFAULT ! error |
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197 | CALL ctl_stop('STOP','dyn_vor: wrong value for kvor' ) |
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198 | END SELECT |
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199 | ! |
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200 | ! !== compute and add the vorticity term trend =! |
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201 | DO jj = 2, jpjm1 |
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202 | DO ji = 2, jpim1 ! vector opt. |
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203 | pu_rhs(ji,jj,jk) = pu_rhs(ji,jj,jk) + r1_4 * r1_e1e2u(ji,jj) / e3u_n(ji,jj,jk) & |
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204 | & * ( zwt(ji+1,jj) * ( pv(ji+1,jj,jk) + pv(ji+1,jj-1,jk) ) & |
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205 | & + zwt(ji ,jj) * ( pv(ji ,jj,jk) + pv(ji ,jj-1,jk) ) ) |
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206 | ! |
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207 | pv_rhs(ji,jj,jk) = pv_rhs(ji,jj,jk) - r1_4 * r1_e1e2v(ji,jj) / e3v_n(ji,jj,jk) & |
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208 | & * ( zwt(ji,jj+1) * ( pu(ji,jj+1,jk) + pu(ji-1,jj+1,jk) ) & |
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209 | & + zwt(ji,jj ) * ( pu(ji,jj ,jk) + pu(ji-1,jj ,jk) ) ) |
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210 | END DO |
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211 | END DO |
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212 | ! ! =============== |
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213 | END DO ! End of slab |
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214 | ! ! =============== |
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215 | END SUBROUTINE cor_ene |
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216 | |
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217 | |
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218 | SUBROUTINE dyn_cor_init |
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219 | !!--------------------------------------------------------------------- |
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220 | !! *** ROUTINE dyn_cor_init *** |
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221 | !! |
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222 | !! ** Purpose : Control the consistency between cpp options for |
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223 | !! tracer advection schemes |
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224 | !!---------------------------------------------------------------------- |
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225 | INTEGER :: ji, jj, jk ! dummy loop indices |
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226 | INTEGER :: ioptio, ios ! local integer |
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227 | !! |
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228 | NAMELIST/namdyn_vor/ ln_dynvor_ens, ln_dynvor_ene, ln_dynvor_enT, ln_dynvor_eeT, & |
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229 | & ln_dynvor_een, nn_een_e3f , ln_dynvor_mix, ln_dynvor_msk |
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230 | !!---------------------------------------------------------------------- |
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231 | ! |
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232 | IF(lwp) THEN |
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233 | WRITE(numout,*) |
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234 | WRITE(numout,*) 'dyn_vor_init : vorticity term : read namelist and control the consistency' |
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235 | WRITE(numout,*) '~~~~~~~~~~~~' |
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236 | ENDIF |
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237 | ! |
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238 | REWIND( numnam_ref ) ! Namelist namdyn_vor in reference namelist : Vorticity scheme options |
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239 | READ ( numnam_ref, namdyn_vor, IOSTAT = ios, ERR = 901) |
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240 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_vor in reference namelist', lwp ) |
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241 | REWIND( numnam_cfg ) ! Namelist namdyn_vor in configuration namelist : Vorticity scheme options |
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242 | READ ( numnam_cfg, namdyn_vor, IOSTAT = ios, ERR = 902 ) |
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243 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namdyn_vor in configuration namelist', lwp ) |
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244 | IF(lwm) WRITE ( numond, namdyn_vor ) |
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245 | ! |
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246 | IF(lwp) THEN ! Namelist print |
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247 | WRITE(numout,*) ' Namelist namdyn_vor : choice of the vorticity term scheme' |
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248 | WRITE(numout,*) ' enstrophy conserving scheme ln_dynvor_ens = ', ln_dynvor_ens |
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249 | WRITE(numout,*) ' f-point energy conserving scheme ln_dynvor_ene = ', ln_dynvor_ene |
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250 | WRITE(numout,*) ' t-point energy conserving scheme ln_dynvor_enT = ', ln_dynvor_enT |
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251 | WRITE(numout,*) ' energy conserving scheme (een using e3t) ln_dynvor_eeT = ', ln_dynvor_eeT |
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252 | WRITE(numout,*) ' enstrophy and energy conserving scheme ln_dynvor_een = ', ln_dynvor_een |
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253 | WRITE(numout,*) ' e3f = averaging /4 (=0) or /sum(tmask) (=1) nn_een_e3f = ', nn_een_e3f |
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254 | WRITE(numout,*) ' mixed enstrophy/energy conserving scheme ln_dynvor_mix = ', ln_dynvor_mix |
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255 | WRITE(numout,*) ' masked (=T) or unmasked(=F) vorticity ln_dynvor_msk = ', ln_dynvor_msk |
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256 | ENDIF |
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257 | |
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258 | IF( ln_dynvor_msk ) CALL ctl_stop( 'dyn_vor_init: masked vorticity is not currently not available') |
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259 | |
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260 | !!gm this should be removed when choosing a unique strategy for fmask at the coast |
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261 | ! If energy, enstrophy or mixed advection of momentum in vector form change the value for masks |
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262 | ! at angles with three ocean points and one land point |
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263 | IF(lwp) WRITE(numout,*) |
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264 | IF(lwp) WRITE(numout,*) ' change fmask value in the angles (T) ln_vorlat = ', ln_vorlat |
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265 | IF( ln_vorlat .AND. ( ln_dynvor_ene .OR. ln_dynvor_ens .OR. ln_dynvor_mix ) ) THEN |
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266 | DO jk = 1, jpk |
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267 | DO jj = 1, jpjm1 |
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268 | DO ji = 1, jpim1 |
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269 | IF( tmask(ji,jj+1,jk) + tmask(ji+1,jj+1,jk) & |
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270 | & + tmask(ji,jj ,jk) + tmask(ji+1,jj+1,jk) == 3._wp ) fmask(ji,jj,jk) = 1._wp |
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271 | END DO |
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272 | END DO |
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273 | END DO |
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274 | ! |
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275 | CALL lbc_lnk( fmask, 'F', 1._wp ) ! Lateral boundary conditions on fmask |
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276 | ! |
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277 | ENDIF |
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278 | !!gm end |
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279 | |
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280 | ioptio = 0 ! type of scheme for vorticity (set nvor_scheme) |
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281 | IF( ln_dynvor_ens ) THEN ; ioptio = ioptio + 1 ; nvor_scheme = np_ENS ; ENDIF |
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282 | IF( ln_dynvor_ene ) THEN ; ioptio = ioptio + 1 ; nvor_scheme = np_ENE ; ENDIF |
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283 | IF( ln_dynvor_enT ) THEN ; ioptio = ioptio + 1 ; nvor_scheme = np_ENT ; ENDIF |
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284 | IF( ln_dynvor_eeT ) THEN ; ioptio = ioptio + 1 ; nvor_scheme = np_EET ; ENDIF |
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285 | IF( ln_dynvor_een ) THEN ; ioptio = ioptio + 1 ; nvor_scheme = np_EEN ; ENDIF |
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286 | IF( ln_dynvor_mix ) THEN ; ioptio = ioptio + 1 ; nvor_scheme = np_MIX ; ENDIF |
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287 | ! |
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288 | IF( ioptio /= 1 ) CALL ctl_stop( ' use ONE and ONLY one vorticity scheme' ) |
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289 | ! |
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290 | IF(lwp) WRITE(numout,*) ! type of calculated vorticity (set ncor, nrvm, ntot) |
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291 | ncor = np_COR ! planetary vorticity |
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292 | SELECT CASE( n_dynadv ) |
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293 | CASE( np_LIN_dyn ) |
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294 | IF(lwp) WRITE(numout,*) ' ==>>> linear dynamics : only Coriolis, no metric term' |
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295 | nrvm = np_COR ! planetary vorticity |
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296 | ntot = np_COR ! - - |
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297 | CASE( np_VEC_c2 ) |
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298 | CALL ctl_stop( 'dyncor_init : cor_ene requires FLUX form dynamics, not VECTOR form' ) |
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299 | CASE( np_FLX_c2 , np_FLX_ubs ) |
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300 | IF(lwp) WRITE(numout,*) ' ==>>> flux form dynamics : total vorticity = Coriolis + metric term' |
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301 | nrvm = np_MET ! metric term |
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302 | ntot = np_CME ! Coriolis + metric term |
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303 | ! |
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304 | ! ! pre-computed gradients for the metric term: |
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305 | ! !* T-point metric term : pre-compute di(e2u)/2 and dj(e1v)/2 |
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306 | ALLOCATE( di_e2u_2(jpi,jpj), dj_e1v_2(jpi,jpj) ) |
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307 | DO jj = 2, jpjm1 |
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308 | DO ji = 2, jpim1 |
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309 | di_e2u_2(ji,jj) = ( e2u(ji,jj) - e2u(ji-1,jj ) ) * 0.5_wp |
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310 | dj_e1v_2(ji,jj) = ( e1v(ji,jj) - e1v(ji ,jj-1) ) * 0.5_wp |
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311 | END DO |
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312 | END DO |
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313 | CALL lbc_lnk_multi( di_e2u_2, 'T', -1. , dj_e1v_2, 'T', -1. ) ! Lateral boundary conditions |
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314 | ! |
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315 | ! |
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316 | END SELECT |
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317 | ! |
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318 | IF(lwp) WRITE(numout,*) |
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319 | IF(lwp) WRITE(numout,*) ' ==>>> energy conserving scheme (Coriolis at F-points) (ENE)' |
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320 | ! |
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321 | END SUBROUTINE dyn_cor_init |
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322 | |
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323 | !!============================================================================== |
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324 | END MODULE dyncor |
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