1 | MODULE bdytides |
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2 | !!====================================================================== |
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3 | !! *** MODULE bdytides *** |
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4 | !! Ocean dynamics: Tidal forcing at open boundaries |
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5 | !!====================================================================== |
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6 | !! History : 2.0 ! 2007-01 (D.Storkey) Original code |
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7 | !! 2.3 ! 2008-01 (J.Holt) Add date correction. Origins POLCOMS v6.3 2007 |
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8 | !! 3.0 ! 2008-04 (NEMO team) add in the reference version |
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9 | !! 3.3 ! 2010-09 (D.Storkey and E.O'Dea) bug fixes |
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10 | !! 3.4 ! 2012-09 (G. Reffray and J. Chanut) New inputs + mods |
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11 | !!---------------------------------------------------------------------- |
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12 | #if defined key_bdy |
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13 | !!---------------------------------------------------------------------- |
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14 | !! 'key_bdy' Open Boundary Condition |
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15 | !!---------------------------------------------------------------------- |
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16 | !! PUBLIC |
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17 | !! bdytide_init : read of namelist and initialisation of tidal harmonics data |
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18 | !! tide_update : calculation of tidal forcing at each timestep |
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19 | !!---------------------------------------------------------------------- |
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20 | USE timing ! Timing |
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21 | USE oce ! ocean dynamics and tracers |
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22 | USE dom_oce ! ocean space and time domain |
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23 | USE iom |
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24 | USE in_out_manager ! I/O units |
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25 | USE phycst ! physical constants |
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26 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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27 | USE bdy_par ! Unstructured boundary parameters |
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28 | USE bdy_oce ! ocean open boundary conditions |
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29 | USE daymod ! calendar |
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30 | USE wrk_nemo ! Memory allocation |
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31 | USE tideini |
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32 | ! USE tide_mod ! Useless ?? |
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33 | USE fldread, ONLY: fld_map |
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34 | |
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35 | IMPLICIT NONE |
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36 | PRIVATE |
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37 | |
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38 | PUBLIC bdytide_init ! routine called in bdy_init |
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39 | PUBLIC bdytide_update ! routine called in bdy_dta |
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40 | |
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41 | TYPE, PUBLIC :: TIDES_DATA !: Storage for external tidal harmonics data |
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42 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ssh0 !: Tidal constituents : SSH0 (read in file) |
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43 | REAL(wp), POINTER, DIMENSION(:,:,:) :: u0 !: Tidal constituents : U0 (read in file) |
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44 | REAL(wp), POINTER, DIMENSION(:,:,:) :: v0 !: Tidal constituents : V0 (read in file) |
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45 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ssh !: Tidal constituents : SSH (after nodal cor.) |
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46 | REAL(wp), POINTER, DIMENSION(:,:,:) :: u !: Tidal constituents : U (after nodal cor.) |
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47 | REAL(wp), POINTER, DIMENSION(:,:,:) :: v !: Tidal constituents : V (after nodal cor.) |
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48 | END TYPE TIDES_DATA |
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49 | |
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50 | TYPE(TIDES_DATA), PUBLIC, DIMENSION(jp_bdy), TARGET :: tides !: External tidal harmonics data |
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51 | |
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52 | !!---------------------------------------------------------------------- |
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53 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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54 | !! $Id$ |
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55 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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56 | !!---------------------------------------------------------------------- |
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57 | CONTAINS |
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58 | |
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59 | SUBROUTINE bdytide_init |
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60 | !!---------------------------------------------------------------------- |
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61 | !! *** SUBROUTINE bdytide_init *** |
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62 | !! |
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63 | !! ** Purpose : - Read in namelist for tides and initialise external |
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64 | !! tidal harmonics data |
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65 | !! |
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66 | !!---------------------------------------------------------------------- |
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67 | !! namelist variables |
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68 | !!------------------- |
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69 | CHARACTER(len=80) :: filtide !: Filename root for tidal input files |
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70 | LOGICAL :: ln_bdytide_2ddta !: If true, read 2d harmonic data |
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71 | LOGICAL :: ln_bdytide_conj !: If true, assume complex conjugate tidal data |
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72 | !! |
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73 | INTEGER :: ib_bdy, itide, ib !: dummy loop indices |
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74 | INTEGER :: ii, ij !: dummy loop indices |
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75 | INTEGER :: inum, igrd |
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76 | INTEGER, DIMENSION(3) :: ilen0 !: length of boundary data (from OBC arrays) |
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77 | INTEGER, POINTER, DIMENSION(:) :: nblen, nblenrim ! short cuts |
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78 | CHARACTER(len=80) :: clfile !: full file name for tidal input file |
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79 | REAL(wp),ALLOCATABLE, DIMENSION(:,:,:) :: dta_read !: work space to read in tidal harmonics data |
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80 | REAL(wp), POINTER, DIMENSION(:,:) :: ztr, zti !: " " " " " " " " |
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81 | !! |
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82 | TYPE(TIDES_DATA), POINTER :: td !: local short cut |
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83 | !! |
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84 | NAMELIST/nambdy_tide/filtide, ln_bdytide_2ddta, ln_bdytide_conj |
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85 | !!---------------------------------------------------------------------- |
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86 | |
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87 | IF( nn_timing == 1 ) CALL timing_start('bdytide_init') |
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88 | |
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89 | IF (nb_bdy>0) THEN |
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90 | IF(lwp) WRITE(numout,*) |
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91 | IF(lwp) WRITE(numout,*) 'bdytide_init : initialization of tidal harmonic forcing at open boundaries' |
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92 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~' |
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93 | ENDIF |
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94 | |
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95 | ln_bdytide_2ddta = .FALSE. |
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96 | ln_bdytide_conj = .FALSE. |
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97 | |
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98 | REWIND(numnam) |
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99 | DO ib_bdy = 1, nb_bdy |
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100 | IF( nn_dyn2d_dta(ib_bdy) .ge. 2 ) THEN |
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101 | |
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102 | td => tides(ib_bdy) |
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103 | nblen => idx_bdy(ib_bdy)%nblen |
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104 | nblenrim => idx_bdy(ib_bdy)%nblenrim |
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105 | |
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106 | ! Namelist nambdy_tide : tidal harmonic forcing at open boundaries |
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107 | filtide(:) = '' |
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108 | |
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109 | ! Don't REWIND here - may need to read more than one of these namelists. |
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110 | READ ( numnam, nambdy_tide ) |
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111 | ! ! Parameter control and print |
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112 | IF(lwp) WRITE(numout,*) ' ' |
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113 | IF(lwp) WRITE(numout,*) ' Namelist nambdy_tide : tidal harmonic forcing at open boundaries' |
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114 | IF(lwp) WRITE(numout,*) ' read tidal data in 2d files: ', ln_bdytide_2ddta |
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115 | IF(lwp) WRITE(numout,*) ' assume complex conjugate : ', ln_bdytide_conj |
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116 | IF(lwp) WRITE(numout,*) ' Number of tidal components to read: ', nb_harmo |
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117 | IF(lwp) THEN |
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118 | WRITE(numout,*) ' Tidal cpt name - Phase speed (deg/hr)' |
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119 | DO itide = 1, nb_harmo |
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120 | WRITE(numout,*) ' ', Wave(ntide(itide))%cname_tide, omega_tide(itide) |
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121 | END DO |
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122 | ENDIF |
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123 | IF(lwp) WRITE(numout,*) ' ' |
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124 | |
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125 | ! Allocate space for tidal harmonics data - get size from OBC data arrays |
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126 | ! ----------------------------------------------------------------------- |
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127 | |
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128 | ! JC: If FRS scheme is used, we assume that tidal is needed over the whole |
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129 | ! relaxation area |
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130 | IF( nn_dyn2d(ib_bdy) .eq. jp_frs ) THEN |
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131 | ilen0(:)=nblen(:) |
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132 | ELSE |
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133 | ilen0(:)=nblenrim(:) |
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134 | ENDIF |
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135 | |
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136 | ALLOCATE( td%ssh0( ilen0(1), nb_harmo, 2 ) ) |
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137 | ALLOCATE( td%ssh ( ilen0(1), nb_harmo, 2 ) ) |
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138 | |
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139 | ALLOCATE( td%u0( ilen0(2), nb_harmo, 2 ) ) |
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140 | ALLOCATE( td%u ( ilen0(2), nb_harmo, 2 ) ) |
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141 | |
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142 | ALLOCATE( td%v0( ilen0(3), nb_harmo, 2 ) ) |
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143 | ALLOCATE( td%v ( ilen0(3), nb_harmo, 2 ) ) |
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144 | |
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145 | td%ssh0(:,:,:) = 0.e0 |
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146 | td%ssh(:,:,:) = 0.e0 |
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147 | td%u0(:,:,:) = 0.e0 |
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148 | td%u(:,:,:) = 0.e0 |
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149 | td%v0(:,:,:) = 0.e0 |
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150 | td%v(:,:,:) = 0.e0 |
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151 | |
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152 | IF (ln_bdytide_2ddta) THEN |
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153 | ! It is assumed that each data file contains all complex harmonic amplitudes |
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154 | ! given on the data domain (ie global, jpidta x jpjdta) |
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155 | ! |
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156 | CALL wrk_alloc( jpi, jpj, zti, ztr ) |
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157 | ! |
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158 | ! SSH fields |
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159 | clfile = TRIM(filtide)//'_grid_T.nc' |
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160 | CALL iom_open (clfile , inum ) |
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161 | igrd = 1 ! Everything is at T-points here |
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162 | DO itide = 1, nb_harmo |
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163 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_z1', ztr(:,:) ) |
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164 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_z2', zti(:,:) ) |
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165 | DO ib = 1, ilen0(igrd) |
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166 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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167 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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168 | td%ssh0(ib,itide,1) = ztr(ii,ij) |
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169 | td%ssh0(ib,itide,2) = zti(ii,ij) |
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170 | END DO |
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171 | END DO |
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172 | CALL iom_close( inum ) |
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173 | ! |
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174 | ! U fields |
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175 | clfile = TRIM(filtide)//'_grid_U.nc' |
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176 | CALL iom_open (clfile , inum ) |
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177 | igrd = 2 ! Everything is at U-points here |
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178 | DO itide = 1, nb_harmo |
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179 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_u1', ztr(:,:) ) |
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180 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_u2', zti(:,:) ) |
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181 | DO ib = 1, ilen0(igrd) |
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182 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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183 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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184 | td%u0(ib,itide,1) = ztr(ii,ij) |
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185 | td%u0(ib,itide,2) = zti(ii,ij) |
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186 | END DO |
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187 | END DO |
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188 | CALL iom_close( inum ) |
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189 | ! |
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190 | ! V fields |
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191 | clfile = TRIM(filtide)//'_grid_V.nc' |
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192 | CALL iom_open (clfile , inum ) |
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193 | igrd = 3 ! Everything is at V-points here |
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194 | DO itide = 1, nb_harmo |
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195 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_v1', ztr(:,:) ) |
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196 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_v2', zti(:,:) ) |
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197 | DO ib = 1, ilen0(igrd) |
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198 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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199 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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200 | td%v0(ib,itide,1) = ztr(ii,ij) |
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201 | td%v0(ib,itide,2) = zti(ii,ij) |
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202 | END DO |
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203 | END DO |
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204 | CALL iom_close( inum ) |
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205 | ! |
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206 | CALL wrk_dealloc( jpi, jpj, ztr, zti ) |
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207 | ! |
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208 | ELSE |
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209 | ! |
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210 | ! Read tidal data only on bdy segments |
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211 | ! |
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212 | ALLOCATE( dta_read( MAXVAL(ilen0(1:3)), 1, 1 ) ) |
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213 | |
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214 | ! Open files and read in tidal forcing data |
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215 | ! ----------------------------------------- |
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216 | |
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217 | DO itide = 1, nb_harmo |
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218 | ! ! SSH fields |
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219 | clfile = TRIM(filtide)//TRIM(Wave(ntide(itide))%cname_tide)//'_grid_T.nc' |
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220 | CALL iom_open( clfile, inum ) |
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221 | CALL fld_map( inum, 'z1' , dta_read(1:ilen0(1),1:1,1:1) , 1, idx_bdy(ib_bdy)%nbmap(:,1) ) |
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222 | td%ssh0(:,itide,1) = dta_read(1:ilen0(1),1,1) |
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223 | CALL fld_map( inum, 'z2' , dta_read(1:ilen0(1),1:1,1:1) , 1, idx_bdy(ib_bdy)%nbmap(:,1) ) |
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224 | td%ssh0(:,itide,2) = dta_read(1:ilen0(1),1,1) |
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225 | CALL iom_close( inum ) |
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226 | ! ! U fields |
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227 | clfile = TRIM(filtide)//TRIM(Wave(ntide(itide))%cname_tide)//'_grid_U.nc' |
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228 | CALL iom_open( clfile, inum ) |
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229 | CALL fld_map( inum, 'u1' , dta_read(1:ilen0(2),1:1,1:1) , 1, idx_bdy(ib_bdy)%nbmap(:,2) ) |
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230 | td%u0(:,itide,1) = dta_read(1:ilen0(2),1,1) |
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231 | CALL fld_map( inum, 'u2' , dta_read(1:ilen0(2),1:1,1:1) , 1, idx_bdy(ib_bdy)%nbmap(:,2) ) |
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232 | td%u0(:,itide,2) = dta_read(1:ilen0(2),1,1) |
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233 | CALL iom_close( inum ) |
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234 | ! ! V fields |
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235 | clfile = TRIM(filtide)//TRIM(Wave(ntide(itide))%cname_tide)//'_grid_V.nc' |
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236 | CALL iom_open( clfile, inum ) |
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237 | CALL fld_map( inum, 'v1' , dta_read(1:ilen0(3),1:1,1:1) , 1, idx_bdy(ib_bdy)%nbmap(:,3) ) |
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238 | td%v0(:,itide,1) = dta_read(1:ilen0(3),1,1) |
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239 | CALL fld_map( inum, 'v2' , dta_read(1:ilen0(3),1:1,1:1) , 1, idx_bdy(ib_bdy)%nbmap(:,3) ) |
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240 | td%v0(:,itide,2) = dta_read(1:ilen0(3),1,1) |
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241 | CALL iom_close( inum ) |
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242 | ! |
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243 | END DO ! end loop on tidal components |
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244 | ! |
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245 | DEALLOCATE( dta_read ) |
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246 | ENDIF ! ln_bdytide_2ddta=.true. |
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247 | ! |
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248 | IF ( ln_bdytide_conj ) THEN ! assume complex conjugate in data files |
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249 | td%ssh0(:,:,2) = - td%ssh0(:,:,2) |
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250 | td%u0 (:,:,2) = - td%u0 (:,:,2) |
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251 | td%v0 (:,:,2) = - td%v0 (:,:,2) |
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252 | ENDIF |
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253 | ! |
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254 | ENDIF ! nn_dyn2d_dta(ib_bdy) .ge. 2 |
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255 | ! |
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256 | END DO ! loop on ib_bdy |
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257 | |
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258 | IF( nn_timing == 1 ) CALL timing_stop('bdytide_init') |
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259 | |
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260 | END SUBROUTINE bdytide_init |
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261 | |
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262 | SUBROUTINE bdytide_update ( kt, idx, dta, td, jit, time_offset ) |
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263 | !!---------------------------------------------------------------------- |
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264 | !! *** SUBROUTINE bdytide_update *** |
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265 | !! |
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266 | !! ** Purpose : - Add tidal forcing to ssh, u2d and v2d OBC data arrays. |
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267 | !! |
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268 | !!---------------------------------------------------------------------- |
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269 | INTEGER, INTENT( in ) :: kt ! Main timestep counter |
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270 | TYPE(OBC_INDEX), INTENT( in ) :: idx ! OBC indices |
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271 | TYPE(OBC_DATA), INTENT(inout) :: dta ! OBC external data |
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272 | TYPE(TIDES_DATA),INTENT( inout ) :: td ! tidal harmonics data |
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273 | INTEGER,INTENT(in),OPTIONAL :: jit ! Barotropic timestep counter (for timesplitting option) |
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274 | INTEGER,INTENT( in ), OPTIONAL :: time_offset ! time offset in units of timesteps. NB. if jit |
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275 | ! is present then units = subcycle timesteps. |
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276 | ! time_offset = 0 => get data at "now" time level |
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277 | ! time_offset = -1 => get data at "before" time level |
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278 | ! time_offset = +1 => get data at "after" time level |
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279 | ! etc. |
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280 | !! |
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281 | INTEGER, DIMENSION(3) :: ilen0 !: length of boundary data (from OBC arrays) |
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282 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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283 | INTEGER :: time_add ! time offset in units of timesteps |
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284 | REAL(wp) :: z_arg, z_sarg, zflag, zramp |
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285 | REAL(wp), DIMENSION(jpmax_harmo) :: z_sist, z_cost |
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286 | !!---------------------------------------------------------------------- |
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287 | |
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288 | IF( nn_timing == 1 ) CALL timing_start('bdytide_update') |
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289 | |
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290 | ilen0(1) = SIZE(td%ssh(:,1,1)) |
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291 | ilen0(2) = SIZE(td%u(:,1,1)) |
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292 | ilen0(3) = SIZE(td%v(:,1,1)) |
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293 | |
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294 | zflag=1 |
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295 | IF ( PRESENT(jit) ) THEN |
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296 | IF ( jit /= 1 ) zflag=0 |
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297 | ENDIF |
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298 | |
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299 | IF ( nsec_day == NINT(0.5 * rdttra(1)) .AND. zflag==1 ) THEN |
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300 | ! |
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301 | kt_tide = kt |
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302 | ! |
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303 | IF(lwp) THEN |
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304 | WRITE(numout,*) |
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305 | WRITE(numout,*) 'bdytide_update : (re)Initialization of the tidal bdy forcing at kt=',kt |
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306 | WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
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307 | ENDIF |
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308 | ! |
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309 | CALL tide_init_elevation ( idx, td ) |
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310 | CALL tide_init_velocities( idx, td ) |
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311 | ! |
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312 | ENDIF |
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313 | |
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314 | time_add = 0 |
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315 | IF( PRESENT(time_offset) ) THEN |
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316 | time_add = time_offset |
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317 | ENDIF |
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318 | |
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319 | IF( PRESENT(jit) ) THEN |
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320 | z_arg = ( ((kt-kt_tide)-1) * rdt + (jit+time_add) * rdt / REAL(nn_baro,wp) ) |
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321 | ELSE |
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322 | z_arg = ((kt-kt_tide)+time_add) * rdt |
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323 | ENDIF |
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324 | |
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325 | ! Linear ramp on tidal component at open boundaries |
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326 | zramp = 1. |
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327 | IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg + (kt_tide-nit000)*rdt)/(rdttideramp*rday),0.),1.) |
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328 | |
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329 | DO itide = 1, nb_harmo |
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330 | z_sarg = z_arg * omega_tide(itide) |
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331 | z_cost(itide) = COS( z_sarg ) |
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332 | z_sist(itide) = SIN( z_sarg ) |
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333 | END DO |
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334 | |
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335 | DO itide = 1, nb_harmo |
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336 | igrd=1 ! SSH on tracer grid |
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337 | DO ib = 1, ilen0(igrd) |
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338 | dta%ssh(ib) = dta%ssh(ib) + zramp*(td%ssh(ib,itide,1)*z_cost(itide) + td%ssh(ib,itide,2)*z_sist(itide)) |
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339 | END DO |
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340 | igrd=2 ! U grid |
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341 | DO ib = 1, ilen0(igrd) |
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342 | dta%u2d(ib) = dta%u2d(ib) + zramp*(td%u (ib,itide,1)*z_cost(itide) + td%u (ib,itide,2)*z_sist(itide)) |
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343 | END DO |
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344 | igrd=3 ! V grid |
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345 | DO ib = 1, ilen0(igrd) |
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346 | dta%v2d(ib) = dta%v2d(ib) + zramp*(td%v (ib,itide,1)*z_cost(itide) + td%v (ib,itide,2)*z_sist(itide)) |
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347 | END DO |
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348 | END DO |
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349 | ! |
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350 | IF( nn_timing == 1 ) CALL timing_stop('bdytide_update') |
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351 | ! |
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352 | END SUBROUTINE bdytide_update |
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353 | |
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354 | SUBROUTINE tide_init_elevation( idx, td ) |
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355 | !!---------------------------------------------------------------------- |
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356 | !! *** ROUTINE tide_init_elevation *** |
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357 | !!---------------------------------------------------------------------- |
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358 | TYPE(OBC_INDEX), INTENT( in ) :: idx ! OBC indices |
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359 | TYPE(TIDES_DATA),INTENT( inout ) :: td ! tidal harmonics data |
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360 | !! * Local declarations |
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361 | INTEGER, DIMENSION(1) :: ilen0 !: length of boundary data (from OBC arrays) |
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362 | REAL(wp),ALLOCATABLE, DIMENSION(:) :: mod_tide, phi_tide |
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363 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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364 | |
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365 | igrd=1 |
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366 | ! SSH on tracer grid. |
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367 | |
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368 | ilen0(1) = SIZE(td%ssh0(:,1,1)) |
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369 | |
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370 | ALLOCATE(mod_tide(ilen0(igrd)),phi_tide(ilen0(igrd))) |
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371 | |
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372 | DO itide = 1, nb_harmo |
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373 | DO ib = 1, ilen0(igrd) |
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374 | mod_tide(ib)=SQRT(td%ssh0(ib,itide,1)**2.+td%ssh0(ib,itide,2)**2.) |
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375 | phi_tide(ib)=ATAN2(-td%ssh0(ib,itide,2),td%ssh0(ib,itide,1)) |
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376 | END DO |
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377 | DO ib = 1 , ilen0(igrd) |
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378 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
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379 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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380 | ENDDO |
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381 | DO ib = 1 , ilen0(igrd) |
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382 | td%ssh(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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383 | td%ssh(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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384 | ENDDO |
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385 | END DO |
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386 | |
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387 | DEALLOCATE(mod_tide,phi_tide) |
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388 | |
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389 | END SUBROUTINE tide_init_elevation |
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390 | |
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391 | SUBROUTINE tide_init_velocities( idx, td ) |
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392 | !!---------------------------------------------------------------------- |
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393 | !! *** ROUTINE tide_init_elevation *** |
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394 | !!---------------------------------------------------------------------- |
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395 | TYPE(OBC_INDEX), INTENT( in ) :: idx ! OBC indices |
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396 | TYPE(TIDES_DATA),INTENT( inout ) :: td ! tidal harmonics data |
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397 | !! * Local declarations |
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398 | INTEGER, DIMENSION(3) :: ilen0 !: length of boundary data (from OBC arrays) |
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399 | REAL(wp),ALLOCATABLE, DIMENSION(:) :: mod_tide, phi_tide |
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400 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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401 | |
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402 | ilen0(2) = SIZE(td%u0(:,1,1)) |
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403 | ilen0(3) = SIZE(td%v0(:,1,1)) |
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404 | |
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405 | igrd=2 ! U grid. |
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406 | |
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407 | ALLOCATE(mod_tide(ilen0(igrd)),phi_tide(ilen0(igrd))) |
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408 | |
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409 | DO itide = 1, nb_harmo |
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410 | DO ib = 1, ilen0(igrd) |
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411 | mod_tide(ib)=SQRT(td%u0(ib,itide,1)**2.+td%u0(ib,itide,2)**2.) |
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412 | phi_tide(ib)=ATAN2(-td%u0(ib,itide,2),td%u0(ib,itide,1)) |
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413 | END DO |
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414 | DO ib = 1, ilen0(igrd) |
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415 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
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416 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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417 | ENDDO |
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418 | DO ib = 1, ilen0(igrd) |
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419 | td%u(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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420 | td%u(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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421 | ENDDO |
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422 | END DO |
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423 | |
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424 | DEALLOCATE(mod_tide,phi_tide) |
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425 | |
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426 | igrd=3 ! V grid. |
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427 | |
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428 | ALLOCATE(mod_tide(ilen0(igrd)),phi_tide(ilen0(igrd))) |
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429 | |
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430 | DO itide = 1, nb_harmo |
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431 | DO ib = 1, ilen0(igrd) |
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432 | mod_tide(ib)=SQRT(td%v0(ib,itide,1)**2.+td%v0(ib,itide,2)**2.) |
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433 | phi_tide(ib)=ATAN2(-td%v0(ib,itide,2),td%v0(ib,itide,1)) |
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434 | END DO |
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435 | DO ib = 1, ilen0(igrd) |
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436 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
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437 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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438 | ENDDO |
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439 | DO ib = 1, ilen0(igrd) |
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440 | td%v(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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441 | td%v(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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442 | ENDDO |
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443 | END DO |
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444 | |
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445 | DEALLOCATE(mod_tide,phi_tide) |
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446 | |
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447 | END SUBROUTINE tide_init_velocities |
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448 | #else |
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449 | !!---------------------------------------------------------------------- |
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450 | !! Dummy module NO Unstruct Open Boundary Conditions for tides |
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451 | !!---------------------------------------------------------------------- |
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452 | CONTAINS |
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453 | SUBROUTINE bdytide_init ! Empty routine |
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454 | WRITE(*,*) 'bdytide_init: You should not have seen this print! error?' |
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455 | END SUBROUTINE bdytide_init |
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456 | SUBROUTINE bdytide_update( kt, jit ) ! Empty routine |
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457 | WRITE(*,*) 'bdytide_update: You should not have seen this print! error?', kt, jit |
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458 | END SUBROUTINE bdytide_update |
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459 | #endif |
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460 | |
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461 | !!====================================================================== |
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462 | END MODULE bdytides |
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