[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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[6140] | 13 | !! bdytide_init : read of namelist and initialisation of tidal harmonics data |
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| 14 | !! tide_update : calculation of tidal forcing at each timestep |
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[1125] | 15 | !!---------------------------------------------------------------------- |
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[6140] | 16 | USE oce ! ocean dynamics and tracers |
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| 17 | USE dom_oce ! ocean space and time domain |
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| 18 | USE phycst ! physical constants |
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| 19 | USE bdy_oce ! ocean open boundary conditions |
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| 20 | USE tideini ! |
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| 21 | USE daymod ! calendar |
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| 22 | ! |
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| 23 | USE in_out_manager ! I/O units |
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| 24 | USE iom ! xIO server |
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| 25 | USE fldread ! |
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| 26 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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[1125] | 27 | |
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[911] | 28 | IMPLICIT NONE |
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| 29 | PRIVATE |
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| 30 | |
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[3651] | 31 | PUBLIC bdytide_init ! routine called in bdy_init |
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| 32 | PUBLIC bdytide_update ! routine called in bdy_dta |
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[4292] | 33 | PUBLIC bdy_dta_tides ! routine called in dyn_spg_ts |
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[911] | 34 | |
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[3294] | 35 | TYPE, PUBLIC :: TIDES_DATA !: Storage for external tidal harmonics data |
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[6140] | 36 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ssh0 !: Tidal constituents : SSH0 (read in file) |
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| 37 | REAL(wp), POINTER, DIMENSION(:,:,:) :: u0, v0 !: Tidal constituents : U0, V0 (read in file) |
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| 38 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ssh !: Tidal constituents : SSH (after nodal cor.) |
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| 39 | REAL(wp), POINTER, DIMENSION(:,:,:) :: u , v !: Tidal constituents : U , V (after nodal cor.) |
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[3294] | 40 | END TYPE TIDES_DATA |
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[911] | 41 | |
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[4354] | 42 | !$AGRIF_DO_NOT_TREAT |
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[3651] | 43 | TYPE(TIDES_DATA), PUBLIC, DIMENSION(jp_bdy), TARGET :: tides !: External tidal harmonics data |
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[4354] | 44 | !$AGRIF_END_DO_NOT_TREAT |
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[5930] | 45 | TYPE(OBC_DATA) , PUBLIC, DIMENSION(jp_bdy) :: dta_bdy_s !: bdy external data (slow component) |
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[911] | 46 | |
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[1125] | 47 | !!---------------------------------------------------------------------- |
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[9598] | 48 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[6140] | 49 | !! $Id$ |
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[10068] | 50 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[1125] | 51 | !!---------------------------------------------------------------------- |
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[911] | 52 | CONTAINS |
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| 53 | |
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[3651] | 54 | SUBROUTINE bdytide_init |
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[1125] | 55 | !!---------------------------------------------------------------------- |
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[3651] | 56 | !! *** SUBROUTINE bdytide_init *** |
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[1125] | 57 | !! |
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[3294] | 58 | !! ** Purpose : - Read in namelist for tides and initialise external |
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| 59 | !! tidal harmonics data |
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[911] | 60 | !! |
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| 61 | !!---------------------------------------------------------------------- |
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[3294] | 62 | !! namelist variables |
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| 63 | !!------------------- |
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[3651] | 64 | CHARACTER(len=80) :: filtide !: Filename root for tidal input files |
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| 65 | LOGICAL :: ln_bdytide_2ddta !: If true, read 2d harmonic data |
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| 66 | LOGICAL :: ln_bdytide_conj !: If true, assume complex conjugate tidal data |
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[1125] | 67 | !! |
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[3651] | 68 | INTEGER :: ib_bdy, itide, ib !: dummy loop indices |
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| 69 | INTEGER :: ii, ij !: dummy loop indices |
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[3294] | 70 | INTEGER :: inum, igrd |
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[3651] | 71 | INTEGER, DIMENSION(3) :: ilen0 !: length of boundary data (from OBC arrays) |
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| 72 | INTEGER, POINTER, DIMENSION(:) :: nblen, nblenrim ! short cuts |
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[4147] | 73 | INTEGER :: ios ! Local integer output status for namelist read |
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[3651] | 74 | CHARACTER(len=80) :: clfile !: full file name for tidal input file |
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| 75 | REAL(wp),ALLOCATABLE, DIMENSION(:,:,:) :: dta_read !: work space to read in tidal harmonics data |
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[9125] | 76 | REAL(wp),ALLOCATABLE, DIMENSION(:,:) :: ztr, zti !: " " " " " " " " |
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[3294] | 77 | !! |
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[3651] | 78 | TYPE(TIDES_DATA), POINTER :: td !: local short cut |
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[5132] | 79 | TYPE(MAP_POINTER), DIMENSION(jpbgrd) :: ibmap_ptr !: array of pointers to nbmap |
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[3294] | 80 | !! |
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[3651] | 81 | NAMELIST/nambdy_tide/filtide, ln_bdytide_2ddta, ln_bdytide_conj |
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[1125] | 82 | !!---------------------------------------------------------------------- |
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[6140] | 83 | ! |
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[3651] | 84 | IF (nb_bdy>0) THEN |
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| 85 | IF(lwp) WRITE(numout,*) |
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| 86 | IF(lwp) WRITE(numout,*) 'bdytide_init : initialization of tidal harmonic forcing at open boundaries' |
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| 87 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~' |
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| 88 | ENDIF |
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[911] | 89 | |
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[4147] | 90 | REWIND(numnam_cfg) |
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[3651] | 91 | |
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[3294] | 92 | DO ib_bdy = 1, nb_bdy |
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[7646] | 93 | IF( nn_dyn2d_dta(ib_bdy) >= 2 ) THEN |
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| 94 | ! |
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[3294] | 95 | td => tides(ib_bdy) |
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[3651] | 96 | nblen => idx_bdy(ib_bdy)%nblen |
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| 97 | nblenrim => idx_bdy(ib_bdy)%nblenrim |
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[911] | 98 | |
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[3294] | 99 | ! Namelist nambdy_tide : tidal harmonic forcing at open boundaries |
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| 100 | filtide(:) = '' |
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[911] | 101 | |
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[4147] | 102 | ! Don't REWIND here - may need to read more than one of these namelists. |
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| 103 | READ ( numnam_ref, nambdy_tide, IOSTAT = ios, ERR = 901) |
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[9168] | 104 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nambdy_tide in reference namelist', lwp ) |
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[4147] | 105 | READ ( numnam_cfg, nambdy_tide, IOSTAT = ios, ERR = 902 ) |
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[9168] | 106 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'nambdy_tide in configuration namelist', lwp ) |
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[4624] | 107 | IF(lwm) WRITE ( numond, nambdy_tide ) |
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[3651] | 108 | ! ! Parameter control and print |
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| 109 | IF(lwp) WRITE(numout,*) ' ' |
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| 110 | IF(lwp) WRITE(numout,*) ' Namelist nambdy_tide : tidal harmonic forcing at open boundaries' |
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| 111 | IF(lwp) WRITE(numout,*) ' read tidal data in 2d files: ', ln_bdytide_2ddta |
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| 112 | IF(lwp) WRITE(numout,*) ' assume complex conjugate : ', ln_bdytide_conj |
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| 113 | IF(lwp) WRITE(numout,*) ' Number of tidal components to read: ', nb_harmo |
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| 114 | IF(lwp) THEN |
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[5084] | 115 | WRITE(numout,*) ' Tidal components: ' |
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[3651] | 116 | DO itide = 1, nb_harmo |
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[5084] | 117 | WRITE(numout,*) ' ', Wave(ntide(itide))%cname_tide |
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[3651] | 118 | END DO |
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| 119 | ENDIF |
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| 120 | IF(lwp) WRITE(numout,*) ' ' |
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[1125] | 121 | |
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[3651] | 122 | ! Allocate space for tidal harmonics data - get size from OBC data arrays |
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| 123 | ! ----------------------------------------------------------------------- |
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[911] | 124 | |
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[3651] | 125 | ! JC: If FRS scheme is used, we assume that tidal is needed over the whole |
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| 126 | ! relaxation area |
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[7646] | 127 | IF( cn_dyn2d(ib_bdy) == 'frs' ) THEN ; ilen0(:) = nblen (:) |
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| 128 | ELSE ; ilen0(:) = nblenrim(:) |
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[3294] | 129 | ENDIF |
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[911] | 130 | |
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[3651] | 131 | ALLOCATE( td%ssh0( ilen0(1), nb_harmo, 2 ) ) |
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| 132 | ALLOCATE( td%ssh ( ilen0(1), nb_harmo, 2 ) ) |
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[911] | 133 | |
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[3651] | 134 | ALLOCATE( td%u0( ilen0(2), nb_harmo, 2 ) ) |
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| 135 | ALLOCATE( td%u ( ilen0(2), nb_harmo, 2 ) ) |
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[911] | 136 | |
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[3651] | 137 | ALLOCATE( td%v0( ilen0(3), nb_harmo, 2 ) ) |
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| 138 | ALLOCATE( td%v ( ilen0(3), nb_harmo, 2 ) ) |
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[911] | 139 | |
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[4292] | 140 | td%ssh0(:,:,:) = 0._wp |
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| 141 | td%ssh (:,:,:) = 0._wp |
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| 142 | td%u0 (:,:,:) = 0._wp |
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| 143 | td%u (:,:,:) = 0._wp |
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| 144 | td%v0 (:,:,:) = 0._wp |
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| 145 | td%v (:,:,:) = 0._wp |
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[3294] | 146 | |
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[7646] | 147 | IF( ln_bdytide_2ddta ) THEN |
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[3651] | 148 | ! It is assumed that each data file contains all complex harmonic amplitudes |
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[7646] | 149 | ! given on the global domain (ie global, jpiglo x jpjglo) |
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[3651] | 150 | ! |
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[9125] | 151 | ALLOCATE( zti(jpi,jpj), ztr(jpi,jpj) ) |
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[3651] | 152 | ! |
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| 153 | ! SSH fields |
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| 154 | clfile = TRIM(filtide)//'_grid_T.nc' |
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[7646] | 155 | CALL iom_open( clfile , inum ) |
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[3651] | 156 | igrd = 1 ! Everything is at T-points here |
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| 157 | DO itide = 1, nb_harmo |
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[7646] | 158 | CALL iom_get( inum, jpdom_autoglo, TRIM(Wave(ntide(itide))%cname_tide)//'_z1', ztr(:,:) ) |
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| 159 | CALL iom_get( inum, jpdom_autoglo, TRIM(Wave(ntide(itide))%cname_tide)//'_z2', zti(:,:) ) |
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[3651] | 160 | DO ib = 1, ilen0(igrd) |
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| 161 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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| 162 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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| 163 | td%ssh0(ib,itide,1) = ztr(ii,ij) |
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| 164 | td%ssh0(ib,itide,2) = zti(ii,ij) |
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| 165 | END DO |
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| 166 | END DO |
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[3294] | 167 | CALL iom_close( inum ) |
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[3651] | 168 | ! |
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| 169 | ! U fields |
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| 170 | clfile = TRIM(filtide)//'_grid_U.nc' |
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[7646] | 171 | CALL iom_open( clfile , inum ) |
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[3651] | 172 | igrd = 2 ! Everything is at U-points here |
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| 173 | DO itide = 1, nb_harmo |
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[7646] | 174 | CALL iom_get ( inum, jpdom_autoglo, TRIM(Wave(ntide(itide))%cname_tide)//'_u1', ztr(:,:) ) |
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| 175 | CALL iom_get ( inum, jpdom_autoglo, TRIM(Wave(ntide(itide))%cname_tide)//'_u2', zti(:,:) ) |
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[3651] | 176 | DO ib = 1, ilen0(igrd) |
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| 177 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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| 178 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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| 179 | td%u0(ib,itide,1) = ztr(ii,ij) |
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| 180 | td%u0(ib,itide,2) = zti(ii,ij) |
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| 181 | END DO |
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| 182 | END DO |
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[3294] | 183 | CALL iom_close( inum ) |
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[3651] | 184 | ! |
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| 185 | ! V fields |
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| 186 | clfile = TRIM(filtide)//'_grid_V.nc' |
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[7646] | 187 | CALL iom_open( clfile , inum ) |
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[3651] | 188 | igrd = 3 ! Everything is at V-points here |
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| 189 | DO itide = 1, nb_harmo |
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[7646] | 190 | CALL iom_get ( inum, jpdom_autoglo, TRIM(Wave(ntide(itide))%cname_tide)//'_v1', ztr(:,:) ) |
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| 191 | CALL iom_get ( inum, jpdom_autoglo, TRIM(Wave(ntide(itide))%cname_tide)//'_v2', zti(:,:) ) |
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[3651] | 192 | DO ib = 1, ilen0(igrd) |
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| 193 | ii = idx_bdy(ib_bdy)%nbi(ib,igrd) |
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| 194 | ij = idx_bdy(ib_bdy)%nbj(ib,igrd) |
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| 195 | td%v0(ib,itide,1) = ztr(ii,ij) |
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| 196 | td%v0(ib,itide,2) = zti(ii,ij) |
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| 197 | END DO |
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| 198 | END DO |
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[3294] | 199 | CALL iom_close( inum ) |
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| 200 | ! |
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[9125] | 201 | DEALLOCATE( ztr, zti ) |
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[3651] | 202 | ! |
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| 203 | ELSE |
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| 204 | ! |
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| 205 | ! Read tidal data only on bdy segments |
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| 206 | ! |
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| 207 | ALLOCATE( dta_read( MAXVAL(ilen0(1:3)), 1, 1 ) ) |
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[5132] | 208 | ! |
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| 209 | ! Set map structure |
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[7646] | 210 | ibmap_ptr(1)%ptr => idx_bdy(ib_bdy)%nbmap(:,1) ; ibmap_ptr(1)%ll_unstruc = ln_coords_file(ib_bdy) |
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| 211 | ibmap_ptr(2)%ptr => idx_bdy(ib_bdy)%nbmap(:,2) ; ibmap_ptr(2)%ll_unstruc = ln_coords_file(ib_bdy) |
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| 212 | ibmap_ptr(3)%ptr => idx_bdy(ib_bdy)%nbmap(:,3) ; ibmap_ptr(3)%ll_unstruc = ln_coords_file(ib_bdy) |
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[3294] | 213 | |
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[3651] | 214 | ! Open files and read in tidal forcing data |
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| 215 | ! ----------------------------------------- |
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[3294] | 216 | |
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[3651] | 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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[5132] | 221 | CALL fld_map( inum, 'z1' , dta_read(1:ilen0(1),1:1,1:1) , 1, ibmap_ptr(1) ) |
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[3651] | 222 | td%ssh0(:,itide,1) = dta_read(1:ilen0(1),1,1) |
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[5132] | 223 | CALL fld_map( inum, 'z2' , dta_read(1:ilen0(1),1:1,1:1) , 1, ibmap_ptr(1) ) |
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[3651] | 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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[5132] | 229 | CALL fld_map( inum, 'u1' , dta_read(1:ilen0(2),1:1,1:1) , 1, ibmap_ptr(2) ) |
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[3651] | 230 | td%u0(:,itide,1) = dta_read(1:ilen0(2),1,1) |
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[5132] | 231 | CALL fld_map( inum, 'u2' , dta_read(1:ilen0(2),1:1,1:1) , 1, ibmap_ptr(2) ) |
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[3651] | 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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[5132] | 237 | CALL fld_map( inum, 'v1' , dta_read(1:ilen0(3),1:1,1:1) , 1, ibmap_ptr(3) ) |
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[3651] | 238 | td%v0(:,itide,1) = dta_read(1:ilen0(3),1,1) |
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[5132] | 239 | CALL fld_map( inum, 'v2' , dta_read(1:ilen0(3),1:1,1:1) , 1, ibmap_ptr(3) ) |
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[3651] | 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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[3294] | 242 | ! |
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[3651] | 243 | END DO ! end loop on tidal components |
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[3294] | 244 | ! |
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[3651] | 245 | DEALLOCATE( dta_read ) |
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[7646] | 246 | ! |
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[3651] | 247 | ENDIF ! ln_bdytide_2ddta=.true. |
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[1125] | 248 | ! |
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[6140] | 249 | IF( ln_bdytide_conj ) THEN ! assume complex conjugate in data files |
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[3651] | 250 | td%ssh0(:,:,2) = - td%ssh0(:,:,2) |
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| 251 | td%u0 (:,:,2) = - td%u0 (:,:,2) |
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| 252 | td%v0 (:,:,2) = - td%v0 (:,:,2) |
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| 253 | ENDIF |
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| 254 | ! |
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[5930] | 255 | ! Allocate slow varying data in the case of time splitting: |
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| 256 | ! Do it anyway because at this stage knowledge of free surface scheme is unknown |
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| 257 | ALLOCATE( dta_bdy_s(ib_bdy)%ssh ( ilen0(1) ) ) |
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| 258 | ALLOCATE( dta_bdy_s(ib_bdy)%u2d ( ilen0(2) ) ) |
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| 259 | ALLOCATE( dta_bdy_s(ib_bdy)%v2d ( ilen0(3) ) ) |
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[6140] | 260 | dta_bdy_s(ib_bdy)%ssh(:) = 0._wp |
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| 261 | dta_bdy_s(ib_bdy)%u2d(:) = 0._wp |
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| 262 | dta_bdy_s(ib_bdy)%v2d(:) = 0._wp |
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[4292] | 263 | ! |
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[7646] | 264 | ENDIF ! nn_dyn2d_dta(ib_bdy) >= 2 |
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[1125] | 265 | ! |
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[3294] | 266 | END DO ! loop on ib_bdy |
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[6140] | 267 | ! |
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| 268 | END SUBROUTINE bdytide_init |
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[911] | 269 | |
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[1125] | 270 | |
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[6140] | 271 | SUBROUTINE bdytide_update( kt, idx, dta, td, jit, time_offset ) |
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[1125] | 272 | !!---------------------------------------------------------------------- |
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[3651] | 273 | !! *** SUBROUTINE bdytide_update *** |
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[1125] | 274 | !! |
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[3294] | 275 | !! ** Purpose : - Add tidal forcing to ssh, u2d and v2d OBC data arrays. |
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[911] | 276 | !! |
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[1125] | 277 | !!---------------------------------------------------------------------- |
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[6140] | 278 | INTEGER , INTENT(in ) :: kt ! Main timestep counter |
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| 279 | TYPE(OBC_INDEX) , INTENT(in ) :: idx ! OBC indices |
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| 280 | TYPE(OBC_DATA) , INTENT(inout) :: dta ! OBC external data |
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| 281 | TYPE(TIDES_DATA) , INTENT(inout) :: td ! tidal harmonics data |
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| 282 | INTEGER, OPTIONAL, INTENT(in ) :: jit ! Barotropic timestep counter (for timesplitting option) |
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| 283 | INTEGER, OPTIONAL, INTENT(in ) :: time_offset ! time offset in units of timesteps. NB. if jit |
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| 284 | ! ! is present then units = subcycle timesteps. |
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| 285 | ! ! time_offset = 0 => get data at "now" time level |
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| 286 | ! ! time_offset = -1 => get data at "before" time level |
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| 287 | ! ! time_offset = +1 => get data at "after" time level |
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| 288 | ! ! etc. |
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| 289 | ! |
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| 290 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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| 291 | INTEGER :: time_add ! time offset in units of timesteps |
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| 292 | INTEGER, DIMENSION(3) :: ilen0 ! length of boundary data (from OBC arrays) |
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| 293 | REAL(wp) :: z_arg, z_sarg, zflag, zramp ! local scalars |
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[3651] | 294 | REAL(wp), DIMENSION(jpmax_harmo) :: z_sist, z_cost |
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[1125] | 295 | !!---------------------------------------------------------------------- |
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[6140] | 296 | ! |
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[3651] | 297 | ilen0(1) = SIZE(td%ssh(:,1,1)) |
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| 298 | ilen0(2) = SIZE(td%u(:,1,1)) |
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| 299 | ilen0(3) = SIZE(td%v(:,1,1)) |
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| 300 | |
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| 301 | zflag=1 |
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| 302 | IF ( PRESENT(jit) ) THEN |
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| 303 | IF ( jit /= 1 ) zflag=0 |
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| 304 | ENDIF |
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| 305 | |
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[6140] | 306 | IF ( (nsec_day == NINT(0.5_wp * rdt) .OR. kt==nit000) .AND. zflag==1 ) THEN |
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[3651] | 307 | ! |
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[6140] | 308 | kt_tide = kt - (nsec_day - 0.5_wp * rdt)/rdt |
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[3651] | 309 | ! |
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| 310 | IF(lwp) THEN |
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| 311 | WRITE(numout,*) |
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| 312 | WRITE(numout,*) 'bdytide_update : (re)Initialization of the tidal bdy forcing at kt=',kt |
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| 313 | WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
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| 314 | ENDIF |
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| 315 | ! |
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| 316 | CALL tide_init_elevation ( idx, td ) |
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| 317 | CALL tide_init_velocities( idx, td ) |
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| 318 | ! |
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| 319 | ENDIF |
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| 320 | |
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[3294] | 321 | time_add = 0 |
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| 322 | IF( PRESENT(time_offset) ) THEN |
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| 323 | time_add = time_offset |
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| 324 | ENDIF |
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| 325 | |
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| 326 | IF( PRESENT(jit) ) THEN |
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[4292] | 327 | z_arg = ((kt-kt_tide) * rdt + (jit+0.5_wp*(time_add-1)) * rdt / REAL(nn_baro,wp) ) |
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[3294] | 328 | ELSE |
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[3651] | 329 | z_arg = ((kt-kt_tide)+time_add) * rdt |
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[1125] | 330 | ENDIF |
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[911] | 331 | |
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[3651] | 332 | ! Linear ramp on tidal component at open boundaries |
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[4292] | 333 | zramp = 1._wp |
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| 334 | IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg + (kt_tide-nit000)*rdt)/(rdttideramp*rday),0._wp),1._wp) |
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[3651] | 335 | |
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| 336 | DO itide = 1, nb_harmo |
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| 337 | z_sarg = z_arg * omega_tide(itide) |
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[1125] | 338 | z_cost(itide) = COS( z_sarg ) |
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| 339 | z_sist(itide) = SIN( z_sarg ) |
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| 340 | END DO |
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[911] | 341 | |
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[3651] | 342 | DO itide = 1, nb_harmo |
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| 343 | igrd=1 ! SSH on tracer grid |
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| 344 | DO ib = 1, ilen0(igrd) |
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| 345 | 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] | 346 | END DO |
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[3294] | 347 | igrd=2 ! U grid |
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[3651] | 348 | DO ib = 1, ilen0(igrd) |
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| 349 | 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] | 350 | END DO |
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[3294] | 351 | igrd=3 ! V grid |
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[3651] | 352 | DO ib = 1, ilen0(igrd) |
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| 353 | 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] | 354 | END DO |
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| 355 | END DO |
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| 356 | ! |
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[3651] | 357 | END SUBROUTINE bdytide_update |
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[911] | 358 | |
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[7646] | 359 | |
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[4292] | 360 | SUBROUTINE bdy_dta_tides( kt, kit, time_offset ) |
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| 361 | !!---------------------------------------------------------------------- |
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| 362 | !! *** SUBROUTINE bdy_dta_tides *** |
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| 363 | !! |
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| 364 | !! ** Purpose : - Add tidal forcing to ssh, u2d and v2d OBC data arrays. |
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| 365 | !! |
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| 366 | !!---------------------------------------------------------------------- |
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[6140] | 367 | INTEGER, INTENT(in) :: kt ! Main timestep counter |
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| 368 | INTEGER, OPTIONAL, INTENT(in) :: kit ! Barotropic timestep counter (for timesplitting option) |
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| 369 | INTEGER, OPTIONAL, INTENT(in) :: time_offset ! time offset in units of timesteps. NB. if kit |
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| 370 | ! ! is present then units = subcycle timesteps. |
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| 371 | ! ! time_offset = 0 => get data at "now" time level |
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| 372 | ! ! time_offset = -1 => get data at "before" time level |
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| 373 | ! ! time_offset = +1 => get data at "after" time level |
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| 374 | ! ! etc. |
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| 375 | ! |
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| 376 | LOGICAL :: lk_first_btstp ! =.TRUE. if time splitting and first barotropic step |
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| 377 | INTEGER :: itide, ib_bdy, ib, igrd ! loop indices |
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| 378 | INTEGER :: time_add ! time offset in units of timesteps |
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| 379 | INTEGER, DIMENSION(jpbgrd) :: ilen0 |
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| 380 | INTEGER, DIMENSION(1:jpbgrd) :: nblen, nblenrim ! short cuts |
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| 381 | REAL(wp) :: z_arg, z_sarg, zramp, zoff, z_cost, z_sist |
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[4292] | 382 | !!---------------------------------------------------------------------- |
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[6140] | 383 | ! |
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[4292] | 384 | lk_first_btstp=.TRUE. |
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| 385 | IF ( PRESENT(kit).AND.( kit /= 1 ) ) THEN ; lk_first_btstp=.FALSE. ; ENDIF |
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| 386 | |
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| 387 | time_add = 0 |
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| 388 | IF( PRESENT(time_offset) ) THEN |
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| 389 | time_add = time_offset |
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| 390 | ENDIF |
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| 391 | |
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| 392 | ! Absolute time from model initialization: |
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| 393 | IF( PRESENT(kit) ) THEN |
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[5913] | 394 | z_arg = ( kt + (kit+time_add-1) / REAL(nn_baro,wp) ) * rdt |
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[4292] | 395 | ELSE |
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| 396 | z_arg = ( kt + time_add ) * rdt |
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| 397 | ENDIF |
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| 398 | |
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| 399 | ! Linear ramp on tidal component at open boundaries |
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| 400 | zramp = 1. |
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| 401 | IF (ln_tide_ramp) zramp = MIN(MAX( (z_arg - nit000*rdt)/(rdttideramp*rday),0.),1.) |
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| 402 | |
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| 403 | DO ib_bdy = 1,nb_bdy |
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[7646] | 404 | ! |
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| 405 | IF( nn_dyn2d_dta(ib_bdy) >= 2 ) THEN |
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| 406 | ! |
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[4292] | 407 | nblen(1:jpbgrd) = idx_bdy(ib_bdy)%nblen(1:jpbgrd) |
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| 408 | nblenrim(1:jpbgrd) = idx_bdy(ib_bdy)%nblenrim(1:jpbgrd) |
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[7646] | 409 | ! |
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| 410 | IF( cn_dyn2d(ib_bdy) == 'frs' ) THEN ; ilen0(:) = nblen (:) |
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| 411 | ELSE ; ilen0(:) = nblenrim(:) |
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[4292] | 412 | ENDIF |
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[7646] | 413 | ! |
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[4292] | 414 | ! We refresh nodal factors every day below |
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| 415 | ! This should be done somewhere else |
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[6140] | 416 | IF ( ( nsec_day == NINT(0.5_wp * rdt) .OR. kt==nit000 ) .AND. lk_first_btstp ) THEN |
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[4292] | 417 | ! |
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[6140] | 418 | kt_tide = kt - (nsec_day - 0.5_wp * rdt)/rdt |
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[4292] | 419 | ! |
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| 420 | IF(lwp) THEN |
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| 421 | WRITE(numout,*) |
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| 422 | WRITE(numout,*) 'bdy_tide_dta : Refresh nodal factors for tidal open bdy data at kt=',kt |
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| 423 | WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
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| 424 | ENDIF |
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| 425 | ! |
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| 426 | CALL tide_init_elevation ( idx=idx_bdy(ib_bdy), td=tides(ib_bdy) ) |
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| 427 | CALL tide_init_velocities( idx=idx_bdy(ib_bdy), td=tides(ib_bdy) ) |
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| 428 | ! |
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| 429 | ENDIF |
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| 430 | zoff = -kt_tide * rdt ! time offset relative to nodal factor computation time |
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| 431 | ! |
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[5930] | 432 | ! If time splitting, initialize arrays from slow varying open boundary data: |
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| 433 | IF ( PRESENT(kit) ) THEN |
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| 434 | IF ( dta_bdy(ib_bdy)%ll_ssh ) dta_bdy(ib_bdy)%ssh(1:ilen0(1)) = dta_bdy_s(ib_bdy)%ssh(1:ilen0(1)) |
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| 435 | IF ( dta_bdy(ib_bdy)%ll_u2d ) dta_bdy(ib_bdy)%u2d(1:ilen0(2)) = dta_bdy_s(ib_bdy)%u2d(1:ilen0(2)) |
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| 436 | IF ( dta_bdy(ib_bdy)%ll_v2d ) dta_bdy(ib_bdy)%v2d(1:ilen0(3)) = dta_bdy_s(ib_bdy)%v2d(1:ilen0(3)) |
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[4292] | 437 | ENDIF |
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| 438 | ! |
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| 439 | ! Update open boundary data arrays: |
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| 440 | DO itide = 1, nb_harmo |
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| 441 | ! |
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| 442 | z_sarg = (z_arg + zoff) * omega_tide(itide) |
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| 443 | z_cost = zramp * COS( z_sarg ) |
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| 444 | z_sist = zramp * SIN( z_sarg ) |
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| 445 | ! |
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[4758] | 446 | IF ( dta_bdy(ib_bdy)%ll_ssh ) THEN |
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| 447 | igrd=1 ! SSH on tracer grid |
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| 448 | DO ib = 1, ilen0(igrd) |
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| 449 | dta_bdy(ib_bdy)%ssh(ib) = dta_bdy(ib_bdy)%ssh(ib) + & |
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| 450 | & ( tides(ib_bdy)%ssh(ib,itide,1)*z_cost + & |
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| 451 | & tides(ib_bdy)%ssh(ib,itide,2)*z_sist ) |
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| 452 | END DO |
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| 453 | ENDIF |
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[4292] | 454 | ! |
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[4758] | 455 | IF ( dta_bdy(ib_bdy)%ll_u2d ) THEN |
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| 456 | igrd=2 ! U grid |
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| 457 | DO ib = 1, ilen0(igrd) |
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| 458 | dta_bdy(ib_bdy)%u2d(ib) = dta_bdy(ib_bdy)%u2d(ib) + & |
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| 459 | & ( tides(ib_bdy)%u(ib,itide,1)*z_cost + & |
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| 460 | & tides(ib_bdy)%u(ib,itide,2)*z_sist ) |
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| 461 | END DO |
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| 462 | ENDIF |
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[4292] | 463 | ! |
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[4758] | 464 | IF ( dta_bdy(ib_bdy)%ll_v2d ) THEN |
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| 465 | igrd=3 ! V grid |
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| 466 | DO ib = 1, ilen0(igrd) |
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| 467 | dta_bdy(ib_bdy)%v2d(ib) = dta_bdy(ib_bdy)%v2d(ib) + & |
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| 468 | & ( tides(ib_bdy)%v(ib,itide,1)*z_cost + & |
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| 469 | & tides(ib_bdy)%v(ib,itide,2)*z_sist ) |
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| 470 | END DO |
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| 471 | ENDIF |
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| 472 | END DO |
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[4292] | 473 | END IF |
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| 474 | END DO |
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| 475 | ! |
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| 476 | END SUBROUTINE bdy_dta_tides |
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| 477 | |
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[6140] | 478 | |
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[3651] | 479 | SUBROUTINE tide_init_elevation( idx, td ) |
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[1125] | 480 | !!---------------------------------------------------------------------- |
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[3651] | 481 | !! *** ROUTINE tide_init_elevation *** |
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[1125] | 482 | !!---------------------------------------------------------------------- |
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[6140] | 483 | TYPE(OBC_INDEX) , INTENT(in ) :: idx ! OBC indices |
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| 484 | TYPE(TIDES_DATA), INTENT(inout) :: td ! tidal harmonics data |
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| 485 | ! |
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| 486 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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| 487 | INTEGER, DIMENSION(1) :: ilen0 ! length of boundary data (from OBC arrays) |
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[3651] | 488 | REAL(wp),ALLOCATABLE, DIMENSION(:) :: mod_tide, phi_tide |
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[6140] | 489 | !!---------------------------------------------------------------------- |
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| 490 | ! |
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[3651] | 491 | igrd=1 |
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| 492 | ! SSH on tracer grid. |
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| 493 | ilen0(1) = SIZE(td%ssh0(:,1,1)) |
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[6140] | 494 | ! |
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| 495 | ALLOCATE( mod_tide(ilen0(igrd)), phi_tide(ilen0(igrd)) ) |
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| 496 | ! |
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[3651] | 497 | DO itide = 1, nb_harmo |
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| 498 | DO ib = 1, ilen0(igrd) |
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| 499 | mod_tide(ib)=SQRT(td%ssh0(ib,itide,1)**2.+td%ssh0(ib,itide,2)**2.) |
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| 500 | phi_tide(ib)=ATAN2(-td%ssh0(ib,itide,2),td%ssh0(ib,itide,1)) |
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[1125] | 501 | END DO |
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[3651] | 502 | DO ib = 1 , ilen0(igrd) |
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| 503 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
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| 504 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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| 505 | ENDDO |
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| 506 | DO ib = 1 , ilen0(igrd) |
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| 507 | td%ssh(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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| 508 | td%ssh(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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| 509 | ENDDO |
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| 510 | END DO |
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[6140] | 511 | ! |
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| 512 | DEALLOCATE( mod_tide, phi_tide ) |
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| 513 | ! |
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| 514 | END SUBROUTINE tide_init_elevation |
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[911] | 515 | |
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| 516 | |
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[3651] | 517 | SUBROUTINE tide_init_velocities( idx, td ) |
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[1125] | 518 | !!---------------------------------------------------------------------- |
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[3651] | 519 | !! *** ROUTINE tide_init_elevation *** |
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[1125] | 520 | !!---------------------------------------------------------------------- |
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[6140] | 521 | TYPE(OBC_INDEX) , INTENT(in ) :: idx ! OBC indices |
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| 522 | TYPE(TIDES_DATA), INTENT(inout) :: td ! tidal harmonics data |
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| 523 | ! |
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| 524 | INTEGER :: itide, igrd, ib ! dummy loop indices |
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| 525 | INTEGER, DIMENSION(3) :: ilen0 ! length of boundary data (from OBC arrays) |
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[3651] | 526 | REAL(wp),ALLOCATABLE, DIMENSION(:) :: mod_tide, phi_tide |
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[6140] | 527 | !!---------------------------------------------------------------------- |
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| 528 | ! |
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[3651] | 529 | ilen0(2) = SIZE(td%u0(:,1,1)) |
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| 530 | ilen0(3) = SIZE(td%v0(:,1,1)) |
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[6140] | 531 | ! |
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[3651] | 532 | igrd=2 ! U grid. |
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[6140] | 533 | ! |
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| 534 | ALLOCATE( mod_tide(ilen0(igrd)) , phi_tide(ilen0(igrd)) ) |
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| 535 | ! |
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[3651] | 536 | DO itide = 1, nb_harmo |
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| 537 | DO ib = 1, ilen0(igrd) |
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| 538 | mod_tide(ib)=SQRT(td%u0(ib,itide,1)**2.+td%u0(ib,itide,2)**2.) |
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| 539 | phi_tide(ib)=ATAN2(-td%u0(ib,itide,2),td%u0(ib,itide,1)) |
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| 540 | END DO |
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| 541 | DO ib = 1, ilen0(igrd) |
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| 542 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
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| 543 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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| 544 | ENDDO |
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| 545 | DO ib = 1, ilen0(igrd) |
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| 546 | td%u(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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| 547 | td%u(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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| 548 | ENDDO |
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| 549 | END DO |
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[6140] | 550 | ! |
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| 551 | DEALLOCATE( mod_tide , phi_tide ) |
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| 552 | ! |
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[3651] | 553 | igrd=3 ! V grid. |
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[6140] | 554 | ! |
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| 555 | ALLOCATE( mod_tide(ilen0(igrd)) , phi_tide(ilen0(igrd)) ) |
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[911] | 556 | |
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[3651] | 557 | DO itide = 1, nb_harmo |
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| 558 | DO ib = 1, ilen0(igrd) |
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| 559 | mod_tide(ib)=SQRT(td%v0(ib,itide,1)**2.+td%v0(ib,itide,2)**2.) |
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| 560 | phi_tide(ib)=ATAN2(-td%v0(ib,itide,2),td%v0(ib,itide,1)) |
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| 561 | END DO |
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| 562 | DO ib = 1, ilen0(igrd) |
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| 563 | mod_tide(ib)=mod_tide(ib)*ftide(itide) |
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| 564 | phi_tide(ib)=phi_tide(ib)+v0tide(itide)+utide(itide) |
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| 565 | ENDDO |
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| 566 | DO ib = 1, ilen0(igrd) |
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| 567 | td%v(ib,itide,1)= mod_tide(ib)*COS(phi_tide(ib)) |
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| 568 | td%v(ib,itide,2)=-mod_tide(ib)*SIN(phi_tide(ib)) |
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| 569 | ENDDO |
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| 570 | END DO |
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[6140] | 571 | ! |
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| 572 | DEALLOCATE( mod_tide, phi_tide ) |
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| 573 | ! |
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| 574 | END SUBROUTINE tide_init_velocities |
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[1125] | 575 | |
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| 576 | !!====================================================================== |
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[911] | 577 | END MODULE bdytides |
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[4292] | 578 | |
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