[2952] | 1 | MODULE sbctide |
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[4292] | 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbctide *** |
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| 4 | !! Initialization of tidal forcing |
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| 5 | !!====================================================================== |
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| 6 | !! History : 9.0 ! 2007 (O. Le Galloudec) Original code |
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| 7 | !!---------------------------------------------------------------------- |
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[6140] | 8 | USE oce ! ocean dynamics and tracers variables |
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| 9 | USE dom_oce ! ocean space and time domain |
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| 10 | USE phycst ! physical constant |
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| 11 | USE daymod ! calandar |
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| 12 | USE tideini ! |
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[4292] | 13 | ! |
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[6140] | 14 | USE in_out_manager ! I/O units |
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| 15 | USE iom ! xIOs server |
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| 16 | USE ioipsl ! NetCDF IPSL library |
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| 17 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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[2952] | 18 | |
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[4292] | 19 | IMPLICIT NONE |
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| 20 | PUBLIC |
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[2952] | 21 | |
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[4292] | 22 | REAL(wp), PUBLIC, ALLOCATABLE, DIMENSION(:,:) :: pot_astro ! |
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[3651] | 23 | |
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[4292] | 24 | !!---------------------------------------------------------------------- |
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[7646] | 25 | !! tidal potential |
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[4292] | 26 | !!---------------------------------------------------------------------- |
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| 27 | !! sbc_tide : |
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| 28 | !! tide_init_potential : |
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| 29 | !!---------------------------------------------------------------------- |
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[2952] | 30 | |
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[4292] | 31 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: amp_pot, phi_pot |
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[9023] | 32 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: amp_load, phi_load |
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| 33 | |
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[4292] | 34 | !!---------------------------------------------------------------------- |
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[9598] | 35 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[5215] | 36 | !! $Id$ |
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[10068] | 37 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[4292] | 38 | !!---------------------------------------------------------------------- |
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[2952] | 39 | CONTAINS |
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| 40 | |
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[4292] | 41 | SUBROUTINE sbc_tide( kt ) |
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| 42 | !!---------------------------------------------------------------------- |
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| 43 | !! *** ROUTINE sbc_tide *** |
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| 44 | !!---------------------------------------------------------------------- |
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| 45 | INTEGER, INTENT( in ) :: kt ! ocean time-step |
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| 46 | INTEGER :: jk ! dummy loop index |
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[6140] | 47 | INTEGER :: nsec_day_orig ! Temporary variable |
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[4292] | 48 | !!---------------------------------------------------------------------- |
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[6140] | 49 | |
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| 50 | IF( nsec_day == NINT(0.5_wp * rdt) .OR. kt == nit000 ) THEN ! start a new day |
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[4292] | 51 | ! |
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[9023] | 52 | IF( kt == nit000 )THEN |
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[4292] | 53 | ALLOCATE( amp_pot(jpi,jpj,nb_harmo), & |
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| 54 | & phi_pot(jpi,jpj,nb_harmo), pot_astro(jpi,jpj) ) |
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[9023] | 55 | IF( ln_read_load )THEN |
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| 56 | ALLOCATE( amp_load(jpi,jpj,nb_harmo), phi_load(jpi,jpj,nb_harmo) ) |
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| 57 | CALL tide_init_load |
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| 58 | ENDIF |
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[4292] | 59 | ENDIF |
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| 60 | ! |
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[9023] | 61 | IF( ln_read_load )THEN |
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| 62 | amp_pot(:,:,:) = amp_load(:,:,:) |
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| 63 | phi_pot(:,:,:) = phi_load(:,:,:) |
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| 64 | ELSE |
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| 65 | amp_pot(:,:,:) = 0._wp |
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| 66 | phi_pot(:,:,:) = 0._wp |
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| 67 | ENDIF |
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[4292] | 68 | pot_astro(:,:) = 0._wp |
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| 69 | ! |
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[6140] | 70 | ! If the run does not start from midnight then need to initialise tides |
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| 71 | ! at the start of the current day (only occurs when kt==nit000) |
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| 72 | ! Temporarily set nsec_day to beginning of day. |
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| 73 | nsec_day_orig = nsec_day |
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| 74 | IF ( nsec_day /= NINT(0.5_wp * rdt) ) THEN |
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| 75 | kt_tide = kt - (nsec_day - 0.5_wp * rdt)/rdt |
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| 76 | nsec_day = NINT(0.5_wp * rdt) |
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| 77 | ELSE |
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| 78 | kt_tide = kt |
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| 79 | ENDIF |
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[4292] | 80 | CALL tide_harmo( omega_tide, v0tide, utide, ftide, ntide, nb_harmo ) |
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| 81 | ! |
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| 82 | ! |
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| 83 | IF(lwp) THEN |
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| 84 | WRITE(numout,*) |
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| 85 | WRITE(numout,*) 'sbc_tide : Update of the components and (re)Init. the potential at kt=', kt |
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| 86 | WRITE(numout,*) '~~~~~~~~ ' |
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| 87 | DO jk = 1, nb_harmo |
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| 88 | WRITE(numout,*) Wave(ntide(jk))%cname_tide, utide(jk), ftide(jk), v0tide(jk), omega_tide(jk) |
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| 89 | END DO |
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| 90 | ENDIF |
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| 91 | ! |
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| 92 | IF( ln_tide_pot ) CALL tide_init_potential |
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| 93 | ! |
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[6140] | 94 | ! Reset nsec_day |
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| 95 | nsec_day = nsec_day_orig |
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[4292] | 96 | ENDIF |
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[3651] | 97 | ! |
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[4292] | 98 | END SUBROUTINE sbc_tide |
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[2952] | 99 | |
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| 100 | |
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[4292] | 101 | SUBROUTINE tide_init_potential |
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| 102 | !!---------------------------------------------------------------------- |
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| 103 | !! *** ROUTINE tide_init_potential *** |
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| 104 | !!---------------------------------------------------------------------- |
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| 105 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 106 | REAL(wp) :: zcons, ztmp1, ztmp2, zlat, zlon, ztmp, zamp, zcs ! local scalar |
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| 107 | !!---------------------------------------------------------------------- |
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[2952] | 108 | |
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[4292] | 109 | DO jk = 1, nb_harmo |
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| 110 | zcons = 0.7_wp * Wave(ntide(jk))%equitide * ftide(jk) |
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| 111 | DO ji = 1, jpi |
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| 112 | DO jj = 1, jpj |
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[9023] | 113 | ztmp1 = ftide(jk) * amp_pot(ji,jj,jk) * COS( phi_pot(ji,jj,jk) + v0tide(jk) + utide(jk) ) |
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| 114 | ztmp2 = -ftide(jk) * amp_pot(ji,jj,jk) * SIN( phi_pot(ji,jj,jk) + v0tide(jk) + utide(jk) ) |
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[4292] | 115 | zlat = gphit(ji,jj)*rad !! latitude en radian |
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| 116 | zlon = glamt(ji,jj)*rad !! longitude en radian |
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| 117 | ztmp = v0tide(jk) + utide(jk) + Wave(ntide(jk))%nutide * zlon |
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| 118 | ! le potentiel est composé des effets des astres: |
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| 119 | IF ( Wave(ntide(jk))%nutide == 1 ) THEN ; zcs = zcons * SIN( 2._wp*zlat ) |
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| 120 | ELSEIF( Wave(ntide(jk))%nutide == 2 ) THEN ; zcs = zcons * COS( zlat )**2 |
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| 121 | ELSE ; zcs = 0._wp |
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| 122 | ENDIF |
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| 123 | ztmp1 = ztmp1 + zcs * COS( ztmp ) |
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| 124 | ztmp2 = ztmp2 - zcs * SIN( ztmp ) |
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| 125 | zamp = SQRT( ztmp1*ztmp1 + ztmp2*ztmp2 ) |
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| 126 | amp_pot(ji,jj,jk) = zamp |
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| 127 | phi_pot(ji,jj,jk) = ATAN2( -ztmp2 / MAX( 1.e-10_wp , zamp ) , & |
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| 128 | & ztmp1 / MAX( 1.e-10_wp, zamp ) ) |
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| 129 | END DO |
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| 130 | END DO |
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| 131 | END DO |
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[3651] | 132 | ! |
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[4292] | 133 | END SUBROUTINE tide_init_potential |
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[2952] | 134 | |
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[9023] | 135 | SUBROUTINE tide_init_load |
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| 136 | !!---------------------------------------------------------------------- |
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| 137 | !! *** ROUTINE tide_init_load *** |
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| 138 | !!---------------------------------------------------------------------- |
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| 139 | INTEGER :: inum ! Logical unit of input file |
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| 140 | INTEGER :: ji, jj, itide ! dummy loop indices |
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[9125] | 141 | REAL(wp), DIMENSION(jpi,jpj) :: ztr, zti !: workspace to read in tidal harmonics data |
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[9023] | 142 | !!---------------------------------------------------------------------- |
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| 143 | IF(lwp) THEN |
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| 144 | WRITE(numout,*) |
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| 145 | WRITE(numout,*) 'tide_init_load : Initialization of load potential from file' |
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| 146 | WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
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| 147 | ENDIF |
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| 148 | ! |
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| 149 | CALL iom_open ( cn_tide_load , inum ) |
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| 150 | ! |
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| 151 | DO itide = 1, nb_harmo |
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| 152 | CALL iom_get ( inum, jpdom_data,TRIM(Wave(ntide(itide))%cname_tide)//'_z1', ztr(:,:) ) |
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| 153 | CALL iom_get ( inum, jpdom_data,TRIM(Wave(ntide(itide))%cname_tide)//'_z2', zti(:,:) ) |
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| 154 | ! |
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| 155 | DO ji=1,jpi |
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| 156 | DO jj=1,jpj |
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| 157 | amp_load(ji,jj,itide) = SQRT( ztr(ji,jj)**2. + zti(ji,jj)**2. ) |
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| 158 | phi_load(ji,jj,itide) = ATAN2(-zti(ji,jj), ztr(ji,jj) ) |
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| 159 | END DO |
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| 160 | END DO |
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| 161 | ! |
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| 162 | END DO |
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| 163 | CALL iom_close( inum ) |
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| 164 | ! |
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| 165 | END SUBROUTINE tide_init_load |
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| 166 | |
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[2952] | 167 | !!====================================================================== |
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| 168 | END MODULE sbctide |
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