[911] | 1 | MODULE bdytides |
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[1125] | 2 | !!====================================================================== |
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[911] | 3 | !! *** MODULE bdytides *** |
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| 4 | !! Ocean dynamics: Tidal forcing at open boundaries |
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[1125] | 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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[2528] | 9 | !! 3.3 ! 2010-09 (D.Storkey and E.O'Dea) bug fixes |
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[3651] | 10 | !! 3.4 ! 2012-09 (G. Reffray and J. Chanut) New inputs + mods |
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[4292] | 11 | !! 3.5 ! 2013-07 (J. Chanut) Compliant with time splitting changes |
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[1125] | 12 | !!---------------------------------------------------------------------- |
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| 13 | #if defined key_bdy |
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| 14 | !!---------------------------------------------------------------------- |
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[3294] | 15 | !! 'key_bdy' Open Boundary Condition |
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[1125] | 16 | !!---------------------------------------------------------------------- |
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[911] | 17 | !! PUBLIC |
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[3651] | 18 | !! bdytide_init : read of namelist and initialisation of tidal harmonics data |
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[1125] | 19 | !! tide_update : calculation of tidal forcing at each timestep |
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| 20 | !!---------------------------------------------------------------------- |
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[3294] | 21 | USE timing ! Timing |
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[911] | 22 | USE oce ! ocean dynamics and tracers |
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| 23 | USE dom_oce ! ocean space and time domain |
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| 24 | USE iom |
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| 25 | USE in_out_manager ! I/O units |
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| 26 | USE phycst ! physical constants |
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| 27 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 28 | USE bdy_par ! Unstructured boundary parameters |
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| 29 | USE bdy_oce ! ocean open boundary conditions |
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[2528] | 30 | USE daymod ! calendar |
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[3651] | 31 | USE wrk_nemo ! Memory allocation |
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| 32 | USE tideini |
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| 33 | ! USE tide_mod ! Useless ?? |
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[3294] | 34 | USE fldread, ONLY: fld_map |
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[4292] | 35 | USE dynspg_oce, ONLY: lk_dynspg_ts |
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[1125] | 36 | |
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[911] | 37 | IMPLICIT NONE |
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| 38 | PRIVATE |
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| 39 | |
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[3651] | 40 | PUBLIC bdytide_init ! routine called in bdy_init |
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| 41 | PUBLIC bdytide_update ! routine called in bdy_dta |
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[4292] | 42 | PUBLIC bdy_dta_tides ! routine called in dyn_spg_ts |
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[911] | 43 | |
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[3294] | 44 | TYPE, PUBLIC :: TIDES_DATA !: Storage for external tidal harmonics data |
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[3651] | 45 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ssh0 !: Tidal constituents : SSH0 (read in file) |
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| 46 | REAL(wp), POINTER, DIMENSION(:,:,:) :: u0 !: Tidal constituents : U0 (read in file) |
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| 47 | REAL(wp), POINTER, DIMENSION(:,:,:) :: v0 !: Tidal constituents : V0 (read in file) |
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| 48 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ssh !: Tidal constituents : SSH (after nodal cor.) |
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| 49 | REAL(wp), POINTER, DIMENSION(:,:,:) :: u !: Tidal constituents : U (after nodal cor.) |
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| 50 | REAL(wp), POINTER, DIMENSION(:,:,:) :: v !: Tidal constituents : V (after nodal cor.) |
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[3294] | 51 | END TYPE TIDES_DATA |
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[911] | 52 | |
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[3651] | 53 | TYPE(TIDES_DATA), PUBLIC, DIMENSION(jp_bdy), TARGET :: tides !: External tidal harmonics data |
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[4292] | 54 | TYPE(OBC_DATA) , PRIVATE, DIMENSION(jp_bdy) :: dta_bdy_s !: bdy external data (slow component) |
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[911] | 55 | |
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[1125] | 56 | !!---------------------------------------------------------------------- |
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[2528] | 57 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[1146] | 58 | !! $Id$ |
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[2528] | 59 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[1125] | 60 | !!---------------------------------------------------------------------- |
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[911] | 61 | CONTAINS |
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| 62 | |
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[3651] | 63 | SUBROUTINE bdytide_init |
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[1125] | 64 | !!---------------------------------------------------------------------- |
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[3651] | 65 | !! *** SUBROUTINE bdytide_init *** |
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[1125] | 66 | !! |
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[3294] | 67 | !! ** Purpose : - Read in namelist for tides and initialise external |
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| 68 | !! tidal harmonics data |
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[911] | 69 | !! |
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| 70 | !!---------------------------------------------------------------------- |
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[3294] | 71 | !! namelist variables |
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| 72 | !!------------------- |
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[3651] | 73 | CHARACTER(len=80) :: filtide !: Filename root for tidal input files |
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| 74 | LOGICAL :: ln_bdytide_2ddta !: If true, read 2d harmonic data |
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| 75 | LOGICAL :: ln_bdytide_conj !: If true, assume complex conjugate tidal data |
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[1125] | 76 | !! |
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[3651] | 77 | INTEGER :: ib_bdy, itide, ib !: dummy loop indices |
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| 78 | INTEGER :: ii, ij !: dummy loop indices |
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[3294] | 79 | INTEGER :: inum, igrd |
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[3651] | 80 | INTEGER, DIMENSION(3) :: ilen0 !: length of boundary data (from OBC arrays) |
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| 81 | INTEGER, POINTER, DIMENSION(:) :: nblen, nblenrim ! short cuts |
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[4147] | 82 | INTEGER :: ios ! Local integer output status for namelist read |
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[3651] | 83 | CHARACTER(len=80) :: clfile !: full file name for tidal input file |
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| 84 | REAL(wp),ALLOCATABLE, DIMENSION(:,:,:) :: dta_read !: work space to read in tidal harmonics data |
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| 85 | REAL(wp), POINTER, DIMENSION(:,:) :: ztr, zti !: " " " " " " " " |
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[3294] | 86 | !! |
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[3651] | 87 | TYPE(TIDES_DATA), POINTER :: td !: local short cut |
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[3294] | 88 | !! |
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[3651] | 89 | NAMELIST/nambdy_tide/filtide, ln_bdytide_2ddta, ln_bdytide_conj |
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[1125] | 90 | !!---------------------------------------------------------------------- |
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[911] | 91 | |
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[3651] | 92 | IF( nn_timing == 1 ) CALL timing_start('bdytide_init') |
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[3294] | 93 | |
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[3651] | 94 | IF (nb_bdy>0) THEN |
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| 95 | IF(lwp) WRITE(numout,*) |
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| 96 | IF(lwp) WRITE(numout,*) 'bdytide_init : initialization of tidal harmonic forcing at open boundaries' |
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| 97 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~' |
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| 98 | ENDIF |
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[911] | 99 | |
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[4147] | 100 | REWIND(numnam_cfg) |
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[3651] | 101 | |
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[3294] | 102 | DO ib_bdy = 1, nb_bdy |
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| 103 | IF( nn_dyn2d_dta(ib_bdy) .ge. 2 ) THEN |
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[2528] | 104 | |
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[3294] | 105 | td => tides(ib_bdy) |
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[3651] | 106 | nblen => idx_bdy(ib_bdy)%nblen |
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| 107 | nblenrim => idx_bdy(ib_bdy)%nblenrim |
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[911] | 108 | |
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[3294] | 109 | ! Namelist nambdy_tide : tidal harmonic forcing at open boundaries |
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| 110 | filtide(:) = '' |
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[911] | 111 | |
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[4147] | 112 | ! Don't REWIND here - may need to read more than one of these namelists. |
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| 113 | READ ( numnam_ref, nambdy_tide, IOSTAT = ios, ERR = 901) |
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| 114 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_tide in reference namelist', lwp ) |
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| 115 | READ ( numnam_cfg, nambdy_tide, IOSTAT = ios, ERR = 902 ) |
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| 116 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_tide in configuration namelist', lwp ) |
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| 117 | WRITE ( numond, nambdy_tide ) |
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[3651] | 118 | ! ! Parameter control and print |
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| 119 | IF(lwp) WRITE(numout,*) ' ' |
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| 120 | IF(lwp) WRITE(numout,*) ' Namelist nambdy_tide : tidal harmonic forcing at open boundaries' |
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| 121 | IF(lwp) WRITE(numout,*) ' read tidal data in 2d files: ', ln_bdytide_2ddta |
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| 122 | IF(lwp) WRITE(numout,*) ' assume complex conjugate : ', ln_bdytide_conj |
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| 123 | IF(lwp) WRITE(numout,*) ' Number of tidal components to read: ', nb_harmo |
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| 124 | IF(lwp) THEN |
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| 125 | WRITE(numout,*) ' Tidal cpt name - Phase speed (deg/hr)' |
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| 126 | DO itide = 1, nb_harmo |
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| 127 | WRITE(numout,*) ' ', Wave(ntide(itide))%cname_tide, omega_tide(itide) |
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| 128 | END DO |
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| 129 | ENDIF |
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| 130 | IF(lwp) WRITE(numout,*) ' ' |
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[1125] | 131 | |
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[3651] | 132 | ! Allocate space for tidal harmonics data - get size from OBC data arrays |
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| 133 | ! ----------------------------------------------------------------------- |
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[911] | 134 | |
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[3651] | 135 | ! JC: If FRS scheme is used, we assume that tidal is needed over the whole |
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| 136 | ! relaxation area |
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[4292] | 137 | IF( cn_dyn2d(ib_bdy) == 'frs' ) THEN |
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[3651] | 138 | ilen0(:)=nblen(:) |
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[3294] | 139 | ELSE |
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[3651] | 140 | ilen0(:)=nblenrim(:) |
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[3294] | 141 | ENDIF |
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[911] | 142 | |
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[3651] | 143 | ALLOCATE( td%ssh0( ilen0(1), nb_harmo, 2 ) ) |
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| 144 | ALLOCATE( td%ssh ( ilen0(1), nb_harmo, 2 ) ) |
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[911] | 145 | |
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[3651] | 146 | ALLOCATE( td%u0( ilen0(2), nb_harmo, 2 ) ) |
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| 147 | ALLOCATE( td%u ( ilen0(2), nb_harmo, 2 ) ) |
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[911] | 148 | |
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[3651] | 149 | ALLOCATE( td%v0( ilen0(3), nb_harmo, 2 ) ) |
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| 150 | ALLOCATE( td%v ( ilen0(3), nb_harmo, 2 ) ) |
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[911] | 151 | |
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[4292] | 152 | td%ssh0(:,:,:) = 0._wp |
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| 153 | td%ssh (:,:,:) = 0._wp |
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| 154 | td%u0 (:,:,:) = 0._wp |
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| 155 | td%u (:,:,:) = 0._wp |
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| 156 | td%v0 (:,:,:) = 0._wp |
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| 157 | td%v (:,:,:) = 0._wp |
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[3294] | 158 | |
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[3651] | 159 | IF (ln_bdytide_2ddta) THEN |
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| 160 | ! It is assumed that each data file contains all complex harmonic amplitudes |
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| 161 | ! given on the data domain (ie global, jpidta x jpjdta) |
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| 162 | ! |
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| 163 | CALL wrk_alloc( jpi, jpj, zti, ztr ) |
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| 164 | ! |
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| 165 | ! SSH fields |
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| 166 | clfile = TRIM(filtide)//'_grid_T.nc' |
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| 167 | CALL iom_open (clfile , inum ) |
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| 168 | igrd = 1 ! Everything is at T-points here |
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| 169 | DO itide = 1, nb_harmo |
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| 170 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_z1', ztr(:,:) ) |
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| 171 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_z2', zti(:,:) ) |
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| 172 | DO ib = 1, ilen0(igrd) |
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| 173 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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| 174 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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| 175 | td%ssh0(ib,itide,1) = ztr(ii,ij) |
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| 176 | td%ssh0(ib,itide,2) = zti(ii,ij) |
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| 177 | END DO |
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| 178 | END DO |
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[3294] | 179 | CALL iom_close( inum ) |
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[3651] | 180 | ! |
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| 181 | ! U fields |
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| 182 | clfile = TRIM(filtide)//'_grid_U.nc' |
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| 183 | CALL iom_open (clfile , inum ) |
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| 184 | igrd = 2 ! Everything is at U-points here |
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| 185 | DO itide = 1, nb_harmo |
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| 186 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_u1', ztr(:,:) ) |
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| 187 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_u2', zti(:,:) ) |
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| 188 | DO ib = 1, ilen0(igrd) |
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| 189 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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| 190 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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| 191 | td%u0(ib,itide,1) = ztr(ii,ij) |
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| 192 | td%u0(ib,itide,2) = zti(ii,ij) |
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| 193 | END DO |
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| 194 | END DO |
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[3294] | 195 | CALL iom_close( inum ) |
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[3651] | 196 | ! |
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| 197 | ! V fields |
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| 198 | clfile = TRIM(filtide)//'_grid_V.nc' |
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| 199 | CALL iom_open (clfile , inum ) |
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| 200 | igrd = 3 ! Everything is at V-points here |
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| 201 | DO itide = 1, nb_harmo |
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| 202 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_v1', ztr(:,:) ) |
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| 203 | CALL iom_get ( inum, jpdom_data, TRIM(Wave(ntide(itide))%cname_tide)//'_v2', zti(:,:) ) |
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| 204 | DO ib = 1, ilen0(igrd) |
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| 205 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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| 206 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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| 207 | td%v0(ib,itide,1) = ztr(ii,ij) |
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| 208 | td%v0(ib,itide,2) = zti(ii,ij) |
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| 209 | END DO |
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| 210 | END DO |
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[3294] | 211 | CALL iom_close( inum ) |
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| 212 | ! |
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[3651] | 213 | CALL wrk_dealloc( jpi, jpj, ztr, zti ) |
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| 214 | ! |
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| 215 | ELSE |
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| 216 | ! |
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| 217 | ! Read tidal data only on bdy segments |
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| 218 | ! |
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| 219 | ALLOCATE( dta_read( MAXVAL(ilen0(1:3)), 1, 1 ) ) |
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[3294] | 220 | |
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[3651] | 221 | ! Open files and read in tidal forcing data |
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| 222 | ! ----------------------------------------- |
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[3294] | 223 | |
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[3651] | 224 | DO itide = 1, nb_harmo |
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| 225 | ! ! SSH fields |
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| 226 | clfile = TRIM(filtide)//TRIM(Wave(ntide(itide))%cname_tide)//'_grid_T.nc' |
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| 227 | CALL iom_open( clfile, inum ) |
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| 228 | 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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| 229 | td%ssh0(:,itide,1) = dta_read(1:ilen0(1),1,1) |
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| 230 | 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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| 231 | td%ssh0(:,itide,2) = dta_read(1:ilen0(1),1,1) |
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| 232 | CALL iom_close( inum ) |
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| 233 | ! ! U fields |
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| 234 | clfile = TRIM(filtide)//TRIM(Wave(ntide(itide))%cname_tide)//'_grid_U.nc' |
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| 235 | CALL iom_open( clfile, inum ) |
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| 236 | 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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| 237 | td%u0(:,itide,1) = dta_read(1:ilen0(2),1,1) |
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| 238 | 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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| 239 | td%u0(:,itide,2) = dta_read(1:ilen0(2),1,1) |
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| 240 | CALL iom_close( inum ) |
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| 241 | ! ! V fields |
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| 242 | clfile = TRIM(filtide)//TRIM(Wave(ntide(itide))%cname_tide)//'_grid_V.nc' |
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| 243 | CALL iom_open( clfile, inum ) |
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| 244 | 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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| 245 | td%v0(:,itide,1) = dta_read(1:ilen0(3),1,1) |
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| 246 | 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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| 247 | td%v0(:,itide,2) = dta_read(1:ilen0(3),1,1) |
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| 248 | CALL iom_close( inum ) |
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[3294] | 249 | ! |
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[3651] | 250 | END DO ! end loop on tidal components |
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[3294] | 251 | ! |
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[3651] | 252 | DEALLOCATE( dta_read ) |
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| 253 | ENDIF ! ln_bdytide_2ddta=.true. |
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[1125] | 254 | ! |
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[3651] | 255 | IF ( ln_bdytide_conj ) THEN ! assume complex conjugate in data files |
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| 256 | td%ssh0(:,:,2) = - td%ssh0(:,:,2) |
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| 257 | td%u0 (:,:,2) = - td%u0 (:,:,2) |
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| 258 | td%v0 (:,:,2) = - td%v0 (:,:,2) |
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| 259 | ENDIF |
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| 260 | ! |
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[4292] | 261 | IF ( lk_dynspg_ts ) THEN ! Allocate arrays to save slowly varying boundary data during |
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| 262 | ! time splitting integration |
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| 263 | ALLOCATE( dta_bdy_s(ib_bdy)%ssh ( ilen0(1) ) ) |
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| 264 | ALLOCATE( dta_bdy_s(ib_bdy)%u2d ( ilen0(2) ) ) |
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| 265 | ALLOCATE( dta_bdy_s(ib_bdy)%v2d ( ilen0(3) ) ) |
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| 266 | dta_bdy_s(ib_bdy)%ssh(:) = 0.e0 |
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| 267 | dta_bdy_s(ib_bdy)%u2d(:) = 0.e0 |
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| 268 | dta_bdy_s(ib_bdy)%v2d(:) = 0.e0 |
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| 269 | ENDIF |
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| 270 | ! |
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[3294] | 271 | ENDIF ! nn_dyn2d_dta(ib_bdy) .ge. 2 |
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[1125] | 272 | ! |
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[3294] | 273 | END DO ! loop on ib_bdy |
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[911] | 274 | |
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[3651] | 275 | IF( nn_timing == 1 ) CALL timing_stop('bdytide_init') |
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[1125] | 276 | |
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[3651] | 277 | END SUBROUTINE bdytide_init |
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[3294] | 278 | |
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[3651] | 279 | SUBROUTINE bdytide_update ( kt, idx, dta, td, jit, time_offset ) |
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[1125] | 280 | !!---------------------------------------------------------------------- |
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[3651] | 281 | !! *** SUBROUTINE bdytide_update *** |
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[1125] | 282 | !! |
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[3294] | 283 | !! ** Purpose : - Add tidal forcing to ssh, u2d and v2d OBC data arrays. |
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[911] | 284 | !! |
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[1125] | 285 | !!---------------------------------------------------------------------- |
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[3651] | 286 | INTEGER, INTENT( in ) :: kt ! Main timestep counter |
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| 287 | TYPE(OBC_INDEX), INTENT( in ) :: idx ! OBC indices |
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| 288 | TYPE(OBC_DATA), INTENT(inout) :: dta ! OBC external data |
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| 289 | TYPE(TIDES_DATA),INTENT( inout ) :: td ! tidal harmonics data |
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| 290 | INTEGER,INTENT(in),OPTIONAL :: jit ! Barotropic timestep counter (for timesplitting option) |
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| 291 | INTEGER,INTENT( in ), OPTIONAL :: time_offset ! time offset in units of timesteps. NB. if jit |
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| 292 | ! is present then units = subcycle timesteps. |
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| 293 | ! time_offset = 0 => get data at "now" time level |
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| 294 | ! time_offset = -1 => get data at "before" time level |
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| 295 | ! time_offset = +1 => get data at "after" time level |
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| 296 | ! etc. |
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[1125] | 297 | !! |
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[3651] | 298 | INTEGER, DIMENSION(3) :: ilen0 !: length of boundary data (from OBC arrays) |
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| 299 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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| 300 | INTEGER :: time_add ! time offset in units of timesteps |
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| 301 | REAL(wp) :: z_arg, z_sarg, zflag, zramp |
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| 302 | REAL(wp), DIMENSION(jpmax_harmo) :: z_sist, z_cost |
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[1125] | 303 | !!---------------------------------------------------------------------- |
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[911] | 304 | |
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[3651] | 305 | IF( nn_timing == 1 ) CALL timing_start('bdytide_update') |
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[3294] | 306 | |
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[3651] | 307 | ilen0(1) = SIZE(td%ssh(:,1,1)) |
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| 308 | ilen0(2) = SIZE(td%u(:,1,1)) |
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| 309 | ilen0(3) = SIZE(td%v(:,1,1)) |
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| 310 | |
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| 311 | zflag=1 |
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| 312 | IF ( PRESENT(jit) ) THEN |
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| 313 | IF ( jit /= 1 ) zflag=0 |
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| 314 | ENDIF |
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| 315 | |
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[4292] | 316 | IF ( nsec_day == NINT(0.5_wp * rdttra(1)) .AND. zflag==1 ) THEN |
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[3651] | 317 | ! |
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| 318 | kt_tide = kt |
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| 319 | ! |
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| 320 | IF(lwp) THEN |
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| 321 | WRITE(numout,*) |
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| 322 | WRITE(numout,*) 'bdytide_update : (re)Initialization of the tidal bdy forcing at kt=',kt |
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| 323 | WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
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| 324 | ENDIF |
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| 325 | ! |
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| 326 | CALL tide_init_elevation ( idx, td ) |
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| 327 | CALL tide_init_velocities( idx, td ) |
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| 328 | ! |
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| 329 | ENDIF |
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| 330 | |
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[3294] | 331 | time_add = 0 |
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| 332 | IF( PRESENT(time_offset) ) THEN |
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| 333 | time_add = time_offset |
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| 334 | ENDIF |
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| 335 | |
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| 336 | IF( PRESENT(jit) ) THEN |
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[4292] | 337 | z_arg = ((kt-kt_tide) * rdt + (jit+0.5_wp*(time_add-1)) * rdt / REAL(nn_baro,wp) ) |
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[3294] | 338 | ELSE |
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[3651] | 339 | z_arg = ((kt-kt_tide)+time_add) * rdt |
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[1125] | 340 | ENDIF |
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[911] | 341 | |
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[3651] | 342 | ! Linear ramp on tidal component at open boundaries |
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[4292] | 343 | zramp = 1._wp |
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| 344 | IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg + (kt_tide-nit000)*rdt)/(rdttideramp*rday),0._wp),1._wp) |
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[3651] | 345 | |
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| 346 | DO itide = 1, nb_harmo |
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| 347 | z_sarg = z_arg * omega_tide(itide) |
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[1125] | 348 | z_cost(itide) = COS( z_sarg ) |
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| 349 | z_sist(itide) = SIN( z_sarg ) |
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| 350 | END DO |
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[911] | 351 | |
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[3651] | 352 | DO itide = 1, nb_harmo |
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| 353 | igrd=1 ! SSH on tracer grid |
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| 354 | DO ib = 1, ilen0(igrd) |
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| 355 | 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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[1125] | 356 | END DO |
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[3294] | 357 | igrd=2 ! U grid |
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[3651] | 358 | DO ib = 1, ilen0(igrd) |
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| 359 | 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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[1125] | 360 | END DO |
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[3294] | 361 | igrd=3 ! V grid |
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[3651] | 362 | DO ib = 1, ilen0(igrd) |
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| 363 | 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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[1125] | 364 | END DO |
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| 365 | END DO |
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| 366 | ! |
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[3651] | 367 | IF( nn_timing == 1 ) CALL timing_stop('bdytide_update') |
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[3294] | 368 | ! |
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[3651] | 369 | END SUBROUTINE bdytide_update |
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[911] | 370 | |
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[4292] | 371 | SUBROUTINE bdy_dta_tides( kt, kit, time_offset ) |
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| 372 | !!---------------------------------------------------------------------- |
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| 373 | !! *** SUBROUTINE bdy_dta_tides *** |
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| 374 | !! |
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| 375 | !! ** Purpose : - Add tidal forcing to ssh, u2d and v2d OBC data arrays. |
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| 376 | !! |
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| 377 | !!---------------------------------------------------------------------- |
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| 378 | INTEGER, INTENT( in ) :: kt ! Main timestep counter |
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| 379 | INTEGER, INTENT( in ),OPTIONAL :: kit ! Barotropic timestep counter (for timesplitting option) |
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| 380 | INTEGER, INTENT( in ),OPTIONAL :: time_offset ! time offset in units of timesteps. NB. if kit |
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| 381 | ! is present then units = subcycle timesteps. |
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| 382 | ! time_offset = 0 => get data at "now" time level |
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| 383 | ! time_offset = -1 => get data at "before" time level |
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| 384 | ! time_offset = +1 => get data at "after" time level |
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| 385 | ! etc. |
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| 386 | !! |
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| 387 | LOGICAL :: lk_first_btstp ! =.TRUE. if time splitting and first barotropic step |
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| 388 | INTEGER, DIMENSION(jpbgrd) :: ilen0 |
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| 389 | INTEGER, DIMENSION(1:jpbgrd) :: nblen, nblenrim ! short cuts |
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| 390 | INTEGER :: itide, ib_bdy, ib, igrd ! loop indices |
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| 391 | INTEGER :: time_add ! time offset in units of timesteps |
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| 392 | REAL(wp) :: z_arg, z_sarg, zramp, zoff, z_cost, z_sist |
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| 393 | !!---------------------------------------------------------------------- |
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| 394 | |
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| 395 | IF( nn_timing == 1 ) CALL timing_start('bdy_dta_tides') |
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| 396 | |
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| 397 | lk_first_btstp=.TRUE. |
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| 398 | IF ( PRESENT(kit).AND.( kit /= 1 ) ) THEN ; lk_first_btstp=.FALSE. ; ENDIF |
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| 399 | |
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| 400 | time_add = 0 |
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| 401 | IF( PRESENT(time_offset) ) THEN |
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| 402 | time_add = time_offset |
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| 403 | ENDIF |
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| 404 | |
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| 405 | ! Absolute time from model initialization: |
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| 406 | IF( PRESENT(kit) ) THEN |
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| 407 | z_arg = ( kt + (kit+0.5_wp*(time_add-1)) / REAL(nn_baro,wp) ) * rdt |
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| 408 | ELSE |
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| 409 | z_arg = ( kt + time_add ) * rdt |
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| 410 | ENDIF |
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| 411 | |
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| 412 | ! Linear ramp on tidal component at open boundaries |
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| 413 | zramp = 1. |
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| 414 | IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg - nit000*rdt)/(rdttideramp*rday),0.),1.) |
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| 415 | |
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| 416 | DO ib_bdy = 1,nb_bdy |
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| 417 | |
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| 418 | ! line below should be simplified (runoff case) |
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| 419 | !! CHANUT: TO BE SORTED OUT |
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| 420 | !! IF (( nn_dyn2d_dta(ib_bdy) .ge. 2 ).AND.(nn_tra(ib_bdy).NE.4)) THEN |
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| 421 | IF ( nn_dyn2d_dta(ib_bdy) .ge. 2 ) THEN |
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| 422 | |
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| 423 | nblen(1:jpbgrd) = idx_bdy(ib_bdy)%nblen(1:jpbgrd) |
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| 424 | nblenrim(1:jpbgrd) = idx_bdy(ib_bdy)%nblenrim(1:jpbgrd) |
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| 425 | |
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| 426 | IF( cn_dyn2d(ib_bdy) == 'frs' ) THEN |
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| 427 | ilen0(:)=nblen(:) |
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| 428 | ELSE |
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| 429 | ilen0(:)=nblenrim(:) |
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| 430 | ENDIF |
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| 431 | |
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| 432 | ! We refresh nodal factors every day below |
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| 433 | ! This should be done somewhere else |
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| 434 | IF ( nsec_day == NINT(0.5_wp * rdttra(1)) .AND. lk_first_btstp ) THEN |
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| 435 | ! |
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| 436 | kt_tide = kt |
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| 437 | ! |
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| 438 | IF(lwp) THEN |
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| 439 | WRITE(numout,*) |
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| 440 | WRITE(numout,*) 'bdy_tide_dta : Refresh nodal factors for tidal open bdy data at kt=',kt |
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| 441 | WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
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| 442 | ENDIF |
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| 443 | ! |
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| 444 | CALL tide_init_elevation ( idx=idx_bdy(ib_bdy), td=tides(ib_bdy) ) |
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| 445 | CALL tide_init_velocities( idx=idx_bdy(ib_bdy), td=tides(ib_bdy) ) |
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| 446 | ! |
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| 447 | ENDIF |
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| 448 | zoff = -kt_tide * rdt ! time offset relative to nodal factor computation time |
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| 449 | ! |
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| 450 | ! If time splitting, save data at first barotropic iteration |
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| 451 | IF ( PRESENT(kit) ) THEN |
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| 452 | IF ( lk_first_btstp ) THEN ! Save slow varying open boundary data: |
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| 453 | dta_bdy_s(ib_bdy)%ssh(1:ilen0(1)) = dta_bdy(ib_bdy)%ssh(1:ilen0(1)) |
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| 454 | dta_bdy_s(ib_bdy)%u2d(1:ilen0(2)) = dta_bdy(ib_bdy)%u2d(1:ilen0(2)) |
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| 455 | dta_bdy_s(ib_bdy)%v2d(1:ilen0(3)) = dta_bdy(ib_bdy)%v2d(1:ilen0(3)) |
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| 456 | |
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| 457 | ELSE ! Initialize arrays from slow varying open boundary data: |
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| 458 | dta_bdy(ib_bdy)%ssh(1:ilen0(1)) = dta_bdy_s(ib_bdy)%ssh(1:ilen0(1)) |
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| 459 | dta_bdy(ib_bdy)%u2d(1:ilen0(2)) = dta_bdy_s(ib_bdy)%u2d(1:ilen0(2)) |
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| 460 | dta_bdy(ib_bdy)%v2d(1:ilen0(3)) = dta_bdy_s(ib_bdy)%v2d(1:ilen0(3)) |
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| 461 | ENDIF |
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| 462 | ENDIF |
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| 463 | ! |
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| 464 | ! Update open boundary data arrays: |
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| 465 | DO itide = 1, nb_harmo |
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| 466 | ! |
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| 467 | z_sarg = (z_arg + zoff) * omega_tide(itide) |
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| 468 | z_cost = zramp * COS( z_sarg ) |
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| 469 | z_sist = zramp * SIN( z_sarg ) |
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| 470 | ! |
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| 471 | igrd=1 ! SSH on tracer grid |
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| 472 | DO ib = 1, ilen0(igrd) |
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| 473 | dta_bdy(ib_bdy)%ssh(ib) = dta_bdy(ib_bdy)%ssh(ib) + & |
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| 474 | & ( tides(ib_bdy)%ssh(ib,itide,1)*z_cost + & |
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| 475 | & tides(ib_bdy)%ssh(ib,itide,2)*z_sist ) |
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| 476 | END DO |
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| 477 | ! |
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| 478 | igrd=2 ! U grid |
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| 479 | DO ib = 1, ilen0(igrd) |
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| 480 | dta_bdy(ib_bdy)%u2d(ib) = dta_bdy(ib_bdy)%u2d(ib) + & |
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| 481 | & ( tides(ib_bdy)%u(ib,itide,1)*z_cost + & |
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| 482 | & tides(ib_bdy)%u(ib,itide,2)*z_sist ) |
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| 483 | END DO |
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| 484 | ! |
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| 485 | igrd=3 ! V grid |
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| 486 | DO ib = 1, ilen0(igrd) |
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| 487 | dta_bdy(ib_bdy)%v2d(ib) = dta_bdy(ib_bdy)%v2d(ib) + & |
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| 488 | & ( tides(ib_bdy)%v(ib,itide,1)*z_cost + & |
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| 489 | & tides(ib_bdy)%v(ib,itide,2)*z_sist ) |
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| 490 | END DO |
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| 491 | END DO |
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| 492 | END IF |
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| 493 | END DO |
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| 494 | ! |
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| 495 | IF( nn_timing == 1 ) CALL timing_stop('bdy_dta_tides') |
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| 496 | ! |
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| 497 | END SUBROUTINE bdy_dta_tides |
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| 498 | |
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[3651] | 499 | SUBROUTINE tide_init_elevation( idx, td ) |
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[1125] | 500 | !!---------------------------------------------------------------------- |
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[3651] | 501 | !! *** ROUTINE tide_init_elevation *** |
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[1125] | 502 | !!---------------------------------------------------------------------- |
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[3651] | 503 | TYPE(OBC_INDEX), INTENT( in ) :: idx ! OBC indices |
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| 504 | TYPE(TIDES_DATA),INTENT( inout ) :: td ! tidal harmonics data |
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| 505 | !! * Local declarations |
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| 506 | INTEGER, DIMENSION(1) :: ilen0 !: length of boundary data (from OBC arrays) |
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| 507 | REAL(wp),ALLOCATABLE, DIMENSION(:) :: mod_tide, phi_tide |
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| 508 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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[1125] | 509 | |
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[3651] | 510 | igrd=1 |
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| 511 | ! SSH on tracer grid. |
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| 512 | |
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| 513 | ilen0(1) = SIZE(td%ssh0(:,1,1)) |
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| 514 | |
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| 515 | ALLOCATE(mod_tide(ilen0(igrd)),phi_tide(ilen0(igrd))) |
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| 516 | |
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| 517 | DO itide = 1, nb_harmo |
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| 518 | DO ib = 1, ilen0(igrd) |
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| 519 | mod_tide(ib)=SQRT(td%ssh0(ib,itide,1)**2.+td%ssh0(ib,itide,2)**2.) |
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| 520 | phi_tide(ib)=ATAN2(-td%ssh0(ib,itide,2),td%ssh0(ib,itide,1)) |
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[1125] | 521 | END DO |
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[3651] | 522 | DO ib = 1 , ilen0(igrd) |
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| 523 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
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| 524 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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| 525 | ENDDO |
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| 526 | DO ib = 1 , ilen0(igrd) |
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| 527 | td%ssh(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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| 528 | td%ssh(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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| 529 | ENDDO |
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| 530 | END DO |
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[911] | 531 | |
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[3651] | 532 | DEALLOCATE(mod_tide,phi_tide) |
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[911] | 533 | |
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[3651] | 534 | END SUBROUTINE tide_init_elevation |
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| 535 | |
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| 536 | SUBROUTINE tide_init_velocities( idx, td ) |
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[1125] | 537 | !!---------------------------------------------------------------------- |
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[3651] | 538 | !! *** ROUTINE tide_init_elevation *** |
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[1125] | 539 | !!---------------------------------------------------------------------- |
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[3651] | 540 | TYPE(OBC_INDEX), INTENT( in ) :: idx ! OBC indices |
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| 541 | TYPE(TIDES_DATA),INTENT( inout ) :: td ! tidal harmonics data |
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| 542 | !! * Local declarations |
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| 543 | INTEGER, DIMENSION(3) :: ilen0 !: length of boundary data (from OBC arrays) |
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| 544 | REAL(wp),ALLOCATABLE, DIMENSION(:) :: mod_tide, phi_tide |
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| 545 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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[911] | 546 | |
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[3651] | 547 | ilen0(2) = SIZE(td%u0(:,1,1)) |
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| 548 | ilen0(3) = SIZE(td%v0(:,1,1)) |
---|
[1125] | 549 | |
---|
[3651] | 550 | igrd=2 ! U grid. |
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[911] | 551 | |
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[3651] | 552 | ALLOCATE(mod_tide(ilen0(igrd)),phi_tide(ilen0(igrd))) |
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[911] | 553 | |
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[3651] | 554 | DO itide = 1, nb_harmo |
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| 555 | DO ib = 1, ilen0(igrd) |
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| 556 | mod_tide(ib)=SQRT(td%u0(ib,itide,1)**2.+td%u0(ib,itide,2)**2.) |
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| 557 | phi_tide(ib)=ATAN2(-td%u0(ib,itide,2),td%u0(ib,itide,1)) |
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| 558 | END DO |
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| 559 | DO ib = 1, ilen0(igrd) |
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| 560 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
---|
| 561 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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| 562 | ENDDO |
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| 563 | DO ib = 1, ilen0(igrd) |
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| 564 | td%u(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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| 565 | td%u(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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| 566 | ENDDO |
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| 567 | END DO |
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[911] | 568 | |
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[3651] | 569 | DEALLOCATE(mod_tide,phi_tide) |
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[911] | 570 | |
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[3651] | 571 | igrd=3 ! V grid. |
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[911] | 572 | |
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[3651] | 573 | ALLOCATE(mod_tide(ilen0(igrd)),phi_tide(ilen0(igrd))) |
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[911] | 574 | |
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[3651] | 575 | DO itide = 1, nb_harmo |
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| 576 | DO ib = 1, ilen0(igrd) |
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| 577 | mod_tide(ib)=SQRT(td%v0(ib,itide,1)**2.+td%v0(ib,itide,2)**2.) |
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| 578 | phi_tide(ib)=ATAN2(-td%v0(ib,itide,2),td%v0(ib,itide,1)) |
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| 579 | END DO |
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| 580 | DO ib = 1, ilen0(igrd) |
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| 581 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
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| 582 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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| 583 | ENDDO |
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| 584 | DO ib = 1, ilen0(igrd) |
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| 585 | td%v(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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| 586 | td%v(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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| 587 | ENDDO |
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| 588 | END DO |
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[1125] | 589 | |
---|
[3651] | 590 | DEALLOCATE(mod_tide,phi_tide) |
---|
[911] | 591 | |
---|
[3651] | 592 | END SUBROUTINE tide_init_velocities |
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[911] | 593 | #else |
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[1125] | 594 | !!---------------------------------------------------------------------- |
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| 595 | !! Dummy module NO Unstruct Open Boundary Conditions for tides |
---|
| 596 | !!---------------------------------------------------------------------- |
---|
[911] | 597 | CONTAINS |
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[3651] | 598 | SUBROUTINE bdytide_init ! Empty routine |
---|
| 599 | WRITE(*,*) 'bdytide_init: You should not have seen this print! error?' |
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| 600 | END SUBROUTINE bdytide_init |
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| 601 | SUBROUTINE bdytide_update( kt, jit ) ! Empty routine |
---|
| 602 | WRITE(*,*) 'bdytide_update: You should not have seen this print! error?', kt, jit |
---|
| 603 | END SUBROUTINE bdytide_update |
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[4292] | 604 | SUBROUTINE bdy_dta_tides( kt, kit, time_offset ) ! Empty routine |
---|
| 605 | INTEGER, INTENT( in ) :: kt ! Dummy argument empty routine |
---|
| 606 | INTEGER, INTENT( in ),OPTIONAL :: kit ! Dummy argument empty routine |
---|
| 607 | INTEGER, INTENT( in ),OPTIONAL :: time_offset ! Dummy argument empty routine |
---|
| 608 | WRITE(*,*) 'bdy_dta_tides: You should not have seen this print! error?', kt, jit |
---|
| 609 | END SUBROUTINE bdy_dta_tides |
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[911] | 610 | #endif |
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| 611 | |
---|
[1125] | 612 | !!====================================================================== |
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[911] | 613 | END MODULE bdytides |
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[4292] | 614 | |
---|