[1565] | 1 | MODULE sshwzv |
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[3] | 2 | !!============================================================================== |
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[1438] | 3 | !! *** MODULE sshwzv *** |
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| 4 | !! Ocean dynamics : sea surface height and vertical velocity |
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[3] | 5 | !!============================================================================== |
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[1438] | 6 | !! History : 3.1 ! 2009-02 (G. Madec, M. Leclair) Original code |
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[2528] | 7 | !! 3.3 ! 2010-04 (M. Leclair, G. Madec) modified LF-RA |
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| 8 | !! - ! 2010-05 (K. Mogensen, A. Weaver, M. Martin, D. Lea) Assimilation interface |
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| 9 | !! - ! 2010-09 (D.Storkey and E.O'Dea) bug fixes for BDY module |
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[3] | 10 | !!---------------------------------------------------------------------- |
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[1438] | 11 | |
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[3] | 12 | !!---------------------------------------------------------------------- |
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[1438] | 13 | !! ssh_wzv : after ssh & now vertical velocity |
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| 14 | !! ssh_nxt : filter ans swap the ssh arrays |
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| 15 | !!---------------------------------------------------------------------- |
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[3] | 16 | USE oce ! ocean dynamics and tracers variables |
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| 17 | USE dom_oce ! ocean space and time domain variables |
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[888] | 18 | USE sbc_oce ! surface boundary condition: ocean |
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| 19 | USE domvvl ! Variable volume |
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[1565] | 20 | USE divcur ! hor. divergence and curl (div & cur routines) |
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[1438] | 21 | USE iom ! I/O library |
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| 22 | USE restart ! only for lrst_oce |
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[3] | 23 | USE in_out_manager ! I/O manager |
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[258] | 24 | USE prtctl ! Print control |
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[592] | 25 | USE phycst |
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| 26 | USE lbclnk ! ocean lateral boundary condition (or mpp link) |
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[2715] | 27 | USE lib_mpp ! MPP library |
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[1241] | 28 | USE obc_par ! open boundary cond. parameter |
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| 29 | USE obc_oce |
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[2528] | 30 | USE bdy_oce |
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[2715] | 31 | USE diaar5, ONLY: lk_diaar5 |
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[1482] | 32 | USE iom |
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[2715] | 33 | USE sbcrnf, ONLY: h_rnf, nk_rnf ! River runoff |
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[2528] | 34 | #if defined key_agrif |
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| 35 | USE agrif_opa_update |
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[2486] | 36 | USE agrif_opa_interp |
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[2528] | 37 | #endif |
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| 38 | #if defined key_asminc |
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| 39 | USE asminc ! Assimilation increment |
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| 40 | #endif |
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[3186] | 41 | USE wrk_nemo ! Memory Allocation |
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[3161] | 42 | USE timing ! Timing |
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[592] | 43 | |
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[3] | 44 | IMPLICIT NONE |
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| 45 | PRIVATE |
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| 46 | |
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[1438] | 47 | PUBLIC ssh_wzv ! called by step.F90 |
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| 48 | PUBLIC ssh_nxt ! called by step.F90 |
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[3] | 49 | |
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| 50 | !! * Substitutions |
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| 51 | # include "domzgr_substitute.h90" |
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[1438] | 52 | # include "vectopt_loop_substitute.h90" |
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[3] | 53 | !!---------------------------------------------------------------------- |
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[2528] | 54 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[888] | 55 | !! $Id$ |
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[2715] | 56 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[592] | 57 | !!---------------------------------------------------------------------- |
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[3] | 58 | CONTAINS |
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| 59 | |
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[1438] | 60 | SUBROUTINE ssh_wzv( kt ) |
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[3] | 61 | !!---------------------------------------------------------------------- |
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[1438] | 62 | !! *** ROUTINE ssh_wzv *** |
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| 63 | !! |
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| 64 | !! ** Purpose : compute the after ssh (ssha), the now vertical velocity |
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| 65 | !! and update the now vertical coordinate (lk_vvl=T). |
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[3] | 66 | !! |
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[2528] | 67 | !! ** Method : - Using the incompressibility hypothesis, the vertical |
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[1438] | 68 | !! velocity is computed by integrating the horizontal divergence |
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| 69 | !! from the bottom to the surface minus the scale factor evolution. |
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| 70 | !! The boundary conditions are w=0 at the bottom (no flux) and. |
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[3] | 71 | !! |
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[1438] | 72 | !! ** action : ssha : after sea surface height |
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| 73 | !! wn : now vertical velocity |
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[2528] | 74 | !! sshu_a, sshv_a, sshf_a : after sea surface height (lk_vvl=T) |
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| 75 | !! hu, hv, hur, hvr : ocean depth and its inverse at u-,v-points |
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| 76 | !! |
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| 77 | !! Reference : Leclair, M., and G. Madec, 2009, Ocean Modelling. |
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[3] | 78 | !!---------------------------------------------------------------------- |
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[2977] | 79 | USE oce , ONLY: tsa ! tsa used as 2 3D workspace |
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| 80 | !! |
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[1438] | 81 | INTEGER, INTENT(in) :: kt ! time step |
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[2715] | 82 | ! |
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| 83 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 84 | REAL(wp) :: zcoefu, zcoefv, zcoeff, z2dt, z1_2dt, z1_rau0 ! local scalars |
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[3161] | 85 | REAL(wp), POINTER, DIMENSION(:,: ) :: z2d, zhdiv |
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[2977] | 86 | REAL(wp), POINTER, DIMENSION(:,:,:) :: z3d |
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[3] | 87 | !!---------------------------------------------------------------------- |
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[3161] | 88 | ! |
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| 89 | IF( nn_timing == 1 ) CALL timing_start('ssh_wzv') |
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| 90 | ! |
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| 91 | CALL wrk_alloc( jpi, jpj, z2d, zhdiv ) |
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| 92 | ! |
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[3] | 93 | IF( kt == nit000 ) THEN |
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[2528] | 94 | ! |
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[3] | 95 | IF(lwp) WRITE(numout,*) |
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[1438] | 96 | IF(lwp) WRITE(numout,*) 'ssh_wzv : after sea surface height and now vertical velocity ' |
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| 97 | IF(lwp) WRITE(numout,*) '~~~~~~~ ' |
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| 98 | ! |
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[2715] | 99 | wn(:,:,jpk) = 0._wp ! bottom boundary condition: w=0 (set once for all) |
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[1438] | 100 | ! |
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| 101 | IF( lk_vvl ) THEN ! before and now Sea SSH at u-, v-, f-points (vvl case only) |
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| 102 | DO jj = 1, jpjm1 |
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| 103 | DO ji = 1, jpim1 ! caution: use of Vector Opt. not possible |
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| 104 | zcoefu = 0.5 * umask(ji,jj,1) / ( e1u(ji,jj) * e2u(ji,jj) ) |
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| 105 | zcoefv = 0.5 * vmask(ji,jj,1) / ( e1v(ji,jj) * e2v(ji,jj) ) |
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| 106 | zcoeff = 0.25 * umask(ji,jj,1) * umask(ji,jj+1,1) |
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| 107 | sshu_b(ji,jj) = zcoefu * ( e1t(ji ,jj) * e2t(ji ,jj) * sshb(ji ,jj) & |
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| 108 | & + e1t(ji+1,jj) * e2t(ji+1,jj) * sshb(ji+1,jj) ) |
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| 109 | sshv_b(ji,jj) = zcoefv * ( e1t(ji,jj ) * e2t(ji,jj ) * sshb(ji,jj ) & |
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| 110 | & + e1t(ji,jj+1) * e2t(ji,jj+1) * sshb(ji,jj+1) ) |
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| 111 | sshu_n(ji,jj) = zcoefu * ( e1t(ji ,jj) * e2t(ji ,jj) * sshn(ji ,jj) & |
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| 112 | & + e1t(ji+1,jj) * e2t(ji+1,jj) * sshn(ji+1,jj) ) |
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| 113 | sshv_n(ji,jj) = zcoefv * ( e1t(ji,jj ) * e2t(ji,jj ) * sshn(ji,jj ) & |
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| 114 | & + e1t(ji,jj+1) * e2t(ji,jj+1) * sshn(ji,jj+1) ) |
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| 115 | END DO |
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| 116 | END DO |
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| 117 | CALL lbc_lnk( sshu_b, 'U', 1. ) ; CALL lbc_lnk( sshu_n, 'U', 1. ) |
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| 118 | CALL lbc_lnk( sshv_b, 'V', 1. ) ; CALL lbc_lnk( sshv_n, 'V', 1. ) |
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[2528] | 119 | DO jj = 1, jpjm1 |
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| 120 | DO ji = 1, jpim1 ! NO Vector Opt. |
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| 121 | sshf_n(ji,jj) = 0.5 * umask(ji,jj,1) * umask(ji,jj+1,1) & |
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| 122 | & / ( e1f(ji,jj ) * e2f(ji,jj ) ) & |
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| 123 | & * ( e1u(ji,jj ) * e2u(ji,jj ) * sshu_n(ji,jj ) & |
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| 124 | & + e1u(ji,jj+1) * e2u(ji,jj+1) * sshu_n(ji,jj+1) ) |
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| 125 | END DO |
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| 126 | END DO |
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| 127 | CALL lbc_lnk( sshf_n, 'F', 1. ) |
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[1438] | 128 | ENDIF |
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| 129 | ! |
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[3] | 130 | ENDIF |
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| 131 | |
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[2528] | 132 | ! !------------------------------------------! |
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| 133 | IF( lk_vvl ) THEN ! Regridding: Update Now Vertical coord. ! (only in vvl case) |
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| 134 | ! !------------------------------------------! |
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[1565] | 135 | DO jk = 1, jpkm1 |
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[2528] | 136 | fsdept(:,:,jk) = fsdept_n(:,:,jk) ! now local depths stored in fsdep. arrays |
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[1565] | 137 | fsdepw(:,:,jk) = fsdepw_n(:,:,jk) |
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| 138 | fsde3w(:,:,jk) = fsde3w_n(:,:,jk) |
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| 139 | ! |
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[2528] | 140 | fse3t (:,:,jk) = fse3t_n (:,:,jk) ! vertical scale factors stored in fse3. arrays |
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[1565] | 141 | fse3u (:,:,jk) = fse3u_n (:,:,jk) |
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| 142 | fse3v (:,:,jk) = fse3v_n (:,:,jk) |
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| 143 | fse3f (:,:,jk) = fse3f_n (:,:,jk) |
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| 144 | fse3w (:,:,jk) = fse3w_n (:,:,jk) |
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| 145 | fse3uw(:,:,jk) = fse3uw_n(:,:,jk) |
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| 146 | fse3vw(:,:,jk) = fse3vw_n(:,:,jk) |
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| 147 | END DO |
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[2528] | 148 | ! |
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| 149 | hu(:,:) = hu_0(:,:) + sshu_n(:,:) ! now ocean depth (at u- and v-points) |
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[1565] | 150 | hv(:,:) = hv_0(:,:) + sshv_n(:,:) |
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[2528] | 151 | ! ! now masked inverse of the ocean depth (at u- and v-points) |
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[2715] | 152 | hur(:,:) = umask(:,:,1) / ( hu(:,:) + 1._wp - umask(:,:,1) ) |
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| 153 | hvr(:,:) = vmask(:,:,1) / ( hv(:,:) + 1._wp - vmask(:,:,1) ) |
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[2528] | 154 | ! |
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[1565] | 155 | ENDIF |
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[2528] | 156 | ! |
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| 157 | CALL div_cur( kt ) ! Horizontal divergence & Relative vorticity |
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| 158 | ! |
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[2715] | 159 | z2dt = 2._wp * rdt ! set time step size (Euler/Leapfrog) |
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| 160 | IF( neuler == 0 .AND. kt == nit000 ) z2dt = rdt |
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[3] | 161 | |
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[1438] | 162 | ! !------------------------------! |
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| 163 | ! ! After Sea Surface Height ! |
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| 164 | ! !------------------------------! |
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[2715] | 165 | zhdiv(:,:) = 0._wp |
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[1438] | 166 | DO jk = 1, jpkm1 ! Horizontal divergence of barotropic transports |
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| 167 | zhdiv(:,:) = zhdiv(:,:) + fse3t(:,:,jk) * hdivn(:,:,jk) |
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| 168 | END DO |
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| 169 | ! ! Sea surface elevation time stepping |
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[2528] | 170 | ! In forward Euler time stepping case, the same formulation as in the leap-frog case can be used |
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| 171 | ! because emp_b field is initialized with the vlaues of emp field. Hence, 0.5 * ( emp + emp_b ) = emp |
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| 172 | z1_rau0 = 0.5 / rau0 |
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[2715] | 173 | ssha(:,:) = ( sshb(:,:) - z2dt * ( z1_rau0 * ( emp_b(:,:) + emp(:,:) ) + zhdiv(:,:) ) ) * tmask(:,:,1) |
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[1438] | 174 | |
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[2486] | 175 | #if defined key_agrif |
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[2715] | 176 | CALL agrif_ssh( kt ) |
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[2486] | 177 | #endif |
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[1438] | 178 | #if defined key_obc |
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[2528] | 179 | IF( Agrif_Root() ) THEN |
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[1438] | 180 | ssha(:,:) = ssha(:,:) * obctmsk(:,:) |
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[2715] | 181 | CALL lbc_lnk( ssha, 'T', 1. ) ! absolutly compulsory !! (jmm) |
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[1438] | 182 | ENDIF |
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| 183 | #endif |
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[2528] | 184 | #if defined key_bdy |
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| 185 | ssha(:,:) = ssha(:,:) * bdytmask(:,:) |
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[3116] | 186 | CALL lbc_lnk( ssha, 'T', 1. ) ! absolutly compulsory !! (jmm) |
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[2528] | 187 | #endif |
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[1438] | 188 | |
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| 189 | ! ! Sea Surface Height at u-,v- and f-points (vvl case only) |
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| 190 | IF( lk_vvl ) THEN ! (required only in key_vvl case) |
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| 191 | DO jj = 1, jpjm1 |
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[1694] | 192 | DO ji = 1, jpim1 ! NO Vector Opt. |
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[1438] | 193 | sshu_a(ji,jj) = 0.5 * umask(ji,jj,1) / ( e1u(ji ,jj) * e2u(ji ,jj) ) & |
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| 194 | & * ( e1t(ji ,jj) * e2t(ji ,jj) * ssha(ji ,jj) & |
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| 195 | & + e1t(ji+1,jj) * e2t(ji+1,jj) * ssha(ji+1,jj) ) |
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| 196 | sshv_a(ji,jj) = 0.5 * vmask(ji,jj,1) / ( e1v(ji,jj ) * e2v(ji,jj ) ) & |
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| 197 | & * ( e1t(ji,jj ) * e2t(ji,jj ) * ssha(ji,jj ) & |
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| 198 | & + e1t(ji,jj+1) * e2t(ji,jj+1) * ssha(ji,jj+1) ) |
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[592] | 199 | END DO |
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| 200 | END DO |
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[2715] | 201 | CALL lbc_lnk( sshu_a, 'U', 1. ) ; CALL lbc_lnk( sshv_a, 'V', 1. ) ! Boundaries conditions |
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[1438] | 202 | ENDIF |
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[2715] | 203 | |
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[2528] | 204 | #if defined key_asminc |
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[2715] | 205 | ! ! Include the IAU weighted SSH increment |
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| 206 | IF( lk_asminc .AND. ln_sshinc .AND. ln_asmiau ) THEN |
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[2528] | 207 | CALL ssh_asm_inc( kt ) |
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| 208 | ssha(:,:) = ssha(:,:) + z2dt * ssh_iau(:,:) |
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| 209 | ENDIF |
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| 210 | #endif |
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[592] | 211 | |
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[1438] | 212 | ! !------------------------------! |
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| 213 | ! ! Now Vertical Velocity ! |
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| 214 | ! !------------------------------! |
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[2528] | 215 | z1_2dt = 1.e0 / z2dt |
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| 216 | DO jk = jpkm1, 1, -1 ! integrate from the bottom the hor. divergence |
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| 217 | ! - ML - need 3 lines here because replacement of fse3t by its expression yields too long lines otherwise |
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[2715] | 218 | wn(:,:,jk) = wn(:,:,jk+1) - fse3t_n(:,:,jk) * hdivn(:,:,jk) & |
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| 219 | & - ( fse3t_a(:,:,jk) - fse3t_b(:,:,jk) ) & |
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[2528] | 220 | & * tmask(:,:,jk) * z1_2dt |
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| 221 | #if defined key_bdy |
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| 222 | wn(:,:,jk) = wn(:,:,jk) * bdytmask(:,:) |
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| 223 | #endif |
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[1438] | 224 | END DO |
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[2528] | 225 | |
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| 226 | ! !------------------------------! |
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| 227 | ! ! outputs ! |
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| 228 | ! !------------------------------! |
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[1756] | 229 | CALL iom_put( "woce", wn ) ! vertical velocity |
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| 230 | CALL iom_put( "ssh" , sshn ) ! sea surface height |
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| 231 | CALL iom_put( "ssh2", sshn(:,:) * sshn(:,:) ) ! square of sea surface height |
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[2528] | 232 | IF( lk_diaar5 ) THEN ! vertical mass transport & its square value |
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| 233 | ! Caution: in the VVL case, it only correponds to the baroclinic mass transport. |
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[2977] | 234 | z3d => tsa(:,:,:,1) |
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[1756] | 235 | z2d(:,:) = rau0 * e1t(:,:) * e2t(:,:) |
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| 236 | DO jk = 1, jpk |
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| 237 | z3d(:,:,jk) = wn(:,:,jk) * z2d(:,:) |
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| 238 | END DO |
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[2528] | 239 | CALL iom_put( "w_masstr" , z3d ) |
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| 240 | CALL iom_put( "w_masstr2", z3d(:,:,:) * z3d(:,:,:) ) |
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[1756] | 241 | ENDIF |
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[1438] | 242 | ! |
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[2528] | 243 | IF(ln_ctl) CALL prt_ctl( tab2d_1=ssha, clinfo1=' ssha - : ', mask1=tmask, ovlap=1 ) |
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| 244 | ! |
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[3161] | 245 | CALL wrk_dealloc( jpi, jpj, z2d, zhdiv ) |
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[2715] | 246 | ! |
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[3161] | 247 | IF( nn_timing == 1 ) CALL timing_stop('ssh_wzv') |
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| 248 | ! |
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[1438] | 249 | END SUBROUTINE ssh_wzv |
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[592] | 250 | |
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| 251 | |
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[1438] | 252 | SUBROUTINE ssh_nxt( kt ) |
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| 253 | !!---------------------------------------------------------------------- |
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| 254 | !! *** ROUTINE ssh_nxt *** |
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| 255 | !! |
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| 256 | !! ** Purpose : achieve the sea surface height time stepping by |
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| 257 | !! applying Asselin time filter and swapping the arrays |
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| 258 | !! ssha already computed in ssh_wzv |
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| 259 | !! |
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[2528] | 260 | !! ** Method : - apply Asselin time fiter to now ssh (excluding the forcing |
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| 261 | !! from the filter, see Leclair and Madec 2010) and swap : |
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| 262 | !! sshn = ssha + atfp * ( sshb -2 sshn + ssha ) |
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| 263 | !! - atfp * rdt * ( emp_b - emp ) / rau0 |
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| 264 | !! sshn = ssha |
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[1438] | 265 | !! |
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| 266 | !! ** action : - sshb, sshn : before & now sea surface height |
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| 267 | !! ready for the next time step |
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[2528] | 268 | !! |
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| 269 | !! Reference : Leclair, M., and G. Madec, 2009, Ocean Modelling. |
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[1438] | 270 | !!---------------------------------------------------------------------- |
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[2528] | 271 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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[1438] | 272 | !! |
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[2528] | 273 | INTEGER :: ji, jj ! dummy loop indices |
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| 274 | REAL(wp) :: zec ! temporary scalar |
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[1438] | 275 | !!---------------------------------------------------------------------- |
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[3161] | 276 | ! |
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| 277 | IF( nn_timing == 1 ) CALL timing_start('ssh_nxt') |
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| 278 | ! |
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[1438] | 279 | IF( kt == nit000 ) THEN |
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| 280 | IF(lwp) WRITE(numout,*) |
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| 281 | IF(lwp) WRITE(numout,*) 'ssh_nxt : next sea surface height (Asselin time filter + swap)' |
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| 282 | IF(lwp) WRITE(numout,*) '~~~~~~~ ' |
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| 283 | ENDIF |
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[592] | 284 | |
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[2528] | 285 | ! !--------------------------! |
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[2715] | 286 | IF( lk_vvl ) THEN ! Variable volume levels ! (ssh at t-, u-, v, f-points) |
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[2528] | 287 | ! !--------------------------! |
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| 288 | ! |
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[2715] | 289 | IF( neuler == 0 .AND. kt == nit000 ) THEN !** Euler time-stepping at first time-step : no filter |
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| 290 | sshn (:,:) = ssha (:,:) ! now <-- after (before already = now) |
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[1438] | 291 | sshu_n(:,:) = sshu_a(:,:) |
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| 292 | sshv_n(:,:) = sshv_a(:,:) |
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[2715] | 293 | DO jj = 1, jpjm1 ! ssh now at f-point |
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[2528] | 294 | DO ji = 1, jpim1 ! NO Vector Opt. |
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[2715] | 295 | sshf_n(ji,jj) = 0.5 * umask(ji,jj,1) * umask(ji,jj+1,1) & |
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[2528] | 296 | & / ( e1f(ji,jj ) * e2f(ji,jj ) ) & |
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| 297 | & * ( e1u(ji,jj ) * e2u(ji,jj ) * sshu_n(ji,jj ) & |
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| 298 | & + e1u(ji,jj+1) * e2u(ji,jj+1) * sshu_n(ji,jj+1) ) |
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| 299 | END DO |
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| 300 | END DO |
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[2715] | 301 | CALL lbc_lnk( sshf_n, 'F', 1. ) ! Boundaries conditions |
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| 302 | ! |
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| 303 | ELSE !** Leap-Frog time-stepping: Asselin filter + swap |
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[2528] | 304 | zec = atfp * rdt / rau0 |
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[1438] | 305 | DO jj = 1, jpj |
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[2715] | 306 | DO ji = 1, jpi ! before <-- now filtered |
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[2528] | 307 | sshb (ji,jj) = sshn (ji,jj) + atfp * ( sshb(ji,jj) - 2 * sshn(ji,jj) + ssha(ji,jj) ) & |
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| 308 | & - zec * ( emp_b(ji,jj) - emp(ji,jj) ) * tmask(ji,jj,1) |
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[2715] | 309 | sshn (ji,jj) = ssha (ji,jj) ! now <-- after |
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[1438] | 310 | sshu_n(ji,jj) = sshu_a(ji,jj) |
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| 311 | sshv_n(ji,jj) = sshv_a(ji,jj) |
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| 312 | END DO |
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| 313 | END DO |
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[2715] | 314 | DO jj = 1, jpjm1 ! ssh now at f-point |
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[2528] | 315 | DO ji = 1, jpim1 ! NO Vector Opt. |
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| 316 | sshf_n(ji,jj) = 0.5 * umask(ji,jj,1) * umask(ji,jj+1,1) & |
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| 317 | & / ( e1f(ji,jj ) * e2f(ji,jj ) ) & |
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| 318 | & * ( e1u(ji,jj ) * e2u(ji,jj ) * sshu_n(ji,jj ) & |
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| 319 | & + e1u(ji,jj+1) * e2u(ji,jj+1) * sshu_n(ji,jj+1) ) |
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| 320 | END DO |
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| 321 | END DO |
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[2715] | 322 | CALL lbc_lnk( sshf_n, 'F', 1. ) ! Boundaries conditions |
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| 323 | ! |
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| 324 | DO jj = 1, jpjm1 ! ssh before at u- & v-points |
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[2528] | 325 | DO ji = 1, jpim1 ! NO Vector Opt. |
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| 326 | sshu_b(ji,jj) = 0.5 * umask(ji,jj,1) / ( e1u(ji ,jj) * e2u(ji ,jj) ) & |
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| 327 | & * ( e1t(ji ,jj) * e2t(ji ,jj) * sshb(ji ,jj) & |
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| 328 | & + e1t(ji+1,jj) * e2t(ji+1,jj) * sshb(ji+1,jj) ) |
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| 329 | sshv_b(ji,jj) = 0.5 * vmask(ji,jj,1) / ( e1v(ji,jj ) * e2v(ji,jj ) ) & |
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| 330 | & * ( e1t(ji,jj ) * e2t(ji,jj ) * sshb(ji,jj ) & |
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| 331 | & + e1t(ji,jj+1) * e2t(ji,jj+1) * sshb(ji,jj+1) ) |
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| 332 | END DO |
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| 333 | END DO |
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| 334 | CALL lbc_lnk( sshu_b, 'U', 1. ) |
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[2715] | 335 | CALL lbc_lnk( sshv_b, 'V', 1. ) ! Boundaries conditions |
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| 336 | ! |
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[1438] | 337 | ENDIF |
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[2528] | 338 | ! !--------------------------! |
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[2715] | 339 | ELSE ! fixed levels ! (ssh at t-point only) |
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[2528] | 340 | ! !--------------------------! |
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[1438] | 341 | ! |
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[2715] | 342 | IF( neuler == 0 .AND. kt == nit000 ) THEN !** Euler time-stepping at first time-step : no filter |
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| 343 | sshn(:,:) = ssha(:,:) ! now <-- after (before already = now) |
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[1438] | 344 | ! |
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[2715] | 345 | ELSE ! Leap-Frog time-stepping: Asselin filter + swap |
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[1438] | 346 | DO jj = 1, jpj |
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[2715] | 347 | DO ji = 1, jpi ! before <-- now filtered |
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[2528] | 348 | sshb(ji,jj) = sshn(ji,jj) + atfp * ( sshb(ji,jj) - 2 * sshn(ji,jj) + ssha(ji,jj) ) |
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[2715] | 349 | sshn(ji,jj) = ssha(ji,jj) ! now <-- after |
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[1438] | 350 | END DO |
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| 351 | END DO |
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| 352 | ENDIF |
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| 353 | ! |
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| 354 | ENDIF |
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| 355 | ! |
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[2528] | 356 | ! Update velocity at AGRIF zoom boundaries |
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[2486] | 357 | #if defined key_agrif |
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[2528] | 358 | IF ( .NOT.Agrif_Root() ) CALL Agrif_Update_Dyn( kt ) |
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[2486] | 359 | #endif |
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[1438] | 360 | ! |
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[2528] | 361 | IF(ln_ctl) CALL prt_ctl( tab2d_1=sshb, clinfo1=' sshb - : ', mask1=tmask, ovlap=1 ) |
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| 362 | ! |
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[3161] | 363 | IF( nn_timing == 1 ) CALL timing_stop('ssh_nxt') |
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| 364 | ! |
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[1438] | 365 | END SUBROUTINE ssh_nxt |
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[3] | 366 | |
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| 367 | !!====================================================================== |
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[1565] | 368 | END MODULE sshwzv |
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