[592] | 1 | MODULE domvvl |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE domvvl *** |
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| 4 | !! Ocean : |
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| 5 | !!====================================================================== |
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[1438] | 6 | !! History : 2.0 ! 2006-06 (B. Levier, L. Marie) original code |
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| 7 | !! 3.1 ! 2009-02 (G. Madec, M. Leclair, R. Benshila) pure z* coordinate |
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[592] | 8 | !!---------------------------------------------------------------------- |
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[1438] | 9 | #if defined key_vvl |
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[592] | 10 | !!---------------------------------------------------------------------- |
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| 11 | !! 'key_vvl' variable volume |
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| 12 | !!---------------------------------------------------------------------- |
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[1438] | 13 | !! dom_vvl : defined coefficients to distribute ssh on each layers |
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[592] | 14 | !!---------------------------------------------------------------------- |
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| 15 | USE oce ! ocean dynamics and tracers |
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| 16 | USE dom_oce ! ocean space and time domain |
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[888] | 17 | USE sbc_oce ! surface boundary condition: ocean |
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| 18 | USE phycst ! physical constants |
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[592] | 19 | USE in_out_manager ! I/O manager |
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| 20 | USE lib_mpp ! distributed memory computing library |
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| 21 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 22 | |
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| 23 | IMPLICIT NONE |
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| 24 | PRIVATE |
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| 25 | |
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[1438] | 26 | PUBLIC dom_vvl ! called by domain.F90 |
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[592] | 27 | |
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[1438] | 28 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: ee_t, ee_u, ee_v, ee_f !: ??? |
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[592] | 29 | |
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[1438] | 30 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: mut, muu, muv, muf !: ??? |
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| 31 | |
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[592] | 32 | REAL(wp), DIMENSION(jpk) :: r2dt ! vertical profile time-step, = 2 rdttra |
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| 33 | ! ! except at nit000 (=rdttra) if neuler=0 |
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| 34 | |
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| 35 | !! * Substitutions |
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| 36 | # include "domzgr_substitute.h90" |
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| 37 | # include "vectopt_loop_substitute.h90" |
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| 38 | !!---------------------------------------------------------------------- |
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[1438] | 39 | !! NEMO/OPA 3.2 , LOCEAN-IPSL (2009) |
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[888] | 40 | !! $Id$ |
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[592] | 41 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 42 | !!---------------------------------------------------------------------- |
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| 43 | |
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| 44 | CONTAINS |
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| 45 | |
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[1438] | 46 | SUBROUTINE dom_vvl |
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[592] | 47 | !!---------------------------------------------------------------------- |
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[1438] | 48 | !! *** ROUTINE dom_vvl *** |
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[592] | 49 | !! |
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| 50 | !! ** Purpose : compute coefficients muX at T-U-V-F points to spread |
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| 51 | !! ssh over the whole water column (scale factors) |
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| 52 | !! |
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| 53 | !!---------------------------------------------------------------------- |
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[1438] | 54 | INTEGER :: ji, jj, jk |
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| 55 | REAL(wp) :: zcoefu, zcoefv, zcoeff |
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[592] | 56 | !!---------------------------------------------------------------------- |
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| 57 | |
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| 58 | IF(lwp) THEN |
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| 59 | WRITE(numout,*) |
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[1438] | 60 | WRITE(numout,*) 'dom_vvl : Variable volume activated' |
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| 61 | WRITE(numout,*) '~~~~~~~~ compute coef. used to spread ssh over each layers' |
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[592] | 62 | ENDIF |
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| 63 | |
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| 64 | #if defined key_zco || defined key_dynspg_rl |
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| 65 | CALL ctl_stop( 'dom_vvl_ini : options key_zco/key_dynspg_rl are incompatible with variable volume option key_vvl') |
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| 66 | #endif |
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| 67 | |
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[1438] | 68 | fsdept(:,:,:) = gdept (:,:,:) |
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| 69 | fsdepw(:,:,:) = gdepw (:,:,:) |
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| 70 | fsde3w(:,:,:) = gdep3w(:,:,:) |
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| 71 | fse3t (:,:,:) = e3t (:,:,:) |
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| 72 | fse3u (:,:,:) = e3u (:,:,:) |
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| 73 | fse3v (:,:,:) = e3v (:,:,:) |
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| 74 | fse3f (:,:,:) = e3f (:,:,:) |
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| 75 | fse3w (:,:,:) = e3w (:,:,:) |
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| 76 | fse3uw(:,:,:) = e3uw (:,:,:) |
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| 77 | fse3vw(:,:,:) = e3vw (:,:,:) |
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[592] | 78 | |
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| 79 | ! mu computation |
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[1438] | 80 | ! -------------- |
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| 81 | ! define ee_t, u, v and f as in sigma coordinate (ee_t = 1/ht, ...) |
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| 82 | ee_t(:,:) = fse3t_0(:,:,1) ! Lower bound : thickness of the first model level |
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| 83 | ee_u(:,:) = fse3u_0(:,:,1) |
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| 84 | ee_v(:,:) = fse3v_0(:,:,1) |
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| 85 | ee_f(:,:) = fse3f_0(:,:,1) |
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| 86 | DO jk = 2, jpkm1 ! Sum of the masked vertical scale factors |
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| 87 | ee_t(:,:) = ee_t(:,:) + fse3t_0(:,:,jk) * tmask(:,:,jk) |
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| 88 | ee_u(:,:) = ee_u(:,:) + fse3u_0(:,:,jk) * umask(:,:,jk) |
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| 89 | ee_v(:,:) = ee_v(:,:) + fse3v_0(:,:,jk) * vmask(:,:,jk) |
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| 90 | DO jj = 1, jpjm1 ! f-point : fmask=shlat at coasts, use the product of umask |
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| 91 | ee_f(:,jj) = ee_f(:,jj) + fse3f_0(:,jj,jk) * umask(:,jj,jk) * umask(:,jj+1,jk) |
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[592] | 92 | END DO |
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[1438] | 93 | END DO |
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| 94 | ! ! Compute and mask the inverse of the local depth at T, U, V and F points |
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| 95 | ee_t(:,:) = 1. / ee_t(:,:) * tmask(:,:,1) |
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| 96 | ee_u(:,:) = 1. / ee_u(:,:) * umask(:,:,1) |
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| 97 | ee_v(:,:) = 1. / ee_v(:,:) * vmask(:,:,1) |
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| 98 | DO jj = 1, jpjm1 ! f-point case fmask cannot be used |
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| 99 | ee_f(:,jj) = 1. / ee_f(:,jj) * umask(:,jj,1) * umask(:,jj+1,1) |
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[592] | 100 | END DO |
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[1438] | 101 | CALL lbc_lnk( ee_f, 'F', 1. ) ! lateral boundary condition on ee_f |
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| 102 | ! |
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| 103 | DO jk = 1, jpk |
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| 104 | mut(:,:,jk) = ee_t(:,:) * tmask(:,:,jk) ! at T levels |
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| 105 | muu(:,:,jk) = ee_u(:,:) * umask(:,:,jk) ! at T levels |
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| 106 | muv(:,:,jk) = ee_v(:,:) * vmask(:,:,jk) ! at T levels |
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| 107 | END DO |
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| 108 | DO jk = 1, jpk |
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| 109 | DO jj = 1, jpjm1 ! f-point : fmask=shlat at coasts, use the product of umask |
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| 110 | muf(:,jj,jk) = ee_f(:,jj) * umask(:,jj,jk) * umask(:,jj+1,jk) ! at T levels |
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[592] | 111 | END DO |
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[1438] | 112 | muf(:,jpj,jk) = 0.e0 |
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[592] | 113 | END DO |
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[1438] | 114 | CALL lbc_lnk( muf, 'F', 1. ) ! lateral boundary condition on ee_f |
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[592] | 115 | |
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| 116 | |
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[1438] | 117 | ! Reference ocean depth at U- and V-points |
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| 118 | hu_0(:,:) = 0.e0 |
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| 119 | hv_0(:,:) = 0.e0 |
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| 120 | DO jk = 1, jpk |
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| 121 | hu_0(:,:) = hu_0(:,:) + fse3u_0(:,:,jk) * umask(:,:,jk) |
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| 122 | hv_0(:,:) = hv_0(:,:) + fse3v_0(:,:,jk) * vmask(:,:,jk) |
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| 123 | END DO |
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[592] | 124 | |
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[1438] | 125 | ! before and now Sea Surface Height at u-, v-, f-points |
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[592] | 126 | DO jj = 1, jpjm1 |
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[1438] | 127 | DO ji = 1, jpim1 |
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| 128 | zcoefu = 0.5 * umask(ji,jj,1) / ( e1u(ji,jj) * e2u(ji,jj) ) |
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| 129 | zcoefv = 0.5 * vmask(ji,jj,1) / ( e1v(ji,jj) * e2v(ji,jj) ) |
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| 130 | zcoeff = 0.25 * umask(ji,jj,1) * umask(ji,jj+1,1) |
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| 131 | sshu_b(ji,jj) = zcoefu * ( e1t(ji ,jj) * e2t(ji ,jj) * sshb(ji ,jj) & |
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| 132 | & + e1t(ji+1,jj) * e2t(ji+1,jj) * sshb(ji+1,jj) ) |
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| 133 | sshv_b(ji,jj) = zcoefv * ( e1t(ji,jj ) * e2t(ji,jj ) * sshb(ji,jj ) & |
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| 134 | & + e1t(ji,jj+1) * e2t(ji,jj+1) * sshb(ji,jj+1) ) |
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| 135 | sshf_b(ji,jj) = zcoeff * ( sshb(ji ,jj) + sshb(ji ,jj+1) & |
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| 136 | & + sshb(ji+1,jj) + sshb(ji+1,jj+1) ) |
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| 137 | sshu_n(ji,jj) = zcoefu * ( e1t(ji ,jj) * e2t(ji ,jj) * sshn(ji ,jj) & |
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| 138 | & + e1t(ji+1,jj) * e2t(ji+1,jj) * sshn(ji+1,jj) ) |
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| 139 | sshv_n(ji,jj) = zcoefv * ( e1t(ji,jj ) * e2t(ji,jj ) * sshn(ji,jj ) & |
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| 140 | & + e1t(ji,jj+1) * e2t(ji,jj+1) * sshn(ji,jj+1) ) |
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| 141 | sshf_n(ji,jj) = zcoeff * ( sshn(ji ,jj) + sshn(ji ,jj+1) & |
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| 142 | & + sshn(ji+1,jj) + sshn(ji+1,jj+1) ) |
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[592] | 143 | END DO |
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| 144 | END DO |
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| 145 | ! Boundaries conditions |
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[1438] | 146 | CALL lbc_lnk( sshu_b, 'U', 1. ) ; CALL lbc_lnk( sshu_n, 'U', 1. ) |
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| 147 | CALL lbc_lnk( sshv_b, 'V', 1. ) ; CALL lbc_lnk( sshv_n, 'V', 1. ) |
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| 148 | CALL lbc_lnk( sshf_b, 'F', 1. ) ; CALL lbc_lnk( sshf_n, 'F', 1. ) |
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| 149 | ! |
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[592] | 150 | END SUBROUTINE dom_vvl |
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| 151 | |
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| 152 | #else |
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| 153 | !!---------------------------------------------------------------------- |
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| 154 | !! Default option : Empty routine |
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| 155 | !!---------------------------------------------------------------------- |
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[1438] | 156 | CONTAINS |
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[592] | 157 | SUBROUTINE dom_vvl |
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| 158 | END SUBROUTINE dom_vvl |
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| 159 | #endif |
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| 160 | |
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| 161 | !!====================================================================== |
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| 162 | END MODULE domvvl |
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