[456] | 1 | MODULE dynldf |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE dynldf *** |
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| 4 | !! Ocean physics: lateral diffusivity trends |
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| 5 | !!===================================================================== |
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[5836] | 6 | !! History : 2.0 ! 2005-11 (G. Madec) Original code (new step architecture) |
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| 7 | !! 3.7 ! 2014-01 (F. Lemarie, G. Madec) restructuration/simplification of ahm specification, |
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| 8 | !! ! add velocity dependent coefficient and optional read in file |
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[503] | 9 | !!---------------------------------------------------------------------- |
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[456] | 10 | |
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| 11 | !!---------------------------------------------------------------------- |
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[2528] | 12 | !! dyn_ldf : update the dynamics trend with the lateral diffusion |
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| 13 | !! dyn_ldf_init : initialization, namelist read, and parameters control |
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[456] | 14 | !!---------------------------------------------------------------------- |
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[503] | 15 | USE oce ! ocean dynamics and tracers |
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| 16 | USE dom_oce ! ocean space and time domain |
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| 17 | USE phycst ! physical constants |
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[5836] | 18 | USE ldfdyn ! lateral diffusion: eddy viscosity coef. |
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| 19 | USE ldfslp ! lateral diffusion: slopes of mixing orientation |
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| 20 | USE dynldf_lap_blp ! lateral mixing (dyn_ldf_lap & dyn_ldf_blp routines) |
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| 21 | USE dynldf_iso ! lateral mixing (dyn_ldf_iso routine ) |
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[4990] | 22 | USE trd_oce ! trends: ocean variables |
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[5836] | 23 | USE trddyn ! trend manager: dynamics (trd_dyn routine) |
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[4990] | 24 | ! |
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[503] | 25 | USE prtctl ! Print control |
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| 26 | USE in_out_manager ! I/O manager |
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| 27 | USE lib_mpp ! distribued memory computing library |
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| 28 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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[5836] | 29 | USE wrk_nemo ! Memory Allocation |
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| 30 | USE timing ! Timing |
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[456] | 31 | |
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| 32 | IMPLICIT NONE |
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| 33 | PRIVATE |
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| 34 | |
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[2528] | 35 | PUBLIC dyn_ldf ! called by step module |
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| 36 | PUBLIC dyn_ldf_init ! called by opa module |
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[456] | 37 | |
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[5836] | 38 | ! ! Flag to control the type of lateral viscous operator |
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| 39 | INTEGER, PARAMETER, PUBLIC :: np_ERROR =-10 ! error in setting the operator |
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| 40 | INTEGER, PARAMETER, PUBLIC :: np_no_ldf = 00 ! without operator (i.e. no lateral viscous trend) |
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| 41 | ! !! laplacian ! bilaplacian ! |
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| 42 | INTEGER, PARAMETER, PUBLIC :: np_lap = 10 , np_blp = 20 ! iso-level operator |
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| 43 | INTEGER, PARAMETER, PUBLIC :: np_lap_i = 11 ! iso-neutral or geopotential operator |
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[456] | 44 | |
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[5836] | 45 | INTEGER :: nldf ! type of lateral diffusion used defined from ln_dynldf_... (namlist logicals) |
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| 46 | |
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[456] | 47 | !! * Substitutions |
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| 48 | # include "domzgr_substitute.h90" |
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| 49 | # include "vectopt_loop_substitute.h90" |
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[2528] | 50 | !!---------------------------------------------------------------------- |
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[5836] | 51 | !! NEMO/OPA 3.7 , NEMO Consortium (2015) |
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[1152] | 52 | !! $Id$ |
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[2715] | 53 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[503] | 54 | !!---------------------------------------------------------------------- |
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[456] | 55 | CONTAINS |
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| 56 | |
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| 57 | SUBROUTINE dyn_ldf( kt ) |
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| 58 | !!---------------------------------------------------------------------- |
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| 59 | !! *** ROUTINE dyn_ldf *** |
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| 60 | !! |
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| 61 | !! ** Purpose : compute the lateral ocean dynamics physics. |
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[503] | 62 | !!---------------------------------------------------------------------- |
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| 63 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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[3294] | 64 | ! |
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| 65 | REAL(wp), POINTER, DIMENSION(:,:,:) :: ztrdu, ztrdv |
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[456] | 66 | !!---------------------------------------------------------------------- |
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[2715] | 67 | ! |
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[3294] | 68 | IF( nn_timing == 1 ) CALL timing_start('dyn_ldf') |
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| 69 | ! |
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[5836] | 70 | IF( l_trddyn ) THEN ! temporary save of momentum trends |
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| 71 | CALL wrk_alloc( jpi,jpj,jpk, ztrdu, ztrdv ) |
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[456] | 72 | ztrdu(:,:,:) = ua(:,:,:) |
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| 73 | ztrdv(:,:,:) = va(:,:,:) |
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| 74 | ENDIF |
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| 75 | |
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| 76 | SELECT CASE ( nldf ) ! compute lateral mixing trend and add it to the general trend |
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[503] | 77 | ! |
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[5836] | 78 | CASE ( np_lap ) ; CALL dyn_ldf_lap ( kt, ub, vb, ua, va, 1 ) ! iso-level laplacian |
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| 79 | CASE ( np_lap_i ) ; CALL dyn_ldf_iso ( kt ) ! rotated laplacian |
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| 80 | CASE ( np_blp ) ; CALL dyn_ldf_blp ( kt, ub, vb, ua, va ) ! iso-level bi-laplacian |
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[503] | 81 | ! |
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[456] | 82 | END SELECT |
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| 83 | |
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[503] | 84 | IF( l_trddyn ) THEN ! save the horizontal diffusive trends for further diagnostics |
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[456] | 85 | ztrdu(:,:,:) = ua(:,:,:) - ztrdu(:,:,:) |
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| 86 | ztrdv(:,:,:) = va(:,:,:) - ztrdv(:,:,:) |
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[4990] | 87 | CALL trd_dyn( ztrdu, ztrdv, jpdyn_ldf, kt ) |
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[5836] | 88 | CALL wrk_dealloc( jpi,jpj,jpk, ztrdu, ztrdv ) |
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[456] | 89 | ENDIF |
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[503] | 90 | ! ! print sum trends (used for debugging) |
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| 91 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ua, clinfo1=' ldf - Ua: ', mask1=umask, & |
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| 92 | & tab3d_2=va, clinfo2= ' Va: ', mask2=vmask, clinfo3='dyn' ) |
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| 93 | ! |
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[3294] | 94 | IF( nn_timing == 1 ) CALL timing_stop('dyn_ldf') |
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[2715] | 95 | ! |
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[456] | 96 | END SUBROUTINE dyn_ldf |
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| 97 | |
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| 98 | |
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[2528] | 99 | SUBROUTINE dyn_ldf_init |
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[456] | 100 | !!---------------------------------------------------------------------- |
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[2528] | 101 | !! *** ROUTINE dyn_ldf_init *** |
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[456] | 102 | !! |
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| 103 | !! ** Purpose : initializations of the horizontal ocean dynamics physics |
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| 104 | !!---------------------------------------------------------------------- |
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| 105 | INTEGER :: ioptio, ierr ! temporary integers |
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| 106 | !!---------------------------------------------------------------------- |
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[5836] | 107 | ! |
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[503] | 108 | ! ! Namelist nam_dynldf: already read in ldfdyn module |
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[5836] | 109 | ! |
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[503] | 110 | IF(lwp) THEN ! Namelist print |
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[456] | 111 | WRITE(numout,*) |
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[2528] | 112 | WRITE(numout,*) 'dyn_ldf_init : Choice of the lateral diffusive operator on dynamics' |
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[456] | 113 | WRITE(numout,*) '~~~~~~~~~~~' |
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[503] | 114 | WRITE(numout,*) ' Namelist nam_dynldf : set lateral mixing parameters (type, direction, coefficients)' |
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[5836] | 115 | WRITE(numout,*) ' laplacian operator ln_dynldf_lap = ', ln_dynldf_lap |
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| 116 | WRITE(numout,*) ' bilaplacian operator ln_dynldf_blp = ', ln_dynldf_blp |
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| 117 | WRITE(numout,*) ' iso-level ln_dynldf_lev = ', ln_dynldf_lev |
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| 118 | WRITE(numout,*) ' horizontal (geopotential) ln_dynldf_hor = ', ln_dynldf_hor |
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| 119 | WRITE(numout,*) ' iso-neutral ln_dynldf_iso = ', ln_dynldf_iso |
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[456] | 120 | ENDIF |
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[5836] | 121 | ! ! use of lateral operator or not |
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| 122 | nldf = np_ERROR |
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[456] | 123 | ioptio = 0 |
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[5836] | 124 | IF( ln_dynldf_lap ) ioptio = ioptio + 1 |
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| 125 | IF( ln_dynldf_blp ) ioptio = ioptio + 1 |
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| 126 | IF( ioptio > 1 ) CALL ctl_stop( 'dyn_ldf_init: use ONE or NONE of the 2 lap/bilap operator type on momentum' ) |
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| 127 | IF( ioptio == 0 ) nldf = np_no_ldf ! No lateral mixing operator |
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| 128 | ! |
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| 129 | IF( nldf /= np_no_ldf ) THEN ! direction ==>> type of operator |
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| 130 | ioptio = 0 |
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| 131 | IF( ln_dynldf_lev ) ioptio = ioptio + 1 |
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| 132 | IF( ln_dynldf_hor ) ioptio = ioptio + 1 |
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| 133 | IF( ln_dynldf_iso ) ioptio = ioptio + 1 |
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| 134 | IF( ioptio > 1 ) CALL ctl_stop( ' use only ONE direction (level/hor/iso)' ) |
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| 135 | IF( ioptio == 0 ) CALL ctl_stop( ' use at least ONE direction (level/hor/iso)' ) |
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| 136 | ! |
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| 137 | ! ! Set nldf, the type of lateral diffusion, from ln_dynldf_... logicals |
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| 138 | ierr = 0 |
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| 139 | IF ( ln_dynldf_lap ) THEN ! laplacian operator |
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| 140 | IF ( ln_zco ) THEN ! z-coordinate |
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| 141 | IF ( ln_dynldf_lev ) nldf = np_lap ! iso-level = horizontal (no rotation) |
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| 142 | IF ( ln_dynldf_hor ) nldf = np_lap ! iso-level = horizontal (no rotation) |
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| 143 | IF ( ln_dynldf_iso ) nldf = np_lap_i ! iso-neutral ( rotation) |
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| 144 | ENDIF |
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| 145 | IF ( ln_zps ) THEN ! z-coordinate with partial step |
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| 146 | IF ( ln_dynldf_lev ) nldf = np_lap ! iso-level (no rotation) |
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| 147 | IF ( ln_dynldf_hor ) nldf = np_lap ! iso-level (no rotation) |
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| 148 | IF ( ln_dynldf_iso ) nldf = np_lap_i ! iso-neutral ( rotation) |
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| 149 | ENDIF |
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| 150 | IF ( ln_sco ) THEN ! s-coordinate |
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| 151 | IF ( ln_dynldf_lev ) nldf = np_lap ! iso-level = horizontal (no rotation) |
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| 152 | IF ( ln_dynldf_hor ) nldf = np_lap_i ! horizontal ( rotation) |
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| 153 | IF ( ln_dynldf_iso ) nldf = np_lap_i ! iso-neutral ( rotation) |
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| 154 | ENDIF |
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[456] | 155 | ENDIF |
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[5836] | 156 | ! |
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| 157 | IF( ln_dynldf_blp ) THEN ! bilaplacian operator |
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| 158 | IF ( ln_zco ) THEN ! z-coordinate |
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| 159 | IF ( ln_dynldf_lev ) nldf = np_blp ! iso-level = horizontal (no rotation) |
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| 160 | IF ( ln_dynldf_hor ) nldf = np_blp ! iso-level = horizontal (no rotation) |
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| 161 | IF ( ln_dynldf_iso ) ierr = 2 ! iso-neutral ( rotation) |
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| 162 | ENDIF |
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| 163 | IF ( ln_zps ) THEN ! z-coordinate with partial step |
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| 164 | IF ( ln_dynldf_lev ) nldf = np_blp ! iso-level (no rotation) |
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| 165 | IF ( ln_dynldf_hor ) nldf = np_blp ! iso-level (no rotation) |
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| 166 | IF ( ln_dynldf_iso ) ierr = 2 ! iso-neutral ( rotation) |
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| 167 | ENDIF |
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| 168 | IF ( ln_sco ) THEN ! s-coordinate |
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| 169 | IF ( ln_dynldf_lev ) nldf = np_blp ! iso-level (no rotation) |
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| 170 | IF ( ln_dynldf_hor ) ierr = 2 ! horizontal ( rotation) |
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| 171 | IF ( ln_dynldf_iso ) ierr = 2 ! iso-neutral ( rotation) |
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| 172 | ENDIF |
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[456] | 173 | ENDIF |
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[5836] | 174 | ! |
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| 175 | IF( ierr == 2 ) CALL ctl_stop( 'rotated bi-laplacian operator does not exist' ) |
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| 176 | ! |
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| 177 | IF( nldf == np_lap_i ) l_ldfslp = .TRUE. ! rotation require the computation of the slopes |
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| 178 | ! |
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[456] | 179 | ENDIF |
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| 180 | |
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| 181 | IF(lwp) THEN |
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| 182 | WRITE(numout,*) |
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[5836] | 183 | IF( nldf == np_no_ldf ) WRITE(numout,*) ' NO lateral viscosity' |
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| 184 | IF( nldf == np_lap ) WRITE(numout,*) ' iso-level laplacian operator' |
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| 185 | IF( nldf == np_lap_i ) WRITE(numout,*) ' rotated laplacian operator with iso-level background' |
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| 186 | IF( nldf == np_blp ) WRITE(numout,*) ' iso-level bi-laplacian operator' |
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[456] | 187 | ENDIF |
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[503] | 188 | ! |
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[2528] | 189 | END SUBROUTINE dyn_ldf_init |
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[456] | 190 | |
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| 191 | !!====================================================================== |
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| 192 | END MODULE dynldf |
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