[358] | 1 | MODULE dynspg_ts |
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[9023] | 2 | |
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| 3 | !! Includes ROMS wd scheme with diagnostic outputs ; un and ua updates are commented out ! |
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| 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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[9019] | 33 | USE zdf_oce ! vertical physics: variables |
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| 34 | USE zdfdrg ! vertical physics: top/bottom drag coef. |
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[5120] | 35 | USE sbcisf ! ice shelf variable (fwfisf) |
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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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[4292] | 46 | USE sbctide ! tides |
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| 47 | USE updtide ! tide potential |
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[7646] | 48 | USE sbcwave ! surface wave |
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[9019] | 49 | USE diatmb ! Top,middle,bottom output |
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| 50 | #if defined key_agrif |
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[9570] | 51 | USE agrif_oce_interp ! agrif |
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[9124] | 52 | USE agrif_oce |
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[9019] | 53 | #endif |
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| 54 | #if defined key_asminc |
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| 55 | USE asminc ! Assimilation increment |
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| 56 | #endif |
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[6140] | 57 | ! |
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| 58 | USE in_out_manager ! I/O manager |
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[358] | 59 | USE lib_mpp ! distributed memory computing library |
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| 60 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 61 | USE prtctl ! Print control |
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[2715] | 62 | USE iom ! IOM library |
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[4292] | 63 | USE restart ! only for lrst_oce |
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[9023] | 64 | USE diatmb ! Top,middle,bottom output |
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[358] | 65 | |
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[11536] | 66 | USE iom ! to remove |
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| 67 | |
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[358] | 68 | IMPLICIT NONE |
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| 69 | PRIVATE |
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| 70 | |
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[9124] | 71 | PUBLIC dyn_spg_ts ! called by dyn_spg |
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| 72 | PUBLIC dyn_spg_ts_init ! - - dyn_spg_init |
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[358] | 73 | |
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[9019] | 74 | !! Time filtered arrays at baroclinic time step: |
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| 75 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: un_adv , vn_adv !: Advection vel. at "now" barocl. step |
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[9124] | 76 | ! |
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[9023] | 77 | INTEGER, SAVE :: icycle ! Number of barotropic sub-steps for each internal step nn_baro <= 2.5 nn_baro |
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| 78 | REAL(wp),SAVE :: rdtbt ! Barotropic time step |
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[9019] | 79 | ! |
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| 80 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:) :: wgtbtp1, wgtbtp2 ! 1st & 2nd weights used in time filtering of barotropic fields |
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[9124] | 81 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: zwz ! ff_f/h at F points |
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| 82 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ftnw, ftne ! triad of coriolis parameter |
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| 83 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: ftsw, ftse ! (only used with een vorticity scheme) |
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[4292] | 84 | |
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[9043] | 85 | REAL(wp) :: r1_12 = 1._wp / 12._wp ! local ratios |
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| 86 | REAL(wp) :: r1_8 = 0.125_wp ! |
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| 87 | REAL(wp) :: r1_4 = 0.25_wp ! |
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| 88 | REAL(wp) :: r1_2 = 0.5_wp ! |
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[508] | 89 | |
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[358] | 90 | !! * Substitutions |
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| 91 | # include "vectopt_loop_substitute.h90" |
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[2715] | 92 | !!---------------------------------------------------------------------- |
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[9598] | 93 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[5217] | 94 | !! $Id$ |
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[10068] | 95 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[2715] | 96 | !!---------------------------------------------------------------------- |
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[358] | 97 | CONTAINS |
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| 98 | |
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[2715] | 99 | INTEGER FUNCTION dyn_spg_ts_alloc() |
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| 100 | !!---------------------------------------------------------------------- |
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| 101 | !! *** routine dyn_spg_ts_alloc *** |
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| 102 | !!---------------------------------------------------------------------- |
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[6140] | 103 | INTEGER :: ierr(3) |
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[4292] | 104 | !!---------------------------------------------------------------------- |
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| 105 | ierr(:) = 0 |
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[6140] | 106 | ! |
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| 107 | ALLOCATE( wgtbtp1(3*nn_baro), wgtbtp2(3*nn_baro), zwz(jpi,jpj), STAT=ierr(1) ) |
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[9528] | 108 | IF( ln_dynvor_een .OR. ln_dynvor_eeT ) & |
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[11536] | 109 | & ALLOCATE( ftnw(jpi,jpj) , ftne(jpi,jpj) , ftsw(jpi,jpj) , ftse(jpi,jpj), STAT=ierr(2) ) |
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[6140] | 110 | ! |
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| 111 | ALLOCATE( un_adv(jpi,jpj), vn_adv(jpi,jpj) , STAT=ierr(3) ) |
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| 112 | ! |
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| 113 | dyn_spg_ts_alloc = MAXVAL( ierr(:) ) |
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| 114 | ! |
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[10425] | 115 | CALL mpp_sum( 'dynspg_ts', dyn_spg_ts_alloc ) |
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| 116 | IF( dyn_spg_ts_alloc /= 0 ) CALL ctl_stop( 'STOP', 'dyn_spg_ts_alloc: failed to allocate arrays' ) |
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[2715] | 117 | ! |
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| 118 | END FUNCTION dyn_spg_ts_alloc |
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| 119 | |
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[5836] | 120 | |
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[358] | 121 | SUBROUTINE dyn_spg_ts( kt ) |
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| 122 | !!---------------------------------------------------------------------- |
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| 123 | !! |
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[6140] | 124 | !! ** Purpose : - Compute the now trend due to the explicit time stepping |
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| 125 | !! of the quasi-linear barotropic system, and add it to the |
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| 126 | !! general momentum trend. |
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[358] | 127 | !! |
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[6140] | 128 | !! ** Method : - split-explicit schem (time splitting) : |
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[4374] | 129 | !! Barotropic variables are advanced from internal time steps |
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| 130 | !! "n" to "n+1" if ln_bt_fw=T |
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| 131 | !! or from |
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| 132 | !! "n-1" to "n+1" if ln_bt_fw=F |
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| 133 | !! thanks to a generalized forward-backward time stepping (see ref. below). |
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[358] | 134 | !! |
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[4374] | 135 | !! ** Action : |
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| 136 | !! -Update the filtered free surface at step "n+1" : ssha |
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| 137 | !! -Update filtered barotropic velocities at step "n+1" : ua_b, va_b |
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[9023] | 138 | !! -Compute barotropic advective fluxes at step "n" : un_adv, vn_adv |
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[4374] | 139 | !! These are used to advect tracers and are compliant with discrete |
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| 140 | !! continuity equation taken at the baroclinic time steps. This |
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| 141 | !! ensures tracers conservation. |
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[6140] | 142 | !! - (ua, va) momentum trend updated with barotropic component. |
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[358] | 143 | !! |
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[6140] | 144 | !! References : Shchepetkin and McWilliams, Ocean Modelling, 2005. |
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[358] | 145 | !!--------------------------------------------------------------------- |
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[1502] | 146 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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[2715] | 147 | ! |
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[9554] | 148 | INTEGER :: ji, jj, jk, jn ! dummy loop indices |
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[9019] | 149 | LOGICAL :: ll_fw_start ! =T : forward integration |
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[9554] | 150 | LOGICAL :: ll_init ! =T : special startup of 2d equations |
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[11536] | 151 | INTEGER :: noffset ! local integers : time offset for bdy update |
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| 152 | REAL(wp) :: r1_2dt_b, z1_hu, z1_hv ! local scalars |
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[9528] | 153 | REAL(wp) :: za0, za1, za2, za3 ! - - |
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[11536] | 154 | REAL(wp) :: zmdi, zztmp, zldg ! - - |
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| 155 | REAL(wp) :: zhu_bck, zhv_bck, zhdiv ! - - |
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| 156 | REAL(wp) :: zun_save, zvn_save ! - - |
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| 157 | REAL(wp), DIMENSION(jpi,jpj) :: zu_trd, zu_frc, zu_spg, zssh_frc |
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| 158 | REAL(wp), DIMENSION(jpi,jpj) :: zv_trd, zv_frc, zv_spg |
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| 159 | REAL(wp), DIMENSION(jpi,jpj) :: zsshu_a, zhup2_e, zhtp2_e |
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| 160 | REAL(wp), DIMENSION(jpi,jpj) :: zsshv_a, zhvp2_e, zsshp2_e |
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[9019] | 161 | REAL(wp), DIMENSION(jpi,jpj) :: zCdU_u, zCdU_v ! top/bottom stress at u- & v-points |
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[11536] | 162 | REAL(wp), DIMENSION(jpi,jpj) :: zhU, zhV ! fluxes |
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[3294] | 163 | ! |
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[9023] | 164 | REAL(wp) :: zwdramp ! local scalar - only used if ln_wd_dl = .True. |
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| 165 | |
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| 166 | INTEGER :: iwdg, jwdg, kwdg ! short-hand values for the indices of the output point |
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| 167 | |
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| 168 | REAL(wp) :: zepsilon, zgamma ! - - |
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[9019] | 169 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zcpx, zcpy ! Wetting/Dying gravity filter coef. |
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[9023] | 170 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: ztwdmask, zuwdmask, zvwdmask ! ROMS wetting and drying masks at t,u,v points |
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| 171 | REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: zuwdav2, zvwdav2 ! averages over the sub-steps of zuwdmask and zvwdmask |
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[358] | 172 | !!---------------------------------------------------------------------- |
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[3294] | 173 | ! |
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[9023] | 174 | IF( ln_wd_il ) ALLOCATE( zcpx(jpi,jpj), zcpy(jpi,jpj) ) |
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| 175 | ! !* Allocate temporary arrays |
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| 176 | 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] | 177 | ! |
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[6140] | 178 | zmdi=1.e+20 ! missing data indicator for masking |
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[9019] | 179 | ! |
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[9023] | 180 | zwdramp = r_rn_wdmin1 ! simplest ramp |
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| 181 | ! zwdramp = 1._wp / (rn_wdmin2 - rn_wdmin1) ! more general ramp |
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[11536] | 182 | ! ! inverse of baroclinic time step |
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| 183 | IF( kt == nit000 .AND. neuler == 0 ) THEN ; r1_2dt_b = 1._wp / ( rdt ) |
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| 184 | ELSE ; r1_2dt_b = 1._wp / ( 2._wp * rdt ) |
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[4292] | 185 | ENDIF |
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| 186 | ! |
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[9023] | 187 | ll_init = ln_bt_av ! if no time averaging, then no specific restart |
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[4292] | 188 | ll_fw_start = .FALSE. |
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[9023] | 189 | ! ! time offset in steps for bdy data update |
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[6140] | 190 | IF( .NOT.ln_bt_fw ) THEN ; noffset = - nn_baro |
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| 191 | ELSE ; noffset = 0 |
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| 192 | ENDIF |
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[4292] | 193 | ! |
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[9023] | 194 | IF( kt == nit000 ) THEN !* initialisation |
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[508] | 195 | ! |
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[358] | 196 | IF(lwp) WRITE(numout,*) |
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| 197 | IF(lwp) WRITE(numout,*) 'dyn_spg_ts : surface pressure gradient trend' |
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| 198 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~ free surface with time splitting' |
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[4354] | 199 | IF(lwp) WRITE(numout,*) |
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[1502] | 200 | ! |
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[6140] | 201 | IF( neuler == 0 ) ll_init=.TRUE. |
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[1502] | 202 | ! |
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[6140] | 203 | IF( ln_bt_fw .OR. neuler == 0 ) THEN |
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| 204 | ll_fw_start =.TRUE. |
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| 205 | noffset = 0 |
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[4292] | 206 | ELSE |
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[6140] | 207 | ll_fw_start =.FALSE. |
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[4292] | 208 | ENDIF |
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[11536] | 209 | ! ! Set averaging weights and cycle length: |
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[6140] | 210 | CALL ts_wgt( ln_bt_av, ll_fw_start, icycle, wgtbtp1, wgtbtp2 ) |
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[4292] | 211 | ! |
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| 212 | ENDIF |
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| 213 | ! |
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| 214 | ! If forward start at previous time step, and centered integration, |
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| 215 | ! then update averaging weights: |
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[5836] | 216 | IF (.NOT.ln_bt_fw .AND.( neuler==0 .AND. kt==nit000+1 ) ) THEN |
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[4292] | 217 | ll_fw_start=.FALSE. |
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[9019] | 218 | CALL ts_wgt( ln_bt_av, ll_fw_start, icycle, wgtbtp1, wgtbtp2 ) |
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[4292] | 219 | ENDIF |
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[11536] | 220 | ! |
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[4292] | 221 | |
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[358] | 222 | ! ----------------------------------------------------------------------------- |
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| 223 | ! Phase 1 : Coupling between general trend and barotropic estimates (1st step) |
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| 224 | ! ----------------------------------------------------------------------------- |
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[1502] | 225 | ! |
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[4292] | 226 | ! |
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[11536] | 227 | ! != zu_frc = 1/H e3*d/dt(Ua) =! (Vertical mean of Ua, the 3D trends) |
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| 228 | ! ! --------------------------- ! |
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| 229 | zu_frc(:,:) = SUM( e3u_n(:,:,:) * ua(:,:,:) * umask(:,:,:) , DIM=3 ) * r1_hu_n(:,:) |
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| 230 | zv_frc(:,:) = SUM( e3v_n(:,:,:) * va(:,:,:) * vmask(:,:,:) , DIM=3 ) * r1_hv_n(:,:) |
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[1502] | 231 | ! |
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[4292] | 232 | ! |
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[11536] | 233 | ! != Ua => baroclinic trend =! (remove its vertical mean) |
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| 234 | DO jk = 1, jpkm1 ! ------------------------ ! |
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| 235 | ua(:,:,jk) = ( ua(:,:,jk) - zu_frc(:,:) ) * umask(:,:,jk) |
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| 236 | va(:,:,jk) = ( va(:,:,jk) - zv_frc(:,:) ) * vmask(:,:,jk) |
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[1502] | 237 | END DO |
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[7646] | 238 | |
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| 239 | !!gm Question here when removing the Vertically integrated trends, we remove the vertically integrated NL trends on momentum.... |
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| 240 | !!gm Is it correct to do so ? I think so... |
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| 241 | |
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[11536] | 242 | ! != remove 2D Coriolis and pressure gradient trends =! |
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| 243 | ! ! ------------------------------------------------- ! |
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[9528] | 244 | ! |
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[11536] | 245 | IF( kt == nit000 .OR. .NOT. ln_linssh ) CALL dyn_cor_2D_init ! Set zwz, the barotropic Coriolis force coefficient |
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| 246 | ! ! recompute zwz = f/depth at every time step for (.NOT.ln_linssh) as the water colomn height changes |
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[1502] | 247 | ! |
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[11536] | 248 | ! !* 2D Coriolis trends |
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| 249 | zhU(:,:) = un_b(:,:) * hu_n(:,:) * e2u(:,:) ! now fluxes |
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| 250 | zhV(:,:) = vn_b(:,:) * hv_n(:,:) * e1v(:,:) ! NB: FULL domain : put a value in last row and column |
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| 251 | ! |
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| 252 | CALL dyn_cor_2d( hu_n, hv_n, un_b, vn_b, zhU, zhV, & ! <<== in |
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| 253 | & zu_trd, zv_trd ) ! ==>> out |
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| 254 | ! |
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| 255 | IF( .NOT.ln_linssh ) THEN !* surface pressure gradient (variable volume only) |
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[508] | 256 | ! |
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[11536] | 257 | IF( ln_wd_il ) THEN ! W/D : limiter applied to spgspg |
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| 258 | CALL wad_spg( sshn, zcpx, zcpy ) ! Calculating W/D gravity filters, zcpx and zcpy |
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[9528] | 259 | DO jj = 2, jpjm1 |
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[11536] | 260 | DO ji = 2, jpim1 ! SPG with the application of W/D gravity filters |
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[9528] | 261 | zu_trd(ji,jj) = zu_trd(ji,jj) - grav * ( sshn(ji+1,jj ) - sshn(ji ,jj ) ) & |
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| 262 | & * r1_e1u(ji,jj) * zcpx(ji,jj) * wdrampu(ji,jj) !jth |
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| 263 | zv_trd(ji,jj) = zv_trd(ji,jj) - grav * ( sshn(ji ,jj+1) - sshn(ji ,jj ) ) & |
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| 264 | & * r1_e2v(ji,jj) * zcpy(ji,jj) * wdrampv(ji,jj) !jth |
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| 265 | END DO |
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| 266 | END DO |
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[11536] | 267 | ELSE ! now suface pressure gradient |
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[9019] | 268 | DO jj = 2, jpjm1 |
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| 269 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 270 | zu_trd(ji,jj) = zu_trd(ji,jj) - grav * ( sshn(ji+1,jj ) - sshn(ji ,jj ) ) * r1_e1u(ji,jj) |
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| 271 | zv_trd(ji,jj) = zv_trd(ji,jj) - grav * ( sshn(ji ,jj+1) - sshn(ji ,jj ) ) * r1_e2v(ji,jj) |
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| 272 | END DO |
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| 273 | END DO |
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| 274 | ENDIF |
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| 275 | ! |
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[1502] | 276 | ENDIF |
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[9019] | 277 | ! |
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[4292] | 278 | DO jj = 2, jpjm1 ! Remove coriolis term (and possibly spg) from barotropic trend |
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[358] | 279 | DO ji = fs_2, fs_jpim1 |
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[6140] | 280 | zu_frc(ji,jj) = zu_frc(ji,jj) - zu_trd(ji,jj) * ssumask(ji,jj) |
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| 281 | zv_frc(ji,jj) = zv_frc(ji,jj) - zv_trd(ji,jj) * ssvmask(ji,jj) |
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[3294] | 282 | END DO |
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[4292] | 283 | END DO |
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| 284 | ! |
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[11536] | 285 | ! != Add bottom stress contribution from baroclinic velocities =! |
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| 286 | ! ! ----------------------------------------------------------- ! |
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| 287 | CALL dyn_drg_init( zu_frc, zv_frc, zCdU_u, zCdU_v ) ! also provide the barotropic drag coefficients |
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[1502] | 288 | ! |
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[11536] | 289 | ! != Add atmospheric pressure forcing =! |
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| 290 | ! ! ---------------------------------- ! |
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| 291 | IF( ln_apr_dyn ) THEN |
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| 292 | IF( ln_bt_fw ) THEN ! FORWARD integration: use kt+1/2 pressure (NOW+1/2) |
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| 293 | DO jj = 2, jpjm1 |
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[9019] | 294 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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[11536] | 295 | 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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| 296 | 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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[9019] | 297 | END DO |
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| 298 | END DO |
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[11536] | 299 | ELSE ! CENTRED integration: use kt-1/2 + kt+1/2 pressure (NOW) |
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| 300 | zztmp = grav * r1_2 |
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| 301 | DO jj = 2, jpjm1 |
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[9019] | 302 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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[11536] | 303 | zu_frc(ji,jj) = zu_frc(ji,jj) + zztmp * ( ssh_ib (ji+1,jj ) - ssh_ib (ji,jj) & |
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| 304 | & + ssh_ibb(ji+1,jj ) - ssh_ibb(ji,jj) ) * r1_e1u(ji,jj) |
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| 305 | zv_frc(ji,jj) = zv_frc(ji,jj) + zztmp * ( ssh_ib (ji ,jj+1) - ssh_ib (ji,jj) & |
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| 306 | & + ssh_ibb(ji ,jj+1) - ssh_ibb(ji,jj) ) * r1_e2v(ji,jj) |
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[9019] | 307 | END DO |
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| 308 | END DO |
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[11536] | 309 | ENDIF |
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[9019] | 310 | ENDIF |
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[11536] | 311 | ! |
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| 312 | ! != Add atmospheric pressure forcing =! |
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| 313 | ! ! ---------------------------------- ! |
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[9019] | 314 | IF( ln_bt_fw ) THEN ! Add wind forcing |
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| 315 | DO jj = 2, jpjm1 |
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| 316 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 317 | zu_frc(ji,jj) = zu_frc(ji,jj) + r1_rau0 * utau(ji,jj) * r1_hu_n(ji,jj) |
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| 318 | zv_frc(ji,jj) = zv_frc(ji,jj) + r1_rau0 * vtau(ji,jj) * r1_hv_n(ji,jj) |
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| 319 | END DO |
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| 320 | END DO |
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[2724] | 321 | ELSE |
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[9043] | 322 | zztmp = r1_rau0 * r1_2 |
---|
[9019] | 323 | DO jj = 2, jpjm1 |
---|
| 324 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 325 | zu_frc(ji,jj) = zu_frc(ji,jj) + zztmp * ( utau_b(ji,jj) + utau(ji,jj) ) * r1_hu_n(ji,jj) |
---|
| 326 | zv_frc(ji,jj) = zv_frc(ji,jj) + zztmp * ( vtau_b(ji,jj) + vtau(ji,jj) ) * r1_hv_n(ji,jj) |
---|
| 327 | END DO |
---|
| 328 | END DO |
---|
[4292] | 329 | ENDIF |
---|
| 330 | ! |
---|
[11536] | 331 | ! !----------------! |
---|
| 332 | ! !== sssh_frc ==! Right-Hand-Side of the barotropic ssh equation (over the FULL domain) |
---|
| 333 | ! !----------------! |
---|
| 334 | ! != Net water flux forcing applied to a water column =! |
---|
| 335 | ! ! --------------------------------------------------- ! |
---|
| 336 | IF (ln_bt_fw) THEN ! FORWARD integration: use kt+1/2 fluxes (NOW+1/2) |
---|
| 337 | zssh_frc(:,:) = r1_rau0 * ( emp(:,:) - rnf(:,:) + fwfisf(:,:) ) |
---|
| 338 | ELSE ! CENTRED integration: use kt-1/2 + kt+1/2 fluxes (NOW) |
---|
[9043] | 339 | zztmp = r1_rau0 * r1_2 |
---|
[11536] | 340 | zssh_frc(:,:) = zztmp * ( emp(:,:) + emp_b(:,:) - rnf(:,:) - rnf_b(:,:) + fwfisf(:,:) + fwfisf_b(:,:) ) |
---|
[4292] | 341 | ENDIF |
---|
[11536] | 342 | ! != Add Stokes drift divergence =! (if exist) |
---|
| 343 | IF( ln_sdw ) THEN ! ----------------------------- ! |
---|
[7753] | 344 | zssh_frc(:,:) = zssh_frc(:,:) + div_sd(:,:) |
---|
[7646] | 345 | ENDIF |
---|
| 346 | ! |
---|
[4292] | 347 | #if defined key_asminc |
---|
[11536] | 348 | ! != Add the IAU weighted SSH increment =! |
---|
| 349 | ! ! ------------------------------------ ! |
---|
[4292] | 350 | IF( lk_asminc .AND. ln_sshinc .AND. ln_asmiau ) THEN |
---|
[7753] | 351 | zssh_frc(:,:) = zssh_frc(:,:) - ssh_iau(:,:) |
---|
[4292] | 352 | ENDIF |
---|
| 353 | #endif |
---|
[11536] | 354 | ! != Fill boundary data arrays for AGRIF |
---|
[5656] | 355 | ! ! ------------------------------------ |
---|
[4486] | 356 | #if defined key_agrif |
---|
| 357 | IF( .NOT.Agrif_Root() ) CALL agrif_dta_ts( kt ) |
---|
| 358 | #endif |
---|
[4292] | 359 | ! |
---|
[358] | 360 | ! ----------------------------------------------------------------------- |
---|
[4292] | 361 | ! Phase 2 : Integration of the barotropic equations |
---|
[358] | 362 | ! ----------------------------------------------------------------------- |
---|
[1502] | 363 | ! |
---|
| 364 | ! ! ==================== ! |
---|
| 365 | ! ! Initialisations ! |
---|
[4292] | 366 | ! ! ==================== ! |
---|
[4370] | 367 | ! Initialize barotropic variables: |
---|
[4770] | 368 | IF( ll_init )THEN |
---|
[7753] | 369 | sshbb_e(:,:) = 0._wp |
---|
| 370 | ubb_e (:,:) = 0._wp |
---|
| 371 | vbb_e (:,:) = 0._wp |
---|
| 372 | sshb_e (:,:) = 0._wp |
---|
| 373 | ub_e (:,:) = 0._wp |
---|
| 374 | vb_e (:,:) = 0._wp |
---|
[4700] | 375 | ENDIF |
---|
| 376 | ! |
---|
[11536] | 377 | IF( ln_linssh ) THEN ! mid-step ocean depth is fixed (hup2_e=hu_n=hu_0) |
---|
| 378 | zhup2_e(:,:) = hu_n(:,:) |
---|
| 379 | zhvp2_e(:,:) = hv_n(:,:) |
---|
| 380 | zhtp2_e(:,:) = ht_n(:,:) |
---|
| 381 | ENDIF |
---|
| 382 | ! |
---|
[4370] | 383 | IF (ln_bt_fw) THEN ! FORWARD integration: start from NOW fields |
---|
[7753] | 384 | sshn_e(:,:) = sshn(:,:) |
---|
| 385 | un_e (:,:) = un_b(:,:) |
---|
| 386 | vn_e (:,:) = vn_b(:,:) |
---|
| 387 | ! |
---|
| 388 | hu_e (:,:) = hu_n(:,:) |
---|
| 389 | hv_e (:,:) = hv_n(:,:) |
---|
| 390 | hur_e (:,:) = r1_hu_n(:,:) |
---|
| 391 | hvr_e (:,:) = r1_hv_n(:,:) |
---|
[4370] | 392 | ELSE ! CENTRED integration: start from BEFORE fields |
---|
[7753] | 393 | sshn_e(:,:) = sshb(:,:) |
---|
| 394 | un_e (:,:) = ub_b(:,:) |
---|
| 395 | vn_e (:,:) = vb_b(:,:) |
---|
| 396 | ! |
---|
| 397 | hu_e (:,:) = hu_b(:,:) |
---|
| 398 | hv_e (:,:) = hv_b(:,:) |
---|
| 399 | hur_e (:,:) = r1_hu_b(:,:) |
---|
| 400 | hvr_e (:,:) = r1_hv_b(:,:) |
---|
[4292] | 401 | ENDIF |
---|
| 402 | ! |
---|
| 403 | ! Initialize sums: |
---|
[7753] | 404 | ua_b (:,:) = 0._wp ! After barotropic velocities (or transport if flux form) |
---|
| 405 | va_b (:,:) = 0._wp |
---|
| 406 | ssha (:,:) = 0._wp ! Sum for after averaged sea level |
---|
| 407 | un_adv(:,:) = 0._wp ! Sum for now transport issued from ts loop |
---|
| 408 | vn_adv(:,:) = 0._wp |
---|
[9528] | 409 | ! |
---|
| 410 | IF( ln_wd_dl ) THEN |
---|
[9023] | 411 | zuwdmask(:,:) = 0._wp ! set to zero for definiteness (not sure this is necessary) |
---|
| 412 | zvwdmask(:,:) = 0._wp ! |
---|
[9528] | 413 | zuwdav2 (:,:) = 0._wp |
---|
| 414 | zvwdav2 (:,:) = 0._wp |
---|
[9023] | 415 | END IF |
---|
| 416 | |
---|
[9528] | 417 | ! ! ==================== ! |
---|
[4292] | 418 | DO jn = 1, icycle ! sub-time-step loop ! |
---|
[1502] | 419 | ! ! ==================== ! |
---|
[10425] | 420 | ! |
---|
| 421 | l_full_nf_update = jn == icycle ! false: disable full North fold update (performances) for jn = 1 to icycle-1 |
---|
[4292] | 422 | ! |
---|
[11536] | 423 | ! !== Update the forcing ==! (BDY and tides) |
---|
| 424 | ! |
---|
| 425 | IF( ln_bdy .AND. ln_tide ) CALL bdy_dta_tides( kt, kit=jn, kt_offset= noffset+1 ) |
---|
| 426 | IF( ln_tide_pot .AND. ln_tide ) CALL upd_tide ( kt, kit=jn, kt_offset= noffset ) |
---|
| 427 | ! |
---|
| 428 | ! !== extrapolation at mid-step ==! (jn+1/2) |
---|
| 429 | ! |
---|
| 430 | ! !* Set extrapolation coefficients for predictor step: |
---|
[4292] | 431 | IF ((jn<3).AND.ll_init) THEN ! Forward |
---|
| 432 | za1 = 1._wp |
---|
| 433 | za2 = 0._wp |
---|
| 434 | za3 = 0._wp |
---|
| 435 | ELSE ! AB3-AM4 Coefficients: bet=0.281105 |
---|
| 436 | za1 = 1.781105_wp ! za1 = 3/2 + bet |
---|
| 437 | za2 = -1.06221_wp ! za2 = -(1/2 + 2*bet) |
---|
| 438 | za3 = 0.281105_wp ! za3 = bet |
---|
| 439 | ENDIF |
---|
[11536] | 440 | ! |
---|
| 441 | ! !* Extrapolate barotropic velocities at mid-step (jn+1/2) |
---|
| 442 | !-- m+1/2 m m-1 m-2 --! |
---|
| 443 | !-- u = (3/2+beta) u -(1/2+2beta) u + beta u --! |
---|
| 444 | !-------------------------------------------------------------------------! |
---|
[7753] | 445 | ua_e(:,:) = za1 * un_e(:,:) + za2 * ub_e(:,:) + za3 * ubb_e(:,:) |
---|
| 446 | va_e(:,:) = za1 * vn_e(:,:) + za2 * vb_e(:,:) + za3 * vbb_e(:,:) |
---|
[4292] | 447 | |
---|
[6140] | 448 | IF( .NOT.ln_linssh ) THEN !* Update ocean depth (variable volume case only) |
---|
[4292] | 449 | ! ! ------------------ |
---|
| 450 | ! Extrapolate Sea Level at step jit+0.5: |
---|
[11536] | 451 | !-- m+1/2 m m-1 m-2 --! |
---|
| 452 | !-- ssh = (3/2+beta) ssh -(1/2+2beta) ssh + beta ssh --! |
---|
| 453 | !--------------------------------------------------------------------------------! |
---|
[7753] | 454 | zsshp2_e(:,:) = za1 * sshn_e(:,:) + za2 * sshb_e(:,:) + za3 * sshbb_e(:,:) |
---|
[9023] | 455 | |
---|
[11536] | 456 | ! set wetting & drying mask at tracer points for this barotropic mid-step |
---|
| 457 | IF( ln_wd_dl ) CALL wad_tmsk( zsshp2_e, ztwdmask ) |
---|
[9528] | 458 | ! |
---|
[11536] | 459 | ! ! ocean t-depth at mid-step |
---|
| 460 | zhtp2_e(:,:) = ht_0(:,:) + zsshp2_e(:,:) |
---|
| 461 | ! |
---|
| 462 | ! ! ocean u- and v-depth at mid-step (separate DO-loops remove the need of a lbc_lnk) |
---|
| 463 | DO jj = 1, jpj |
---|
| 464 | DO ji = 1, jpim1 ! not jpi-column |
---|
| 465 | zhup2_e(ji,jj) = hu_0(ji,jj) + r1_2 * r1_e1e2u(ji,jj) & |
---|
| 466 | & * ( e1e2t(ji ,jj) * zsshp2_e(ji ,jj) & |
---|
| 467 | & + e1e2t(ji+1,jj) * zsshp2_e(ji+1,jj) ) * ssumask(ji,jj) |
---|
[4292] | 468 | END DO |
---|
| 469 | END DO |
---|
[11536] | 470 | DO jj = 1, jpjm1 ! not jpj-row |
---|
| 471 | DO ji = 1, jpi |
---|
| 472 | zhvp2_e(ji,jj) = hv_0(ji,jj) + r1_2 * r1_e1e2v(ji,jj) & |
---|
| 473 | & * ( e1e2t(ji,jj ) * zsshp2_e(ji,jj ) & |
---|
| 474 | & + e1e2t(ji,jj+1) * zsshp2_e(ji,jj+1) ) * ssvmask(ji,jj) |
---|
| 475 | END DO |
---|
| 476 | END DO |
---|
[4292] | 477 | ! |
---|
| 478 | ENDIF |
---|
| 479 | ! |
---|
[11536] | 480 | ! !== after SSH ==! (jn+1) |
---|
| 481 | ! |
---|
| 482 | ! ! update (ua_e,va_e) to enforce volume conservation at open boundaries |
---|
| 483 | ! ! values of zhup2_e and zhvp2_e on the halo are not needed in bdy_vol2d |
---|
[10481] | 484 | IF( ln_bdy .AND. ln_vol ) CALL bdy_vol2d( kt, jn, ua_e, va_e, zhup2_e, zhvp2_e ) |
---|
| 485 | ! |
---|
[11536] | 486 | ! ! resulting flux at mid-step (not over the full domain) |
---|
| 487 | 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 |
---|
| 488 | 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] | 489 | ! |
---|
| 490 | #if defined key_agrif |
---|
[6140] | 491 | ! Set fluxes during predictor step to ensure volume conservation |
---|
| 492 | IF( .NOT.Agrif_Root() .AND. ln_bt_fw ) THEN |
---|
[4486] | 493 | IF((nbondi == -1).OR.(nbondi == 2)) THEN |
---|
[9019] | 494 | DO jj = 1, jpj |
---|
[11536] | 495 | zhU(2:nbghostcells+1,jj) = ubdy_w(1:nbghostcells,jj) * e2u(2:nbghostcells+1,jj) |
---|
| 496 | zhV(2:nbghostcells+1,jj) = vbdy_w(1:nbghostcells,jj) * e1v(2:nbghostcells+1,jj) |
---|
[4486] | 497 | END DO |
---|
| 498 | ENDIF |
---|
| 499 | IF((nbondi == 1).OR.(nbondi == 2)) THEN |
---|
| 500 | DO jj=1,jpj |
---|
[11536] | 501 | zhU(nlci-nbghostcells-1:nlci-2,jj) = ubdy_e(1:nbghostcells,jj) * e2u(nlci-nbghostcells-1:nlci-2,jj) |
---|
| 502 | zhV(nlci-nbghostcells :nlci-1,jj) = vbdy_e(1:nbghostcells,jj) * e1v(nlci-nbghostcells :nlci-1,jj) |
---|
[4486] | 503 | END DO |
---|
| 504 | ENDIF |
---|
| 505 | IF((nbondj == -1).OR.(nbondj == 2)) THEN |
---|
| 506 | DO ji=1,jpi |
---|
[11536] | 507 | zhV(ji,2:nbghostcells+1) = vbdy_s(ji,1:nbghostcells) * e1v(ji,2:nbghostcells+1) |
---|
| 508 | zhU(ji,2:nbghostcells+1) = ubdy_s(ji,1:nbghostcells) * e2u(ji,2:nbghostcells+1) |
---|
[4486] | 509 | END DO |
---|
| 510 | ENDIF |
---|
| 511 | IF((nbondj == 1).OR.(nbondj == 2)) THEN |
---|
| 512 | DO ji=1,jpi |
---|
[11536] | 513 | zhV(ji,nlcj-nbghostcells-1:nlcj-2) = vbdy_n(ji,1:nbghostcells) * e1v(ji,nlcj-nbghostcells-1:nlcj-2) |
---|
| 514 | zhU(ji,nlcj-nbghostcells :nlcj-1) = ubdy_n(ji,1:nbghostcells) * e2u(ji,nlcj-nbghostcells :nlcj-1) |
---|
[4486] | 515 | END DO |
---|
| 516 | ENDIF |
---|
| 517 | ENDIF |
---|
| 518 | #endif |
---|
[11536] | 519 | IF( ln_wd_il ) CALL wad_lmt_bt(zhU, zhV, sshn_e, zssh_frc, rdtbt) !!gm wad_lmt_bt use of lbc_lnk on zhU, zhV |
---|
[9023] | 520 | |
---|
[11536] | 521 | IF( ln_wd_dl ) THEN ! un_e and vn_e are set to zero at faces where |
---|
| 522 | ! ! the direction of the flow is from dry cells |
---|
| 523 | CALL wad_Umsk( ztwdmask, zhU, zhV, un_e, vn_e, zuwdmask, zvwdmask ) ! not jpi colomn for U, not jpj row for V |
---|
[9528] | 524 | ! |
---|
| 525 | ENDIF |
---|
[11536] | 526 | ! |
---|
| 527 | ! |
---|
| 528 | ! Compute Sea Level at step jit+1 |
---|
| 529 | !-- m+1 m m+1/2 --! |
---|
| 530 | !-- ssh = ssh - delta_t' * [ frc + div( flux ) ] --! |
---|
| 531 | !-------------------------------------------------------------------------! |
---|
| 532 | DO jj = 2, jpjm1 ! INNER domain |
---|
| 533 | DO ji = 2, jpim1 |
---|
| 534 | zhdiv = ( zhU(ji,jj) - zhU(ji-1,jj) + zhV(ji,jj) - zhV(ji,jj-1) ) * r1_e1e2t(ji,jj) |
---|
| 535 | ssha_e(ji,jj) = ( sshn_e(ji,jj) - rdtbt * ( zssh_frc(ji,jj) + zhdiv ) ) * ssmask(ji,jj) |
---|
[358] | 536 | END DO |
---|
| 537 | END DO |
---|
[11536] | 538 | ! |
---|
| 539 | CALL lbc_lnk_multi( 'dynspg_ts', ssha_e, 'T', 1._wp, zhU, 'U', -1._wp, zhV, 'V', -1._wp ) |
---|
| 540 | ! |
---|
| 541 | ! ! Sum over sub-time-steps to compute advective velocities |
---|
| 542 | za2 = wgtbtp2(jn) ! zhU, zhV hold fluxes extrapolated at jn+0.5 |
---|
| 543 | un_adv(:,:) = un_adv(:,:) + za2 * zhU(:,:) * r1_e2u(:,:) |
---|
| 544 | vn_adv(:,:) = vn_adv(:,:) + za2 * zhV(:,:) * r1_e1v(:,:) |
---|
| 545 | ! sum over sub-time-steps to decide which baroclinic velocities to set to zero (zuwdav2 is only used when ln_wd_dl_bc=True) |
---|
| 546 | IF ( ln_wd_dl_bc ) THEN |
---|
| 547 | zuwdav2(1:jpim1,1:jpj ) = zuwdav2(1:jpim1,1:jpj ) + za2 * zuwdmask(1:jpim1,1:jpj ) ! not jpi-column |
---|
| 548 | zvwdav2(1:jpi ,1:jpjm1) = zvwdav2(1:jpi ,1:jpjm1) + za2 * zvwdmask(1:jpi ,1:jpjm1) ! not jpj-row |
---|
| 549 | END IF |
---|
| 550 | ! |
---|
[6140] | 551 | ! Duplicate sea level across open boundaries (this is only cosmetic if linssh=T) |
---|
[7646] | 552 | IF( ln_bdy ) CALL bdy_ssh( ssha_e ) |
---|
[4292] | 553 | #if defined key_agrif |
---|
[6140] | 554 | IF( .NOT.Agrif_Root() ) CALL agrif_ssh_ts( jn ) |
---|
[4292] | 555 | #endif |
---|
| 556 | ! |
---|
| 557 | ! Sea Surface Height at u-,v-points (vvl case only) |
---|
[6140] | 558 | IF( .NOT.ln_linssh ) THEN |
---|
[11536] | 559 | DO jj = 2, jpjm1 ! INNER domain, will be extended to whole domain later |
---|
[4292] | 560 | DO ji = 2, jpim1 ! NO Vector Opt. |
---|
[9043] | 561 | zsshu_a(ji,jj) = r1_2 * ssumask(ji,jj) * r1_e1e2u(ji,jj) & |
---|
[6140] | 562 | & * ( e1e2t(ji ,jj ) * ssha_e(ji ,jj ) & |
---|
| 563 | & + e1e2t(ji+1,jj ) * ssha_e(ji+1,jj ) ) |
---|
[9043] | 564 | zsshv_a(ji,jj) = r1_2 * ssvmask(ji,jj) * r1_e1e2v(ji,jj) & |
---|
[6140] | 565 | & * ( e1e2t(ji ,jj ) * ssha_e(ji ,jj ) & |
---|
| 566 | & + e1e2t(ji ,jj+1) * ssha_e(ji ,jj+1) ) |
---|
[4292] | 567 | END DO |
---|
[358] | 568 | END DO |
---|
[4292] | 569 | ENDIF |
---|
[11536] | 570 | ! |
---|
| 571 | ! Half-step back interpolation of SSH for surface pressure computation at step jit+1/2 |
---|
| 572 | !-- m+1/2 m+1 m m-1 m-2 --! |
---|
| 573 | !-- ssh' = za0 * ssh + za1 * ssh + za2 * ssh + za3 * ssh --! |
---|
| 574 | !------------------------------------------------------------------------------------------! |
---|
| 575 | CALL ts_bck_interp( jn, ll_init, za0, za1, za2, za3 ) ! coeficients of the interpolation |
---|
[9528] | 576 | zsshp2_e(:,:) = za0 * ssha_e(:,:) + za1 * sshn_e (:,:) & |
---|
| 577 | & + za2 * sshb_e(:,:) + za3 * sshbb_e(:,:) |
---|
[1502] | 578 | ! |
---|
[11536] | 579 | ! ! Surface pressure gradient |
---|
| 580 | zldg = ( 1._wp - rn_scal_load ) * grav ! local factor |
---|
| 581 | DO jj = 2, jpjm1 |
---|
| 582 | DO ji = 2, jpim1 |
---|
| 583 | zu_spg(ji,jj) = - zldg * ( zsshp2_e(ji+1,jj) - zsshp2_e(ji,jj) ) * r1_e1u(ji,jj) |
---|
| 584 | zv_spg(ji,jj) = - zldg * ( zsshp2_e(ji,jj+1) - zsshp2_e(ji,jj) ) * r1_e2v(ji,jj) |
---|
[4292] | 585 | END DO |
---|
[11536] | 586 | END DO |
---|
| 587 | IF( ln_wd_il ) THEN ! W/D : gravity filters applied on pressure gradient |
---|
| 588 | CALL wad_spg( zsshp2_e, zcpx, zcpy ) ! Calculating W/D gravity filters |
---|
| 589 | zu_spg(2:jpim1,2:jpjm1) = zu_spg(2:jpim1,2:jpjm1) * zcpx(2:jpim1,2:jpjm1) |
---|
| 590 | zv_spg(2:jpim1,2:jpjm1) = zv_spg(2:jpim1,2:jpjm1) * zcpy(2:jpim1,2:jpjm1) |
---|
[4292] | 591 | ENDIF |
---|
| 592 | ! |
---|
| 593 | ! Add Coriolis trend: |
---|
[6140] | 594 | ! zwz array below or triads normally depend on sea level with ln_linssh=F and should be updated |
---|
[4292] | 595 | ! at each time step. We however keep them constant here for optimization. |
---|
[11536] | 596 | ! Recall that zhU and zhV hold fluxes at jn+0.5 (extrapolated not backward interpolated) |
---|
| 597 | CALL dyn_cor_2d( zhup2_e, zhvp2_e, ua_e, va_e, zhU, zhV, zu_trd, zv_trd ) |
---|
[4292] | 598 | ! |
---|
| 599 | ! Add tidal astronomical forcing if defined |
---|
[7646] | 600 | IF ( ln_tide .AND. ln_tide_pot ) THEN |
---|
[4292] | 601 | DO jj = 2, jpjm1 |
---|
| 602 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
[11536] | 603 | zu_trd(ji,jj) = zu_trd(ji,jj) + grav * ( pot_astro(ji+1,jj) - pot_astro(ji,jj) ) * r1_e1u(ji,jj) |
---|
| 604 | zv_trd(ji,jj) = zv_trd(ji,jj) + grav * ( pot_astro(ji,jj+1) - pot_astro(ji,jj) ) * r1_e2v(ji,jj) |
---|
[4292] | 605 | END DO |
---|
| 606 | END DO |
---|
| 607 | ENDIF |
---|
| 608 | ! |
---|
[9023] | 609 | ! Add bottom stresses: |
---|
| 610 | !jth do implicitly instead |
---|
| 611 | IF ( .NOT. ll_wd ) THEN ! Revert to explicit for bit comparison tests in non wad runs |
---|
[9045] | 612 | DO jj = 2, jpjm1 |
---|
| 613 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 614 | zu_trd(ji,jj) = zu_trd(ji,jj) + zCdU_u(ji,jj) * un_e(ji,jj) * hur_e(ji,jj) |
---|
| 615 | zv_trd(ji,jj) = zv_trd(ji,jj) + zCdU_v(ji,jj) * vn_e(ji,jj) * hvr_e(ji,jj) |
---|
| 616 | END DO |
---|
| 617 | END DO |
---|
[11536] | 618 | ENDIF |
---|
[4292] | 619 | ! |
---|
| 620 | ! Set next velocities: |
---|
[11536] | 621 | ! Compute barotropic speeds at step jit+1 (h : total height of the water colomn) |
---|
| 622 | !-- VECTOR FORM |
---|
| 623 | !-- m+1 m / m+1/2 \ --! |
---|
| 624 | !-- u = u + delta_t' * \ (1-r)*g * grad_x( ssh') - f * k vect u + frc / --! |
---|
| 625 | !-- --! |
---|
| 626 | !-- FLUX FORM --! |
---|
| 627 | !-- m+1 __1__ / m m / m+1/2 m+1/2 m+1/2 n \ \ --! |
---|
| 628 | !-- u = m+1 | h * u + delta_t' * \ h * (1-r)*g * grad_x( ssh') - h * f * k vect u + h * frc / | --! |
---|
| 629 | !-- h \ / --! |
---|
| 630 | !------------------------------------------------------------------------------------------------------------------------! |
---|
[9023] | 631 | IF( ln_dynadv_vec .OR. ln_linssh ) THEN !* Vector form |
---|
[4292] | 632 | DO jj = 2, jpjm1 |
---|
| 633 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
[5930] | 634 | ua_e(ji,jj) = ( un_e(ji,jj) & |
---|
[11536] | 635 | & + rdtbt * ( zu_spg(ji,jj) & |
---|
[4292] | 636 | & + zu_trd(ji,jj) & |
---|
| 637 | & + zu_frc(ji,jj) ) & |
---|
[6140] | 638 | & ) * ssumask(ji,jj) |
---|
[358] | 639 | |
---|
[5930] | 640 | va_e(ji,jj) = ( vn_e(ji,jj) & |
---|
[11536] | 641 | & + rdtbt * ( zv_spg(ji,jj) & |
---|
[4292] | 642 | & + zv_trd(ji,jj) & |
---|
| 643 | & + zv_frc(ji,jj) ) & |
---|
[6140] | 644 | & ) * ssvmask(ji,jj) |
---|
[4292] | 645 | END DO |
---|
| 646 | END DO |
---|
[6140] | 647 | ! |
---|
[9023] | 648 | ELSE !* Flux form |
---|
[4292] | 649 | DO jj = 2, jpjm1 |
---|
[11536] | 650 | DO ji = 2, jpim1 |
---|
| 651 | ! ! hu_e, hv_e hold depth at jn, zhup2_e, zhvp2_e hold extrapolated depth at jn+1/2 |
---|
| 652 | ! ! backward interpolated depth used in spg terms at jn+1/2 |
---|
| 653 | zhu_bck = hu_0(ji,jj) + r1_2*r1_e1e2u(ji,jj) * ( e1e2t(ji ,jj) * zsshp2_e(ji ,jj) & |
---|
| 654 | & + e1e2t(ji+1,jj) * zsshp2_e(ji+1,jj) ) * ssumask(ji,jj) |
---|
| 655 | zhv_bck = hv_0(ji,jj) + r1_2*r1_e1e2v(ji,jj) * ( e1e2t(ji,jj ) * zsshp2_e(ji,jj ) & |
---|
| 656 | & + e1e2t(ji,jj+1) * zsshp2_e(ji,jj+1) ) * ssvmask(ji,jj) |
---|
| 657 | ! ! inverse depth at jn+1 |
---|
| 658 | z1_hu = ssumask(ji,jj) / ( hu_0(ji,jj) + zsshu_a(ji,jj) + 1._wp - ssumask(ji,jj) ) |
---|
| 659 | z1_hv = ssvmask(ji,jj) / ( hv_0(ji,jj) + zsshv_a(ji,jj) + 1._wp - ssvmask(ji,jj) ) |
---|
| 660 | ! |
---|
| 661 | ua_e(ji,jj) = ( hu_e (ji,jj) * un_e (ji,jj) & |
---|
| 662 | & + rdtbt * ( zhu_bck * zu_spg (ji,jj) & ! |
---|
| 663 | & + zhup2_e(ji,jj) * zu_trd (ji,jj) & ! |
---|
| 664 | & + hu_n (ji,jj) * zu_frc (ji,jj) ) ) * z1_hu |
---|
| 665 | ! |
---|
| 666 | va_e(ji,jj) = ( hv_e (ji,jj) * vn_e (ji,jj) & |
---|
| 667 | & + rdtbt * ( zhv_bck * zv_spg (ji,jj) & ! |
---|
| 668 | & + zhvp2_e(ji,jj) * zv_trd (ji,jj) & ! |
---|
| 669 | & + hv_n (ji,jj) * zv_frc (ji,jj) ) ) * z1_hv |
---|
[592] | 670 | END DO |
---|
| 671 | END DO |
---|
[4292] | 672 | ENDIF |
---|
[10272] | 673 | !jth implicit bottom friction: |
---|
| 674 | IF ( ll_wd ) THEN ! revert to explicit for bit comparison tests in non wad runs |
---|
| 675 | DO jj = 2, jpjm1 |
---|
| 676 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 677 | ua_e(ji,jj) = ua_e(ji,jj) /(1.0 - rdtbt * zCdU_u(ji,jj) * hur_e(ji,jj)) |
---|
| 678 | va_e(ji,jj) = va_e(ji,jj) /(1.0 - rdtbt * zCdU_v(ji,jj) * hvr_e(ji,jj)) |
---|
| 679 | END DO |
---|
| 680 | END DO |
---|
| 681 | ENDIF |
---|
[11536] | 682 | |
---|
| 683 | IF( .NOT.ln_linssh ) THEN !* Update ocean depth (variable volume case only) |
---|
| 684 | hu_e (2:jpim1,2:jpjm1) = hu_0(2:jpim1,2:jpjm1) + zsshu_a(2:jpim1,2:jpjm1) |
---|
| 685 | hur_e(2:jpim1,2:jpjm1) = ssumask(2:jpim1,2:jpjm1) / ( hu_e(2:jpim1,2:jpjm1) + 1._wp - ssumask(2:jpim1,2:jpjm1) ) |
---|
| 686 | hv_e (2:jpim1,2:jpjm1) = hv_0(2:jpim1,2:jpjm1) + zsshv_a(2:jpim1,2:jpjm1) |
---|
| 687 | hvr_e(2:jpim1,2:jpjm1) = ssvmask(2:jpim1,2:jpjm1) / ( hv_e(2:jpim1,2:jpjm1) + 1._wp - ssvmask(2:jpim1,2:jpjm1) ) |
---|
| 688 | CALL lbc_lnk_multi( 'dynspg_ts', ua_e , 'U', -1._wp, va_e , 'V', -1._wp & |
---|
| 689 | & , hu_e , 'U', -1._wp, hv_e , 'V', -1._wp & |
---|
| 690 | & , hur_e, 'U', -1._wp, hvr_e, 'V', -1._wp ) |
---|
| 691 | ELSE |
---|
| 692 | CALL lbc_lnk_multi( 'dynspg_ts', ua_e , 'U', -1._wp, va_e , 'V', -1._wp ) |
---|
[1438] | 693 | ENDIF |
---|
[4292] | 694 | ! |
---|
[11536] | 695 | ! |
---|
[6140] | 696 | ! ! open boundaries |
---|
[7646] | 697 | IF( ln_bdy ) CALL bdy_dyn2d( jn, ua_e, va_e, un_e, vn_e, hur_e, hvr_e, ssha_e ) |
---|
[4486] | 698 | #if defined key_agrif |
---|
| 699 | IF( .NOT.Agrif_Root() ) CALL agrif_dyn_ts( jn ) ! Agrif |
---|
[4292] | 700 | #endif |
---|
| 701 | ! !* Swap |
---|
| 702 | ! ! ---- |
---|
[7753] | 703 | ubb_e (:,:) = ub_e (:,:) |
---|
| 704 | ub_e (:,:) = un_e (:,:) |
---|
| 705 | un_e (:,:) = ua_e (:,:) |
---|
| 706 | ! |
---|
| 707 | vbb_e (:,:) = vb_e (:,:) |
---|
| 708 | vb_e (:,:) = vn_e (:,:) |
---|
| 709 | vn_e (:,:) = va_e (:,:) |
---|
| 710 | ! |
---|
| 711 | sshbb_e(:,:) = sshb_e(:,:) |
---|
| 712 | sshb_e (:,:) = sshn_e(:,:) |
---|
| 713 | sshn_e (:,:) = ssha_e(:,:) |
---|
[4292] | 714 | |
---|
| 715 | ! !* Sum over whole bt loop |
---|
| 716 | ! ! ---------------------- |
---|
| 717 | za1 = wgtbtp1(jn) |
---|
[6140] | 718 | IF( ln_dynadv_vec .OR. ln_linssh ) THEN ! Sum velocities |
---|
[7753] | 719 | ua_b (:,:) = ua_b (:,:) + za1 * ua_e (:,:) |
---|
| 720 | va_b (:,:) = va_b (:,:) + za1 * va_e (:,:) |
---|
[9023] | 721 | ELSE ! Sum transports |
---|
| 722 | IF ( .NOT.ln_wd_dl ) THEN |
---|
| 723 | ua_b (:,:) = ua_b (:,:) + za1 * ua_e (:,:) * hu_e (:,:) |
---|
| 724 | va_b (:,:) = va_b (:,:) + za1 * va_e (:,:) * hv_e (:,:) |
---|
| 725 | ELSE |
---|
| 726 | ua_b (:,:) = ua_b (:,:) + za1 * ua_e (:,:) * hu_e (:,:) * zuwdmask(:,:) |
---|
| 727 | va_b (:,:) = va_b (:,:) + za1 * va_e (:,:) * hv_e (:,:) * zvwdmask(:,:) |
---|
| 728 | END IF |
---|
[4292] | 729 | ENDIF |
---|
[9023] | 730 | ! ! Sum sea level |
---|
[7753] | 731 | ssha(:,:) = ssha(:,:) + za1 * ssha_e(:,:) |
---|
[9023] | 732 | |
---|
[358] | 733 | ! ! ==================== ! |
---|
| 734 | END DO ! end loop ! |
---|
| 735 | ! ! ==================== ! |
---|
[1438] | 736 | ! ----------------------------------------------------------------------------- |
---|
[1502] | 737 | ! Phase 3. update the general trend with the barotropic trend |
---|
[1438] | 738 | ! ----------------------------------------------------------------------------- |
---|
[1502] | 739 | ! |
---|
[4292] | 740 | ! Set advection velocity correction: |
---|
[9023] | 741 | IF (ln_bt_fw) THEN |
---|
| 742 | IF( .NOT.( kt == nit000 .AND. neuler==0 ) ) THEN |
---|
[11536] | 743 | DO jj = 1, jpj |
---|
| 744 | DO ji = 1, jpi |
---|
| 745 | zun_save = un_adv(ji,jj) |
---|
| 746 | zvn_save = vn_adv(ji,jj) |
---|
| 747 | ! ! apply the previously computed correction |
---|
| 748 | un_adv(ji,jj) = r1_2 * ( ub2_b(ji,jj) + zun_save - atfp * un_bf(ji,jj) ) |
---|
| 749 | vn_adv(ji,jj) = r1_2 * ( vb2_b(ji,jj) + zvn_save - atfp * vn_bf(ji,jj) ) |
---|
| 750 | ! ! Update corrective fluxes for next time step |
---|
| 751 | un_bf(ji,jj) = atfp * un_bf(ji,jj) + ( zun_save - ub2_b(ji,jj) ) |
---|
| 752 | vn_bf(ji,jj) = atfp * vn_bf(ji,jj) + ( zvn_save - vb2_b(ji,jj) ) |
---|
| 753 | ! ! Save integrated transport for next computation |
---|
| 754 | ub2_b(ji,jj) = zun_save |
---|
| 755 | vb2_b(ji,jj) = zvn_save |
---|
| 756 | END DO |
---|
| 757 | END DO |
---|
[9023] | 758 | ELSE |
---|
[11536] | 759 | un_bf(:,:) = 0._wp ! corrective fluxes for next time step set to zero |
---|
| 760 | vn_bf(:,:) = 0._wp |
---|
| 761 | ub2_b(:,:) = un_adv(:,:) ! Save integrated transport for next computation |
---|
| 762 | vb2_b(:,:) = vn_adv(:,:) |
---|
| 763 | END IF |
---|
[4292] | 764 | ENDIF |
---|
[9023] | 765 | |
---|
| 766 | |
---|
[4292] | 767 | ! |
---|
| 768 | ! Update barotropic trend: |
---|
[6140] | 769 | IF( ln_dynadv_vec .OR. ln_linssh ) THEN |
---|
[4292] | 770 | DO jk=1,jpkm1 |
---|
[9043] | 771 | ua(:,:,jk) = ua(:,:,jk) + ( ua_b(:,:) - ub_b(:,:) ) * r1_2dt_b |
---|
| 772 | va(:,:,jk) = va(:,:,jk) + ( va_b(:,:) - vb_b(:,:) ) * r1_2dt_b |
---|
[4292] | 773 | END DO |
---|
| 774 | ELSE |
---|
[5930] | 775 | ! At this stage, ssha has been corrected: compute new depths at velocity points |
---|
| 776 | DO jj = 1, jpjm1 |
---|
| 777 | DO ji = 1, jpim1 ! NO Vector Opt. |
---|
[9554] | 778 | zsshu_a(ji,jj) = r1_2 * ssumask(ji,jj) * r1_e1e2u(ji,jj) & |
---|
| 779 | & * ( e1e2t(ji ,jj) * ssha(ji ,jj) & |
---|
[5930] | 780 | & + e1e2t(ji+1,jj) * ssha(ji+1,jj) ) |
---|
[9554] | 781 | zsshv_a(ji,jj) = r1_2 * ssvmask(ji,jj) * r1_e1e2v(ji,jj) & |
---|
| 782 | & * ( e1e2t(ji,jj ) * ssha(ji,jj ) & |
---|
[5930] | 783 | & + e1e2t(ji,jj+1) * ssha(ji,jj+1) ) |
---|
| 784 | END DO |
---|
| 785 | END DO |
---|
[10425] | 786 | CALL lbc_lnk_multi( 'dynspg_ts', zsshu_a, 'U', 1._wp, zsshv_a, 'V', 1._wp ) ! Boundary conditions |
---|
[5930] | 787 | ! |
---|
[4292] | 788 | DO jk=1,jpkm1 |
---|
[9043] | 789 | ua(:,:,jk) = ua(:,:,jk) + r1_hu_n(:,:) * ( ua_b(:,:) - ub_b(:,:) * hu_b(:,:) ) * r1_2dt_b |
---|
| 790 | va(:,:,jk) = va(:,:,jk) + r1_hv_n(:,:) * ( va_b(:,:) - vb_b(:,:) * hv_b(:,:) ) * r1_2dt_b |
---|
[4292] | 791 | END DO |
---|
| 792 | ! Save barotropic velocities not transport: |
---|
[7753] | 793 | ua_b(:,:) = ua_b(:,:) / ( hu_0(:,:) + zsshu_a(:,:) + 1._wp - ssumask(:,:) ) |
---|
| 794 | va_b(:,:) = va_b(:,:) / ( hv_0(:,:) + zsshv_a(:,:) + 1._wp - ssvmask(:,:) ) |
---|
[4292] | 795 | ENDIF |
---|
[9023] | 796 | |
---|
| 797 | |
---|
| 798 | ! Correct velocities so that the barotropic velocity equals (un_adv, vn_adv) (in all cases) |
---|
[4292] | 799 | DO jk = 1, jpkm1 |
---|
[9023] | 800 | un(:,:,jk) = ( un(:,:,jk) + un_adv(:,:)*r1_hu_n(:,:) - un_b(:,:) ) * umask(:,:,jk) |
---|
| 801 | vn(:,:,jk) = ( vn(:,:,jk) + vn_adv(:,:)*r1_hv_n(:,:) - vn_b(:,:) ) * vmask(:,:,jk) |
---|
[358] | 802 | END DO |
---|
[9023] | 803 | |
---|
| 804 | IF ( ln_wd_dl .and. ln_wd_dl_bc) THEN |
---|
| 805 | DO jk = 1, jpkm1 |
---|
[9109] | 806 | un(:,:,jk) = ( un_adv(:,:)*r1_hu_n(:,:) & |
---|
| 807 | & + zuwdav2(:,:)*(un(:,:,jk) - un_adv(:,:)*r1_hu_n(:,:)) ) * umask(:,:,jk) |
---|
| 808 | vn(:,:,jk) = ( vn_adv(:,:)*r1_hv_n(:,:) & |
---|
| 809 | & + zvwdav2(:,:)*(vn(:,:,jk) - vn_adv(:,:)*r1_hv_n(:,:)) ) * vmask(:,:,jk) |
---|
[9023] | 810 | END DO |
---|
| 811 | END IF |
---|
| 812 | |
---|
| 813 | |
---|
| 814 | CALL iom_put( "ubar", un_adv(:,:)*r1_hu_n(:,:) ) ! barotropic i-current |
---|
| 815 | CALL iom_put( "vbar", vn_adv(:,:)*r1_hv_n(:,:) ) ! barotropic i-current |
---|
[1502] | 816 | ! |
---|
[4486] | 817 | #if defined key_agrif |
---|
| 818 | ! Save time integrated fluxes during child grid integration |
---|
[5656] | 819 | ! (used to update coarse grid transports at next time step) |
---|
[4486] | 820 | ! |
---|
[6140] | 821 | IF( .NOT.Agrif_Root() .AND. ln_bt_fw ) THEN |
---|
| 822 | IF( Agrif_NbStepint() == 0 ) THEN |
---|
[7753] | 823 | ub2_i_b(:,:) = 0._wp |
---|
| 824 | vb2_i_b(:,:) = 0._wp |
---|
[4486] | 825 | END IF |
---|
| 826 | ! |
---|
| 827 | za1 = 1._wp / REAL(Agrif_rhot(), wp) |
---|
[7753] | 828 | ub2_i_b(:,:) = ub2_i_b(:,:) + za1 * ub2_b(:,:) |
---|
| 829 | vb2_i_b(:,:) = vb2_i_b(:,:) + za1 * vb2_b(:,:) |
---|
[4486] | 830 | ENDIF |
---|
| 831 | #endif |
---|
[1502] | 832 | ! !* write time-spliting arrays in the restart |
---|
[6140] | 833 | IF( lrst_oce .AND.ln_bt_fw ) CALL ts_rst( kt, 'WRITE' ) |
---|
[508] | 834 | ! |
---|
[9023] | 835 | IF( ln_wd_il ) DEALLOCATE( zcpx, zcpy ) |
---|
| 836 | IF( ln_wd_dl ) DEALLOCATE( ztwdmask, zuwdmask, zvwdmask, zuwdav2, zvwdav2 ) |
---|
[1662] | 837 | ! |
---|
[9019] | 838 | IF( ln_diatmb ) THEN |
---|
[9554] | 839 | CALL iom_put( "baro_u" , un_b*ssumask(:,:)+zmdi*(1.-ssumask(:,:) ) ) ! Barotropic U Velocity |
---|
| 840 | CALL iom_put( "baro_v" , vn_b*ssvmask(:,:)+zmdi*(1.-ssvmask(:,:) ) ) ! Barotropic V Velocity |
---|
[6140] | 841 | ENDIF |
---|
[2715] | 842 | ! |
---|
[508] | 843 | END SUBROUTINE dyn_spg_ts |
---|
| 844 | |
---|
[6140] | 845 | |
---|
[4292] | 846 | SUBROUTINE ts_wgt( ll_av, ll_fw, jpit, zwgt1, zwgt2) |
---|
| 847 | !!--------------------------------------------------------------------- |
---|
| 848 | !! *** ROUTINE ts_wgt *** |
---|
| 849 | !! |
---|
| 850 | !! ** Purpose : Set time-splitting weights for temporal averaging (or not) |
---|
| 851 | !!---------------------------------------------------------------------- |
---|
| 852 | LOGICAL, INTENT(in) :: ll_av ! temporal averaging=.true. |
---|
| 853 | LOGICAL, INTENT(in) :: ll_fw ! forward time splitting =.true. |
---|
| 854 | INTEGER, INTENT(inout) :: jpit ! cycle length |
---|
| 855 | REAL(wp), DIMENSION(3*nn_baro), INTENT(inout) :: zwgt1, & ! Primary weights |
---|
| 856 | zwgt2 ! Secondary weights |
---|
| 857 | |
---|
| 858 | INTEGER :: jic, jn, ji ! temporary integers |
---|
| 859 | REAL(wp) :: za1, za2 |
---|
| 860 | !!---------------------------------------------------------------------- |
---|
[508] | 861 | |
---|
[4292] | 862 | zwgt1(:) = 0._wp |
---|
| 863 | zwgt2(:) = 0._wp |
---|
| 864 | |
---|
| 865 | ! Set time index when averaged value is requested |
---|
| 866 | IF (ll_fw) THEN |
---|
| 867 | jic = nn_baro |
---|
| 868 | ELSE |
---|
| 869 | jic = 2 * nn_baro |
---|
| 870 | ENDIF |
---|
| 871 | |
---|
| 872 | ! Set primary weights: |
---|
| 873 | IF (ll_av) THEN |
---|
| 874 | ! Define simple boxcar window for primary weights |
---|
| 875 | ! (width = nn_baro, centered around jic) |
---|
| 876 | SELECT CASE ( nn_bt_flt ) |
---|
| 877 | CASE( 0 ) ! No averaging |
---|
| 878 | zwgt1(jic) = 1._wp |
---|
| 879 | jpit = jic |
---|
| 880 | |
---|
| 881 | CASE( 1 ) ! Boxcar, width = nn_baro |
---|
| 882 | DO jn = 1, 3*nn_baro |
---|
| 883 | za1 = ABS(float(jn-jic))/float(nn_baro) |
---|
| 884 | IF (za1 < 0.5_wp) THEN |
---|
| 885 | zwgt1(jn) = 1._wp |
---|
| 886 | jpit = jn |
---|
| 887 | ENDIF |
---|
| 888 | ENDDO |
---|
| 889 | |
---|
| 890 | CASE( 2 ) ! Boxcar, width = 2 * nn_baro |
---|
| 891 | DO jn = 1, 3*nn_baro |
---|
| 892 | za1 = ABS(float(jn-jic))/float(nn_baro) |
---|
| 893 | IF (za1 < 1._wp) THEN |
---|
| 894 | zwgt1(jn) = 1._wp |
---|
| 895 | jpit = jn |
---|
| 896 | ENDIF |
---|
| 897 | ENDDO |
---|
| 898 | CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for nn_bt_flt' ) |
---|
| 899 | END SELECT |
---|
| 900 | |
---|
| 901 | ELSE ! No time averaging |
---|
| 902 | zwgt1(jic) = 1._wp |
---|
| 903 | jpit = jic |
---|
| 904 | ENDIF |
---|
| 905 | |
---|
| 906 | ! Set secondary weights |
---|
| 907 | DO jn = 1, jpit |
---|
| 908 | DO ji = jn, jpit |
---|
| 909 | zwgt2(jn) = zwgt2(jn) + zwgt1(ji) |
---|
| 910 | END DO |
---|
| 911 | END DO |
---|
| 912 | |
---|
| 913 | ! Normalize weigths: |
---|
| 914 | za1 = 1._wp / SUM(zwgt1(1:jpit)) |
---|
| 915 | za2 = 1._wp / SUM(zwgt2(1:jpit)) |
---|
| 916 | DO jn = 1, jpit |
---|
| 917 | zwgt1(jn) = zwgt1(jn) * za1 |
---|
| 918 | zwgt2(jn) = zwgt2(jn) * za2 |
---|
| 919 | END DO |
---|
| 920 | ! |
---|
| 921 | END SUBROUTINE ts_wgt |
---|
| 922 | |
---|
[6140] | 923 | |
---|
[508] | 924 | SUBROUTINE ts_rst( kt, cdrw ) |
---|
| 925 | !!--------------------------------------------------------------------- |
---|
| 926 | !! *** ROUTINE ts_rst *** |
---|
| 927 | !! |
---|
| 928 | !! ** Purpose : Read or write time-splitting arrays in restart file |
---|
| 929 | !!---------------------------------------------------------------------- |
---|
[9528] | 930 | INTEGER , INTENT(in) :: kt ! ocean time-step |
---|
| 931 | CHARACTER(len=*), INTENT(in) :: cdrw ! "READ"/"WRITE" flag |
---|
[508] | 932 | !!---------------------------------------------------------------------- |
---|
| 933 | ! |
---|
[9506] | 934 | IF( TRIM(cdrw) == 'READ' ) THEN ! Read/initialise |
---|
| 935 | ! ! --------------- |
---|
[10256] | 936 | IF( ln_rstart .AND. ln_bt_fw .AND. (neuler/=0) ) THEN !* Read the restart file |
---|
[9506] | 937 | CALL iom_get( numror, jpdom_autoglo, 'ub2_b' , ub2_b (:,:), ldxios = lrxios ) |
---|
| 938 | CALL iom_get( numror, jpdom_autoglo, 'vb2_b' , vb2_b (:,:), ldxios = lrxios ) |
---|
| 939 | CALL iom_get( numror, jpdom_autoglo, 'un_bf' , un_bf (:,:), ldxios = lrxios ) |
---|
| 940 | CALL iom_get( numror, jpdom_autoglo, 'vn_bf' , vn_bf (:,:), ldxios = lrxios ) |
---|
| 941 | IF( .NOT.ln_bt_av ) THEN |
---|
| 942 | CALL iom_get( numror, jpdom_autoglo, 'sshbb_e' , sshbb_e(:,:), ldxios = lrxios ) |
---|
| 943 | CALL iom_get( numror, jpdom_autoglo, 'ubb_e' , ubb_e(:,:), ldxios = lrxios ) |
---|
| 944 | CALL iom_get( numror, jpdom_autoglo, 'vbb_e' , vbb_e(:,:), ldxios = lrxios ) |
---|
| 945 | CALL iom_get( numror, jpdom_autoglo, 'sshb_e' , sshb_e(:,:), ldxios = lrxios ) |
---|
| 946 | CALL iom_get( numror, jpdom_autoglo, 'ub_e' , ub_e(:,:), ldxios = lrxios ) |
---|
| 947 | CALL iom_get( numror, jpdom_autoglo, 'vb_e' , vb_e(:,:), ldxios = lrxios ) |
---|
| 948 | ENDIF |
---|
[4486] | 949 | #if defined key_agrif |
---|
[9506] | 950 | ! Read time integrated fluxes |
---|
| 951 | IF ( .NOT.Agrif_Root() ) THEN |
---|
| 952 | CALL iom_get( numror, jpdom_autoglo, 'ub2_i_b' , ub2_i_b(:,:), ldxios = lrxios ) |
---|
| 953 | CALL iom_get( numror, jpdom_autoglo, 'vb2_i_b' , vb2_i_b(:,:), ldxios = lrxios ) |
---|
| 954 | ENDIF |
---|
| 955 | #endif |
---|
| 956 | ELSE !* Start from rest |
---|
| 957 | IF(lwp) WRITE(numout,*) |
---|
| 958 | IF(lwp) WRITE(numout,*) ' ==>>> start from rest: set barotropic values to 0' |
---|
| 959 | ub2_b (:,:) = 0._wp ; vb2_b (:,:) = 0._wp ! used in the 1st interpol of agrif |
---|
| 960 | un_adv(:,:) = 0._wp ; vn_adv(:,:) = 0._wp ! used in the 1st interpol of agrif |
---|
| 961 | un_bf (:,:) = 0._wp ; vn_bf (:,:) = 0._wp ! used in the 1st update of agrif |
---|
| 962 | #if defined key_agrif |
---|
| 963 | IF ( .NOT.Agrif_Root() ) THEN |
---|
| 964 | ub2_i_b(:,:) = 0._wp ; vb2_i_b(:,:) = 0._wp ! used in the 1st update of agrif |
---|
| 965 | ENDIF |
---|
| 966 | #endif |
---|
[4486] | 967 | ENDIF |
---|
[9506] | 968 | ! |
---|
| 969 | ELSEIF( TRIM(cdrw) == 'WRITE' ) THEN ! Create restart file |
---|
| 970 | ! ! ------------------- |
---|
| 971 | IF(lwp) WRITE(numout,*) '---- ts_rst ----' |
---|
[9367] | 972 | IF( lwxios ) CALL iom_swap( cwxios_context ) |
---|
| 973 | CALL iom_rstput( kt, nitrst, numrow, 'ub2_b' , ub2_b (:,:), ldxios = lwxios ) |
---|
| 974 | CALL iom_rstput( kt, nitrst, numrow, 'vb2_b' , vb2_b (:,:), ldxios = lwxios ) |
---|
| 975 | CALL iom_rstput( kt, nitrst, numrow, 'un_bf' , un_bf (:,:), ldxios = lwxios ) |
---|
| 976 | CALL iom_rstput( kt, nitrst, numrow, 'vn_bf' , vn_bf (:,:), ldxios = lwxios ) |
---|
[4292] | 977 | ! |
---|
| 978 | IF (.NOT.ln_bt_av) THEN |
---|
[9367] | 979 | CALL iom_rstput( kt, nitrst, numrow, 'sshbb_e' , sshbb_e(:,:), ldxios = lwxios ) |
---|
| 980 | CALL iom_rstput( kt, nitrst, numrow, 'ubb_e' , ubb_e(:,:), ldxios = lwxios ) |
---|
| 981 | CALL iom_rstput( kt, nitrst, numrow, 'vbb_e' , vbb_e(:,:), ldxios = lwxios ) |
---|
| 982 | CALL iom_rstput( kt, nitrst, numrow, 'sshb_e' , sshb_e(:,:), ldxios = lwxios ) |
---|
| 983 | CALL iom_rstput( kt, nitrst, numrow, 'ub_e' , ub_e(:,:), ldxios = lwxios ) |
---|
| 984 | CALL iom_rstput( kt, nitrst, numrow, 'vb_e' , vb_e(:,:), ldxios = lwxios ) |
---|
[4292] | 985 | ENDIF |
---|
[4486] | 986 | #if defined key_agrif |
---|
| 987 | ! Save time integrated fluxes |
---|
| 988 | IF ( .NOT.Agrif_Root() ) THEN |
---|
[9367] | 989 | CALL iom_rstput( kt, nitrst, numrow, 'ub2_i_b' , ub2_i_b(:,:), ldxios = lwxios ) |
---|
| 990 | CALL iom_rstput( kt, nitrst, numrow, 'vb2_i_b' , vb2_i_b(:,:), ldxios = lwxios ) |
---|
[4486] | 991 | ENDIF |
---|
| 992 | #endif |
---|
[9367] | 993 | IF( lwxios ) CALL iom_swap( cxios_context ) |
---|
[4292] | 994 | ENDIF |
---|
| 995 | ! |
---|
| 996 | END SUBROUTINE ts_rst |
---|
[2528] | 997 | |
---|
[6140] | 998 | |
---|
| 999 | SUBROUTINE dyn_spg_ts_init |
---|
[4292] | 1000 | !!--------------------------------------------------------------------- |
---|
| 1001 | !! *** ROUTINE dyn_spg_ts_init *** |
---|
| 1002 | !! |
---|
| 1003 | !! ** Purpose : Set time splitting options |
---|
| 1004 | !!---------------------------------------------------------------------- |
---|
[6140] | 1005 | INTEGER :: ji ,jj ! dummy loop indices |
---|
| 1006 | REAL(wp) :: zxr2, zyr2, zcmax ! local scalar |
---|
[9019] | 1007 | REAL(wp), DIMENSION(jpi,jpj) :: zcu |
---|
[11536] | 1008 | INTEGER :: inum |
---|
[4292] | 1009 | !!---------------------------------------------------------------------- |
---|
[4370] | 1010 | ! |
---|
[5930] | 1011 | ! Max courant number for ext. grav. waves |
---|
[4370] | 1012 | ! |
---|
[5930] | 1013 | DO jj = 1, jpj |
---|
| 1014 | DO ji =1, jpi |
---|
| 1015 | zxr2 = r1_e1t(ji,jj) * r1_e1t(ji,jj) |
---|
| 1016 | zyr2 = r1_e2t(ji,jj) * r1_e2t(ji,jj) |
---|
[7646] | 1017 | zcu(ji,jj) = SQRT( grav * MAX(ht_0(ji,jj),0._wp) * (zxr2 + zyr2) ) |
---|
[4370] | 1018 | END DO |
---|
[5930] | 1019 | END DO |
---|
| 1020 | ! |
---|
[5836] | 1021 | zcmax = MAXVAL( zcu(:,:) ) |
---|
[10425] | 1022 | CALL mpp_max( 'dynspg_ts', zcmax ) |
---|
[2528] | 1023 | |
---|
[4370] | 1024 | ! Estimate number of iterations to satisfy a max courant number= rn_bt_cmax |
---|
[6140] | 1025 | IF( ln_bt_auto ) nn_baro = CEILING( rdt / rn_bt_cmax * zcmax) |
---|
[4292] | 1026 | |
---|
[5836] | 1027 | rdtbt = rdt / REAL( nn_baro , wp ) |
---|
[4292] | 1028 | zcmax = zcmax * rdtbt |
---|
[9023] | 1029 | ! Print results |
---|
[4292] | 1030 | IF(lwp) WRITE(numout,*) |
---|
[9169] | 1031 | IF(lwp) WRITE(numout,*) 'dyn_spg_ts_init : split-explicit free surface' |
---|
| 1032 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~~' |
---|
[5930] | 1033 | IF( ln_bt_auto ) THEN |
---|
[9169] | 1034 | IF(lwp) WRITE(numout,*) ' ln_ts_auto =.true. Automatically set nn_baro ' |
---|
[4370] | 1035 | IF(lwp) WRITE(numout,*) ' Max. courant number allowed: ', rn_bt_cmax |
---|
[4292] | 1036 | ELSE |
---|
[9169] | 1037 | IF(lwp) WRITE(numout,*) ' ln_ts_auto=.false.: Use nn_baro in namelist nn_baro = ', nn_baro |
---|
[358] | 1038 | ENDIF |
---|
[4292] | 1039 | |
---|
| 1040 | IF(ln_bt_av) THEN |
---|
[9169] | 1041 | IF(lwp) WRITE(numout,*) ' ln_bt_av =.true. ==> Time averaging over nn_baro time steps is on ' |
---|
[4292] | 1042 | ELSE |
---|
[9169] | 1043 | IF(lwp) WRITE(numout,*) ' ln_bt_av =.false. => No time averaging of barotropic variables ' |
---|
[4292] | 1044 | ENDIF |
---|
[508] | 1045 | ! |
---|
[4292] | 1046 | ! |
---|
| 1047 | IF(ln_bt_fw) THEN |
---|
[4370] | 1048 | IF(lwp) WRITE(numout,*) ' ln_bt_fw=.true. => Forward integration of barotropic variables ' |
---|
[4292] | 1049 | ELSE |
---|
[4370] | 1050 | IF(lwp) WRITE(numout,*) ' ln_bt_fw =.false.=> Centred integration of barotropic variables ' |
---|
[4292] | 1051 | ENDIF |
---|
| 1052 | ! |
---|
[4486] | 1053 | #if defined key_agrif |
---|
| 1054 | ! Restrict the use of Agrif to the forward case only |
---|
[9023] | 1055 | !!! IF( .NOT.ln_bt_fw .AND. .NOT.Agrif_Root() ) CALL ctl_stop( 'AGRIF not implemented if ln_bt_fw=.FALSE.' ) |
---|
[4486] | 1056 | #endif |
---|
| 1057 | ! |
---|
[4370] | 1058 | IF(lwp) WRITE(numout,*) ' Time filter choice, nn_bt_flt: ', nn_bt_flt |
---|
[4292] | 1059 | SELECT CASE ( nn_bt_flt ) |
---|
[6140] | 1060 | CASE( 0 ) ; IF(lwp) WRITE(numout,*) ' Dirac' |
---|
| 1061 | CASE( 1 ) ; IF(lwp) WRITE(numout,*) ' Boxcar: width = nn_baro' |
---|
| 1062 | CASE( 2 ) ; IF(lwp) WRITE(numout,*) ' Boxcar: width = 2*nn_baro' |
---|
[9169] | 1063 | CASE DEFAULT ; CALL ctl_stop( 'unrecognised value for nn_bt_flt: should 0,1, or 2' ) |
---|
[4292] | 1064 | END SELECT |
---|
| 1065 | ! |
---|
[4370] | 1066 | IF(lwp) WRITE(numout,*) ' ' |
---|
| 1067 | IF(lwp) WRITE(numout,*) ' nn_baro = ', nn_baro |
---|
| 1068 | IF(lwp) WRITE(numout,*) ' Barotropic time step [s] is :', rdtbt |
---|
| 1069 | IF(lwp) WRITE(numout,*) ' Maximum Courant number is :', zcmax |
---|
| 1070 | ! |
---|
[9023] | 1071 | IF(lwp) WRITE(numout,*) ' Time diffusion parameter rn_bt_alpha: ', rn_bt_alpha |
---|
| 1072 | IF ((ln_bt_av.AND.nn_bt_flt/=0).AND.(rn_bt_alpha>0._wp)) THEN |
---|
| 1073 | CALL ctl_stop( 'dynspg_ts ERROR: if rn_bt_alpha > 0, remove temporal averaging' ) |
---|
| 1074 | ENDIF |
---|
| 1075 | ! |
---|
[6140] | 1076 | IF( .NOT.ln_bt_av .AND. .NOT.ln_bt_fw ) THEN |
---|
[4292] | 1077 | CALL ctl_stop( 'dynspg_ts ERROR: No time averaging => only forward integration is possible' ) |
---|
| 1078 | ENDIF |
---|
[6140] | 1079 | IF( zcmax>0.9_wp ) THEN |
---|
[4292] | 1080 | CALL ctl_stop( 'dynspg_ts ERROR: Maximum Courant number is greater than 0.9: Inc. nn_baro !' ) |
---|
| 1081 | ENDIF |
---|
| 1082 | ! |
---|
[9124] | 1083 | ! ! Allocate time-splitting arrays |
---|
| 1084 | IF( dyn_spg_ts_alloc() /= 0 ) CALL ctl_stop('STOP', 'dyn_spg_init: failed to allocate dynspg_ts arrays' ) |
---|
| 1085 | ! |
---|
| 1086 | ! ! read restart when needed |
---|
[9506] | 1087 | CALL ts_rst( nit000, 'READ' ) |
---|
[9124] | 1088 | ! |
---|
[9367] | 1089 | IF( lwxios ) THEN |
---|
| 1090 | ! define variables in restart file when writing with XIOS |
---|
| 1091 | CALL iom_set_rstw_var_active('ub2_b') |
---|
| 1092 | CALL iom_set_rstw_var_active('vb2_b') |
---|
| 1093 | CALL iom_set_rstw_var_active('un_bf') |
---|
| 1094 | CALL iom_set_rstw_var_active('vn_bf') |
---|
| 1095 | ! |
---|
| 1096 | IF (.NOT.ln_bt_av) THEN |
---|
| 1097 | CALL iom_set_rstw_var_active('sshbb_e') |
---|
| 1098 | CALL iom_set_rstw_var_active('ubb_e') |
---|
| 1099 | CALL iom_set_rstw_var_active('vbb_e') |
---|
| 1100 | CALL iom_set_rstw_var_active('sshb_e') |
---|
| 1101 | CALL iom_set_rstw_var_active('ub_e') |
---|
| 1102 | CALL iom_set_rstw_var_active('vb_e') |
---|
| 1103 | ENDIF |
---|
| 1104 | #if defined key_agrif |
---|
| 1105 | ! Save time integrated fluxes |
---|
| 1106 | IF ( .NOT.Agrif_Root() ) THEN |
---|
| 1107 | CALL iom_set_rstw_var_active('ub2_i_b') |
---|
| 1108 | CALL iom_set_rstw_var_active('vb2_i_b') |
---|
| 1109 | ENDIF |
---|
| 1110 | #endif |
---|
| 1111 | ENDIF |
---|
| 1112 | ! |
---|
[4292] | 1113 | END SUBROUTINE dyn_spg_ts_init |
---|
[508] | 1114 | |
---|
[11536] | 1115 | |
---|
| 1116 | SUBROUTINE dyn_cor_2d_init |
---|
| 1117 | !!--------------------------------------------------------------------- |
---|
| 1118 | !! *** ROUTINE dyn_cor_2d_init *** |
---|
| 1119 | !! |
---|
| 1120 | !! ** Purpose : Set time splitting options |
---|
| 1121 | !! Set arrays to remove/compute coriolis trend. |
---|
| 1122 | !! Do it once during initialization if volume is fixed, else at each long time step. |
---|
| 1123 | !! Note that these arrays are also used during barotropic loop. These are however frozen |
---|
| 1124 | !! although they should be updated in the variable volume case. Not a big approximation. |
---|
| 1125 | !! To remove this approximation, copy lines below inside barotropic loop |
---|
| 1126 | !! and update depths at T-F points (ht and zhf resp.) at each barotropic time step |
---|
| 1127 | !! |
---|
| 1128 | !! Compute zwz = f / ( height of the water colomn ) |
---|
| 1129 | !!---------------------------------------------------------------------- |
---|
| 1130 | INTEGER :: ji ,jj, jk ! dummy loop indices |
---|
| 1131 | REAL(wp) :: z1_ht |
---|
| 1132 | REAL(wp), DIMENSION(jpi,jpj) :: zhf |
---|
| 1133 | !!---------------------------------------------------------------------- |
---|
| 1134 | ! |
---|
| 1135 | SELECT CASE( nvor_scheme ) |
---|
| 1136 | CASE( np_EEN ) != EEN scheme using e3f (energy & enstrophy scheme) |
---|
| 1137 | SELECT CASE( nn_een_e3f ) !* ff_f/e3 at F-point |
---|
| 1138 | CASE ( 0 ) ! original formulation (masked averaging of e3t divided by 4) |
---|
| 1139 | DO jj = 1, jpjm1 |
---|
| 1140 | DO ji = 1, jpim1 |
---|
| 1141 | zwz(ji,jj) = ( ht_n(ji ,jj+1) + ht_n(ji+1,jj+1) + & |
---|
| 1142 | & ht_n(ji ,jj ) + ht_n(ji+1,jj ) ) * 0.25_wp |
---|
| 1143 | IF( zwz(ji,jj) /= 0._wp ) zwz(ji,jj) = ff_f(ji,jj) / zwz(ji,jj) |
---|
| 1144 | END DO |
---|
| 1145 | END DO |
---|
| 1146 | CASE ( 1 ) ! new formulation (masked averaging of e3t divided by the sum of mask) |
---|
| 1147 | DO jj = 1, jpjm1 |
---|
| 1148 | DO ji = 1, jpim1 |
---|
| 1149 | zwz(ji,jj) = ( ht_n (ji ,jj+1) + ht_n (ji+1,jj+1) & |
---|
| 1150 | & + ht_n (ji ,jj ) + ht_n (ji+1,jj ) ) & |
---|
| 1151 | & / ( MAX( 1._wp, ssmask(ji ,jj+1) + ssmask(ji+1,jj+1) & |
---|
| 1152 | & + ssmask(ji ,jj ) + ssmask(ji+1,jj ) ) ) |
---|
| 1153 | IF( zwz(ji,jj) /= 0._wp ) zwz(ji,jj) = ff_f(ji,jj) / zwz(ji,jj) |
---|
| 1154 | END DO |
---|
| 1155 | END DO |
---|
| 1156 | END SELECT |
---|
| 1157 | CALL lbc_lnk( 'dynspg_ts', zwz, 'F', 1._wp ) |
---|
| 1158 | ! |
---|
| 1159 | ftne(1,:) = 0._wp ; ftnw(1,:) = 0._wp ; ftse(1,:) = 0._wp ; ftsw(1,:) = 0._wp |
---|
| 1160 | DO jj = 2, jpj |
---|
| 1161 | DO ji = 2, jpi |
---|
| 1162 | ftne(ji,jj) = zwz(ji-1,jj ) + zwz(ji ,jj ) + zwz(ji ,jj-1) |
---|
| 1163 | ftnw(ji,jj) = zwz(ji-1,jj-1) + zwz(ji-1,jj ) + zwz(ji ,jj ) |
---|
| 1164 | ftse(ji,jj) = zwz(ji ,jj ) + zwz(ji ,jj-1) + zwz(ji-1,jj-1) |
---|
| 1165 | ftsw(ji,jj) = zwz(ji ,jj-1) + zwz(ji-1,jj-1) + zwz(ji-1,jj ) |
---|
| 1166 | END DO |
---|
| 1167 | END DO |
---|
| 1168 | ! |
---|
| 1169 | CASE( np_EET ) != EEN scheme using e3t (energy conserving scheme) |
---|
| 1170 | ftne(1,:) = 0._wp ; ftnw(1,:) = 0._wp ; ftse(1,:) = 0._wp ; ftsw(1,:) = 0._wp |
---|
| 1171 | DO jj = 2, jpj |
---|
| 1172 | DO ji = 2, jpi |
---|
| 1173 | z1_ht = ssmask(ji,jj) / ( ht_n(ji,jj) + 1._wp - ssmask(ji,jj) ) |
---|
| 1174 | ftne(ji,jj) = ( ff_f(ji-1,jj ) + ff_f(ji ,jj ) + ff_f(ji ,jj-1) ) * z1_ht |
---|
| 1175 | ftnw(ji,jj) = ( ff_f(ji-1,jj-1) + ff_f(ji-1,jj ) + ff_f(ji ,jj ) ) * z1_ht |
---|
| 1176 | ftse(ji,jj) = ( ff_f(ji ,jj ) + ff_f(ji ,jj-1) + ff_f(ji-1,jj-1) ) * z1_ht |
---|
| 1177 | ftsw(ji,jj) = ( ff_f(ji ,jj-1) + ff_f(ji-1,jj-1) + ff_f(ji-1,jj ) ) * z1_ht |
---|
| 1178 | END DO |
---|
| 1179 | END DO |
---|
| 1180 | ! |
---|
| 1181 | CASE( np_ENE, np_ENS , np_MIX ) != all other schemes (ENE, ENS, MIX) except ENT ! |
---|
| 1182 | ! |
---|
| 1183 | zwz(:,:) = 0._wp |
---|
| 1184 | zhf(:,:) = 0._wp |
---|
| 1185 | |
---|
| 1186 | !!gm assume 0 in both cases (which is almost surely WRONG ! ) as hvatf has been removed |
---|
| 1187 | !!gm A priori a better value should be something like : |
---|
| 1188 | !!gm zhf(i,j) = masked sum of ht(i,j) , ht(i+1,j) , ht(i,j+1) , (i+1,j+1) |
---|
| 1189 | !!gm divided by the sum of the corresponding mask |
---|
| 1190 | !!gm |
---|
| 1191 | !! |
---|
| 1192 | IF( .NOT.ln_sco ) THEN |
---|
| 1193 | |
---|
| 1194 | !!gm agree the JC comment : this should be done in a much clear way |
---|
| 1195 | |
---|
| 1196 | ! JC: It not clear yet what should be the depth at f-points over land in z-coordinate case |
---|
| 1197 | ! Set it to zero for the time being |
---|
| 1198 | ! IF( rn_hmin < 0._wp ) THEN ; jk = - INT( rn_hmin ) ! from a nb of level |
---|
| 1199 | ! ELSE ; jk = MINLOC( gdepw_0, mask = gdepw_0 > rn_hmin, dim = 1 ) ! from a depth |
---|
| 1200 | ! ENDIF |
---|
| 1201 | ! zhf(:,:) = gdepw_0(:,:,jk+1) |
---|
| 1202 | ! |
---|
| 1203 | ELSE |
---|
| 1204 | ! |
---|
| 1205 | !zhf(:,:) = hbatf(:,:) |
---|
| 1206 | DO jj = 1, jpjm1 |
---|
| 1207 | DO ji = 1, jpim1 |
---|
| 1208 | zhf(ji,jj) = ( ht_0 (ji,jj ) + ht_0 (ji+1,jj ) & |
---|
| 1209 | & + ht_0 (ji,jj+1) + ht_0 (ji+1,jj+1) ) & |
---|
| 1210 | & / MAX( ssmask(ji,jj ) + ssmask(ji+1,jj ) & |
---|
| 1211 | & + ssmask(ji,jj+1) + ssmask(ji+1,jj+1) , 1._wp ) |
---|
| 1212 | END DO |
---|
| 1213 | END DO |
---|
| 1214 | ENDIF |
---|
| 1215 | ! |
---|
| 1216 | DO jj = 1, jpjm1 |
---|
| 1217 | zhf(:,jj) = zhf(:,jj) * (1._wp- umask(:,jj,1) * umask(:,jj+1,1)) |
---|
| 1218 | END DO |
---|
| 1219 | ! |
---|
| 1220 | DO jk = 1, jpkm1 |
---|
| 1221 | DO jj = 1, jpjm1 |
---|
| 1222 | zhf(:,jj) = zhf(:,jj) + e3f_n(:,jj,jk) * umask(:,jj,jk) * umask(:,jj+1,jk) |
---|
| 1223 | END DO |
---|
| 1224 | END DO |
---|
| 1225 | CALL lbc_lnk( 'dynspg_ts', zhf, 'F', 1._wp ) |
---|
| 1226 | ! JC: TBC. hf should be greater than 0 |
---|
| 1227 | DO jj = 1, jpj |
---|
| 1228 | DO ji = 1, jpi |
---|
| 1229 | IF( zhf(ji,jj) /= 0._wp ) zwz(ji,jj) = 1._wp / zhf(ji,jj) |
---|
| 1230 | END DO |
---|
| 1231 | END DO |
---|
| 1232 | zwz(:,:) = ff_f(:,:) * zwz(:,:) |
---|
| 1233 | END SELECT |
---|
| 1234 | |
---|
| 1235 | END SUBROUTINE dyn_cor_2d_init |
---|
| 1236 | |
---|
| 1237 | |
---|
| 1238 | |
---|
| 1239 | SUBROUTINE dyn_cor_2d( hu_n, hv_n, un_b, vn_b, zhU, zhV, zu_trd, zv_trd ) |
---|
| 1240 | !!--------------------------------------------------------------------- |
---|
| 1241 | !! *** ROUTINE dyn_cor_2d *** |
---|
| 1242 | !! |
---|
| 1243 | !! ** Purpose : Compute u and v coriolis trends |
---|
| 1244 | !!---------------------------------------------------------------------- |
---|
| 1245 | INTEGER :: ji ,jj ! dummy loop indices |
---|
| 1246 | REAL(wp) :: zx1, zx2, zy1, zy2, z1_hu, z1_hv ! - - |
---|
| 1247 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: hu_n, hv_n, un_b, vn_b, zhU, zhV |
---|
| 1248 | REAL(wp), DIMENSION(jpi,jpj), INTENT( out) :: zu_trd, zv_trd |
---|
| 1249 | !!---------------------------------------------------------------------- |
---|
| 1250 | SELECT CASE( nvor_scheme ) |
---|
| 1251 | CASE( np_ENT ) ! enstrophy conserving scheme (f-point) |
---|
| 1252 | DO jj = 2, jpjm1 |
---|
| 1253 | DO ji = 2, jpim1 |
---|
| 1254 | z1_hu = ssumask(ji,jj) / ( hu_n(ji,jj) + 1._wp - ssumask(ji,jj) ) |
---|
| 1255 | z1_hv = ssvmask(ji,jj) / ( hv_n(ji,jj) + 1._wp - ssvmask(ji,jj) ) |
---|
| 1256 | zu_trd(ji,jj) = + r1_4 * r1_e1e2u(ji,jj) * z1_hu & |
---|
| 1257 | & * ( e1e2t(ji+1,jj)*ht_n(ji+1,jj)*ff_t(ji+1,jj) * ( vn_b(ji+1,jj) + vn_b(ji+1,jj-1) ) & |
---|
| 1258 | & + e1e2t(ji ,jj)*ht_n(ji ,jj)*ff_t(ji ,jj) * ( vn_b(ji ,jj) + vn_b(ji ,jj-1) ) ) |
---|
| 1259 | ! |
---|
| 1260 | zv_trd(ji,jj) = - r1_4 * r1_e1e2v(ji,jj) * z1_hv & |
---|
| 1261 | & * ( e1e2t(ji,jj+1)*ht_n(ji,jj+1)*ff_t(ji,jj+1) * ( un_b(ji,jj+1) + un_b(ji-1,jj+1) ) & |
---|
| 1262 | & + e1e2t(ji,jj )*ht_n(ji,jj )*ff_t(ji,jj ) * ( un_b(ji,jj ) + un_b(ji-1,jj ) ) ) |
---|
| 1263 | END DO |
---|
| 1264 | END DO |
---|
| 1265 | ! |
---|
| 1266 | CASE( np_ENE , np_MIX ) ! energy conserving scheme (t-point) ENE or MIX |
---|
| 1267 | DO jj = 2, jpjm1 |
---|
| 1268 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 1269 | zy1 = ( zhV(ji,jj-1) + zhV(ji+1,jj-1) ) * r1_e1u(ji,jj) |
---|
| 1270 | zy2 = ( zhV(ji,jj ) + zhV(ji+1,jj ) ) * r1_e1u(ji,jj) |
---|
| 1271 | zx1 = ( zhU(ji-1,jj) + zhU(ji-1,jj+1) ) * r1_e2v(ji,jj) |
---|
| 1272 | zx2 = ( zhU(ji ,jj) + zhU(ji ,jj+1) ) * r1_e2v(ji,jj) |
---|
| 1273 | ! energy conserving formulation for planetary vorticity term |
---|
| 1274 | zu_trd(ji,jj) = r1_4 * ( zwz(ji ,jj-1) * zy1 + zwz(ji,jj) * zy2 ) |
---|
| 1275 | zv_trd(ji,jj) = - r1_4 * ( zwz(ji-1,jj ) * zx1 + zwz(ji,jj) * zx2 ) |
---|
| 1276 | END DO |
---|
| 1277 | END DO |
---|
| 1278 | ! |
---|
| 1279 | CASE( np_ENS ) ! enstrophy conserving scheme (f-point) |
---|
| 1280 | DO jj = 2, jpjm1 |
---|
| 1281 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 1282 | zy1 = r1_8 * ( zhV(ji ,jj-1) + zhV(ji+1,jj-1) & |
---|
| 1283 | & + zhV(ji ,jj ) + zhV(ji+1,jj ) ) * r1_e1u(ji,jj) |
---|
| 1284 | zx1 = - r1_8 * ( zhU(ji-1,jj ) + zhU(ji-1,jj+1) & |
---|
| 1285 | & + zhU(ji ,jj ) + zhU(ji ,jj+1) ) * r1_e2v(ji,jj) |
---|
| 1286 | zu_trd(ji,jj) = zy1 * ( zwz(ji ,jj-1) + zwz(ji,jj) ) |
---|
| 1287 | zv_trd(ji,jj) = zx1 * ( zwz(ji-1,jj ) + zwz(ji,jj) ) |
---|
| 1288 | END DO |
---|
| 1289 | END DO |
---|
| 1290 | ! |
---|
| 1291 | CASE( np_EET , np_EEN ) ! energy & enstrophy scheme (using e3t or e3f) |
---|
| 1292 | DO jj = 2, jpjm1 |
---|
| 1293 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
| 1294 | zu_trd(ji,jj) = + r1_12 * r1_e1u(ji,jj) * ( ftne(ji,jj ) * zhV(ji ,jj ) & |
---|
| 1295 | & + ftnw(ji+1,jj) * zhV(ji+1,jj ) & |
---|
| 1296 | & + ftse(ji,jj ) * zhV(ji ,jj-1) & |
---|
| 1297 | & + ftsw(ji+1,jj) * zhV(ji+1,jj-1) ) |
---|
| 1298 | zv_trd(ji,jj) = - r1_12 * r1_e2v(ji,jj) * ( ftsw(ji,jj+1) * zhU(ji-1,jj+1) & |
---|
| 1299 | & + ftse(ji,jj+1) * zhU(ji ,jj+1) & |
---|
| 1300 | & + ftnw(ji,jj ) * zhU(ji-1,jj ) & |
---|
| 1301 | & + ftne(ji,jj ) * zhU(ji ,jj ) ) |
---|
| 1302 | END DO |
---|
| 1303 | END DO |
---|
| 1304 | ! |
---|
| 1305 | END SELECT |
---|
| 1306 | ! |
---|
| 1307 | END SUBROUTINE dyn_cor_2D |
---|
| 1308 | |
---|
| 1309 | |
---|
| 1310 | SUBROUTINE wad_tmsk( pssh, ptmsk ) |
---|
| 1311 | !!---------------------------------------------------------------------- |
---|
| 1312 | !! *** ROUTINE wad_lmt *** |
---|
| 1313 | !! |
---|
| 1314 | !! ** Purpose : set wetting & drying mask at tracer points |
---|
| 1315 | !! for the current barotropic sub-step |
---|
| 1316 | !! |
---|
| 1317 | !! ** Method : ??? |
---|
| 1318 | !! |
---|
| 1319 | !! ** Action : ptmsk : wetting & drying t-mask |
---|
| 1320 | !!---------------------------------------------------------------------- |
---|
| 1321 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: pssh ! |
---|
| 1322 | REAL(wp), DIMENSION(jpi,jpj), INTENT( out) :: ptmsk ! |
---|
| 1323 | ! |
---|
| 1324 | INTEGER :: ji, jj ! dummy loop indices |
---|
| 1325 | !!---------------------------------------------------------------------- |
---|
| 1326 | ! |
---|
| 1327 | IF( ln_wd_dl_rmp ) THEN |
---|
| 1328 | DO jj = 1, jpj |
---|
| 1329 | DO ji = 1, jpi |
---|
| 1330 | IF ( pssh(ji,jj) + ht_0(ji,jj) > 2._wp * rn_wdmin1 ) THEN |
---|
| 1331 | ! IF ( pssh(ji,jj) + ht_0(ji,jj) > rn_wdmin2 ) THEN |
---|
| 1332 | ptmsk(ji,jj) = 1._wp |
---|
| 1333 | ELSEIF( pssh(ji,jj) + ht_0(ji,jj) > rn_wdmin1 ) THEN |
---|
| 1334 | ptmsk(ji,jj) = TANH( 50._wp*( ( pssh(ji,jj) + ht_0(ji,jj) - rn_wdmin1 )*r_rn_wdmin1) ) |
---|
| 1335 | ELSE |
---|
| 1336 | ptmsk(ji,jj) = 0._wp |
---|
| 1337 | ENDIF |
---|
| 1338 | END DO |
---|
| 1339 | END DO |
---|
| 1340 | ELSE |
---|
| 1341 | DO jj = 1, jpj |
---|
| 1342 | DO ji = 1, jpi |
---|
| 1343 | IF ( pssh(ji,jj) + ht_0(ji,jj) > rn_wdmin1 ) THEN ; ptmsk(ji,jj) = 1._wp |
---|
| 1344 | ELSE ; ptmsk(ji,jj) = 0._wp |
---|
| 1345 | ENDIF |
---|
| 1346 | END DO |
---|
| 1347 | END DO |
---|
| 1348 | ENDIF |
---|
| 1349 | ! |
---|
| 1350 | END SUBROUTINE wad_tmsk |
---|
| 1351 | |
---|
| 1352 | |
---|
| 1353 | SUBROUTINE wad_Umsk( pTmsk, phU, phV, pu, pv, pUmsk, pVmsk ) |
---|
| 1354 | !!---------------------------------------------------------------------- |
---|
| 1355 | !! *** ROUTINE wad_lmt *** |
---|
| 1356 | !! |
---|
| 1357 | !! ** Purpose : set wetting & drying mask at tracer points |
---|
| 1358 | !! for the current barotropic sub-step |
---|
| 1359 | !! |
---|
| 1360 | !! ** Method : ??? |
---|
| 1361 | !! |
---|
| 1362 | !! ** Action : ptmsk : wetting & drying t-mask |
---|
| 1363 | !!---------------------------------------------------------------------- |
---|
| 1364 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: pTmsk ! W & D t-mask |
---|
| 1365 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: phU, phV, pu, pv ! ocean velocities and transports |
---|
| 1366 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pUmsk, pVmsk ! W & D u- and v-mask |
---|
| 1367 | ! |
---|
| 1368 | INTEGER :: ji, jj ! dummy loop indices |
---|
| 1369 | !!---------------------------------------------------------------------- |
---|
| 1370 | ! |
---|
| 1371 | DO jj = 1, jpj |
---|
| 1372 | DO ji = 1, jpim1 ! not jpi-column |
---|
| 1373 | IF ( phU(ji,jj) > 0._wp ) THEN ; pUmsk(ji,jj) = pTmsk(ji ,jj) |
---|
| 1374 | ELSE ; pUmsk(ji,jj) = pTmsk(ji+1,jj) |
---|
| 1375 | ENDIF |
---|
| 1376 | phU(ji,jj) = pUmsk(ji,jj)*phU(ji,jj) |
---|
| 1377 | pu (ji,jj) = pUmsk(ji,jj)*pu (ji,jj) |
---|
| 1378 | END DO |
---|
| 1379 | END DO |
---|
| 1380 | ! |
---|
| 1381 | DO jj = 1, jpjm1 ! not jpj-row |
---|
| 1382 | DO ji = 1, jpi |
---|
| 1383 | IF ( phV(ji,jj) > 0._wp ) THEN ; pVmsk(ji,jj) = pTmsk(ji,jj ) |
---|
| 1384 | ELSE ; pVmsk(ji,jj) = pTmsk(ji,jj+1) |
---|
| 1385 | ENDIF |
---|
| 1386 | phV(ji,jj) = pVmsk(ji,jj)*phV(ji,jj) |
---|
| 1387 | pv (ji,jj) = pVmsk(ji,jj)*pv (ji,jj) |
---|
| 1388 | END DO |
---|
| 1389 | END DO |
---|
| 1390 | ! |
---|
| 1391 | END SUBROUTINE wad_Umsk |
---|
| 1392 | |
---|
| 1393 | |
---|
| 1394 | SUBROUTINE wad_spg( sshn, zcpx, zcpy ) |
---|
| 1395 | !!--------------------------------------------------------------------- |
---|
| 1396 | !! *** ROUTINE wad_sp *** |
---|
| 1397 | !! |
---|
| 1398 | !! ** Purpose : |
---|
| 1399 | !!---------------------------------------------------------------------- |
---|
| 1400 | INTEGER :: ji ,jj ! dummy loop indices |
---|
| 1401 | LOGICAL :: ll_tmp1, ll_tmp2 |
---|
| 1402 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in ) :: sshn |
---|
| 1403 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: zcpx, zcpy |
---|
| 1404 | !!---------------------------------------------------------------------- |
---|
| 1405 | DO jj = 2, jpjm1 |
---|
| 1406 | DO ji = 2, jpim1 |
---|
| 1407 | ll_tmp1 = MIN( sshn(ji,jj) , sshn(ji+1,jj) ) > & |
---|
| 1408 | & MAX( -ht_0(ji,jj) , -ht_0(ji+1,jj) ) .AND. & |
---|
| 1409 | & MAX( sshn(ji,jj) + ht_0(ji,jj) , sshn(ji+1,jj) + ht_0(ji+1,jj) ) & |
---|
| 1410 | & > rn_wdmin1 + rn_wdmin2 |
---|
| 1411 | ll_tmp2 = ( ABS( sshn(ji+1,jj) - sshn(ji ,jj)) > 1.E-12 ).AND.( & |
---|
| 1412 | & MAX( sshn(ji,jj) , sshn(ji+1,jj) ) > & |
---|
| 1413 | & MAX( -ht_0(ji,jj) , -ht_0(ji+1,jj) ) + rn_wdmin1 + rn_wdmin2 ) |
---|
| 1414 | IF(ll_tmp1) THEN |
---|
| 1415 | zcpx(ji,jj) = 1.0_wp |
---|
| 1416 | ELSEIF(ll_tmp2) THEN |
---|
| 1417 | ! no worries about sshn(ji+1,jj) - sshn(ji ,jj) = 0, it won't happen ! here |
---|
| 1418 | zcpx(ji,jj) = ABS( (sshn(ji+1,jj) + ht_0(ji+1,jj) - sshn(ji,jj) - ht_0(ji,jj)) & |
---|
| 1419 | & / (sshn(ji+1,jj) - sshn(ji ,jj)) ) |
---|
| 1420 | zcpx(ji,jj) = max(min( zcpx(ji,jj) , 1.0_wp),0.0_wp) |
---|
| 1421 | ELSE |
---|
| 1422 | zcpx(ji,jj) = 0._wp |
---|
| 1423 | ENDIF |
---|
| 1424 | ! |
---|
| 1425 | ll_tmp1 = MIN( sshn(ji,jj) , sshn(ji,jj+1) ) > & |
---|
| 1426 | & MAX( -ht_0(ji,jj) , -ht_0(ji,jj+1) ) .AND. & |
---|
| 1427 | & MAX( sshn(ji,jj) + ht_0(ji,jj) , sshn(ji,jj+1) + ht_0(ji,jj+1) ) & |
---|
| 1428 | & > rn_wdmin1 + rn_wdmin2 |
---|
| 1429 | ll_tmp2 = ( ABS( sshn(ji,jj) - sshn(ji,jj+1)) > 1.E-12 ).AND.( & |
---|
| 1430 | & MAX( sshn(ji,jj) , sshn(ji,jj+1) ) > & |
---|
| 1431 | & MAX( -ht_0(ji,jj) , -ht_0(ji,jj+1) ) + rn_wdmin1 + rn_wdmin2 ) |
---|
| 1432 | |
---|
| 1433 | IF(ll_tmp1) THEN |
---|
| 1434 | zcpy(ji,jj) = 1.0_wp |
---|
| 1435 | ELSE IF(ll_tmp2) THEN |
---|
| 1436 | ! no worries about sshn(ji,jj+1) - sshn(ji,jj ) = 0, it won't happen ! here |
---|
| 1437 | zcpy(ji,jj) = ABS( (sshn(ji,jj+1) + ht_0(ji,jj+1) - sshn(ji,jj) - ht_0(ji,jj)) & |
---|
| 1438 | & / (sshn(ji,jj+1) - sshn(ji,jj )) ) |
---|
| 1439 | zcpy(ji,jj) = MAX( 0._wp , MIN( zcpy(ji,jj) , 1.0_wp ) ) |
---|
| 1440 | ELSE |
---|
| 1441 | zcpy(ji,jj) = 0._wp |
---|
| 1442 | ENDIF |
---|
| 1443 | END DO |
---|
| 1444 | END DO |
---|
| 1445 | |
---|
| 1446 | END SUBROUTINE wad_spg |
---|
| 1447 | |
---|
| 1448 | |
---|
| 1449 | |
---|
| 1450 | SUBROUTINE dyn_drg_init( pu_RHSi, pv_RHSi, pCdU_u, pCdU_v ) |
---|
| 1451 | !!---------------------------------------------------------------------- |
---|
| 1452 | !! *** ROUTINE dyn_drg_init *** |
---|
| 1453 | !! |
---|
| 1454 | !! ** Purpose : - add the baroclinic top/bottom drag contribution to |
---|
| 1455 | !! the baroclinic part of the barotropic RHS |
---|
| 1456 | !! - compute the barotropic drag coefficients |
---|
| 1457 | !! |
---|
| 1458 | !! ** Method : computation done over the INNER domain only |
---|
| 1459 | !!---------------------------------------------------------------------- |
---|
| 1460 | REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pu_RHSi, pv_RHSi ! baroclinic part of the barotropic RHS |
---|
| 1461 | REAL(wp), DIMENSION(jpi,jpj), INTENT( out) :: pCdU_u , pCdU_v ! barotropic drag coefficients |
---|
| 1462 | ! |
---|
| 1463 | INTEGER :: ji, jj ! dummy loop indices |
---|
| 1464 | INTEGER :: ikbu, ikbv, iktu, iktv |
---|
| 1465 | REAL(wp) :: zztmp |
---|
| 1466 | REAL(wp), DIMENSION(jpi,jpj) :: zu_i, zv_i |
---|
| 1467 | !!---------------------------------------------------------------------- |
---|
| 1468 | ! |
---|
| 1469 | ! !== Set the barotropic drag coef. ==! |
---|
| 1470 | ! |
---|
| 1471 | IF( ln_isfcav ) THEN ! top+bottom friction (ocean cavities) |
---|
| 1472 | |
---|
| 1473 | DO jj = 2, jpjm1 |
---|
| 1474 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1475 | pCdU_u(ji,jj) = r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) + rCdU_top(ji+1,jj)+rCdU_top(ji,jj) ) |
---|
| 1476 | pCdU_v(ji,jj) = r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) + rCdU_top(ji,jj+1)+rCdU_top(ji,jj) ) |
---|
| 1477 | END DO |
---|
| 1478 | END DO |
---|
| 1479 | ELSE ! bottom friction only |
---|
| 1480 | DO jj = 2, jpjm1 |
---|
| 1481 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1482 | pCdU_u(ji,jj) = r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) ) |
---|
| 1483 | pCdU_v(ji,jj) = r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) ) |
---|
| 1484 | END DO |
---|
| 1485 | END DO |
---|
| 1486 | ENDIF |
---|
| 1487 | ! |
---|
| 1488 | ! !== BOTTOM stress contribution from baroclinic velocities ==! |
---|
| 1489 | ! |
---|
| 1490 | IF( ln_bt_fw ) THEN ! FORWARD integration: use NOW bottom baroclinic velocities |
---|
| 1491 | |
---|
| 1492 | DO jj = 2, jpjm1 |
---|
| 1493 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1494 | ikbu = mbku(ji,jj) |
---|
| 1495 | ikbv = mbkv(ji,jj) |
---|
| 1496 | zu_i(ji,jj) = un(ji,jj,ikbu) - un_b(ji,jj) |
---|
| 1497 | zv_i(ji,jj) = vn(ji,jj,ikbv) - vn_b(ji,jj) |
---|
| 1498 | END DO |
---|
| 1499 | END DO |
---|
| 1500 | ELSE ! CENTRED integration: use BEFORE bottom baroclinic velocities |
---|
| 1501 | |
---|
| 1502 | DO jj = 2, jpjm1 |
---|
| 1503 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1504 | ikbu = mbku(ji,jj) |
---|
| 1505 | ikbv = mbkv(ji,jj) |
---|
| 1506 | zu_i(ji,jj) = ub(ji,jj,ikbu) - ub_b(ji,jj) |
---|
| 1507 | zv_i(ji,jj) = vb(ji,jj,ikbv) - vb_b(ji,jj) |
---|
| 1508 | END DO |
---|
| 1509 | END DO |
---|
| 1510 | ENDIF |
---|
| 1511 | ! |
---|
| 1512 | IF( ln_wd_il ) THEN ! W/D : use the "clipped" bottom friction !!gm explain WHY, please ! |
---|
| 1513 | zztmp = -1._wp / rdtbt |
---|
| 1514 | DO jj = 2, jpjm1 |
---|
| 1515 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1516 | pu_RHSi(ji,jj) = pu_RHSi(ji,jj) + zu_i(ji,jj) * wdrampu(ji,jj) * MAX( & |
---|
| 1517 | & r1_hu_n(ji,jj) * r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) ) , zztmp ) |
---|
| 1518 | pv_RHSi(ji,jj) = pv_RHSi(ji,jj) + zv_i(ji,jj) * wdrampv(ji,jj) * MAX( & |
---|
| 1519 | & r1_hv_n(ji,jj) * r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) ) , zztmp ) |
---|
| 1520 | END DO |
---|
| 1521 | END DO |
---|
| 1522 | ELSE ! use "unclipped" drag (even if explicit friction is used in 3D calculation) |
---|
| 1523 | |
---|
| 1524 | DO jj = 2, jpjm1 |
---|
| 1525 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1526 | pu_RHSi(ji,jj) = pu_RHSi(ji,jj) + r1_hu_n(ji,jj) * r1_2*( rCdU_bot(ji+1,jj)+rCdU_bot(ji,jj) ) * zu_i(ji,jj) |
---|
| 1527 | pv_RHSi(ji,jj) = pv_RHSi(ji,jj) + r1_hv_n(ji,jj) * r1_2*( rCdU_bot(ji,jj+1)+rCdU_bot(ji,jj) ) * zv_i(ji,jj) |
---|
| 1528 | END DO |
---|
| 1529 | END DO |
---|
| 1530 | END IF |
---|
| 1531 | ! |
---|
| 1532 | ! !== TOP stress contribution from baroclinic velocities ==! (no W/D case) |
---|
| 1533 | ! |
---|
| 1534 | IF( ln_isfcav ) THEN |
---|
| 1535 | ! |
---|
| 1536 | IF( ln_bt_fw ) THEN ! FORWARD integration: use NOW top baroclinic velocity |
---|
| 1537 | |
---|
| 1538 | DO jj = 2, jpjm1 |
---|
| 1539 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1540 | iktu = miku(ji,jj) |
---|
| 1541 | iktv = mikv(ji,jj) |
---|
| 1542 | zu_i(ji,jj) = un(ji,jj,iktu) - un_b(ji,jj) |
---|
| 1543 | zv_i(ji,jj) = vn(ji,jj,iktv) - vn_b(ji,jj) |
---|
| 1544 | END DO |
---|
| 1545 | END DO |
---|
| 1546 | ELSE ! CENTRED integration: use BEFORE top baroclinic velocity |
---|
| 1547 | |
---|
| 1548 | DO jj = 2, jpjm1 |
---|
| 1549 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1550 | iktu = miku(ji,jj) |
---|
| 1551 | iktv = mikv(ji,jj) |
---|
| 1552 | zu_i(ji,jj) = ub(ji,jj,iktu) - ub_b(ji,jj) |
---|
| 1553 | zv_i(ji,jj) = vb(ji,jj,iktv) - vb_b(ji,jj) |
---|
| 1554 | END DO |
---|
| 1555 | END DO |
---|
| 1556 | ENDIF |
---|
| 1557 | ! |
---|
| 1558 | ! ! use "unclipped" top drag (even if explicit friction is used in 3D calculation) |
---|
| 1559 | |
---|
| 1560 | DO jj = 2, jpjm1 |
---|
| 1561 | DO ji = 2, jpim1 ! INNER domain |
---|
| 1562 | pu_RHSi(ji,jj) = pu_RHSi(ji,jj) + r1_hu_n(ji,jj) * r1_2*( rCdU_top(ji+1,jj)+rCdU_top(ji,jj) ) * zu_i(ji,jj) |
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| 1563 | pv_RHSi(ji,jj) = pv_RHSi(ji,jj) + r1_hv_n(ji,jj) * r1_2*( rCdU_top(ji,jj+1)+rCdU_top(ji,jj) ) * zv_i(ji,jj) |
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| 1564 | END DO |
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| 1565 | END DO |
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| 1566 | ! |
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| 1567 | ENDIF |
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| 1568 | ! |
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| 1569 | END SUBROUTINE dyn_drg_init |
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| 1570 | |
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| 1571 | SUBROUTINE ts_bck_interp( jn, ll_init, & ! <== in |
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| 1572 | & za0, za1, za2, za3 ) ! ==> out |
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| 1573 | !!---------------------------------------------------------------------- |
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| 1574 | INTEGER ,INTENT(in ) :: jn ! index of sub time step |
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| 1575 | LOGICAL ,INTENT(in ) :: ll_init ! |
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| 1576 | REAL(wp),INTENT( out) :: za0, za1, za2, za3 ! Half-step back interpolation coefficient |
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| 1577 | ! |
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| 1578 | REAL(wp) :: zepsilon, zgamma ! - - |
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| 1579 | !!---------------------------------------------------------------------- |
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| 1580 | ! ! set Half-step back interpolation coefficient |
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| 1581 | IF ( jn==1 .AND. ll_init ) THEN !* Forward-backward |
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| 1582 | za0 = 1._wp |
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| 1583 | za1 = 0._wp |
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| 1584 | za2 = 0._wp |
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| 1585 | za3 = 0._wp |
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| 1586 | ELSEIF( jn==2 .AND. ll_init ) THEN !* AB2-AM3 Coefficients; bet=0 ; gam=-1/6 ; eps=1/12 |
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| 1587 | za0 = 1.0833333333333_wp ! za0 = 1-gam-eps |
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| 1588 | za1 =-0.1666666666666_wp ! za1 = gam |
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| 1589 | za2 = 0.0833333333333_wp ! za2 = eps |
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| 1590 | za3 = 0._wp |
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| 1591 | ELSE !* AB3-AM4 Coefficients; bet=0.281105 ; eps=0.013 ; gam=0.0880 |
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| 1592 | IF( rn_bt_alpha == 0._wp ) THEN ! Time diffusion |
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| 1593 | za0 = 0.614_wp ! za0 = 1/2 + gam + 2*eps |
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| 1594 | za1 = 0.285_wp ! za1 = 1/2 - 2*gam - 3*eps |
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| 1595 | za2 = 0.088_wp ! za2 = gam |
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| 1596 | za3 = 0.013_wp ! za3 = eps |
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| 1597 | ELSE ! no time diffusion |
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| 1598 | zepsilon = 0.00976186_wp - 0.13451357_wp * rn_bt_alpha |
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| 1599 | zgamma = 0.08344500_wp - 0.51358400_wp * rn_bt_alpha |
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| 1600 | za0 = 0.5_wp + zgamma + 2._wp * rn_bt_alpha + 2._wp * zepsilon |
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| 1601 | za1 = 1._wp - za0 - zgamma - zepsilon |
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| 1602 | za2 = zgamma |
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| 1603 | za3 = zepsilon |
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| 1604 | ENDIF |
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| 1605 | ENDIF |
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| 1606 | END SUBROUTINE ts_bck_interp |
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| 1607 | |
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| 1608 | |
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[358] | 1609 | !!====================================================================== |
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| 1610 | END MODULE dynspg_ts |
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