[3] | 1 | MODULE dynnxt |
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[1502] | 2 | !!========================================================================= |
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[3] | 3 | !! *** MODULE dynnxt *** |
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| 4 | !! Ocean dynamics: time stepping |
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[1502] | 5 | !!========================================================================= |
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[1438] | 6 | !! History : OPA ! 1987-02 (P. Andrich, D. L Hostis) Original code |
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| 7 | !! ! 1990-10 (C. Levy, G. Madec) |
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| 8 | !! 7.0 ! 1993-03 (M. Guyon) symetrical conditions |
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| 9 | !! 8.0 ! 1997-02 (G. Madec & M. Imbard) opa, release 8.0 |
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| 10 | !! 8.2 ! 1997-04 (A. Weaver) Euler forward step |
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| 11 | !! - ! 1997-06 (G. Madec) lateral boudary cond., lbc routine |
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| 12 | !! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and module |
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| 13 | !! - ! 2002-10 (C. Talandier, A-M. Treguier) Open boundary cond. |
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| 14 | !! 2.0 ! 2005-11 (V. Garnier) Surface pressure gradient organization |
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| 15 | !! 2.3 ! 2007-07 (D. Storkey) Calls to BDY routines. |
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[1502] | 16 | !! 3.2 ! 2009-06 (G. Madec, R.Benshila) re-introduce the vvl option |
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[2528] | 17 | !! 3.3 ! 2010-09 (D. Storkey, E.O'Dea) Bug fix for BDY module |
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[2723] | 18 | !! 3.3 ! 2011-03 (P. Oddo) Bug fix for time-splitting+(BDY-OBC) and not VVL |
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[4292] | 19 | !! 3.5 ! 2013-07 (J. Chanut) Compliant with time splitting changes |
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[4990] | 20 | !! 3.7 ! 2014-04 (G. Madec) add the diagnostic of the time filter trends |
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[1502] | 21 | !!------------------------------------------------------------------------- |
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[1438] | 22 | |
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[1502] | 23 | !!------------------------------------------------------------------------- |
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| 24 | !! dyn_nxt : obtain the next (after) horizontal velocity |
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| 25 | !!------------------------------------------------------------------------- |
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[3] | 26 | USE oce ! ocean dynamics and tracers |
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| 27 | USE dom_oce ! ocean space and time domain |
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[2528] | 28 | USE sbc_oce ! Surface boundary condition: ocean fields |
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| 29 | USE phycst ! physical constants |
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[1502] | 30 | USE dynspg_oce ! type of surface pressure gradient |
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| 31 | USE dynadv ! dynamics: vector invariant versus flux form |
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| 32 | USE domvvl ! variable volume |
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[3294] | 33 | USE bdy_oce ! ocean open boundary conditions |
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| 34 | USE bdydta ! ocean open boundary conditions |
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| 35 | USE bdydyn ! ocean open boundary conditions |
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| 36 | USE bdyvol ! ocean open boundary condition (bdy_vol routines) |
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[4990] | 37 | USE trd_oce ! trends: ocean variables |
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| 38 | USE trddyn ! trend manager: dynamics |
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| 39 | USE trdken ! trend manager: kinetic energy |
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| 40 | ! |
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[1502] | 41 | USE in_out_manager ! I/O manager |
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[4990] | 42 | USE iom ! I/O manager library |
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[3] | 43 | USE lbclnk ! lateral boundary condition (or mpp link) |
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[2715] | 44 | USE lib_mpp ! MPP library |
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[3294] | 45 | USE wrk_nemo ! Memory Allocation |
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[258] | 46 | USE prtctl ! Print control |
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[4990] | 47 | USE timing ! Timing |
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[2528] | 48 | #if defined key_agrif |
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| 49 | USE agrif_opa_interp |
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| 50 | #endif |
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[3] | 51 | |
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| 52 | IMPLICIT NONE |
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| 53 | PRIVATE |
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| 54 | |
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[1438] | 55 | PUBLIC dyn_nxt ! routine called by step.F90 |
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| 56 | |
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[2715] | 57 | !!---------------------------------------------------------------------- |
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[2528] | 58 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[1438] | 59 | !! $Id$ |
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[2715] | 60 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 61 | !!---------------------------------------------------------------------- |
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[3] | 62 | CONTAINS |
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| 63 | |
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| 64 | SUBROUTINE dyn_nxt ( kt ) |
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| 65 | !!---------------------------------------------------------------------- |
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| 66 | !! *** ROUTINE dyn_nxt *** |
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| 67 | !! |
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[1502] | 68 | !! ** Purpose : Compute the after horizontal velocity. Apply the boundary |
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| 69 | !! condition on the after velocity, achieved the time stepping |
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| 70 | !! by applying the Asselin filter on now fields and swapping |
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| 71 | !! the fields. |
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[3] | 72 | !! |
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[1502] | 73 | !! ** Method : * After velocity is compute using a leap-frog scheme: |
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| 74 | !! (ua,va) = (ub,vb) + 2 rdt (ua,va) |
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| 75 | !! Note that with flux form advection and variable volume layer |
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| 76 | !! (lk_vvl=T), the leap-frog is applied on thickness weighted |
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| 77 | !! velocity. |
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| 78 | !! Note also that in filtered free surface (lk_dynspg_flt=T), |
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| 79 | !! the time stepping has already been done in dynspg module |
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[3] | 80 | !! |
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[1502] | 81 | !! * Apply lateral boundary conditions on after velocity |
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| 82 | !! at the local domain boundaries through lbc_lnk call, |
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[4328] | 83 | !! at the one-way open boundaries (lk_bdy=T), |
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[4990] | 84 | !! at the AGRIF zoom boundaries (lk_agrif=T) |
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[3] | 85 | !! |
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[1502] | 86 | !! * Apply the time filter applied and swap of the dynamics |
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| 87 | !! arrays to start the next time step: |
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| 88 | !! (ub,vb) = (un,vn) + atfp [ (ub,vb) + (ua,va) - 2 (un,vn) ] |
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| 89 | !! (un,vn) = (ua,va). |
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| 90 | !! Note that with flux form advection and variable volume layer |
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| 91 | !! (lk_vvl=T), the time filter is applied on thickness weighted |
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| 92 | !! velocity. |
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| 93 | !! |
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| 94 | !! ** Action : ub,vb filtered before horizontal velocity of next time-step |
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| 95 | !! un,vn now horizontal velocity of next time-step |
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[3] | 96 | !!---------------------------------------------------------------------- |
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| 97 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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[2715] | 98 | ! |
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[3] | 99 | INTEGER :: ji, jj, jk ! dummy loop indices |
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[3294] | 100 | INTEGER :: iku, ikv ! local integers |
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[1566] | 101 | #if ! defined key_dynspg_flt |
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[3] | 102 | REAL(wp) :: z2dt ! temporary scalar |
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[1566] | 103 | #endif |
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[4990] | 104 | REAL(wp) :: zue3a, zue3n, zue3b, zuf, zec ! local scalars |
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| 105 | REAL(wp) :: zve3a, zve3n, zve3b, zvf, z1_2dt ! - - |
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| 106 | REAL(wp), POINTER, DIMENSION(:,:) :: zue, zve |
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| 107 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ze3u_f, ze3v_f, zua, zva |
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[1502] | 108 | !!---------------------------------------------------------------------- |
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[3294] | 109 | ! |
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[4990] | 110 | IF( nn_timing == 1 ) CALL timing_start('dyn_nxt') |
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[3294] | 111 | ! |
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[4990] | 112 | CALL wrk_alloc( jpi,jpj,jpk, ze3u_f, ze3v_f, zua, zva ) |
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| 113 | IF( lk_dynspg_ts ) CALL wrk_alloc( jpi,jpj, zue, zve ) |
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[3294] | 114 | ! |
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[3] | 115 | IF( kt == nit000 ) THEN |
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| 116 | IF(lwp) WRITE(numout,*) |
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| 117 | IF(lwp) WRITE(numout,*) 'dyn_nxt : time stepping' |
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| 118 | IF(lwp) WRITE(numout,*) '~~~~~~~' |
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| 119 | ENDIF |
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| 120 | |
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[1502] | 121 | #if defined key_dynspg_flt |
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| 122 | ! |
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| 123 | ! Next velocity : Leap-frog time stepping already done in dynspg_flt.F routine |
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| 124 | ! ------------- |
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[3] | 125 | |
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[1502] | 126 | ! Update after velocity on domain lateral boundaries (only local domain required) |
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| 127 | ! -------------------------------------------------- |
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| 128 | CALL lbc_lnk( ua, 'U', -1. ) ! local domain boundaries |
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| 129 | CALL lbc_lnk( va, 'V', -1. ) |
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| 130 | ! |
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| 131 | #else |
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[4292] | 132 | |
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| 133 | # if defined key_dynspg_exp |
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[1502] | 134 | ! Next velocity : Leap-frog time stepping |
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[1438] | 135 | ! ------------- |
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[1502] | 136 | z2dt = 2. * rdt ! Euler or leap-frog time step |
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| 137 | IF( neuler == 0 .AND. kt == nit000 ) z2dt = rdt |
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| 138 | ! |
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| 139 | IF( ln_dynadv_vec .OR. .NOT. lk_vvl ) THEN ! applied on velocity |
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[1438] | 140 | DO jk = 1, jpkm1 |
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[1502] | 141 | ua(:,:,jk) = ( ub(:,:,jk) + z2dt * ua(:,:,jk) ) * umask(:,:,jk) |
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| 142 | va(:,:,jk) = ( vb(:,:,jk) + z2dt * va(:,:,jk) ) * vmask(:,:,jk) |
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| 143 | END DO |
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| 144 | ELSE ! applied on thickness weighted velocity |
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| 145 | DO jk = 1, jpkm1 |
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[5845] | 146 | ua(:,:,jk) = ( ub(:,:,jk) * e3u_b(:,:,jk) & |
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| 147 | & + z2dt * ua(:,:,jk) * e3u_n(:,:,jk) ) / e3u_a(:,:,jk) * umask(:,:,jk) |
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| 148 | va(:,:,jk) = ( vb(:,:,jk) * e3v_b(:,:,jk) & |
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| 149 | & + z2dt * va(:,:,jk) * e3v_n(:,:,jk) ) / e3v_a(:,:,jk) * vmask(:,:,jk) |
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[592] | 150 | END DO |
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| 151 | ENDIF |
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[4292] | 152 | # endif |
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[592] | 153 | |
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[4292] | 154 | # if defined key_dynspg_ts |
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[4990] | 155 | !!gm IF ( lk_dynspg_ts ) THEN .... |
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[4292] | 156 | ! Ensure below that barotropic velocities match time splitting estimate |
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| 157 | ! Compute actual transport and replace it with ts estimate at "after" time step |
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[5845] | 158 | zue(:,:) = e3u_a(:,:,1) * ua(:,:,1) * umask(:,:,1) |
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| 159 | zve(:,:) = e3v_a(:,:,1) * va(:,:,1) * vmask(:,:,1) |
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[4990] | 160 | DO jk = 2, jpkm1 |
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[5845] | 161 | zue(:,:) = zue(:,:) + e3u_a(:,:,jk) * ua(:,:,jk) * umask(:,:,jk) |
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| 162 | zve(:,:) = zve(:,:) + e3v_a(:,:,jk) * va(:,:,jk) * vmask(:,:,jk) |
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[4370] | 163 | END DO |
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| 164 | DO jk = 1, jpkm1 |
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[5845] | 165 | ua(:,:,jk) = ( ua(:,:,jk) - zue(:,:) * r1_hu_a(:,:) + ua_b(:,:) ) * umask(:,:,jk) |
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| 166 | va(:,:,jk) = ( va(:,:,jk) - zve(:,:) * r1_hv_a(:,:) + va_b(:,:) ) * vmask(:,:,jk) |
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[4370] | 167 | END DO |
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[1502] | 168 | |
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[4292] | 169 | IF (lk_dynspg_ts.AND.(.NOT.ln_bt_fw)) THEN |
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| 170 | ! Remove advective velocity from "now velocities" |
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| 171 | ! prior to asselin filtering |
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[4312] | 172 | ! In the forward case, this is done below after asselin filtering |
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| 173 | ! so that asselin contribution is removed at the same time |
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[4292] | 174 | DO jk = 1, jpkm1 |
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| 175 | un(:,:,jk) = ( un(:,:,jk) - un_adv(:,:) + un_b(:,:) )*umask(:,:,jk) |
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| 176 | vn(:,:,jk) = ( vn(:,:,jk) - vn_adv(:,:) + vn_b(:,:) )*vmask(:,:,jk) |
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| 177 | END DO |
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| 178 | ENDIF |
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[4990] | 179 | !!gm ENDIF |
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[4292] | 180 | # endif |
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| 181 | |
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[1502] | 182 | ! Update after velocity on domain lateral boundaries |
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| 183 | ! -------------------------------------------------- |
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| 184 | CALL lbc_lnk( ua, 'U', -1. ) !* local domain boundaries |
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| 185 | CALL lbc_lnk( va, 'V', -1. ) |
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| 186 | ! |
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[4328] | 187 | # if defined key_bdy |
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[1502] | 188 | ! !* BDY open boundaries |
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[3764] | 189 | IF( lk_bdy .AND. lk_dynspg_exp ) CALL bdy_dyn( kt ) |
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| 190 | IF( lk_bdy .AND. lk_dynspg_ts ) CALL bdy_dyn( kt, dyn3d_only=.true. ) |
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[3294] | 191 | |
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| 192 | !!$ Do we need a call to bdy_vol here?? |
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| 193 | ! |
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[1438] | 194 | # endif |
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[1502] | 195 | ! |
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[392] | 196 | # if defined key_agrif |
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[1502] | 197 | CALL Agrif_dyn( kt ) !* AGRIF zoom boundaries |
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[389] | 198 | # endif |
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[3] | 199 | #endif |
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[592] | 200 | |
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[4990] | 201 | IF( l_trddyn ) THEN ! prepare the atf trend computation + some diagnostics |
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| 202 | z1_2dt = 1._wp / (2. * rdt) ! Euler or leap-frog time step |
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| 203 | IF( neuler == 0 .AND. kt == nit000 ) z1_2dt = 1._wp / rdt |
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| 204 | ! |
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| 205 | ! ! Kinetic energy and Conversion |
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| 206 | IF( ln_KE_trd ) CALL trd_dyn( ua, va, jpdyn_ken, kt ) |
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| 207 | ! |
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| 208 | IF( ln_dyn_trd ) THEN ! 3D output: total momentum trends |
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| 209 | zua(:,:,:) = ( ua(:,:,:) - ub(:,:,:) ) * z1_2dt |
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| 210 | zva(:,:,:) = ( va(:,:,:) - vb(:,:,:) ) * z1_2dt |
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| 211 | CALL iom_put( "utrd_tot", zua ) ! total momentum trends, except the asselin time filter |
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| 212 | CALL iom_put( "vtrd_tot", zva ) |
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| 213 | ENDIF |
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| 214 | ! |
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| 215 | zua(:,:,:) = un(:,:,:) ! save the now velocity before the asselin filter |
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| 216 | zva(:,:,:) = vn(:,:,:) ! (caution: there will be a shift by 1 timestep in the |
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| 217 | ! ! computation of the asselin filter trends) |
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| 218 | ENDIF |
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| 219 | |
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[1438] | 220 | ! Time filter and swap of dynamics arrays |
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| 221 | ! ------------------------------------------ |
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[1502] | 222 | IF( neuler == 0 .AND. kt == nit000 ) THEN !* Euler at first time-step: only swap |
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| 223 | DO jk = 1, jpkm1 |
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| 224 | un(:,:,jk) = ua(:,:,jk) ! un <-- ua |
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[1438] | 225 | vn(:,:,jk) = va(:,:,jk) |
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| 226 | END DO |
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[4292] | 227 | IF (lk_vvl) THEN |
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| 228 | DO jk = 1, jpkm1 |
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[5845] | 229 | e3t_b(:,:,jk) = e3t_n(:,:,jk) |
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| 230 | e3u_b(:,:,jk) = e3u_n(:,:,jk) |
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| 231 | e3v_b(:,:,jk) = e3v_n(:,:,jk) |
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[4292] | 232 | ENDDO |
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| 233 | ENDIF |
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[1502] | 234 | ELSE !* Leap-Frog : Asselin filter and swap |
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[2528] | 235 | ! ! =============! |
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| 236 | IF( .NOT. lk_vvl ) THEN ! Fixed volume ! |
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| 237 | ! ! =============! |
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[1502] | 238 | DO jk = 1, jpkm1 |
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[592] | 239 | DO jj = 1, jpj |
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[1502] | 240 | DO ji = 1, jpi |
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[4990] | 241 | zuf = un(ji,jj,jk) + atfp * ( ub(ji,jj,jk) - 2._wp * un(ji,jj,jk) + ua(ji,jj,jk) ) |
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| 242 | zvf = vn(ji,jj,jk) + atfp * ( vb(ji,jj,jk) - 2._wp * vn(ji,jj,jk) + va(ji,jj,jk) ) |
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[1502] | 243 | ! |
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| 244 | ub(ji,jj,jk) = zuf ! ub <-- filtered velocity |
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| 245 | vb(ji,jj,jk) = zvf |
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| 246 | un(ji,jj,jk) = ua(ji,jj,jk) ! un <-- ua |
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| 247 | vn(ji,jj,jk) = va(ji,jj,jk) |
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| 248 | END DO |
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| 249 | END DO |
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| 250 | END DO |
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[2528] | 251 | ! ! ================! |
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| 252 | ELSE ! Variable volume ! |
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| 253 | ! ! ================! |
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[4292] | 254 | ! Before scale factor at t-points |
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| 255 | ! (used as a now filtered scale factor until the swap) |
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| 256 | ! ---------------------------------------------------- |
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| 257 | IF (lk_dynspg_ts.AND.ln_bt_fw) THEN |
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[4338] | 258 | ! No asselin filtering on thicknesses if forward time splitting |
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[5845] | 259 | e3t_b(:,:,:) = e3t_n(:,:,:) |
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[4292] | 260 | ELSE |
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[5845] | 261 | e3t_b(:,:,:) = e3t_n(:,:,:) + atfp * ( e3t_b(:,:,:) - 2._wp * e3t_n(:,:,:) + e3t_a(:,:,:) ) |
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[4292] | 262 | ! Add volume filter correction: compatibility with tracer advection scheme |
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| 263 | ! => time filter + conservation correction (only at the first level) |
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[5643] | 264 | IF ( nn_isf == 0) THEN ! if no ice shelf melting |
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[5845] | 265 | e3t_b(:,:,1) = e3t_b(:,:,1) - atfp * rdt * r1_rau0 * ( emp_b(:,:) - emp(:,:) & |
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[5643] | 266 | & -rnf_b(:,:) + rnf(:,:) ) * tmask(:,:,1) |
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| 267 | ELSE ! if ice shelf melting |
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| 268 | DO jj = 1,jpj |
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| 269 | DO ji = 1,jpi |
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| 270 | jk = mikt(ji,jj) |
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[5845] | 271 | e3t_b(ji,jj,jk) = e3t_b(ji,jj,jk) - atfp * rdt * r1_rau0 & |
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| 272 | & * ( (emp_b(ji,jj) - emp(ji,jj) ) & |
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| 273 | & - (rnf_b(ji,jj) - rnf(ji,jj) ) & |
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| 274 | & + (fwfisf_b(ji,jj) - fwfisf(ji,jj)) ) * tmask(ji,jj,jk) |
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[5643] | 275 | END DO |
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| 276 | END DO |
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| 277 | END IF |
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[4292] | 278 | ENDIF |
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[2528] | 279 | ! |
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[4292] | 280 | IF( ln_dynadv_vec ) THEN |
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| 281 | ! Before scale factor at (u/v)-points |
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| 282 | ! ----------------------------------- |
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[5845] | 283 | CALL dom_vvl_interpol( e3t_b(:,:,:), e3u_b(:,:,:), 'U' ) |
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| 284 | CALL dom_vvl_interpol( e3t_b(:,:,:), e3v_b(:,:,:), 'V' ) |
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[4292] | 285 | ! Leap-Frog - Asselin filter and swap: applied on velocity |
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| 286 | ! ----------------------------------- |
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| 287 | DO jk = 1, jpkm1 |
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| 288 | DO jj = 1, jpj |
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[2528] | 289 | DO ji = 1, jpi |
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[4292] | 290 | zuf = un(ji,jj,jk) + atfp * ( ub(ji,jj,jk) - 2._wp * un(ji,jj,jk) + ua(ji,jj,jk) ) |
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| 291 | zvf = vn(ji,jj,jk) + atfp * ( vb(ji,jj,jk) - 2._wp * vn(ji,jj,jk) + va(ji,jj,jk) ) |
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[2528] | 292 | ! |
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| 293 | ub(ji,jj,jk) = zuf ! ub <-- filtered velocity |
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| 294 | vb(ji,jj,jk) = zvf |
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| 295 | un(ji,jj,jk) = ua(ji,jj,jk) ! un <-- ua |
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| 296 | vn(ji,jj,jk) = va(ji,jj,jk) |
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| 297 | END DO |
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| 298 | END DO |
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| 299 | END DO |
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| 300 | ! |
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[4292] | 301 | ELSE |
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| 302 | ! Temporary filtered scale factor at (u/v)-points (will become before scale factor) |
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| 303 | !------------------------------------------------ |
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[5845] | 304 | CALL dom_vvl_interpol( e3t_b(:,:,:), ze3u_f, 'U' ) |
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| 305 | CALL dom_vvl_interpol( e3t_b(:,:,:), ze3v_f, 'V' ) |
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[4292] | 306 | ! Leap-Frog - Asselin filter and swap: applied on thickness weighted velocity |
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| 307 | ! ----------------------------------- =========================== |
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| 308 | DO jk = 1, jpkm1 |
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| 309 | DO jj = 1, jpj |
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[4312] | 310 | DO ji = 1, jpi |
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[5845] | 311 | zue3a = ua(ji,jj,jk) * e3u_a(ji,jj,jk) |
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| 312 | zve3a = va(ji,jj,jk) * e3v_a(ji,jj,jk) |
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| 313 | zue3n = un(ji,jj,jk) * e3u_n(ji,jj,jk) |
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| 314 | zve3n = vn(ji,jj,jk) * e3v_n(ji,jj,jk) |
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| 315 | zue3b = ub(ji,jj,jk) * e3u_b(ji,jj,jk) |
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| 316 | zve3b = vb(ji,jj,jk) * e3v_b(ji,jj,jk) |
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[2528] | 317 | ! |
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[3294] | 318 | zuf = ( zue3n + atfp * ( zue3b - 2._wp * zue3n + zue3a ) ) / ze3u_f(ji,jj,jk) |
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| 319 | zvf = ( zve3n + atfp * ( zve3b - 2._wp * zve3n + zve3a ) ) / ze3v_f(ji,jj,jk) |
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[2528] | 320 | ! |
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[3294] | 321 | ub(ji,jj,jk) = zuf ! ub <-- filtered velocity |
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[2528] | 322 | vb(ji,jj,jk) = zvf |
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[3294] | 323 | un(ji,jj,jk) = ua(ji,jj,jk) ! un <-- ua |
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[2528] | 324 | vn(ji,jj,jk) = va(ji,jj,jk) |
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| 325 | END DO |
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| 326 | END DO |
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| 327 | END DO |
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[5845] | 328 | e3u_b(:,:,1:jpkm1) = ze3u_f(:,:,1:jpkm1) ! e3u_b <-- filtered scale factor |
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| 329 | e3v_b(:,:,1:jpkm1) = ze3v_f(:,:,1:jpkm1) |
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[2528] | 330 | ENDIF |
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| 331 | ! |
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[3] | 332 | ENDIF |
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[2528] | 333 | ! |
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[4292] | 334 | IF (lk_dynspg_ts.AND.ln_bt_fw) THEN |
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[4312] | 335 | ! Revert "before" velocities to time split estimate |
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| 336 | ! Doing it here also means that asselin filter contribution is removed |
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[5845] | 337 | zue(:,:) = e3u_b(:,:,1) * ub(:,:,1) * umask(:,:,1) |
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| 338 | zve(:,:) = e3v_b(:,:,1) * vb(:,:,1) * vmask(:,:,1) |
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[4990] | 339 | DO jk = 2, jpkm1 |
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[5845] | 340 | zue(:,:) = zue(:,:) + e3u_b(:,:,jk) * ub(:,:,jk) * umask(:,:,jk) |
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| 341 | zve(:,:) = zve(:,:) + e3v_b(:,:,jk) * vb(:,:,jk) * vmask(:,:,jk) |
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[4370] | 342 | END DO |
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| 343 | DO jk = 1, jpkm1 |
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[5845] | 344 | ub(:,:,jk) = ub(:,:,jk) - (zue(:,:) * r1_hu_n(:,:) - un_b(:,:)) * umask(:,:,jk) |
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| 345 | vb(:,:,jk) = vb(:,:,jk) - (zve(:,:) * r1_hv_n(:,:) - vn_b(:,:)) * vmask(:,:,jk) |
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[4292] | 346 | END DO |
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| 347 | ENDIF |
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| 348 | ! |
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| 349 | ENDIF ! neuler =/0 |
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[4354] | 350 | ! |
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| 351 | ! Set "now" and "before" barotropic velocities for next time step: |
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| 352 | ! JC: Would be more clever to swap variables than to make a full vertical |
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| 353 | ! integration |
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| 354 | ! |
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[4370] | 355 | ! |
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| 356 | IF (lk_vvl) THEN |
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[5845] | 357 | hu_b(:,:) = e3u_b(:,:,1) * umask(:,:,1) |
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| 358 | hv_b(:,:) = e3v_b(:,:,1) * vmask(:,:,1) |
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| 359 | DO jk = 2, jpkm1 |
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| 360 | hu_b(:,:) = hu_b(:,:) + e3u_b(:,:,jk) * umask(:,:,jk) |
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| 361 | hv_b(:,:) = hv_b(:,:) + e3v_b(:,:,jk) * vmask(:,:,jk) |
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[4354] | 362 | END DO |
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[5845] | 363 | !!gm don't understand the use of umask_i .... |
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| 364 | r1_hu_b(:,:) = umask_i(:,:) / ( hu_b(:,:) + 1._wp - umask_i(:,:) ) |
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| 365 | r1_hv_b(:,:) = vmask_i(:,:) / ( hv_b(:,:) + 1._wp - vmask_i(:,:) ) |
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[4354] | 366 | ENDIF |
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| 367 | ! |
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[5845] | 368 | un_b(:,:) = 0._wp ; vn_b(:,:) = 0._wp |
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| 369 | ub_b(:,:) = 0._wp ; vb_b(:,:) = 0._wp |
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[4354] | 370 | DO jk = 1, jpkm1 |
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| 371 | DO jj = 1, jpj |
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| 372 | DO ji = 1, jpi |
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[5845] | 373 | un_b(ji,jj) = un_b(ji,jj) + e3u_a(ji,jj,jk) * un(ji,jj,jk) * umask(ji,jj,jk) |
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| 374 | vn_b(ji,jj) = vn_b(ji,jj) + e3v_a(ji,jj,jk) * vn(ji,jj,jk) * vmask(ji,jj,jk) |
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[4354] | 375 | ! |
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[5845] | 376 | ub_b(ji,jj) = ub_b(ji,jj) + e3u_b(ji,jj,jk) * ub(ji,jj,jk) * umask(ji,jj,jk) |
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| 377 | vb_b(ji,jj) = vb_b(ji,jj) + e3v_b(ji,jj,jk) * vb(ji,jj,jk) * vmask(ji,jj,jk) |
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[4354] | 378 | END DO |
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| 379 | END DO |
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| 380 | END DO |
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[5845] | 381 | un_b(:,:) = un_b(:,:) * r1_hu_a(:,:) |
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| 382 | vn_b(:,:) = vn_b(:,:) * r1_hv_a(:,:) |
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| 383 | ub_b(:,:) = ub_b(:,:) * r1_hu_b(:,:) |
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| 384 | vb_b(:,:) = vb_b(:,:) * r1_hv_b(:,:) |
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[4354] | 385 | ! |
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[4990] | 386 | IF( l_trddyn ) THEN ! 3D output: asselin filter trends on momentum |
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| 387 | zua(:,:,:) = ( ub(:,:,:) - zua(:,:,:) ) * z1_2dt |
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| 388 | zva(:,:,:) = ( vb(:,:,:) - zva(:,:,:) ) * z1_2dt |
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| 389 | CALL trd_dyn( zua, zva, jpdyn_atf, kt ) |
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| 390 | ENDIF |
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| 391 | ! |
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[1438] | 392 | IF(ln_ctl) CALL prt_ctl( tab3d_1=un, clinfo1=' nxt - Un: ', mask1=umask, & |
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| 393 | & tab3d_2=vn, clinfo2=' Vn: ' , mask2=vmask ) |
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| 394 | ! |
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[4990] | 395 | CALL wrk_dealloc( jpi,jpj,jpk, ze3u_f, ze3v_f, zua, zva ) |
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| 396 | IF( lk_dynspg_ts ) CALL wrk_dealloc( jpi,jpj, zue, zve ) |
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[2715] | 397 | ! |
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[3294] | 398 | IF( nn_timing == 1 ) CALL timing_stop('dyn_nxt') |
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| 399 | ! |
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[3] | 400 | END SUBROUTINE dyn_nxt |
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| 401 | |
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[1502] | 402 | !!========================================================================= |
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[3] | 403 | END MODULE dynnxt |
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