[358] | 1 | MODULE dynspg_ts |
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[9023] | 2 | |
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[12377] | 3 | !! Includes ROMS wd scheme with diagnostic outputs ; puu(:,:,:,Kmm) and puu(:,:,:,Krhs) updates are commented out ! |
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[9023] | 4 | |
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[358] | 5 | !!====================================================================== |
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[6140] | 6 | !! *** MODULE dynspg_ts *** |
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| 7 | !! Ocean dynamics: surface pressure gradient trend, split-explicit scheme |
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| 8 | !!====================================================================== |
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[1502] | 9 | !! History : 1.0 ! 2004-12 (L. Bessieres, G. Madec) Original code |
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| 10 | !! - ! 2005-11 (V. Garnier, G. Madec) optimization |
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| 11 | !! - ! 2006-08 (S. Masson) distributed restart using iom |
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| 12 | !! 2.0 ! 2007-07 (D. Storkey) calls to BDY routines |
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| 13 | !! - ! 2008-01 (R. Benshila) change averaging method |
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| 14 | !! 3.2 ! 2009-07 (R. Benshila, G. Madec) Complete revisit associated to vvl reactivation |
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[2528] | 15 | !! 3.3 ! 2010-09 (D. Storkey, E. O'Dea) update for BDY for Shelf configurations |
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[2724] | 16 | !! 3.3 ! 2011-03 (R. Benshila, R. Hordoir, P. Oddo) update calculation of ub_b |
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[4292] | 17 | !! 3.5 ! 2013-07 (J. Chanut) Switch to Forward-backward time stepping |
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| 18 | !! 3.6 ! 2013-11 (A. Coward) Update for z-tilde compatibility |
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[5930] | 19 | !! 3.7 ! 2015-11 (J. Chanut) free surface simplification |
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[7646] | 20 | !! - ! 2016-12 (G. Madec, E. Clementi) update for Stoke-Drift divergence |
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[9019] | 21 | !! 4.0 ! 2017-05 (G. Madec) drag coef. defined at t-point (zdfdrg.F90) |
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[2724] | 22 | !!--------------------------------------------------------------------- |
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[6140] | 23 | |
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[358] | 24 | !!---------------------------------------------------------------------- |
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[6140] | 25 | !! dyn_spg_ts : compute surface pressure gradient trend using a time-splitting scheme |
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| 26 | !! dyn_spg_ts_init: initialisation of the time-splitting scheme |
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| 27 | !! ts_wgt : set time-splitting weights for temporal averaging (or not) |
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| 28 | !! ts_rst : read/write time-splitting fields in restart file |
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[358] | 29 | !!---------------------------------------------------------------------- |
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| 30 | USE oce ! ocean dynamics and tracers |
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| 31 | USE dom_oce ! ocean space and time domain |
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[888] | 32 | USE sbc_oce ! surface boundary condition: ocean |
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[12377] | 33 | USE isf_oce ! ice shelf variable (fwfisf) |
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[9019] | 34 | USE zdf_oce ! vertical physics: variables |
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| 35 | USE zdfdrg ! vertical physics: top/bottom drag coef. |
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[6140] | 36 | USE sbcapr ! surface boundary condition: atmospheric pressure |
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| 37 | USE dynadv , ONLY: ln_dynadv_vec |
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[9528] | 38 | USE dynvor ! vortivity scheme indicators |
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[358] | 39 | USE phycst ! physical constants |
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| 40 | USE dynvor ! vorticity term |
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[6152] | 41 | USE wet_dry ! wetting/drying flux limter |
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[7646] | 42 | USE bdy_oce ! open boundary |
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[10481] | 43 | USE bdyvol ! open boundary volume conservation |
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[5930] | 44 | USE bdytides ! open boundary condition data |
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[3294] | 45 | USE bdydyn2d ! open boundary conditions on barotropic variables |
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[12377] | 46 | USE tide_mod ! |
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[7646] | 47 | USE sbcwave ! surface wave |
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[9019] | 48 | #if defined key_agrif |
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[9570] | 49 | USE agrif_oce_interp ! agrif |
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[9124] | 50 | USE agrif_oce |
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[9019] | 51 | #endif |
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| 52 | #if defined key_asminc |
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| 53 | USE asminc ! Assimilation increment |
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| 54 | #endif |
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[6140] | 55 | ! |
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| 56 | USE in_out_manager ! I/O manager |
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[358] | 57 | USE lib_mpp ! distributed memory computing library |
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| 58 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 59 | USE prtctl ! Print control |
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[2715] | 60 | USE iom ! IOM library |
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[4292] | 61 | USE restart ! only for lrst_oce |
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[358] | 62 | |
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[11536] | 63 | USE iom ! to remove |
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| 64 | |
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[358] | 65 | IMPLICIT NONE |
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| 66 | PRIVATE |
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| 67 | |
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[9124] | 68 | PUBLIC dyn_spg_ts ! called by dyn_spg |
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| 69 | PUBLIC dyn_spg_ts_init ! - - dyn_spg_init |
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[358] | 70 | |
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[9019] | 71 | !! Time filtered arrays at baroclinic time step: |
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| 72 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: un_adv , vn_adv !: Advection vel. at "now" barocl. step |
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[9124] | 73 | ! |
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[12489] | 74 | INTEGER, SAVE :: icycle ! Number of barotropic sub-steps for each internal step nn_e <= 2.5 nn_e |
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| 75 | REAL(wp),SAVE :: rDt_e ! Barotropic time step |
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[9019] | 76 | ! |
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| 77 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:) :: wgtbtp1, wgtbtp2 ! 1st & 2nd weights used in time filtering of barotropic fields |
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[9124] | 78 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: zwz ! ff_f/h at F points |
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| 79 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ftnw, ftne ! triad of coriolis parameter |
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| 80 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ftsw, ftse ! (only used with een vorticity scheme) |
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[4292] | 81 | |
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[9043] | 82 | REAL(wp) :: r1_12 = 1._wp / 12._wp ! local ratios |
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| 83 | REAL(wp) :: r1_8 = 0.125_wp ! |
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| 84 | REAL(wp) :: r1_4 = 0.25_wp ! |
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| 85 | REAL(wp) :: r1_2 = 0.5_wp ! |
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[508] | 86 | |
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[358] | 87 | !! * Substitutions |
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[12377] | 88 | # include "do_loop_substitute.h90" |
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[13237] | 89 | # include "domzgr_substitute.h90" |
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[2715] | 90 | !!---------------------------------------------------------------------- |
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[9598] | 91 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[5217] | 92 | !! $Id$ |
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[10068] | 93 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[2715] | 94 | !!---------------------------------------------------------------------- |
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[358] | 95 | CONTAINS |
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| 96 | |
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[2715] | 97 | INTEGER FUNCTION dyn_spg_ts_alloc() |
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| 98 | !!---------------------------------------------------------------------- |
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| 99 | !! *** routine dyn_spg_ts_alloc *** |
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| 100 | !!---------------------------------------------------------------------- |
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[6140] | 101 | INTEGER :: ierr(3) |
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[4292] | 102 | !!---------------------------------------------------------------------- |
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| 103 | ierr(:) = 0 |
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[6140] | 104 | ! |
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[12489] | 105 | ALLOCATE( wgtbtp1(3*nn_e), wgtbtp2(3*nn_e), zwz(jpi,jpj), STAT=ierr(1) ) |
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[9528] | 106 | IF( ln_dynvor_een .OR. ln_dynvor_eeT ) & |
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[11536] | 107 | & ALLOCATE( ftnw(jpi,jpj) , ftne(jpi,jpj) , ftsw(jpi,jpj) , ftse(jpi,jpj), STAT=ierr(2) ) |
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[6140] | 108 | ! |
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| 109 | ALLOCATE( un_adv(jpi,jpj), vn_adv(jpi,jpj) , STAT=ierr(3) ) |
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| 110 | ! |
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| 111 | dyn_spg_ts_alloc = MAXVAL( ierr(:) ) |
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| 112 | ! |
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[10425] | 113 | CALL mpp_sum( 'dynspg_ts', dyn_spg_ts_alloc ) |
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| 114 | IF( dyn_spg_ts_alloc /= 0 ) CALL ctl_stop( 'STOP', 'dyn_spg_ts_alloc: failed to allocate arrays' ) |
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[2715] | 115 | ! |
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| 116 | END FUNCTION dyn_spg_ts_alloc |
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| 117 | |
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[5836] | 118 | |
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[14225] | 119 | SUBROUTINE dyn_spg_ts( kt, Kbb, Kmm, Krhs, puu, pvv, pssh, puu_b, pvv_b, Kaa, k_only_ADV ) |
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[358] | 120 | !!---------------------------------------------------------------------- |
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| 121 | !! |
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[6140] | 122 | !! ** Purpose : - Compute the now trend due to the explicit time stepping |
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| 123 | !! of the quasi-linear barotropic system, and add it to the |
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| 124 | !! general momentum trend. |
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[358] | 125 | !! |
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[6140] | 126 | !! ** Method : - split-explicit schem (time splitting) : |
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[4374] | 127 | !! Barotropic variables are advanced from internal time steps |
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| 128 | !! "n" to "n+1" if ln_bt_fw=T |
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| 129 | !! or from |
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| 130 | !! "n-1" to "n+1" if ln_bt_fw=F |
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| 131 | !! thanks to a generalized forward-backward time stepping (see ref. below). |
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[358] | 132 | !! |
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[4374] | 133 | !! ** Action : |
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[12377] | 134 | !! -Update the filtered free surface at step "n+1" : pssh(:,:,Kaa) |
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| 135 | !! -Update filtered barotropic velocities at step "n+1" : puu_b(:,:,:,Kaa), vv_b(:,:,:,Kaa) |
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[9023] | 136 | !! -Compute barotropic advective fluxes at step "n" : un_adv, vn_adv |
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[4374] | 137 | !! These are used to advect tracers and are compliant with discrete |
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| 138 | !! continuity equation taken at the baroclinic time steps. This |
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| 139 | !! ensures tracers conservation. |
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[12377] | 140 | !! - (puu(:,:,:,Krhs), pvv(:,:,:,Krhs)) momentum trend updated with barotropic component. |
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[358] | 141 | !! |
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[6140] | 142 | !! References : Shchepetkin and McWilliams, Ocean Modelling, 2005. |
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[358] | 143 | !!--------------------------------------------------------------------- |
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[12377] | 144 | INTEGER , INTENT( in ) :: kt ! ocean time-step index |
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| 145 | INTEGER , INTENT( in ) :: Kbb, Kmm, Krhs, Kaa ! ocean time level indices |
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| 146 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpt), INTENT(inout) :: puu, pvv ! ocean velocities and RHS of momentum equation |
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| 147 | REAL(wp), DIMENSION(jpi,jpj,jpt) , INTENT(inout) :: pssh, puu_b, pvv_b ! SSH and barotropic velocities at main time levels |
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[14225] | 148 | INTEGER , OPTIONAL , INTENT( in ) :: k_only_ADV ! only Advection in the RHS |
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[2715] | 149 | ! |
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[9554] | 150 | INTEGER :: ji, jj, jk, jn ! dummy loop indices |
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[9019] | 151 | LOGICAL :: ll_fw_start ! =T : forward integration |
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[9554] | 152 | LOGICAL :: ll_init ! =T : special startup of 2d equations |
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[11536] | 153 | INTEGER :: noffset ! local integers : time offset for bdy update |
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[12489] | 154 | REAL(wp) :: r1_Dt_b, z1_hu, z1_hv ! local scalars |
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[9528] | 155 | REAL(wp) :: za0, za1, za2, za3 ! - - |
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[12206] | 156 | REAL(wp) :: zztmp, zldg ! - - |
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[11536] | 157 | REAL(wp) :: zhu_bck, zhv_bck, zhdiv ! - - |
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| 158 | REAL(wp) :: zun_save, zvn_save ! - - |
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| 159 | REAL(wp), DIMENSION(jpi,jpj) :: zu_trd, zu_frc, zu_spg, zssh_frc |
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| 160 | REAL(wp), DIMENSION(jpi,jpj) :: zv_trd, zv_frc, zv_spg |
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| 161 | REAL(wp), DIMENSION(jpi,jpj) :: zsshu_a, zhup2_e, zhtp2_e |
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| 162 | REAL(wp), DIMENSION(jpi,jpj) :: zsshv_a, zhvp2_e, zsshp2_e |
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[9019] | 163 | REAL(wp), DIMENSION(jpi,jpj) :: zCdU_u, zCdU_v ! top/bottom stress at u- & v-points |
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[11536] | 164 | REAL(wp), DIMENSION(jpi,jpj) :: zhU, zhV ! fluxes |
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[14205] | 165 | !!st#if defined key_qco |
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| 166 | !!st REAL(wp), DIMENSION(jpi, jpj, jpk) :: ze3u, ze3v |
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| 167 | !!st#endif |
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[3294] | 168 | ! |
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[9023] | 169 | REAL(wp) :: zwdramp ! local scalar - only used if ln_wd_dl = .True. |
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| 170 | |
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| 171 | INTEGER :: iwdg, jwdg, kwdg ! short-hand values for the indices of the output point |
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| 172 | |
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| 173 | REAL(wp) :: zepsilon, zgamma ! - - |
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[9019] | 174 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zcpx, zcpy ! Wetting/Dying gravity filter coef. |
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[9023] | 175 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: ztwdmask, zuwdmask, zvwdmask ! ROMS wetting and drying masks at t,u,v points |
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| 176 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zuwdav2, zvwdav2 ! averages over the sub-steps of zuwdmask and zvwdmask |
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[12377] | 177 | REAL(wp) :: zt0substep ! Time of day at the beginning of the time substep |
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[358] | 178 | !!---------------------------------------------------------------------- |
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[3294] | 179 | ! |
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[9023] | 180 | IF( ln_wd_il ) ALLOCATE( zcpx(jpi,jpj), zcpy(jpi,jpj) ) |
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| 181 | ! !* Allocate temporary arrays |
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| 182 | IF( ln_wd_dl ) ALLOCATE( ztwdmask(jpi,jpj), zuwdmask(jpi,jpj), zvwdmask(jpi,jpj), zuwdav2(jpi,jpj), zvwdav2(jpi,jpj)) |
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[3294] | 183 | ! |
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[9023] | 184 | zwdramp = r_rn_wdmin1 ! simplest ramp |
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| 185 | ! zwdramp = 1._wp / (rn_wdmin2 - rn_wdmin1) ! more general ramp |
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[11536] | 186 | ! ! inverse of baroclinic time step |
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[12489] | 187 | r1_Dt_b = 1._wp / rDt |
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[4292] | 188 | ! |
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[9023] | 189 | ll_init = ln_bt_av ! if no time averaging, then no specific restart |
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[4292] | 190 | ll_fw_start = .FALSE. |
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[9023] | 191 | ! ! time offset in steps for bdy data update |
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[12489] | 192 | IF( .NOT.ln_bt_fw ) THEN ; noffset = - nn_e |
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[6140] | 193 | ELSE ; noffset = 0 |
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| 194 | ENDIF |
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[4292] | 195 | ! |
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[9023] | 196 | IF( kt == nit000 ) THEN !* initialisation |
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[508] | 197 | ! |
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[358] | 198 | IF(lwp) WRITE(numout,*) |
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| 199 | IF(lwp) WRITE(numout,*) 'dyn_spg_ts : surface pressure gradient trend' |
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| 200 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~ free surface with time splitting' |
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[4354] | 201 | IF(lwp) WRITE(numout,*) |
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[1502] | 202 | ! |
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[12489] | 203 | IF( l_1st_euler ) ll_init=.TRUE. |
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[1502] | 204 | ! |
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[12489] | 205 | IF( ln_bt_fw .OR. l_1st_euler ) THEN |
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[6140] | 206 | ll_fw_start =.TRUE. |
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| 207 | noffset = 0 |
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[4292] | 208 | ELSE |
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[6140] | 209 | ll_fw_start =.FALSE. |
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[4292] | 210 | ENDIF |
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[11536] | 211 | ! ! Set averaging weights and cycle length: |
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[6140] | 212 | CALL ts_wgt( ln_bt_av, ll_fw_start, icycle, wgtbtp1, wgtbtp2 ) |
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[4292] | 213 | ! |
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[12489] | 214 | ELSEIF( kt == nit000 + 1 ) THEN !* initialisation 2nd time-step |
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| 215 | ! |
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| 216 | IF( .NOT.ln_bt_fw ) THEN |
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| 217 | ! If we did an Euler timestep on the first timestep we need to reset ll_fw_start |
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| 218 | ! and the averaging weights. We don't have an easy way of telling whether we did |
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| 219 | ! an Euler timestep on the first timestep (because l_1st_euler is reset to .false. |
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| 220 | ! at the end of the first timestep) so just do this in all cases. |
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| 221 | ll_fw_start = .FALSE. |
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| 222 | CALL ts_wgt( ln_bt_av, ll_fw_start, icycle, wgtbtp1, wgtbtp2 ) |
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| 223 | ENDIF |
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| 224 | ! |
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[4292] | 225 | ENDIF |
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| 226 | ! |
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[358] | 227 | ! ----------------------------------------------------------------------------- |
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| 228 | ! Phase 1 : Coupling between general trend and barotropic estimates (1st step) |
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| 229 | ! ----------------------------------------------------------------------------- |
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[1502] | 230 | ! |
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[4292] | 231 | ! |
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[11536] | 232 | ! != zu_frc = 1/H e3*d/dt(Ua) =! (Vertical mean of Ua, the 3D trends) |
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| 233 | ! ! --------------------------- ! |
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[14064] | 234 | #if defined key_qco |
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[14207] | 235 | zu_frc(:,:) = SUM( e3u_0(:,:,: ) * puu(:,:,:,Krhs) * umask(:,:,:), DIM=3 ) * r1_hu_0(:,:) |
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| 236 | zv_frc(:,:) = SUM( e3v_0(:,:,: ) * pvv(:,:,:,Krhs) * vmask(:,:,:), DIM=3 ) * r1_hv_0(:,:) |
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[14064] | 237 | #else |
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[14207] | 238 | zu_frc(:,:) = SUM( e3u(:,:,:,Kmm) * puu(:,:,:,Krhs) * umask(:,:,:), DIM=3 ) * r1_hu(:,:,Kmm) |
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| 239 | zv_frc(:,:) = SUM( e3v(:,:,:,Kmm) * pvv(:,:,:,Krhs) * vmask(:,:,:), DIM=3 ) * r1_hv(:,:,Kmm) |
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[14064] | 240 | #endif |
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[4292] | 241 | ! |
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[13237] | 242 | ! |
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[12377] | 243 | ! != U(Krhs) => baroclinic trend =! (remove its vertical mean) |
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| 244 | DO jk = 1, jpkm1 ! ----------------------------- ! |
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[14207] | 245 | puu(:,:,jk,Krhs) = ( puu(:,:,jk,Krhs) - zu_frc(:,:) ) * umask(:,:,jk) |
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| 246 | pvv(:,:,jk,Krhs) = ( pvv(:,:,jk,Krhs) - zv_frc(:,:) ) * vmask(:,:,jk) |
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[1502] | 247 | END DO |
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[7646] | 248 | |
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| 249 | !!gm Question here when removing the Vertically integrated trends, we remove the vertically integrated NL trends on momentum.... |
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| 250 | !!gm Is it correct to do so ? I think so... |
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| 251 | |
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[14064] | 252 | ! != remove 2D Coriolis trend =! |
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| 253 | ! ! -------------------------- ! |
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[9528] | 254 | ! |
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[12377] | 255 | IF( kt == nit000 .OR. .NOT. ln_linssh ) CALL dyn_cor_2D_init( Kmm ) ! Set zwz, the barotropic Coriolis force coefficient |
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[14064] | 256 | ! ! recompute zwz = f/depth at every time step for (.NOT.ln_linssh) as the water colomn height changes |
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[1502] | 257 | ! |
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[14225] | 258 | IF( .NOT. PRESENT(k_only_ADV) ) THEN !* remove the 2D Coriolis trend |
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| 259 | zhU(:,:) = puu_b(:,:,Kmm) * hu(:,:,Kmm) * e2u(:,:) ! now fluxes |
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| 260 | zhV(:,:) = pvv_b(:,:,Kmm) * hv(:,:,Kmm) * e1v(:,:) ! NB: FULL domain : put a value in last row and column |
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| 261 | ! |
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| 262 | CALL dyn_cor_2d( ht(:,:), hu(:,:,Kmm), hv(:,:,Kmm), puu_b(:,:,Kmm), pvv_b(:,:,Kmm), zhU, zhV, & ! <<== in |
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| 263 | & zu_trd, zv_trd ) ! ==>> out |
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| 264 | ! |
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| 265 | DO_2D( 0, 0, 0, 0 ) ! Remove coriolis term (and possibly spg) from barotropic trend |
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| 266 | zu_frc(ji,jj) = zu_frc(ji,jj) - zu_trd(ji,jj) * ssumask(ji,jj) |
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| 267 | zv_frc(ji,jj) = zv_frc(ji,jj) - zv_trd(ji,jj) * ssvmask(ji,jj) |
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| 268 | END_2D |
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| 269 | ENDIF |
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[11536] | 270 | ! |
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| 271 | ! != Add bottom stress contribution from baroclinic velocities =! |
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| 272 | ! ! ----------------------------------------------------------- ! |
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[14225] | 273 | IF( PRESENT(k_only_ADV) ) THEN !* only Advection in the RHS : provide the barotropic bottom drag coefficients |
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| 274 | DO_2D( 0, 0, 0, 0 ) |
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| 275 | zCdU_u(ji,jj) = r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) ) |
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| 276 | zCdU_v(ji,jj) = r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) ) |
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| 277 | END_2D |
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| 278 | ELSE !* remove baroclinic drag AND provide the barotropic drag coefficients |
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| 279 | CALL dyn_drg_init( Kbb, Kmm, puu, pvv, puu_b, pvv_b, zu_frc, zv_frc, zCdU_u, zCdU_v ) |
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| 280 | ENDIF |
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[14064] | 281 | ! |
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[11536] | 282 | ! != Add atmospheric pressure forcing =! |
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| 283 | ! ! ---------------------------------- ! |
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| 284 | IF( ln_apr_dyn ) THEN |
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| 285 | IF( ln_bt_fw ) THEN ! FORWARD integration: use kt+1/2 pressure (NOW+1/2) |
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[13295] | 286 | DO_2D( 0, 0, 0, 0 ) |
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[12377] | 287 | zu_frc(ji,jj) = zu_frc(ji,jj) + grav * ( ssh_ib (ji+1,jj ) - ssh_ib (ji,jj) ) * r1_e1u(ji,jj) |
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| 288 | zv_frc(ji,jj) = zv_frc(ji,jj) + grav * ( ssh_ib (ji ,jj+1) - ssh_ib (ji,jj) ) * r1_e2v(ji,jj) |
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| 289 | END_2D |
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[11536] | 290 | ELSE ! CENTRED integration: use kt-1/2 + kt+1/2 pressure (NOW) |
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| 291 | zztmp = grav * r1_2 |
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[13295] | 292 | DO_2D( 0, 0, 0, 0 ) |
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[12377] | 293 | zu_frc(ji,jj) = zu_frc(ji,jj) + zztmp * ( ssh_ib (ji+1,jj ) - ssh_ib (ji,jj) & |
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| 294 | & + ssh_ibb(ji+1,jj ) - ssh_ibb(ji,jj) ) * r1_e1u(ji,jj) |
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| 295 | zv_frc(ji,jj) = zv_frc(ji,jj) + zztmp * ( ssh_ib (ji ,jj+1) - ssh_ib (ji,jj) & |
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| 296 | & + ssh_ibb(ji ,jj+1) - ssh_ibb(ji,jj) ) * r1_e2v(ji,jj) |
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| 297 | END_2D |
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| 298 | ENDIF |
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[9019] | 299 | ENDIF |
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[11536] | 300 | ! |
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[14053] | 301 | ! != Add wind forcing =! |
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| 302 | ! ! ------------------ ! |
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| 303 | IF( ln_bt_fw ) THEN |
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[13295] | 304 | DO_2D( 0, 0, 0, 0 ) |
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[12489] | 305 | zu_frc(ji,jj) = zu_frc(ji,jj) + r1_rho0 * utau(ji,jj) * r1_hu(ji,jj,Kmm) |
---|
| 306 | zv_frc(ji,jj) = zv_frc(ji,jj) + r1_rho0 * vtau(ji,jj) * r1_hv(ji,jj,Kmm) |
---|
[12377] | 307 | END_2D |
---|
[2724] | 308 | ELSE |
---|
[12489] | 309 | zztmp = r1_rho0 * r1_2 |
---|
[13295] | 310 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 311 | zu_frc(ji,jj) = zu_frc(ji,jj) + zztmp * ( utau_b(ji,jj) + utau(ji,jj) ) * r1_hu(ji,jj,Kmm) |
---|
| 312 | zv_frc(ji,jj) = zv_frc(ji,jj) + zztmp * ( vtau_b(ji,jj) + vtau(ji,jj) ) * r1_hv(ji,jj,Kmm) |
---|
| 313 | END_2D |
---|
[4292] | 314 | ENDIF |
---|
| 315 | ! |
---|
[11536] | 316 | ! !----------------! |
---|
| 317 | ! !== sssh_frc ==! Right-Hand-Side of the barotropic ssh equation (over the FULL domain) |
---|
| 318 | ! !----------------! |
---|
| 319 | ! != Net water flux forcing applied to a water column =! |
---|
| 320 | ! ! --------------------------------------------------- ! |
---|
| 321 | IF (ln_bt_fw) THEN ! FORWARD integration: use kt+1/2 fluxes (NOW+1/2) |
---|
[12489] | 322 | zssh_frc(:,:) = r1_rho0 * ( emp(:,:) - rnf(:,:) + fwfisf_cav(:,:) + fwfisf_par(:,:) ) |
---|
[11536] | 323 | ELSE ! CENTRED integration: use kt-1/2 + kt+1/2 fluxes (NOW) |
---|
[12489] | 324 | zztmp = r1_rho0 * r1_2 |
---|
[14064] | 325 | zssh_frc(:,:) = zztmp * ( emp(:,:) + emp_b(:,:) & |
---|
| 326 | & - rnf(:,:) - rnf_b(:,:) & |
---|
| 327 | & + fwfisf_cav(:,:) + fwfisf_cav_b(:,:) & |
---|
| 328 | & + fwfisf_par(:,:) + fwfisf_par_b(:,:) ) |
---|
[4292] | 329 | ENDIF |
---|
[11536] | 330 | ! != Add Stokes drift divergence =! (if exist) |
---|
| 331 | IF( ln_sdw ) THEN ! ----------------------------- ! |
---|
[7753] | 332 | zssh_frc(:,:) = zssh_frc(:,:) + div_sd(:,:) |
---|
[7646] | 333 | ENDIF |
---|
| 334 | ! |
---|
[12377] | 335 | ! ! ice sheet coupling |
---|
| 336 | IF ( ln_isf .AND. ln_isfcpl ) THEN |
---|
| 337 | ! |
---|
| 338 | ! ice sheet coupling |
---|
| 339 | IF( ln_rstart .AND. kt == nit000 ) THEN |
---|
| 340 | zssh_frc(:,:) = zssh_frc(:,:) + risfcpl_ssh(:,:) |
---|
| 341 | END IF |
---|
| 342 | ! |
---|
| 343 | ! conservation option |
---|
| 344 | IF( ln_isfcpl_cons ) THEN |
---|
| 345 | zssh_frc(:,:) = zssh_frc(:,:) + risfcpl_cons_ssh(:,:) |
---|
| 346 | END IF |
---|
| 347 | ! |
---|
| 348 | END IF |
---|
| 349 | ! |
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[4292] | 350 | #if defined key_asminc |
---|
[11536] | 351 | ! != Add the IAU weighted SSH increment =! |
---|
| 352 | ! ! ------------------------------------ ! |
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[4292] | 353 | IF( lk_asminc .AND. ln_sshinc .AND. ln_asmiau ) THEN |
---|
[7753] | 354 | zssh_frc(:,:) = zssh_frc(:,:) - ssh_iau(:,:) |
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[4292] | 355 | ENDIF |
---|
| 356 | #endif |
---|
[11536] | 357 | ! != Fill boundary data arrays for AGRIF |
---|
[5656] | 358 | ! ! ------------------------------------ |
---|
[4486] | 359 | #if defined key_agrif |
---|
| 360 | IF( .NOT.Agrif_Root() ) CALL agrif_dta_ts( kt ) |
---|
| 361 | #endif |
---|
[4292] | 362 | ! |
---|
[358] | 363 | ! ----------------------------------------------------------------------- |
---|
[4292] | 364 | ! Phase 2 : Integration of the barotropic equations |
---|
[358] | 365 | ! ----------------------------------------------------------------------- |
---|
[1502] | 366 | ! |
---|
| 367 | ! ! ==================== ! |
---|
| 368 | ! ! Initialisations ! |
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[4292] | 369 | ! ! ==================== ! |
---|
[4370] | 370 | ! Initialize barotropic variables: |
---|
[4770] | 371 | IF( ll_init )THEN |
---|
[7753] | 372 | sshbb_e(:,:) = 0._wp |
---|
| 373 | ubb_e (:,:) = 0._wp |
---|
| 374 | vbb_e (:,:) = 0._wp |
---|
| 375 | sshb_e (:,:) = 0._wp |
---|
| 376 | ub_e (:,:) = 0._wp |
---|
| 377 | vb_e (:,:) = 0._wp |
---|
[4700] | 378 | ENDIF |
---|
| 379 | ! |
---|
[11536] | 380 | IF( ln_linssh ) THEN ! mid-step ocean depth is fixed (hup2_e=hu_n=hu_0) |
---|
[14053] | 381 | zhup2_e(:,:) = hu_0(:,:) |
---|
| 382 | zhvp2_e(:,:) = hv_0(:,:) |
---|
| 383 | zhtp2_e(:,:) = ht_0(:,:) |
---|
[11536] | 384 | ENDIF |
---|
| 385 | ! |
---|
[14053] | 386 | IF( ln_bt_fw ) THEN ! FORWARD integration: start from NOW fields |
---|
| 387 | sshn_e(:,:) = pssh (:,:,Kmm) |
---|
[12377] | 388 | un_e (:,:) = puu_b(:,:,Kmm) |
---|
| 389 | vn_e (:,:) = pvv_b(:,:,Kmm) |
---|
[7753] | 390 | ! |
---|
[12377] | 391 | hu_e (:,:) = hu(:,:,Kmm) |
---|
| 392 | hv_e (:,:) = hv(:,:,Kmm) |
---|
| 393 | hur_e (:,:) = r1_hu(:,:,Kmm) |
---|
| 394 | hvr_e (:,:) = r1_hv(:,:,Kmm) |
---|
[4370] | 395 | ELSE ! CENTRED integration: start from BEFORE fields |
---|
[14053] | 396 | sshn_e(:,:) = pssh (:,:,Kbb) |
---|
[12377] | 397 | un_e (:,:) = puu_b(:,:,Kbb) |
---|
| 398 | vn_e (:,:) = pvv_b(:,:,Kbb) |
---|
[7753] | 399 | ! |
---|
[12377] | 400 | hu_e (:,:) = hu(:,:,Kbb) |
---|
| 401 | hv_e (:,:) = hv(:,:,Kbb) |
---|
| 402 | hur_e (:,:) = r1_hu(:,:,Kbb) |
---|
| 403 | hvr_e (:,:) = r1_hv(:,:,Kbb) |
---|
[4292] | 404 | ENDIF |
---|
| 405 | ! |
---|
| 406 | ! Initialize sums: |
---|
[14053] | 407 | puu_b (:,:,Kaa) = 0._wp ! After barotropic velocities (or transport if flux form) |
---|
| 408 | pvv_b (:,:,Kaa) = 0._wp |
---|
[12377] | 409 | pssh (:,:,Kaa) = 0._wp ! Sum for after averaged sea level |
---|
[14053] | 410 | un_adv(:,:) = 0._wp ! Sum for now transport issued from ts loop |
---|
| 411 | vn_adv(:,:) = 0._wp |
---|
[9528] | 412 | ! |
---|
| 413 | IF( ln_wd_dl ) THEN |
---|
[9023] | 414 | zuwdmask(:,:) = 0._wp ! set to zero for definiteness (not sure this is necessary) |
---|
| 415 | zvwdmask(:,:) = 0._wp ! |
---|
[9528] | 416 | zuwdav2 (:,:) = 0._wp |
---|
| 417 | zvwdav2 (:,:) = 0._wp |
---|
[9023] | 418 | END IF |
---|
| 419 | |
---|
[9528] | 420 | ! ! ==================== ! |
---|
[4292] | 421 | DO jn = 1, icycle ! sub-time-step loop ! |
---|
[1502] | 422 | ! ! ==================== ! |
---|
[10425] | 423 | ! |
---|
| 424 | l_full_nf_update = jn == icycle ! false: disable full North fold update (performances) for jn = 1 to icycle-1 |
---|
[4292] | 425 | ! |
---|
[11536] | 426 | ! !== Update the forcing ==! (BDY and tides) |
---|
| 427 | ! |
---|
[12377] | 428 | IF( ln_bdy .AND. ln_tide ) CALL bdy_dta_tides( kt, kit=jn, pt_offset= REAL(noffset+1,wp) ) |
---|
| 429 | ! Update tide potential at the beginning of current time substep |
---|
| 430 | IF( ln_tide_pot .AND. ln_tide ) THEN |
---|
[12489] | 431 | zt0substep = REAL(nsec_day, wp) - 0.5_wp*rn_Dt + (jn + noffset - 1) * rn_Dt / REAL(nn_e, wp) |
---|
[12377] | 432 | CALL upd_tide(zt0substep, Kmm) |
---|
| 433 | END IF |
---|
[11536] | 434 | ! |
---|
| 435 | ! !== extrapolation at mid-step ==! (jn+1/2) |
---|
| 436 | ! |
---|
| 437 | ! !* Set extrapolation coefficients for predictor step: |
---|
[4292] | 438 | IF ((jn<3).AND.ll_init) THEN ! Forward |
---|
| 439 | za1 = 1._wp |
---|
| 440 | za2 = 0._wp |
---|
| 441 | za3 = 0._wp |
---|
| 442 | ELSE ! AB3-AM4 Coefficients: bet=0.281105 |
---|
| 443 | za1 = 1.781105_wp ! za1 = 3/2 + bet |
---|
| 444 | za2 = -1.06221_wp ! za2 = -(1/2 + 2*bet) |
---|
| 445 | za3 = 0.281105_wp ! za3 = bet |
---|
| 446 | ENDIF |
---|
[11536] | 447 | ! |
---|
| 448 | ! !* Extrapolate barotropic velocities at mid-step (jn+1/2) |
---|
| 449 | !-- m+1/2 m m-1 m-2 --! |
---|
| 450 | !-- u = (3/2+beta) u -(1/2+2beta) u + beta u --! |
---|
| 451 | !-------------------------------------------------------------------------! |
---|
[7753] | 452 | ua_e(:,:) = za1 * un_e(:,:) + za2 * ub_e(:,:) + za3 * ubb_e(:,:) |
---|
| 453 | va_e(:,:) = za1 * vn_e(:,:) + za2 * vb_e(:,:) + za3 * vbb_e(:,:) |
---|
[4292] | 454 | |
---|
[6140] | 455 | IF( .NOT.ln_linssh ) THEN !* Update ocean depth (variable volume case only) |
---|
[4292] | 456 | ! ! ------------------ |
---|
| 457 | ! Extrapolate Sea Level at step jit+0.5: |
---|
[11536] | 458 | !-- m+1/2 m m-1 m-2 --! |
---|
| 459 | !-- ssh = (3/2+beta) ssh -(1/2+2beta) ssh + beta ssh --! |
---|
| 460 | !--------------------------------------------------------------------------------! |
---|
[7753] | 461 | zsshp2_e(:,:) = za1 * sshn_e(:,:) + za2 * sshb_e(:,:) + za3 * sshbb_e(:,:) |
---|
[9023] | 462 | |
---|
[11536] | 463 | ! set wetting & drying mask at tracer points for this barotropic mid-step |
---|
| 464 | IF( ln_wd_dl ) CALL wad_tmsk( zsshp2_e, ztwdmask ) |
---|
[9528] | 465 | ! |
---|
[11536] | 466 | ! ! ocean t-depth at mid-step |
---|
| 467 | zhtp2_e(:,:) = ht_0(:,:) + zsshp2_e(:,:) |
---|
| 468 | ! |
---|
| 469 | ! ! ocean u- and v-depth at mid-step (separate DO-loops remove the need of a lbc_lnk) |
---|
[14053] | 470 | #if defined key_qcoTest_FluxForm |
---|
| 471 | ! ! 'key_qcoTest_FluxForm' : simple ssh average |
---|
[14215] | 472 | DO_2D( 1, 0, 1, 1 ) ! not jpi-column |
---|
[14053] | 473 | zhup2_e(ji,jj) = hu_0(ji,jj) + r1_2 * ( zsshp2_e(ji,jj) + zsshp2_e(ji+1,jj ) ) * ssumask(ji,jj) |
---|
| 474 | END_2D |
---|
[14215] | 475 | DO_2D( 1, 1, 1, 0 ) |
---|
[14053] | 476 | zhvp2_e(ji,jj) = hv_0(ji,jj) + r1_2 * ( zsshp2_e(ji,jj) + zsshp2_e(ji ,jj+1) ) * ssvmask(ji,jj) |
---|
| 477 | END_2D |
---|
| 478 | #else |
---|
| 479 | ! ! no 'key_qcoTest_FluxForm' : surface weighted ssh average |
---|
[14215] | 480 | DO_2D( 1, 0, 1, 1 ) ! not jpi-column |
---|
[12377] | 481 | zhup2_e(ji,jj) = hu_0(ji,jj) + r1_2 * r1_e1e2u(ji,jj) & |
---|
| 482 | & * ( e1e2t(ji ,jj) * zsshp2_e(ji ,jj) & |
---|
| 483 | & + e1e2t(ji+1,jj) * zsshp2_e(ji+1,jj) ) * ssumask(ji,jj) |
---|
| 484 | END_2D |
---|
[14215] | 485 | DO_2D( 1, 1, 1, 0 ) ! not jpj-row |
---|
[12377] | 486 | zhvp2_e(ji,jj) = hv_0(ji,jj) + r1_2 * r1_e1e2v(ji,jj) & |
---|
| 487 | & * ( e1e2t(ji,jj ) * zsshp2_e(ji,jj ) & |
---|
| 488 | & + e1e2t(ji,jj+1) * zsshp2_e(ji,jj+1) ) * ssvmask(ji,jj) |
---|
| 489 | END_2D |
---|
[14053] | 490 | #endif |
---|
[4292] | 491 | ! |
---|
| 492 | ENDIF |
---|
| 493 | ! |
---|
[11536] | 494 | ! !== after SSH ==! (jn+1) |
---|
| 495 | ! |
---|
| 496 | ! ! update (ua_e,va_e) to enforce volume conservation at open boundaries |
---|
| 497 | ! ! values of zhup2_e and zhvp2_e on the halo are not needed in bdy_vol2d |
---|
[10481] | 498 | IF( ln_bdy .AND. ln_vol ) CALL bdy_vol2d( kt, jn, ua_e, va_e, zhup2_e, zhvp2_e ) |
---|
[12377] | 499 | ! |
---|
[11536] | 500 | ! ! resulting flux at mid-step (not over the full domain) |
---|
| 501 | zhU(1:jpim1,1:jpj ) = e2u(1:jpim1,1:jpj ) * ua_e(1:jpim1,1:jpj ) * zhup2_e(1:jpim1,1:jpj ) ! not jpi-column |
---|
| 502 | zhV(1:jpi ,1:jpjm1) = e1v(1:jpi ,1:jpjm1) * va_e(1:jpi ,1:jpjm1) * zhvp2_e(1:jpi ,1:jpjm1) ! not jpj-row |
---|
[4486] | 503 | ! |
---|
| 504 | #if defined key_agrif |
---|
[6140] | 505 | ! Set fluxes during predictor step to ensure volume conservation |
---|
[12377] | 506 | IF( .NOT.Agrif_Root() .AND. ln_bt_fw ) CALL agrif_dyn_ts_flux( jn, zhU, zhV ) |
---|
[4486] | 507 | #endif |
---|
[12489] | 508 | IF( ln_wd_il ) CALL wad_lmt_bt(zhU, zhV, sshn_e, zssh_frc, rDt_e) !!gm wad_lmt_bt use of lbc_lnk on zhU, zhV |
---|
[9023] | 509 | |
---|
[11536] | 510 | IF( ln_wd_dl ) THEN ! un_e and vn_e are set to zero at faces where |
---|
| 511 | ! ! the direction of the flow is from dry cells |
---|
| 512 | CALL wad_Umsk( ztwdmask, zhU, zhV, un_e, vn_e, zuwdmask, zvwdmask ) ! not jpi colomn for U, not jpj row for V |
---|
[9528] | 513 | ! |
---|
| 514 | ENDIF |
---|
[11536] | 515 | ! |
---|
| 516 | ! |
---|
| 517 | ! Compute Sea Level at step jit+1 |
---|
| 518 | !-- m+1 m m+1/2 --! |
---|
| 519 | !-- ssh = ssh - delta_t' * [ frc + div( flux ) ] --! |
---|
| 520 | !-------------------------------------------------------------------------! |
---|
[13295] | 521 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 522 | zhdiv = ( zhU(ji,jj) - zhU(ji-1,jj) + zhV(ji,jj) - zhV(ji,jj-1) ) * r1_e1e2t(ji,jj) |
---|
[12489] | 523 | ssha_e(ji,jj) = ( sshn_e(ji,jj) - rDt_e * ( zssh_frc(ji,jj) + zhdiv ) ) * ssmask(ji,jj) |
---|
[12377] | 524 | END_2D |
---|
[11536] | 525 | ! |
---|
[14338] | 526 | CALL lbc_lnk( 'dynspg_ts', ssha_e, 'T', 1._wp, zhU, 'U', -1._wp, zhV, 'V', -1._wp ) |
---|
[13289] | 527 | ! |
---|
[13216] | 528 | ! Duplicate sea level across open boundaries (this is only cosmetic if linssh=T) |
---|
| 529 | IF( ln_bdy ) CALL bdy_ssh( ssha_e ) |
---|
| 530 | #if defined key_agrif |
---|
| 531 | IF( .NOT.Agrif_Root() ) CALL agrif_ssh_ts( jn ) |
---|
| 532 | #endif |
---|
[11536] | 533 | ! |
---|
| 534 | ! ! Sum over sub-time-steps to compute advective velocities |
---|
| 535 | za2 = wgtbtp2(jn) ! zhU, zhV hold fluxes extrapolated at jn+0.5 |
---|
| 536 | un_adv(:,:) = un_adv(:,:) + za2 * zhU(:,:) * r1_e2u(:,:) |
---|
| 537 | vn_adv(:,:) = vn_adv(:,:) + za2 * zhV(:,:) * r1_e1v(:,:) |
---|
| 538 | ! sum over sub-time-steps to decide which baroclinic velocities to set to zero (zuwdav2 is only used when ln_wd_dl_bc=True) |
---|
| 539 | IF ( ln_wd_dl_bc ) THEN |
---|
| 540 | zuwdav2(1:jpim1,1:jpj ) = zuwdav2(1:jpim1,1:jpj ) + za2 * zuwdmask(1:jpim1,1:jpj ) ! not jpi-column |
---|
| 541 | zvwdav2(1:jpi ,1:jpjm1) = zvwdav2(1:jpi ,1:jpjm1) + za2 * zvwdmask(1:jpi ,1:jpjm1) ! not jpj-row |
---|
| 542 | END IF |
---|
| 543 | ! |
---|
[4292] | 544 | ! |
---|
| 545 | ! Sea Surface Height at u-,v-points (vvl case only) |
---|
[14053] | 546 | IF( .NOT.ln_linssh ) THEN |
---|
| 547 | #if defined key_qcoTest_FluxForm |
---|
| 548 | ! ! 'key_qcoTest_FluxForm' : simple ssh average |
---|
[14215] | 549 | DO_2D( 1, 0, 1, 1 ) |
---|
[14053] | 550 | zsshu_a(ji,jj) = r1_2 * ( ssha_e(ji,jj) + ssha_e(ji+1,jj ) ) * ssumask(ji,jj) |
---|
| 551 | END_2D |
---|
[14215] | 552 | DO_2D( 1, 1, 1, 0 ) |
---|
[14053] | 553 | zsshv_a(ji,jj) = r1_2 * ( ssha_e(ji,jj) + ssha_e(ji ,jj+1) ) * ssvmask(ji,jj) |
---|
| 554 | END_2D |
---|
| 555 | #else |
---|
[13295] | 556 | DO_2D( 0, 0, 0, 0 ) |
---|
[14053] | 557 | zsshu_a(ji,jj) = r1_2 * r1_e1e2u(ji,jj) * ( e1e2t(ji ,jj ) * ssha_e(ji ,jj ) & |
---|
| 558 | & + e1e2t(ji+1,jj ) * ssha_e(ji+1,jj ) ) * ssumask(ji,jj) |
---|
| 559 | zsshv_a(ji,jj) = r1_2 * r1_e1e2v(ji,jj) * ( e1e2t(ji ,jj ) * ssha_e(ji ,jj ) & |
---|
| 560 | & + e1e2t(ji ,jj+1) * ssha_e(ji ,jj+1) ) * ssvmask(ji,jj) |
---|
[12377] | 561 | END_2D |
---|
[14053] | 562 | #endif |
---|
| 563 | ENDIF |
---|
[11536] | 564 | ! |
---|
| 565 | ! Half-step back interpolation of SSH for surface pressure computation at step jit+1/2 |
---|
| 566 | !-- m+1/2 m+1 m m-1 m-2 --! |
---|
| 567 | !-- ssh' = za0 * ssh + za1 * ssh + za2 * ssh + za3 * ssh --! |
---|
| 568 | !------------------------------------------------------------------------------------------! |
---|
| 569 | CALL ts_bck_interp( jn, ll_init, za0, za1, za2, za3 ) ! coeficients of the interpolation |
---|
[9528] | 570 | zsshp2_e(:,:) = za0 * ssha_e(:,:) + za1 * sshn_e (:,:) & |
---|
| 571 | & + za2 * sshb_e(:,:) + za3 * sshbb_e(:,:) |
---|
[1502] | 572 | ! |
---|
[11536] | 573 | ! ! Surface pressure gradient |
---|
| 574 | zldg = ( 1._wp - rn_scal_load ) * grav ! local factor |
---|
[13295] | 575 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 576 | zu_spg(ji,jj) = - zldg * ( zsshp2_e(ji+1,jj) - zsshp2_e(ji,jj) ) * r1_e1u(ji,jj) |
---|
| 577 | zv_spg(ji,jj) = - zldg * ( zsshp2_e(ji,jj+1) - zsshp2_e(ji,jj) ) * r1_e2v(ji,jj) |
---|
| 578 | END_2D |
---|
[11536] | 579 | IF( ln_wd_il ) THEN ! W/D : gravity filters applied on pressure gradient |
---|
| 580 | CALL wad_spg( zsshp2_e, zcpx, zcpy ) ! Calculating W/D gravity filters |
---|
| 581 | zu_spg(2:jpim1,2:jpjm1) = zu_spg(2:jpim1,2:jpjm1) * zcpx(2:jpim1,2:jpjm1) |
---|
| 582 | zv_spg(2:jpim1,2:jpjm1) = zv_spg(2:jpim1,2:jpjm1) * zcpy(2:jpim1,2:jpjm1) |
---|
[4292] | 583 | ENDIF |
---|
| 584 | ! |
---|
| 585 | ! Add Coriolis trend: |
---|
[6140] | 586 | ! zwz array below or triads normally depend on sea level with ln_linssh=F and should be updated |
---|
[4292] | 587 | ! at each time step. We however keep them constant here for optimization. |
---|
[11536] | 588 | ! Recall that zhU and zhV hold fluxes at jn+0.5 (extrapolated not backward interpolated) |
---|
[13237] | 589 | CALL dyn_cor_2d( zhtp2_e, zhup2_e, zhvp2_e, ua_e, va_e, zhU, zhV, zu_trd, zv_trd ) |
---|
[4292] | 590 | ! |
---|
| 591 | ! Add tidal astronomical forcing if defined |
---|
[7646] | 592 | IF ( ln_tide .AND. ln_tide_pot ) THEN |
---|
[13295] | 593 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 594 | zu_trd(ji,jj) = zu_trd(ji,jj) + grav * ( pot_astro(ji+1,jj) - pot_astro(ji,jj) ) * r1_e1u(ji,jj) |
---|
| 595 | zv_trd(ji,jj) = zv_trd(ji,jj) + grav * ( pot_astro(ji,jj+1) - pot_astro(ji,jj) ) * r1_e2v(ji,jj) |
---|
| 596 | END_2D |
---|
[4292] | 597 | ENDIF |
---|
| 598 | ! |
---|
[9023] | 599 | ! Add bottom stresses: |
---|
| 600 | !jth do implicitly instead |
---|
| 601 | IF ( .NOT. ll_wd ) THEN ! Revert to explicit for bit comparison tests in non wad runs |
---|
[13295] | 602 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 603 | zu_trd(ji,jj) = zu_trd(ji,jj) + zCdU_u(ji,jj) * un_e(ji,jj) * hur_e(ji,jj) |
---|
| 604 | zv_trd(ji,jj) = zv_trd(ji,jj) + zCdU_v(ji,jj) * vn_e(ji,jj) * hvr_e(ji,jj) |
---|
| 605 | END_2D |
---|
[11536] | 606 | ENDIF |
---|
[4292] | 607 | ! |
---|
| 608 | ! Set next velocities: |
---|
[11536] | 609 | ! Compute barotropic speeds at step jit+1 (h : total height of the water colomn) |
---|
| 610 | !-- VECTOR FORM |
---|
| 611 | !-- m+1 m / m+1/2 \ --! |
---|
| 612 | !-- u = u + delta_t' * \ (1-r)*g * grad_x( ssh') - f * k vect u + frc / --! |
---|
| 613 | !-- --! |
---|
| 614 | !-- FLUX FORM --! |
---|
| 615 | !-- m+1 __1__ / m m / m+1/2 m+1/2 m+1/2 n \ \ --! |
---|
| 616 | !-- u = m+1 | h * u + delta_t' * \ h * (1-r)*g * grad_x( ssh') - h * f * k vect u + h * frc / | --! |
---|
| 617 | !-- h \ / --! |
---|
| 618 | !------------------------------------------------------------------------------------------------------------------------! |
---|
[9023] | 619 | IF( ln_dynadv_vec .OR. ln_linssh ) THEN !* Vector form |
---|
[13295] | 620 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 621 | ua_e(ji,jj) = ( un_e(ji,jj) & |
---|
[12489] | 622 | & + rDt_e * ( zu_spg(ji,jj) & |
---|
[12377] | 623 | & + zu_trd(ji,jj) & |
---|
| 624 | & + zu_frc(ji,jj) ) & |
---|
| 625 | & ) * ssumask(ji,jj) |
---|
[358] | 626 | |
---|
[12377] | 627 | va_e(ji,jj) = ( vn_e(ji,jj) & |
---|
[12489] | 628 | & + rDt_e * ( zv_spg(ji,jj) & |
---|
[12377] | 629 | & + zv_trd(ji,jj) & |
---|
| 630 | & + zv_frc(ji,jj) ) & |
---|
| 631 | & ) * ssvmask(ji,jj) |
---|
| 632 | END_2D |
---|
[6140] | 633 | ! |
---|
[9023] | 634 | ELSE !* Flux form |
---|
[13295] | 635 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 636 | ! ! hu_e, hv_e hold depth at jn, zhup2_e, zhvp2_e hold extrapolated depth at jn+1/2 |
---|
| 637 | ! ! backward interpolated depth used in spg terms at jn+1/2 |
---|
[14053] | 638 | #if defined key_qcoTest_FluxForm |
---|
| 639 | ! ! 'key_qcoTest_FluxForm' : simple ssh average |
---|
| 640 | zhu_bck = hu_0(ji,jj) + r1_2 * ( zsshp2_e(ji,jj) + zsshp2_e(ji+1,jj ) ) * ssumask(ji,jj) |
---|
| 641 | zhv_bck = hv_0(ji,jj) + r1_2 * ( zsshp2_e(ji,jj) + zsshp2_e(ji ,jj+1) ) * ssvmask(ji,jj) |
---|
| 642 | #else |
---|
[12377] | 643 | zhu_bck = hu_0(ji,jj) + r1_2*r1_e1e2u(ji,jj) * ( e1e2t(ji ,jj) * zsshp2_e(ji ,jj) & |
---|
| 644 | & + e1e2t(ji+1,jj) * zsshp2_e(ji+1,jj) ) * ssumask(ji,jj) |
---|
| 645 | zhv_bck = hv_0(ji,jj) + r1_2*r1_e1e2v(ji,jj) * ( e1e2t(ji,jj ) * zsshp2_e(ji,jj ) & |
---|
| 646 | & + e1e2t(ji,jj+1) * zsshp2_e(ji,jj+1) ) * ssvmask(ji,jj) |
---|
[14053] | 647 | #endif |
---|
[12377] | 648 | ! ! inverse depth at jn+1 |
---|
| 649 | z1_hu = ssumask(ji,jj) / ( hu_0(ji,jj) + zsshu_a(ji,jj) + 1._wp - ssumask(ji,jj) ) |
---|
| 650 | z1_hv = ssvmask(ji,jj) / ( hv_0(ji,jj) + zsshv_a(ji,jj) + 1._wp - ssvmask(ji,jj) ) |
---|
| 651 | ! |
---|
| 652 | ua_e(ji,jj) = ( hu_e (ji,jj) * un_e (ji,jj) & |
---|
[12489] | 653 | & + rDt_e * ( zhu_bck * zu_spg (ji,jj) & ! |
---|
[12377] | 654 | & + zhup2_e(ji,jj) * zu_trd (ji,jj) & ! |
---|
| 655 | & + hu(ji,jj,Kmm) * zu_frc (ji,jj) ) ) * z1_hu |
---|
| 656 | ! |
---|
| 657 | va_e(ji,jj) = ( hv_e (ji,jj) * vn_e (ji,jj) & |
---|
[12489] | 658 | & + rDt_e * ( zhv_bck * zv_spg (ji,jj) & ! |
---|
[12377] | 659 | & + zhvp2_e(ji,jj) * zv_trd (ji,jj) & ! |
---|
| 660 | & + hv(ji,jj,Kmm) * zv_frc (ji,jj) ) ) * z1_hv |
---|
| 661 | END_2D |
---|
[4292] | 662 | ENDIF |
---|
[10272] | 663 | !jth implicit bottom friction: |
---|
| 664 | IF ( ll_wd ) THEN ! revert to explicit for bit comparison tests in non wad runs |
---|
[13295] | 665 | DO_2D( 0, 0, 0, 0 ) |
---|
[14053] | 666 | ua_e(ji,jj) = ua_e(ji,jj) / ( 1._wp - rDt_e * zCdU_u(ji,jj) * hur_e(ji,jj) ) |
---|
| 667 | va_e(ji,jj) = va_e(ji,jj) / ( 1._wp - rDt_e * zCdU_v(ji,jj) * hvr_e(ji,jj) ) |
---|
[12377] | 668 | END_2D |
---|
[10272] | 669 | ENDIF |
---|
[11536] | 670 | |
---|
[13216] | 671 | IF( .NOT.ln_linssh ) THEN !* Update ocean depth (variable volume case only) |
---|
[14053] | 672 | hu_e (2:jpim1,2:jpjm1) = hu_0(2:jpim1,2:jpjm1) + zsshu_a(2:jpim1,2:jpjm1) |
---|
| 673 | hur_e(2:jpim1,2:jpjm1) = ssumask(2:jpim1,2:jpjm1) / ( hu_e(2:jpim1,2:jpjm1) + 1._wp - ssumask(2:jpim1,2:jpjm1) ) |
---|
| 674 | hv_e (2:jpim1,2:jpjm1) = hv_0(2:jpim1,2:jpjm1) + zsshv_a(2:jpim1,2:jpjm1) |
---|
| 675 | hvr_e(2:jpim1,2:jpjm1) = ssvmask(2:jpim1,2:jpjm1) / ( hv_e(2:jpim1,2:jpjm1) + 1._wp - ssvmask(2:jpim1,2:jpjm1) ) |
---|
[13216] | 676 | ENDIF |
---|
| 677 | ! |
---|
| 678 | IF( .NOT.ln_linssh ) THEN !* Update ocean depth (variable volume case only) |
---|
[14338] | 679 | CALL lbc_lnk( 'dynspg_ts', ua_e , 'U', -1._wp, va_e , 'V', -1._wp & |
---|
[14417] | 680 | & , hu_e , 'U', 1._wp, hv_e , 'V', 1._wp & |
---|
| 681 | & , hur_e, 'U', 1._wp, hvr_e, 'V', 1._wp ) |
---|
[11536] | 682 | ELSE |
---|
[14338] | 683 | CALL lbc_lnk( 'dynspg_ts', ua_e , 'U', -1._wp, va_e , 'V', -1._wp ) |
---|
[1438] | 684 | ENDIF |
---|
[13289] | 685 | ! ! open boundaries |
---|
| 686 | IF( ln_bdy ) CALL bdy_dyn2d( jn, ua_e, va_e, un_e, vn_e, hur_e, hvr_e, ssha_e ) |
---|
| 687 | #if defined key_agrif |
---|
| 688 | IF( .NOT.Agrif_Root() ) CALL agrif_dyn_ts( jn ) ! Agrif |
---|
| 689 | #endif |
---|
[4292] | 690 | ! !* Swap |
---|
| 691 | ! ! ---- |
---|
[7753] | 692 | ubb_e (:,:) = ub_e (:,:) |
---|
| 693 | ub_e (:,:) = un_e (:,:) |
---|
| 694 | un_e (:,:) = ua_e (:,:) |
---|
| 695 | ! |
---|
| 696 | vbb_e (:,:) = vb_e (:,:) |
---|
| 697 | vb_e (:,:) = vn_e (:,:) |
---|
| 698 | vn_e (:,:) = va_e (:,:) |
---|
| 699 | ! |
---|
| 700 | sshbb_e(:,:) = sshb_e(:,:) |
---|
| 701 | sshb_e (:,:) = sshn_e(:,:) |
---|
| 702 | sshn_e (:,:) = ssha_e(:,:) |
---|
[4292] | 703 | |
---|
| 704 | ! !* Sum over whole bt loop |
---|
| 705 | ! ! ---------------------- |
---|
| 706 | za1 = wgtbtp1(jn) |
---|
[6140] | 707 | IF( ln_dynadv_vec .OR. ln_linssh ) THEN ! Sum velocities |
---|
[12377] | 708 | puu_b (:,:,Kaa) = puu_b (:,:,Kaa) + za1 * ua_e (:,:) |
---|
| 709 | pvv_b (:,:,Kaa) = pvv_b (:,:,Kaa) + za1 * va_e (:,:) |
---|
[9023] | 710 | ELSE ! Sum transports |
---|
| 711 | IF ( .NOT.ln_wd_dl ) THEN |
---|
[12377] | 712 | puu_b (:,:,Kaa) = puu_b (:,:,Kaa) + za1 * ua_e (:,:) * hu_e (:,:) |
---|
| 713 | pvv_b (:,:,Kaa) = pvv_b (:,:,Kaa) + za1 * va_e (:,:) * hv_e (:,:) |
---|
[9023] | 714 | ELSE |
---|
[12377] | 715 | puu_b (:,:,Kaa) = puu_b (:,:,Kaa) + za1 * ua_e (:,:) * hu_e (:,:) * zuwdmask(:,:) |
---|
| 716 | pvv_b (:,:,Kaa) = pvv_b (:,:,Kaa) + za1 * va_e (:,:) * hv_e (:,:) * zvwdmask(:,:) |
---|
[9023] | 717 | END IF |
---|
[4292] | 718 | ENDIF |
---|
[9023] | 719 | ! ! Sum sea level |
---|
[12377] | 720 | pssh(:,:,Kaa) = pssh(:,:,Kaa) + za1 * ssha_e(:,:) |
---|
[9023] | 721 | |
---|
[358] | 722 | ! ! ==================== ! |
---|
| 723 | END DO ! end loop ! |
---|
| 724 | ! ! ==================== ! |
---|
[1438] | 725 | ! ----------------------------------------------------------------------------- |
---|
[1502] | 726 | ! Phase 3. update the general trend with the barotropic trend |
---|
[1438] | 727 | ! ----------------------------------------------------------------------------- |
---|
[1502] | 728 | ! |
---|
[4292] | 729 | ! Set advection velocity correction: |
---|
[9023] | 730 | IF (ln_bt_fw) THEN |
---|
[12489] | 731 | IF( .NOT.( kt == nit000 .AND. l_1st_euler ) ) THEN |
---|
[13295] | 732 | DO_2D( 1, 1, 1, 1 ) |
---|
[12377] | 733 | zun_save = un_adv(ji,jj) |
---|
| 734 | zvn_save = vn_adv(ji,jj) |
---|
| 735 | ! ! apply the previously computed correction |
---|
[12489] | 736 | un_adv(ji,jj) = r1_2 * ( ub2_b(ji,jj) + zun_save - rn_atfp * un_bf(ji,jj) ) |
---|
| 737 | vn_adv(ji,jj) = r1_2 * ( vb2_b(ji,jj) + zvn_save - rn_atfp * vn_bf(ji,jj) ) |
---|
[12377] | 738 | ! ! Update corrective fluxes for next time step |
---|
[12489] | 739 | un_bf(ji,jj) = rn_atfp * un_bf(ji,jj) + ( zun_save - ub2_b(ji,jj) ) |
---|
| 740 | vn_bf(ji,jj) = rn_atfp * vn_bf(ji,jj) + ( zvn_save - vb2_b(ji,jj) ) |
---|
[12377] | 741 | ! ! Save integrated transport for next computation |
---|
| 742 | ub2_b(ji,jj) = zun_save |
---|
| 743 | vb2_b(ji,jj) = zvn_save |
---|
| 744 | END_2D |
---|
[9023] | 745 | ELSE |
---|
[11536] | 746 | un_bf(:,:) = 0._wp ! corrective fluxes for next time step set to zero |
---|
| 747 | vn_bf(:,:) = 0._wp |
---|
| 748 | ub2_b(:,:) = un_adv(:,:) ! Save integrated transport for next computation |
---|
| 749 | vb2_b(:,:) = vn_adv(:,:) |
---|
| 750 | END IF |
---|
[4292] | 751 | ENDIF |
---|
[9023] | 752 | |
---|
| 753 | |
---|
[4292] | 754 | ! |
---|
| 755 | ! Update barotropic trend: |
---|
[6140] | 756 | IF( ln_dynadv_vec .OR. ln_linssh ) THEN |
---|
[4292] | 757 | DO jk=1,jpkm1 |
---|
[12489] | 758 | puu(:,:,jk,Krhs) = puu(:,:,jk,Krhs) + ( puu_b(:,:,Kaa) - puu_b(:,:,Kbb) ) * r1_Dt_b |
---|
| 759 | pvv(:,:,jk,Krhs) = pvv(:,:,jk,Krhs) + ( pvv_b(:,:,Kaa) - pvv_b(:,:,Kbb) ) * r1_Dt_b |
---|
[4292] | 760 | END DO |
---|
| 761 | ELSE |
---|
[12377] | 762 | ! At this stage, pssh(:,:,:,Krhs) has been corrected: compute new depths at velocity points |
---|
[14053] | 763 | #if defined key_qcoTest_FluxForm |
---|
| 764 | ! ! 'key_qcoTest_FluxForm' : simple ssh average |
---|
[13295] | 765 | DO_2D( 1, 0, 1, 0 ) |
---|
[14053] | 766 | zsshu_a(ji,jj) = r1_2 * ( pssh(ji,jj,Kaa) + pssh(ji+1,jj ,Kaa) ) * ssumask(ji,jj) |
---|
| 767 | zsshv_a(ji,jj) = r1_2 * ( pssh(ji,jj,Kaa) + pssh(ji ,jj+1,Kaa) ) * ssvmask(ji,jj) |
---|
[12377] | 768 | END_2D |
---|
[14053] | 769 | #else |
---|
| 770 | DO_2D( 1, 0, 1, 0 ) |
---|
| 771 | zsshu_a(ji,jj) = r1_2 * r1_e1e2u(ji,jj) * ( e1e2t(ji ,jj) * pssh(ji ,jj,Kaa) & |
---|
| 772 | & + e1e2t(ji+1,jj) * pssh(ji+1,jj,Kaa) ) * ssumask(ji,jj) |
---|
| 773 | zsshv_a(ji,jj) = r1_2 * r1_e1e2v(ji,jj) * ( e1e2t(ji,jj ) * pssh(ji,jj ,Kaa) & |
---|
| 774 | & + e1e2t(ji,jj+1) * pssh(ji,jj+1,Kaa) ) * ssvmask(ji,jj) |
---|
| 775 | END_2D |
---|
| 776 | #endif |
---|
[14338] | 777 | CALL lbc_lnk( 'dynspg_ts', zsshu_a, 'U', 1._wp, zsshv_a, 'V', 1._wp ) ! Boundary conditions |
---|
[5930] | 778 | ! |
---|
[4292] | 779 | DO jk=1,jpkm1 |
---|
[14053] | 780 | puu(:,:,jk,Krhs) = puu(:,:,jk,Krhs) + r1_hu(:,:,Kmm) & |
---|
| 781 | & * ( puu_b(:,:,Kaa) - puu_b(:,:,Kbb) * hu(:,:,Kbb) ) * r1_Dt_b |
---|
| 782 | pvv(:,:,jk,Krhs) = pvv(:,:,jk,Krhs) + r1_hv(:,:,Kmm) & |
---|
| 783 | & * ( pvv_b(:,:,Kaa) - pvv_b(:,:,Kbb) * hv(:,:,Kbb) ) * r1_Dt_b |
---|
[4292] | 784 | END DO |
---|
| 785 | ! Save barotropic velocities not transport: |
---|
[12377] | 786 | puu_b(:,:,Kaa) = puu_b(:,:,Kaa) / ( hu_0(:,:) + zsshu_a(:,:) + 1._wp - ssumask(:,:) ) |
---|
| 787 | pvv_b(:,:,Kaa) = pvv_b(:,:,Kaa) / ( hv_0(:,:) + zsshv_a(:,:) + 1._wp - ssvmask(:,:) ) |
---|
[4292] | 788 | ENDIF |
---|
[9023] | 789 | |
---|
| 790 | |
---|
| 791 | ! Correct velocities so that the barotropic velocity equals (un_adv, vn_adv) (in all cases) |
---|
[4292] | 792 | DO jk = 1, jpkm1 |
---|
[12377] | 793 | puu(:,:,jk,Kmm) = ( puu(:,:,jk,Kmm) + un_adv(:,:)*r1_hu(:,:,Kmm) - puu_b(:,:,Kmm) ) * umask(:,:,jk) |
---|
| 794 | pvv(:,:,jk,Kmm) = ( pvv(:,:,jk,Kmm) + vn_adv(:,:)*r1_hv(:,:,Kmm) - pvv_b(:,:,Kmm) ) * vmask(:,:,jk) |
---|
[358] | 795 | END DO |
---|
[9023] | 796 | |
---|
| 797 | IF ( ln_wd_dl .and. ln_wd_dl_bc) THEN |
---|
| 798 | DO jk = 1, jpkm1 |
---|
[12377] | 799 | puu(:,:,jk,Kmm) = ( un_adv(:,:)*r1_hu(:,:,Kmm) & |
---|
| 800 | & + zuwdav2(:,:)*(puu(:,:,jk,Kmm) - un_adv(:,:)*r1_hu(:,:,Kmm)) ) * umask(:,:,jk) |
---|
| 801 | pvv(:,:,jk,Kmm) = ( vn_adv(:,:)*r1_hv(:,:,Kmm) & |
---|
| 802 | & + zvwdav2(:,:)*(pvv(:,:,jk,Kmm) - vn_adv(:,:)*r1_hv(:,:,Kmm)) ) * vmask(:,:,jk) |
---|
[9023] | 803 | END DO |
---|
| 804 | END IF |
---|
| 805 | |
---|
| 806 | |
---|
[12377] | 807 | CALL iom_put( "ubar", un_adv(:,:)*r1_hu(:,:,Kmm) ) ! barotropic i-current |
---|
| 808 | CALL iom_put( "vbar", vn_adv(:,:)*r1_hv(:,:,Kmm) ) ! barotropic i-current |
---|
[1502] | 809 | ! |
---|
[4486] | 810 | #if defined key_agrif |
---|
| 811 | ! Save time integrated fluxes during child grid integration |
---|
[5656] | 812 | ! (used to update coarse grid transports at next time step) |
---|
[4486] | 813 | ! |
---|
[6140] | 814 | IF( .NOT.Agrif_Root() .AND. ln_bt_fw ) THEN |
---|
| 815 | IF( Agrif_NbStepint() == 0 ) THEN |
---|
[7753] | 816 | ub2_i_b(:,:) = 0._wp |
---|
| 817 | vb2_i_b(:,:) = 0._wp |
---|
[4486] | 818 | END IF |
---|
| 819 | ! |
---|
| 820 | za1 = 1._wp / REAL(Agrif_rhot(), wp) |
---|
[7753] | 821 | ub2_i_b(:,:) = ub2_i_b(:,:) + za1 * ub2_b(:,:) |
---|
| 822 | vb2_i_b(:,:) = vb2_i_b(:,:) + za1 * vb2_b(:,:) |
---|
[4486] | 823 | ENDIF |
---|
| 824 | #endif |
---|
[1502] | 825 | ! !* write time-spliting arrays in the restart |
---|
[6140] | 826 | IF( lrst_oce .AND.ln_bt_fw ) CALL ts_rst( kt, 'WRITE' ) |
---|
[508] | 827 | ! |
---|
[9023] | 828 | IF( ln_wd_il ) DEALLOCATE( zcpx, zcpy ) |
---|
| 829 | IF( ln_wd_dl ) DEALLOCATE( ztwdmask, zuwdmask, zvwdmask, zuwdav2, zvwdav2 ) |
---|
[1662] | 830 | ! |
---|
[12377] | 831 | CALL iom_put( "baro_u" , puu_b(:,:,Kmm) ) ! Barotropic U Velocity |
---|
| 832 | CALL iom_put( "baro_v" , pvv_b(:,:,Kmm) ) ! Barotropic V Velocity |
---|
[2715] | 833 | ! |
---|
[508] | 834 | END SUBROUTINE dyn_spg_ts |
---|
| 835 | |
---|
[6140] | 836 | |
---|
[4292] | 837 | SUBROUTINE ts_wgt( ll_av, ll_fw, jpit, zwgt1, zwgt2) |
---|
| 838 | !!--------------------------------------------------------------------- |
---|
| 839 | !! *** ROUTINE ts_wgt *** |
---|
| 840 | !! |
---|
| 841 | !! ** Purpose : Set time-splitting weights for temporal averaging (or not) |
---|
| 842 | !!---------------------------------------------------------------------- |
---|
| 843 | LOGICAL, INTENT(in) :: ll_av ! temporal averaging=.true. |
---|
| 844 | LOGICAL, INTENT(in) :: ll_fw ! forward time splitting =.true. |
---|
| 845 | INTEGER, INTENT(inout) :: jpit ! cycle length |
---|
[12489] | 846 | REAL(wp), DIMENSION(3*nn_e), INTENT(inout) :: zwgt1, & ! Primary weights |
---|
[4292] | 847 | zwgt2 ! Secondary weights |
---|
| 848 | |
---|
| 849 | INTEGER :: jic, jn, ji ! temporary integers |
---|
| 850 | REAL(wp) :: za1, za2 |
---|
| 851 | !!---------------------------------------------------------------------- |
---|
[508] | 852 | |
---|
[4292] | 853 | zwgt1(:) = 0._wp |
---|
| 854 | zwgt2(:) = 0._wp |
---|
| 855 | |
---|
| 856 | ! Set time index when averaged value is requested |
---|
| 857 | IF (ll_fw) THEN |
---|
[12489] | 858 | jic = nn_e |
---|
[4292] | 859 | ELSE |
---|
[12489] | 860 | jic = 2 * nn_e |
---|
[4292] | 861 | ENDIF |
---|
| 862 | |
---|
| 863 | ! Set primary weights: |
---|
| 864 | IF (ll_av) THEN |
---|
| 865 | ! Define simple boxcar window for primary weights |
---|
[12489] | 866 | ! (width = nn_e, centered around jic) |
---|
[4292] | 867 | SELECT CASE ( nn_bt_flt ) |
---|
| 868 | CASE( 0 ) ! No averaging |
---|
| 869 | zwgt1(jic) = 1._wp |
---|
| 870 | jpit = jic |
---|
| 871 | |
---|
[12489] | 872 | CASE( 1 ) ! Boxcar, width = nn_e |
---|
| 873 | DO jn = 1, 3*nn_e |
---|
| 874 | za1 = ABS(float(jn-jic))/float(nn_e) |
---|
[4292] | 875 | IF (za1 < 0.5_wp) THEN |
---|
| 876 | zwgt1(jn) = 1._wp |
---|
| 877 | jpit = jn |
---|
| 878 | ENDIF |
---|
| 879 | ENDDO |
---|
| 880 | |
---|
[12489] | 881 | CASE( 2 ) ! Boxcar, width = 2 * nn_e |
---|
| 882 | DO jn = 1, 3*nn_e |
---|
| 883 | za1 = ABS(float(jn-jic))/float(nn_e) |
---|
[4292] | 884 | IF (za1 < 1._wp) THEN |
---|
| 885 | zwgt1(jn) = 1._wp |
---|
| 886 | jpit = jn |
---|
| 887 | ENDIF |
---|
| 888 | ENDDO |
---|
| 889 | CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for nn_bt_flt' ) |
---|
| 890 | END SELECT |
---|
| 891 | |
---|
| 892 | ELSE ! No time averaging |
---|
| 893 | zwgt1(jic) = 1._wp |
---|
| 894 | jpit = jic |
---|
| 895 | ENDIF |
---|
| 896 | |
---|
| 897 | ! Set secondary weights |
---|
| 898 | DO jn = 1, jpit |
---|
| 899 | DO ji = jn, jpit |
---|
| 900 | zwgt2(jn) = zwgt2(jn) + zwgt1(ji) |
---|
| 901 | END DO |
---|
| 902 | END DO |
---|
| 903 | |
---|
| 904 | ! Normalize weigths: |
---|
| 905 | za1 = 1._wp / SUM(zwgt1(1:jpit)) |
---|
| 906 | za2 = 1._wp / SUM(zwgt2(1:jpit)) |
---|
| 907 | DO jn = 1, jpit |
---|
| 908 | zwgt1(jn) = zwgt1(jn) * za1 |
---|
| 909 | zwgt2(jn) = zwgt2(jn) * za2 |
---|
| 910 | END DO |
---|
| 911 | ! |
---|
| 912 | END SUBROUTINE ts_wgt |
---|
| 913 | |
---|
[6140] | 914 | |
---|
[508] | 915 | SUBROUTINE ts_rst( kt, cdrw ) |
---|
| 916 | !!--------------------------------------------------------------------- |
---|
| 917 | !! *** ROUTINE ts_rst *** |
---|
| 918 | !! |
---|
| 919 | !! ** Purpose : Read or write time-splitting arrays in restart file |
---|
| 920 | !!---------------------------------------------------------------------- |
---|
[9528] | 921 | INTEGER , INTENT(in) :: kt ! ocean time-step |
---|
| 922 | CHARACTER(len=*), INTENT(in) :: cdrw ! "READ"/"WRITE" flag |
---|
[508] | 923 | !!---------------------------------------------------------------------- |
---|
| 924 | ! |
---|
[9506] | 925 | IF( TRIM(cdrw) == 'READ' ) THEN ! Read/initialise |
---|
| 926 | ! ! --------------- |
---|
[14053] | 927 | IF( ln_rstart .AND. ln_bt_fw .AND. .NOT.l_1st_euler ) THEN !* Read the restart file |
---|
[13970] | 928 | CALL iom_get( numror, jpdom_auto, 'ub2_b' , ub2_b (:,:), cd_type = 'U', psgn = -1._wp ) |
---|
| 929 | CALL iom_get( numror, jpdom_auto, 'vb2_b' , vb2_b (:,:), cd_type = 'V', psgn = -1._wp ) |
---|
| 930 | CALL iom_get( numror, jpdom_auto, 'un_bf' , un_bf (:,:), cd_type = 'U', psgn = -1._wp ) |
---|
| 931 | CALL iom_get( numror, jpdom_auto, 'vn_bf' , vn_bf (:,:), cd_type = 'V', psgn = -1._wp ) |
---|
[9506] | 932 | IF( .NOT.ln_bt_av ) THEN |
---|
[13970] | 933 | CALL iom_get( numror, jpdom_auto, 'sshbb_e' , sshbb_e(:,:), cd_type = 'T', psgn = 1._wp ) |
---|
| 934 | CALL iom_get( numror, jpdom_auto, 'ubb_e' , ubb_e(:,:), cd_type = 'U', psgn = -1._wp ) |
---|
| 935 | CALL iom_get( numror, jpdom_auto, 'vbb_e' , vbb_e(:,:), cd_type = 'V', psgn = -1._wp ) |
---|
| 936 | CALL iom_get( numror, jpdom_auto, 'sshb_e' , sshb_e(:,:), cd_type = 'T', psgn = 1._wp ) |
---|
| 937 | CALL iom_get( numror, jpdom_auto, 'ub_e' , ub_e(:,:), cd_type = 'U', psgn = -1._wp ) |
---|
| 938 | CALL iom_get( numror, jpdom_auto, 'vb_e' , vb_e(:,:), cd_type = 'V', psgn = -1._wp ) |
---|
[9506] | 939 | ENDIF |
---|
[4486] | 940 | #if defined key_agrif |
---|
[9506] | 941 | ! Read time integrated fluxes |
---|
| 942 | IF ( .NOT.Agrif_Root() ) THEN |
---|
[13970] | 943 | CALL iom_get( numror, jpdom_auto, 'ub2_i_b' , ub2_i_b(:,:), cd_type = 'U', psgn = -1._wp ) |
---|
| 944 | CALL iom_get( numror, jpdom_auto, 'vb2_i_b' , vb2_i_b(:,:), cd_type = 'V', psgn = -1._wp ) |
---|
[13546] | 945 | ELSE |
---|
| 946 | ub2_i_b(:,:) = 0._wp ; vb2_i_b(:,:) = 0._wp ! used in the 1st update of agrif |
---|
[9506] | 947 | ENDIF |
---|
| 948 | #endif |
---|
| 949 | ELSE !* Start from rest |
---|
| 950 | IF(lwp) WRITE(numout,*) |
---|
| 951 | IF(lwp) WRITE(numout,*) ' ==>>> start from rest: set barotropic values to 0' |
---|
[13546] | 952 | ub2_b (:,:) = 0._wp ; vb2_b (:,:) = 0._wp ! used in the 1st interpol of agrif |
---|
| 953 | un_adv (:,:) = 0._wp ; vn_adv (:,:) = 0._wp ! used in the 1st interpol of agrif |
---|
| 954 | un_bf (:,:) = 0._wp ; vn_bf (:,:) = 0._wp ! used in the 1st update of agrif |
---|
[9506] | 955 | #if defined key_agrif |
---|
[13546] | 956 | ub2_i_b(:,:) = 0._wp ; vb2_i_b(:,:) = 0._wp ! used in the 1st update of agrif |
---|
[9506] | 957 | #endif |
---|
[4486] | 958 | ENDIF |
---|
[9506] | 959 | ! |
---|
| 960 | ELSEIF( TRIM(cdrw) == 'WRITE' ) THEN ! Create restart file |
---|
| 961 | ! ! ------------------- |
---|
| 962 | IF(lwp) WRITE(numout,*) '---- ts_rst ----' |
---|
[13970] | 963 | CALL iom_rstput( kt, nitrst, numrow, 'ub2_b' , ub2_b (:,:) ) |
---|
| 964 | CALL iom_rstput( kt, nitrst, numrow, 'vb2_b' , vb2_b (:,:) ) |
---|
| 965 | CALL iom_rstput( kt, nitrst, numrow, 'un_bf' , un_bf (:,:) ) |
---|
| 966 | CALL iom_rstput( kt, nitrst, numrow, 'vn_bf' , vn_bf (:,:) ) |
---|
[4292] | 967 | ! |
---|
| 968 | IF (.NOT.ln_bt_av) THEN |
---|
[13970] | 969 | CALL iom_rstput( kt, nitrst, numrow, 'sshbb_e' , sshbb_e(:,:) ) |
---|
| 970 | CALL iom_rstput( kt, nitrst, numrow, 'ubb_e' , ubb_e(:,:) ) |
---|
| 971 | CALL iom_rstput( kt, nitrst, numrow, 'vbb_e' , vbb_e(:,:) ) |
---|
| 972 | CALL iom_rstput( kt, nitrst, numrow, 'sshb_e' , sshb_e(:,:) ) |
---|
| 973 | CALL iom_rstput( kt, nitrst, numrow, 'ub_e' , ub_e(:,:) ) |
---|
| 974 | CALL iom_rstput( kt, nitrst, numrow, 'vb_e' , vb_e(:,:) ) |
---|
[4292] | 975 | ENDIF |
---|
[4486] | 976 | #if defined key_agrif |
---|
| 977 | ! Save time integrated fluxes |
---|
| 978 | IF ( .NOT.Agrif_Root() ) THEN |
---|
[13970] | 979 | CALL iom_rstput( kt, nitrst, numrow, 'ub2_i_b' , ub2_i_b(:,:) ) |
---|
| 980 | CALL iom_rstput( kt, nitrst, numrow, 'vb2_i_b' , vb2_i_b(:,:) ) |
---|
[4486] | 981 | ENDIF |
---|
| 982 | #endif |
---|
[4292] | 983 | ENDIF |
---|
| 984 | ! |
---|
| 985 | END SUBROUTINE ts_rst |
---|
[2528] | 986 | |
---|
[6140] | 987 | |
---|
| 988 | SUBROUTINE dyn_spg_ts_init |
---|
[4292] | 989 | !!--------------------------------------------------------------------- |
---|
| 990 | !! *** ROUTINE dyn_spg_ts_init *** |
---|
| 991 | !! |
---|
| 992 | !! ** Purpose : Set time splitting options |
---|
| 993 | !!---------------------------------------------------------------------- |
---|
[6140] | 994 | INTEGER :: ji ,jj ! dummy loop indices |
---|
| 995 | REAL(wp) :: zxr2, zyr2, zcmax ! local scalar |
---|
[9019] | 996 | REAL(wp), DIMENSION(jpi,jpj) :: zcu |
---|
[4292] | 997 | !!---------------------------------------------------------------------- |
---|
[4370] | 998 | ! |
---|
[5930] | 999 | ! Max courant number for ext. grav. waves |
---|
[4370] | 1000 | ! |
---|
[13295] | 1001 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1002 | zxr2 = r1_e1t(ji,jj) * r1_e1t(ji,jj) |
---|
| 1003 | zyr2 = r1_e2t(ji,jj) * r1_e2t(ji,jj) |
---|
| 1004 | zcu(ji,jj) = SQRT( grav * MAX(ht_0(ji,jj),0._wp) * (zxr2 + zyr2) ) |
---|
| 1005 | END_2D |
---|
[5930] | 1006 | ! |
---|
[13286] | 1007 | zcmax = MAXVAL( zcu(Nis0:Nie0,Njs0:Nje0) ) |
---|
[10425] | 1008 | CALL mpp_max( 'dynspg_ts', zcmax ) |
---|
[2528] | 1009 | |
---|
[4370] | 1010 | ! Estimate number of iterations to satisfy a max courant number= rn_bt_cmax |
---|
[12489] | 1011 | IF( ln_bt_auto ) nn_e = CEILING( rn_Dt / rn_bt_cmax * zcmax) |
---|
[4292] | 1012 | |
---|
[12489] | 1013 | rDt_e = rn_Dt / REAL( nn_e , wp ) |
---|
| 1014 | zcmax = zcmax * rDt_e |
---|
[9023] | 1015 | ! Print results |
---|
[4292] | 1016 | IF(lwp) WRITE(numout,*) |
---|
[9169] | 1017 | IF(lwp) WRITE(numout,*) 'dyn_spg_ts_init : split-explicit free surface' |
---|
| 1018 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~~' |
---|
[5930] | 1019 | IF( ln_bt_auto ) THEN |
---|
[12489] | 1020 | IF(lwp) WRITE(numout,*) ' ln_ts_auto =.true. Automatically set nn_e ' |
---|
[4370] | 1021 | IF(lwp) WRITE(numout,*) ' Max. courant number allowed: ', rn_bt_cmax |
---|
[4292] | 1022 | ELSE |
---|
[12489] | 1023 | IF(lwp) WRITE(numout,*) ' ln_ts_auto=.false.: Use nn_e in namelist nn_e = ', nn_e |
---|
[358] | 1024 | ENDIF |
---|
[4292] | 1025 | |
---|
| 1026 | IF(ln_bt_av) THEN |
---|
[12489] | 1027 | IF(lwp) WRITE(numout,*) ' ln_bt_av =.true. ==> Time averaging over nn_e time steps is on ' |
---|
[4292] | 1028 | ELSE |
---|
[9169] | 1029 | IF(lwp) WRITE(numout,*) ' ln_bt_av =.false. => No time averaging of barotropic variables ' |
---|
[4292] | 1030 | ENDIF |
---|
[508] | 1031 | ! |
---|
[4292] | 1032 | ! |
---|
| 1033 | IF(ln_bt_fw) THEN |
---|
[4370] | 1034 | IF(lwp) WRITE(numout,*) ' ln_bt_fw=.true. => Forward integration of barotropic variables ' |
---|
[4292] | 1035 | ELSE |
---|
[4370] | 1036 | IF(lwp) WRITE(numout,*) ' ln_bt_fw =.false.=> Centred integration of barotropic variables ' |
---|
[4292] | 1037 | ENDIF |
---|
| 1038 | ! |
---|
[4486] | 1039 | #if defined key_agrif |
---|
| 1040 | ! Restrict the use of Agrif to the forward case only |
---|
[9023] | 1041 | !!! IF( .NOT.ln_bt_fw .AND. .NOT.Agrif_Root() ) CALL ctl_stop( 'AGRIF not implemented if ln_bt_fw=.FALSE.' ) |
---|
[4486] | 1042 | #endif |
---|
| 1043 | ! |
---|
[4370] | 1044 | IF(lwp) WRITE(numout,*) ' Time filter choice, nn_bt_flt: ', nn_bt_flt |
---|
[4292] | 1045 | SELECT CASE ( nn_bt_flt ) |
---|
[6140] | 1046 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' Dirac' |
---|
[12489] | 1047 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' Boxcar: width = nn_e' |
---|
| 1048 | CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' Boxcar: width = 2*nn_e' |
---|
[9169] | 1049 | CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for nn_bt_flt: should 0,1, or 2' ) |
---|
[4292] | 1050 | END SELECT |
---|
| 1051 | ! |
---|
[4370] | 1052 | IF(lwp) WRITE(numout,*) ' ' |
---|
[12489] | 1053 | IF(lwp) WRITE(numout,*) ' nn_e = ', nn_e |
---|
| 1054 | IF(lwp) WRITE(numout,*) ' Barotropic time step [s] is :', rDt_e |
---|
[4370] | 1055 | IF(lwp) WRITE(numout,*) ' Maximum Courant number is :', zcmax |
---|
| 1056 | ! |
---|
[9023] | 1057 | IF(lwp) WRITE(numout,*) ' Time diffusion parameter rn_bt_alpha: ', rn_bt_alpha |
---|
| 1058 | IF ((ln_bt_av.AND.nn_bt_flt/=0).AND.(rn_bt_alpha>0._wp)) THEN |
---|
| 1059 | CALL ctl_stop( 'dynspg_ts ERROR: if rn_bt_alpha > 0, remove temporal averaging' ) |
---|
| 1060 | ENDIF |
---|
| 1061 | ! |
---|
[6140] | 1062 | IF( .NOT.ln_bt_av .AND. .NOT.ln_bt_fw ) THEN |
---|
[4292] | 1063 | CALL ctl_stop( 'dynspg_ts ERROR: No time averaging => only forward integration is possible' ) |
---|
| 1064 | ENDIF |
---|
[6140] | 1065 | IF( zcmax>0.9_wp ) THEN |
---|
[12489] | 1066 | CALL ctl_stop( 'dynspg_ts ERROR: Maximum Courant number is greater than 0.9: Inc. nn_e !' ) |
---|
[4292] | 1067 | ENDIF |
---|
| 1068 | ! |
---|
[9124] | 1069 | ! ! Allocate time-splitting arrays |
---|
| 1070 | IF( dyn_spg_ts_alloc() /= 0 ) CALL ctl_stop('STOP', 'dyn_spg_init: failed to allocate dynspg_ts arrays' ) |
---|
| 1071 | ! |
---|
| 1072 | ! ! read restart when needed |
---|
[9506] | 1073 | CALL ts_rst( nit000, 'READ' ) |
---|
[9124] | 1074 | ! |
---|
[4292] | 1075 | END SUBROUTINE dyn_spg_ts_init |
---|
[508] | 1076 | |
---|
[11536] | 1077 | |
---|
[12377] | 1078 | SUBROUTINE dyn_cor_2D_init( Kmm ) |
---|
[11536] | 1079 | !!--------------------------------------------------------------------- |
---|
[12377] | 1080 | !! *** ROUTINE dyn_cor_2D_init *** |
---|
[11536] | 1081 | !! |
---|
| 1082 | !! ** Purpose : Set time splitting options |
---|
| 1083 | !! Set arrays to remove/compute coriolis trend. |
---|
| 1084 | !! Do it once during initialization if volume is fixed, else at each long time step. |
---|
| 1085 | !! Note that these arrays are also used during barotropic loop. These are however frozen |
---|
| 1086 | !! although they should be updated in the variable volume case. Not a big approximation. |
---|
| 1087 | !! To remove this approximation, copy lines below inside barotropic loop |
---|
[14053] | 1088 | !! and update depths at T- points (ht) at each barotropic time step |
---|
[11536] | 1089 | !! |
---|
| 1090 | !! Compute zwz = f / ( height of the water colomn ) |
---|
| 1091 | !!---------------------------------------------------------------------- |
---|
[12377] | 1092 | INTEGER, INTENT(in) :: Kmm ! Time index |
---|
[11536] | 1093 | INTEGER :: ji ,jj, jk ! dummy loop indices |
---|
| 1094 | REAL(wp) :: z1_ht |
---|
| 1095 | !!---------------------------------------------------------------------- |
---|
| 1096 | ! |
---|
| 1097 | SELECT CASE( nvor_scheme ) |
---|
[14053] | 1098 | CASE( np_EEN, np_ENE, np_ENS , np_MIX ) != schemes using the same e3f definition |
---|
| 1099 | SELECT CASE( nn_e3f_typ ) !* ff_f/e3 at F-point |
---|
[11536] | 1100 | CASE ( 0 ) ! original formulation (masked averaging of e3t divided by 4) |
---|
[14053] | 1101 | DO_2D( 0, 0, 0, 0 ) |
---|
| 1102 | zwz(ji,jj) = ( ht(ji,jj+1) + ht(ji+1,jj+1) & |
---|
| 1103 | & + ht(ji,jj ) + ht(ji+1,jj ) ) * 0.25_wp |
---|
[12377] | 1104 | IF( zwz(ji,jj) /= 0._wp ) zwz(ji,jj) = ff_f(ji,jj) / zwz(ji,jj) |
---|
| 1105 | END_2D |
---|
[11536] | 1106 | CASE ( 1 ) ! new formulation (masked averaging of e3t divided by the sum of mask) |
---|
[14053] | 1107 | DO_2D( 0, 0, 0, 0 ) |
---|
| 1108 | zwz(ji,jj) = ( ht(ji,jj+1) + ht(ji+1,jj+1) & |
---|
| 1109 | & + ht(ji,jj ) + ht(ji+1,jj ) ) & |
---|
| 1110 | & / ( MAX(ssmask(ji,jj+1) + ssmask(ji+1,jj+1) & |
---|
| 1111 | & + ssmask(ji,jj ) + ssmask(ji+1,jj ) , 1._wp ) ) |
---|
[12377] | 1112 | IF( zwz(ji,jj) /= 0._wp ) zwz(ji,jj) = ff_f(ji,jj) / zwz(ji,jj) |
---|
| 1113 | END_2D |
---|
[11536] | 1114 | END SELECT |
---|
| 1115 | CALL lbc_lnk( 'dynspg_ts', zwz, 'F', 1._wp ) |
---|
[14053] | 1116 | END SELECT |
---|
| 1117 | ! |
---|
| 1118 | SELECT CASE( nvor_scheme ) |
---|
| 1119 | CASE( np_EEN ) |
---|
[11536] | 1120 | ! |
---|
[14053] | 1121 | ftne(1,:) = 0._wp ; ftnw(1,:) = 0._wp ; ftse(1,:) = 0._wp ; ftsw(1,:) = 0._wp |
---|
[13295] | 1122 | DO_2D( 0, 1, 0, 1 ) |
---|
[12377] | 1123 | ftne(ji,jj) = zwz(ji-1,jj ) + zwz(ji ,jj ) + zwz(ji ,jj-1) |
---|
| 1124 | ftnw(ji,jj) = zwz(ji-1,jj-1) + zwz(ji-1,jj ) + zwz(ji ,jj ) |
---|
| 1125 | ftse(ji,jj) = zwz(ji ,jj ) + zwz(ji ,jj-1) + zwz(ji-1,jj-1) |
---|
| 1126 | ftsw(ji,jj) = zwz(ji ,jj-1) + zwz(ji-1,jj-1) + zwz(ji-1,jj ) |
---|
| 1127 | END_2D |
---|
[11536] | 1128 | ! |
---|
[14053] | 1129 | CASE( np_EET ) != EEN scheme using e3t energy conserving scheme |
---|
| 1130 | ftne(1,:) = 0._wp ; ftnw(1,:) = 0._wp ; ftse(1,:) = 0._wp ; ftsw(1,:) = 0._wp |
---|
[13295] | 1131 | DO_2D( 0, 1, 0, 1 ) |
---|
[12377] | 1132 | z1_ht = ssmask(ji,jj) / ( ht(ji,jj) + 1._wp - ssmask(ji,jj) ) |
---|
| 1133 | ftne(ji,jj) = ( ff_f(ji-1,jj ) + ff_f(ji ,jj ) + ff_f(ji ,jj-1) ) * z1_ht |
---|
| 1134 | ftnw(ji,jj) = ( ff_f(ji-1,jj-1) + ff_f(ji-1,jj ) + ff_f(ji ,jj ) ) * z1_ht |
---|
| 1135 | ftse(ji,jj) = ( ff_f(ji ,jj ) + ff_f(ji ,jj-1) + ff_f(ji-1,jj-1) ) * z1_ht |
---|
| 1136 | ftsw(ji,jj) = ( ff_f(ji ,jj-1) + ff_f(ji-1,jj-1) + ff_f(ji-1,jj ) ) * z1_ht |
---|
| 1137 | END_2D |
---|
[11536] | 1138 | ! |
---|
| 1139 | END SELECT |
---|
| 1140 | |
---|
| 1141 | END SUBROUTINE dyn_cor_2d_init |
---|
| 1142 | |
---|
| 1143 | |
---|
[13237] | 1144 | SUBROUTINE dyn_cor_2d( pht, phu, phv, punb, pvnb, zhU, zhV, zu_trd, zv_trd ) |
---|
[11536] | 1145 | !!--------------------------------------------------------------------- |
---|
| 1146 | !! *** ROUTINE dyn_cor_2d *** |
---|
| 1147 | !! |
---|
| 1148 | !! ** Purpose : Compute u and v coriolis trends |
---|
| 1149 | !!---------------------------------------------------------------------- |
---|
| 1150 | INTEGER :: ji ,jj ! dummy loop indices |
---|
| 1151 | REAL(wp) :: zx1, zx2, zy1, zy2, z1_hu, z1_hv ! - - |
---|
[13237] | 1152 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: pht, phu, phv, punb, pvnb, zhU, zhV |
---|
[11536] | 1153 | REAL(wp), DIMENSION(jpi,jpj), INTENT( out) :: zu_trd, zv_trd |
---|
| 1154 | !!---------------------------------------------------------------------- |
---|
| 1155 | SELECT CASE( nvor_scheme ) |
---|
| 1156 | CASE( np_ENT ) ! enstrophy conserving scheme (f-point) |
---|
[13295] | 1157 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1158 | z1_hu = ssumask(ji,jj) / ( phu(ji,jj) + 1._wp - ssumask(ji,jj) ) |
---|
| 1159 | z1_hv = ssvmask(ji,jj) / ( phv(ji,jj) + 1._wp - ssvmask(ji,jj) ) |
---|
| 1160 | zu_trd(ji,jj) = + r1_4 * r1_e1e2u(ji,jj) * z1_hu & |
---|
[13237] | 1161 | & * ( e1e2t(ji+1,jj)*pht(ji+1,jj)*ff_t(ji+1,jj) * ( pvnb(ji+1,jj) + pvnb(ji+1,jj-1) ) & |
---|
| 1162 | & + e1e2t(ji ,jj)*pht(ji ,jj)*ff_t(ji ,jj) * ( pvnb(ji ,jj) + pvnb(ji ,jj-1) ) ) |
---|
[12377] | 1163 | ! |
---|
| 1164 | zv_trd(ji,jj) = - r1_4 * r1_e1e2v(ji,jj) * z1_hv & |
---|
[13237] | 1165 | & * ( e1e2t(ji,jj+1)*pht(ji,jj+1)*ff_t(ji,jj+1) * ( punb(ji,jj+1) + punb(ji-1,jj+1) ) & |
---|
| 1166 | & + e1e2t(ji,jj )*pht(ji,jj )*ff_t(ji,jj ) * ( punb(ji,jj ) + punb(ji-1,jj ) ) ) |
---|
[12377] | 1167 | END_2D |
---|
[11536] | 1168 | ! |
---|
| 1169 | CASE( np_ENE , np_MIX ) ! energy conserving scheme (t-point) ENE or MIX |
---|
[13295] | 1170 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1171 | zy1 = ( zhV(ji,jj-1) + zhV(ji+1,jj-1) ) * r1_e1u(ji,jj) |
---|
| 1172 | zy2 = ( zhV(ji,jj ) + zhV(ji+1,jj ) ) * r1_e1u(ji,jj) |
---|
| 1173 | zx1 = ( zhU(ji-1,jj) + zhU(ji-1,jj+1) ) * r1_e2v(ji,jj) |
---|
| 1174 | zx2 = ( zhU(ji ,jj) + zhU(ji ,jj+1) ) * r1_e2v(ji,jj) |
---|
| 1175 | ! energy conserving formulation for planetary vorticity term |
---|
| 1176 | zu_trd(ji,jj) = r1_4 * ( zwz(ji ,jj-1) * zy1 + zwz(ji,jj) * zy2 ) |
---|
| 1177 | zv_trd(ji,jj) = - r1_4 * ( zwz(ji-1,jj ) * zx1 + zwz(ji,jj) * zx2 ) |
---|
| 1178 | END_2D |
---|
[11536] | 1179 | ! |
---|
| 1180 | CASE( np_ENS ) ! enstrophy conserving scheme (f-point) |
---|
[13295] | 1181 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1182 | zy1 = r1_8 * ( zhV(ji ,jj-1) + zhV(ji+1,jj-1) & |
---|
| 1183 | & + zhV(ji ,jj ) + zhV(ji+1,jj ) ) * r1_e1u(ji,jj) |
---|
| 1184 | zx1 = - r1_8 * ( zhU(ji-1,jj ) + zhU(ji-1,jj+1) & |
---|
| 1185 | & + zhU(ji ,jj ) + zhU(ji ,jj+1) ) * r1_e2v(ji,jj) |
---|
| 1186 | zu_trd(ji,jj) = zy1 * ( zwz(ji ,jj-1) + zwz(ji,jj) ) |
---|
| 1187 | zv_trd(ji,jj) = zx1 * ( zwz(ji-1,jj ) + zwz(ji,jj) ) |
---|
| 1188 | END_2D |
---|
[11536] | 1189 | ! |
---|
| 1190 | CASE( np_EET , np_EEN ) ! energy & enstrophy scheme (using e3t or e3f) |
---|
[13295] | 1191 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1192 | zu_trd(ji,jj) = + r1_12 * r1_e1u(ji,jj) * ( ftne(ji,jj ) * zhV(ji ,jj ) & |
---|
| 1193 | & + ftnw(ji+1,jj) * zhV(ji+1,jj ) & |
---|
| 1194 | & + ftse(ji,jj ) * zhV(ji ,jj-1) & |
---|
| 1195 | & + ftsw(ji+1,jj) * zhV(ji+1,jj-1) ) |
---|
| 1196 | zv_trd(ji,jj) = - r1_12 * r1_e2v(ji,jj) * ( ftsw(ji,jj+1) * zhU(ji-1,jj+1) & |
---|
| 1197 | & + ftse(ji,jj+1) * zhU(ji ,jj+1) & |
---|
| 1198 | & + ftnw(ji,jj ) * zhU(ji-1,jj ) & |
---|
| 1199 | & + ftne(ji,jj ) * zhU(ji ,jj ) ) |
---|
| 1200 | END_2D |
---|
[11536] | 1201 | ! |
---|
| 1202 | END SELECT |
---|
| 1203 | ! |
---|
| 1204 | END SUBROUTINE dyn_cor_2D |
---|
| 1205 | |
---|
| 1206 | |
---|
| 1207 | SUBROUTINE wad_tmsk( pssh, ptmsk ) |
---|
| 1208 | !!---------------------------------------------------------------------- |
---|
| 1209 | !! *** ROUTINE wad_lmt *** |
---|
| 1210 | !! |
---|
| 1211 | !! ** Purpose : set wetting & drying mask at tracer points |
---|
| 1212 | !! for the current barotropic sub-step |
---|
| 1213 | !! |
---|
| 1214 | !! ** Method : ??? |
---|
| 1215 | !! |
---|
| 1216 | !! ** Action : ptmsk : wetting & drying t-mask |
---|
| 1217 | !!---------------------------------------------------------------------- |
---|
| 1218 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: pssh ! |
---|
| 1219 | REAL(wp), DIMENSION(jpi,jpj), INTENT( out) :: ptmsk ! |
---|
| 1220 | ! |
---|
| 1221 | INTEGER :: ji, jj ! dummy loop indices |
---|
| 1222 | !!---------------------------------------------------------------------- |
---|
| 1223 | ! |
---|
| 1224 | IF( ln_wd_dl_rmp ) THEN |
---|
[13295] | 1225 | DO_2D( 1, 1, 1, 1 ) |
---|
[12377] | 1226 | IF ( pssh(ji,jj) + ht_0(ji,jj) > 2._wp * rn_wdmin1 ) THEN |
---|
| 1227 | ! IF ( pssh(ji,jj) + ht_0(ji,jj) > rn_wdmin2 ) THEN |
---|
| 1228 | ptmsk(ji,jj) = 1._wp |
---|
| 1229 | ELSEIF( pssh(ji,jj) + ht_0(ji,jj) > rn_wdmin1 ) THEN |
---|
| 1230 | ptmsk(ji,jj) = TANH( 50._wp*( ( pssh(ji,jj) + ht_0(ji,jj) - rn_wdmin1 )*r_rn_wdmin1) ) |
---|
| 1231 | ELSE |
---|
| 1232 | ptmsk(ji,jj) = 0._wp |
---|
| 1233 | ENDIF |
---|
| 1234 | END_2D |
---|
[11536] | 1235 | ELSE |
---|
[13295] | 1236 | DO_2D( 1, 1, 1, 1 ) |
---|
[12377] | 1237 | IF ( pssh(ji,jj) + ht_0(ji,jj) > rn_wdmin1 ) THEN ; ptmsk(ji,jj) = 1._wp |
---|
| 1238 | ELSE ; ptmsk(ji,jj) = 0._wp |
---|
| 1239 | ENDIF |
---|
| 1240 | END_2D |
---|
[11536] | 1241 | ENDIF |
---|
| 1242 | ! |
---|
| 1243 | END SUBROUTINE wad_tmsk |
---|
| 1244 | |
---|
| 1245 | |
---|
| 1246 | SUBROUTINE wad_Umsk( pTmsk, phU, phV, pu, pv, pUmsk, pVmsk ) |
---|
| 1247 | !!---------------------------------------------------------------------- |
---|
| 1248 | !! *** ROUTINE wad_lmt *** |
---|
| 1249 | !! |
---|
| 1250 | !! ** Purpose : set wetting & drying mask at tracer points |
---|
| 1251 | !! for the current barotropic sub-step |
---|
| 1252 | !! |
---|
| 1253 | !! ** Method : ??? |
---|
| 1254 | !! |
---|
| 1255 | !! ** Action : ptmsk : wetting & drying t-mask |
---|
| 1256 | !!---------------------------------------------------------------------- |
---|
| 1257 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: pTmsk ! W & D t-mask |
---|
| 1258 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: phU, phV, pu, pv ! ocean velocities and transports |
---|
| 1259 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pUmsk, pVmsk ! W & D u- and v-mask |
---|
| 1260 | ! |
---|
| 1261 | INTEGER :: ji, jj ! dummy loop indices |
---|
| 1262 | !!---------------------------------------------------------------------- |
---|
| 1263 | ! |
---|
[14215] | 1264 | DO_2D( 1, 0, 1, 1 ) ! not jpi-column |
---|
[12377] | 1265 | IF ( phU(ji,jj) > 0._wp ) THEN ; pUmsk(ji,jj) = pTmsk(ji ,jj) |
---|
| 1266 | ELSE ; pUmsk(ji,jj) = pTmsk(ji+1,jj) |
---|
| 1267 | ENDIF |
---|
| 1268 | phU(ji,jj) = pUmsk(ji,jj)*phU(ji,jj) |
---|
| 1269 | pu (ji,jj) = pUmsk(ji,jj)*pu (ji,jj) |
---|
| 1270 | END_2D |
---|
[11536] | 1271 | ! |
---|
[14215] | 1272 | DO_2D( 1, 1, 1, 0 ) ! not jpj-row |
---|
[12377] | 1273 | IF ( phV(ji,jj) > 0._wp ) THEN ; pVmsk(ji,jj) = pTmsk(ji,jj ) |
---|
| 1274 | ELSE ; pVmsk(ji,jj) = pTmsk(ji,jj+1) |
---|
| 1275 | ENDIF |
---|
| 1276 | phV(ji,jj) = pVmsk(ji,jj)*phV(ji,jj) |
---|
| 1277 | pv (ji,jj) = pVmsk(ji,jj)*pv (ji,jj) |
---|
| 1278 | END_2D |
---|
[11536] | 1279 | ! |
---|
| 1280 | END SUBROUTINE wad_Umsk |
---|
| 1281 | |
---|
| 1282 | |
---|
[12377] | 1283 | SUBROUTINE wad_spg( pshn, zcpx, zcpy ) |
---|
[11536] | 1284 | !!--------------------------------------------------------------------- |
---|
| 1285 | !! *** ROUTINE wad_sp *** |
---|
| 1286 | !! |
---|
| 1287 | !! ** Purpose : |
---|
| 1288 | !!---------------------------------------------------------------------- |
---|
| 1289 | INTEGER :: ji ,jj ! dummy loop indices |
---|
| 1290 | LOGICAL :: ll_tmp1, ll_tmp2 |
---|
[12377] | 1291 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: pshn |
---|
[11536] | 1292 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: zcpx, zcpy |
---|
| 1293 | !!---------------------------------------------------------------------- |
---|
[13295] | 1294 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1295 | ll_tmp1 = MIN( pshn(ji,jj) , pshn(ji+1,jj) ) > & |
---|
| 1296 | & MAX( -ht_0(ji,jj) , -ht_0(ji+1,jj) ) .AND. & |
---|
| 1297 | & MAX( pshn(ji,jj) + ht_0(ji,jj) , pshn(ji+1,jj) + ht_0(ji+1,jj) ) & |
---|
| 1298 | & > rn_wdmin1 + rn_wdmin2 |
---|
| 1299 | ll_tmp2 = ( ABS( pshn(ji+1,jj) - pshn(ji ,jj)) > 1.E-12 ).AND.( & |
---|
| 1300 | & MAX( pshn(ji,jj) , pshn(ji+1,jj) ) > & |
---|
| 1301 | & MAX( -ht_0(ji,jj) , -ht_0(ji+1,jj) ) + rn_wdmin1 + rn_wdmin2 ) |
---|
| 1302 | IF(ll_tmp1) THEN |
---|
| 1303 | zcpx(ji,jj) = 1.0_wp |
---|
| 1304 | ELSEIF(ll_tmp2) THEN |
---|
| 1305 | ! no worries about pshn(ji+1,jj) - pshn(ji ,jj) = 0, it won't happen ! here |
---|
| 1306 | zcpx(ji,jj) = ABS( (pshn(ji+1,jj) + ht_0(ji+1,jj) - pshn(ji,jj) - ht_0(ji,jj)) & |
---|
| 1307 | & / (pshn(ji+1,jj) - pshn(ji ,jj)) ) |
---|
| 1308 | zcpx(ji,jj) = max(min( zcpx(ji,jj) , 1.0_wp),0.0_wp) |
---|
| 1309 | ELSE |
---|
| 1310 | zcpx(ji,jj) = 0._wp |
---|
| 1311 | ENDIF |
---|
| 1312 | ! |
---|
| 1313 | ll_tmp1 = MIN( pshn(ji,jj) , pshn(ji,jj+1) ) > & |
---|
| 1314 | & MAX( -ht_0(ji,jj) , -ht_0(ji,jj+1) ) .AND. & |
---|
| 1315 | & MAX( pshn(ji,jj) + ht_0(ji,jj) , pshn(ji,jj+1) + ht_0(ji,jj+1) ) & |
---|
| 1316 | & > rn_wdmin1 + rn_wdmin2 |
---|
| 1317 | ll_tmp2 = ( ABS( pshn(ji,jj) - pshn(ji,jj+1)) > 1.E-12 ).AND.( & |
---|
| 1318 | & MAX( pshn(ji,jj) , pshn(ji,jj+1) ) > & |
---|
| 1319 | & MAX( -ht_0(ji,jj) , -ht_0(ji,jj+1) ) + rn_wdmin1 + rn_wdmin2 ) |
---|
| 1320 | |
---|
| 1321 | IF(ll_tmp1) THEN |
---|
| 1322 | zcpy(ji,jj) = 1.0_wp |
---|
| 1323 | ELSE IF(ll_tmp2) THEN |
---|
| 1324 | ! no worries about pshn(ji,jj+1) - pshn(ji,jj ) = 0, it won't happen ! here |
---|
| 1325 | zcpy(ji,jj) = ABS( (pshn(ji,jj+1) + ht_0(ji,jj+1) - pshn(ji,jj) - ht_0(ji,jj)) & |
---|
| 1326 | & / (pshn(ji,jj+1) - pshn(ji,jj )) ) |
---|
| 1327 | zcpy(ji,jj) = MAX( 0._wp , MIN( zcpy(ji,jj) , 1.0_wp ) ) |
---|
| 1328 | ELSE |
---|
| 1329 | zcpy(ji,jj) = 0._wp |
---|
| 1330 | ENDIF |
---|
| 1331 | END_2D |
---|
[11536] | 1332 | |
---|
| 1333 | END SUBROUTINE wad_spg |
---|
| 1334 | |
---|
| 1335 | |
---|
[12377] | 1336 | SUBROUTINE dyn_drg_init( Kbb, Kmm, puu, pvv, puu_b ,pvv_b, pu_RHSi, pv_RHSi, pCdU_u, pCdU_v ) |
---|
[11536] | 1337 | !!---------------------------------------------------------------------- |
---|
| 1338 | !! *** ROUTINE dyn_drg_init *** |
---|
| 1339 | !! |
---|
| 1340 | !! ** Purpose : - add the baroclinic top/bottom drag contribution to |
---|
| 1341 | !! the baroclinic part of the barotropic RHS |
---|
| 1342 | !! - compute the barotropic drag coefficients |
---|
| 1343 | !! |
---|
| 1344 | !! ** Method : computation done over the INNER domain only |
---|
| 1345 | !!---------------------------------------------------------------------- |
---|
[12377] | 1346 | INTEGER , INTENT(in ) :: Kbb, Kmm ! ocean time level indices |
---|
| 1347 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpt), INTENT(in ) :: puu, pvv ! ocean velocities and RHS of momentum equation |
---|
| 1348 | REAL(wp), DIMENSION(jpi,jpj,jpt) , INTENT(in ) :: puu_b, pvv_b ! barotropic velocities at main time levels |
---|
| 1349 | REAL(wp), DIMENSION(jpi,jpj) , INTENT(inout) :: pu_RHSi, pv_RHSi ! baroclinic part of the barotropic RHS |
---|
| 1350 | REAL(wp), DIMENSION(jpi,jpj) , INTENT( out) :: pCdU_u , pCdU_v ! barotropic drag coefficients |
---|
[11536] | 1351 | ! |
---|
| 1352 | INTEGER :: ji, jj ! dummy loop indices |
---|
| 1353 | INTEGER :: ikbu, ikbv, iktu, iktv |
---|
| 1354 | REAL(wp) :: zztmp |
---|
| 1355 | REAL(wp), DIMENSION(jpi,jpj) :: zu_i, zv_i |
---|
| 1356 | !!---------------------------------------------------------------------- |
---|
| 1357 | ! |
---|
| 1358 | ! !== Set the barotropic drag coef. ==! |
---|
| 1359 | ! |
---|
[13472] | 1360 | IF( ln_isfcav.OR.ln_drgice_imp ) THEN ! top+bottom friction (ocean cavities) |
---|
[11536] | 1361 | |
---|
[13295] | 1362 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1363 | pCdU_u(ji,jj) = r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) + rCdU_top(ji+1,jj)+rCdU_top(ji,jj) ) |
---|
| 1364 | pCdU_v(ji,jj) = r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) + rCdU_top(ji,jj+1)+rCdU_top(ji,jj) ) |
---|
| 1365 | END_2D |
---|
[11536] | 1366 | ELSE ! bottom friction only |
---|
[13295] | 1367 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1368 | pCdU_u(ji,jj) = r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) ) |
---|
| 1369 | pCdU_v(ji,jj) = r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) ) |
---|
| 1370 | END_2D |
---|
[11536] | 1371 | ENDIF |
---|
| 1372 | ! |
---|
| 1373 | ! !== BOTTOM stress contribution from baroclinic velocities ==! |
---|
| 1374 | ! |
---|
| 1375 | IF( ln_bt_fw ) THEN ! FORWARD integration: use NOW bottom baroclinic velocities |
---|
| 1376 | |
---|
[13295] | 1377 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1378 | ikbu = mbku(ji,jj) |
---|
| 1379 | ikbv = mbkv(ji,jj) |
---|
| 1380 | zu_i(ji,jj) = puu(ji,jj,ikbu,Kmm) - puu_b(ji,jj,Kmm) |
---|
| 1381 | zv_i(ji,jj) = pvv(ji,jj,ikbv,Kmm) - pvv_b(ji,jj,Kmm) |
---|
| 1382 | END_2D |
---|
[11536] | 1383 | ELSE ! CENTRED integration: use BEFORE bottom baroclinic velocities |
---|
| 1384 | |
---|
[13295] | 1385 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1386 | ikbu = mbku(ji,jj) |
---|
| 1387 | ikbv = mbkv(ji,jj) |
---|
| 1388 | zu_i(ji,jj) = puu(ji,jj,ikbu,Kbb) - puu_b(ji,jj,Kbb) |
---|
| 1389 | zv_i(ji,jj) = pvv(ji,jj,ikbv,Kbb) - pvv_b(ji,jj,Kbb) |
---|
| 1390 | END_2D |
---|
[11536] | 1391 | ENDIF |
---|
| 1392 | ! |
---|
| 1393 | IF( ln_wd_il ) THEN ! W/D : use the "clipped" bottom friction !!gm explain WHY, please ! |
---|
[12489] | 1394 | zztmp = -1._wp / rDt_e |
---|
[13295] | 1395 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1396 | pu_RHSi(ji,jj) = pu_RHSi(ji,jj) + zu_i(ji,jj) * wdrampu(ji,jj) * MAX( & |
---|
| 1397 | & r1_hu(ji,jj,Kmm) * r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) ) , zztmp ) |
---|
| 1398 | pv_RHSi(ji,jj) = pv_RHSi(ji,jj) + zv_i(ji,jj) * wdrampv(ji,jj) * MAX( & |
---|
| 1399 | & r1_hv(ji,jj,Kmm) * r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) ) , zztmp ) |
---|
| 1400 | END_2D |
---|
[11536] | 1401 | ELSE ! use "unclipped" drag (even if explicit friction is used in 3D calculation) |
---|
| 1402 | |
---|
[13295] | 1403 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1404 | pu_RHSi(ji,jj) = pu_RHSi(ji,jj) + r1_hu(ji,jj,Kmm) * r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) ) * zu_i(ji,jj) |
---|
| 1405 | pv_RHSi(ji,jj) = pv_RHSi(ji,jj) + r1_hv(ji,jj,Kmm) * r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) ) * zv_i(ji,jj) |
---|
| 1406 | END_2D |
---|
[11536] | 1407 | END IF |
---|
| 1408 | ! |
---|
| 1409 | ! !== TOP stress contribution from baroclinic velocities ==! (no W/D case) |
---|
| 1410 | ! |
---|
[13472] | 1411 | IF( ln_isfcav.OR.ln_drgice_imp ) THEN |
---|
[11536] | 1412 | ! |
---|
| 1413 | IF( ln_bt_fw ) THEN ! FORWARD integration: use NOW top baroclinic velocity |
---|
| 1414 | |
---|
[13295] | 1415 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1416 | iktu = miku(ji,jj) |
---|
| 1417 | iktv = mikv(ji,jj) |
---|
| 1418 | zu_i(ji,jj) = puu(ji,jj,iktu,Kmm) - puu_b(ji,jj,Kmm) |
---|
| 1419 | zv_i(ji,jj) = pvv(ji,jj,iktv,Kmm) - pvv_b(ji,jj,Kmm) |
---|
| 1420 | END_2D |
---|
[11536] | 1421 | ELSE ! CENTRED integration: use BEFORE top baroclinic velocity |
---|
| 1422 | |
---|
[13295] | 1423 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1424 | iktu = miku(ji,jj) |
---|
| 1425 | iktv = mikv(ji,jj) |
---|
| 1426 | zu_i(ji,jj) = puu(ji,jj,iktu,Kbb) - puu_b(ji,jj,Kbb) |
---|
| 1427 | zv_i(ji,jj) = pvv(ji,jj,iktv,Kbb) - pvv_b(ji,jj,Kbb) |
---|
| 1428 | END_2D |
---|
[11536] | 1429 | ENDIF |
---|
| 1430 | ! |
---|
| 1431 | ! ! use "unclipped" top drag (even if explicit friction is used in 3D calculation) |
---|
| 1432 | |
---|
[13295] | 1433 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 1434 | pu_RHSi(ji,jj) = pu_RHSi(ji,jj) + r1_hu(ji,jj,Kmm) * r1_2*( rCdU_top(ji+1,jj)+rCdU_top(ji,jj) ) * zu_i(ji,jj) |
---|
| 1435 | pv_RHSi(ji,jj) = pv_RHSi(ji,jj) + r1_hv(ji,jj,Kmm) * r1_2*( rCdU_top(ji,jj+1)+rCdU_top(ji,jj) ) * zv_i(ji,jj) |
---|
| 1436 | END_2D |
---|
[11536] | 1437 | ! |
---|
| 1438 | ENDIF |
---|
| 1439 | ! |
---|
| 1440 | END SUBROUTINE dyn_drg_init |
---|
| 1441 | |
---|
| 1442 | SUBROUTINE ts_bck_interp( jn, ll_init, & ! <== in |
---|
| 1443 | & za0, za1, za2, za3 ) ! ==> out |
---|
| 1444 | !!---------------------------------------------------------------------- |
---|
| 1445 | INTEGER ,INTENT(in ) :: jn ! index of sub time step |
---|
| 1446 | LOGICAL ,INTENT(in ) :: ll_init ! |
---|
| 1447 | REAL(wp),INTENT( out) :: za0, za1, za2, za3 ! Half-step back interpolation coefficient |
---|
| 1448 | ! |
---|
| 1449 | REAL(wp) :: zepsilon, zgamma ! - - |
---|
| 1450 | !!---------------------------------------------------------------------- |
---|
| 1451 | ! ! set Half-step back interpolation coefficient |
---|
| 1452 | IF ( jn==1 .AND. ll_init ) THEN !* Forward-backward |
---|
| 1453 | za0 = 1._wp |
---|
| 1454 | za1 = 0._wp |
---|
| 1455 | za2 = 0._wp |
---|
| 1456 | za3 = 0._wp |
---|
| 1457 | ELSEIF( jn==2 .AND. ll_init ) THEN !* AB2-AM3 Coefficients; bet=0 ; gam=-1/6 ; eps=1/12 |
---|
| 1458 | za0 = 1.0833333333333_wp ! za0 = 1-gam-eps |
---|
| 1459 | za1 =-0.1666666666666_wp ! za1 = gam |
---|
| 1460 | za2 = 0.0833333333333_wp ! za2 = eps |
---|
| 1461 | za3 = 0._wp |
---|
| 1462 | ELSE !* AB3-AM4 Coefficients; bet=0.281105 ; eps=0.013 ; gam=0.0880 |
---|
| 1463 | IF( rn_bt_alpha == 0._wp ) THEN ! Time diffusion |
---|
| 1464 | za0 = 0.614_wp ! za0 = 1/2 + gam + 2*eps |
---|
| 1465 | za1 = 0.285_wp ! za1 = 1/2 - 2*gam - 3*eps |
---|
| 1466 | za2 = 0.088_wp ! za2 = gam |
---|
| 1467 | za3 = 0.013_wp ! za3 = eps |
---|
| 1468 | ELSE ! no time diffusion |
---|
| 1469 | zepsilon = 0.00976186_wp - 0.13451357_wp * rn_bt_alpha |
---|
| 1470 | zgamma = 0.08344500_wp - 0.51358400_wp * rn_bt_alpha |
---|
| 1471 | za0 = 0.5_wp + zgamma + 2._wp * rn_bt_alpha + 2._wp * zepsilon |
---|
| 1472 | za1 = 1._wp - za0 - zgamma - zepsilon |
---|
| 1473 | za2 = zgamma |
---|
| 1474 | za3 = zepsilon |
---|
| 1475 | ENDIF |
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| 1476 | ENDIF |
---|
| 1477 | END SUBROUTINE ts_bck_interp |
---|
| 1478 | |
---|
| 1479 | |
---|
[358] | 1480 | !!====================================================================== |
---|
| 1481 | END MODULE dynspg_ts |
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