[3] | 1 | MODULE ldfdyn |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE ldfdyn *** |
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| 4 | !! Ocean physics: lateral viscosity coefficient |
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| 5 | !!===================================================================== |
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| 6 | |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! ldf_dyn_init : initialization, namelist read, and parameters control |
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| 9 | !! ldf_dyn_c3d : 3D eddy viscosity coefficient initialization |
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| 10 | !! ldf_dyn_c2d : 2D eddy viscosity coefficient initialization |
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| 11 | !! ldf_dyn_c1d : 1D eddy viscosity coefficient initialization |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! * Modules used |
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| 14 | USE oce ! ocean dynamics and tracers |
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| 15 | USE dom_oce ! ocean space and time domain |
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| 16 | USE ldfdyn_oce ! ocean dynamics lateral physics |
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| 17 | USE phycst ! physical constants |
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| 18 | USE ldfslp ! ??? |
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| 19 | USE in_out_manager ! I/O manager |
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| 20 | USE lib_mpp ! distribued 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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| 26 | !! * Routine accessibility |
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| 27 | PUBLIC ldf_dyn_init ! called by opa.F90 |
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| 28 | |
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| 29 | INTERFACE ldf_zpf |
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[71] | 30 | MODULE PROCEDURE ldf_zpf_1d, ldf_zpf_1d_3d, ldf_zpf_3d |
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[3] | 31 | END INTERFACE |
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| 32 | |
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| 33 | !! * Substitutions |
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| 34 | # include "domzgr_substitute.h90" |
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| 35 | !!---------------------------------------------------------------------- |
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| 36 | !! OPA 9.0 , LODYC-IPSL (2003) |
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| 37 | !!---------------------------------------------------------------------- |
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| 38 | |
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| 39 | CONTAINS |
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| 40 | |
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| 41 | SUBROUTINE ldf_dyn_init |
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| 42 | !!---------------------------------------------------------------------- |
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| 43 | !! *** ROUTINE ldf_dyn_init *** |
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| 44 | !! |
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| 45 | !! ** Purpose : set the horizontal ocean dynamics physics |
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| 46 | !! |
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| 47 | !! ** Method : |
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| 48 | !! Eddy viscosity coefficients: |
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| 49 | !! default option : constant coef. ahm0 (namelist) |
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| 50 | !! 'key_dynldf_c1d': depth dependent coef. defined in |
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| 51 | !! in ldf_dyn_c1d routine |
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| 52 | !! 'key_dynldf_c2d': latitude and longitude dependent coef. |
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| 53 | !! defined in ldf_dyn_c2d routine |
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| 54 | !! 'key_dynldf_c3d': latitude, longitude, depth dependent coef. |
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| 55 | !! defined in ldf_dyn_c3d routine |
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| 56 | !! N.B. User defined include files. By default, 3d and 2d coef. |
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| 57 | !! are set to a constant value given in the namelist and the 1d |
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| 58 | !! coefficients are initialized to a hyperbolic tangent vertical |
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| 59 | !! profile. |
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| 60 | !! |
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| 61 | !! Reference : |
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| 62 | !! Madec, G. and M. Imbard, 1996, A global ocean mesh to overcome |
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| 63 | !! the North Pole singularity, Climate Dynamics, 12, 381-388. |
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| 64 | !! |
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| 65 | !! History : |
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| 66 | !! ! 07-97 (G. Madec) from inimix.F split in 2 routines |
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| 67 | !! ! 08-97 (G. Madec) multi dimensional coefficients |
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| 68 | !! 8.5 ! 02-09 (G. Madec) F90: Free form and module |
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| 69 | !!---------------------------------------------------------------------- |
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| 70 | !! * Modules used |
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| 71 | USE ioipsl |
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| 72 | |
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| 73 | !! * Local declarations |
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| 74 | INTEGER :: ioptio ! ??? |
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| 75 | LOGICAL :: ll_print = .FALSE. ! Logical flag for printing viscosity coef. |
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| 76 | |
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| 77 | |
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| 78 | NAMELIST/nam_dynldf/ ln_dynldf_lap , ln_dynldf_bilap, & |
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| 79 | & ln_dynldf_level, ln_dynldf_hor, ln_dynldf_iso, & |
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| 80 | & ahm0, ahmb0 |
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| 81 | !!---------------------------------------------------------------------- |
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| 82 | |
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| 83 | |
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| 84 | ! Define the lateral physics parameters |
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| 85 | ! ====================================== |
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| 86 | |
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| 87 | ! Read Namelist nam_dynldf : Lateral physics |
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| 88 | REWIND( numnam ) |
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| 89 | READ ( numnam, nam_dynldf ) |
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| 90 | |
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| 91 | ! Parameter print |
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| 92 | IF(lwp) THEN |
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| 93 | WRITE(numout,*) |
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| 94 | WRITE(numout,*) 'ldf_dyn : lateral momentum physics' |
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| 95 | WRITE(numout,*) '~~~~~~~' |
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| 96 | WRITE(numout,*) ' Namelist nam_dynldf : set lateral mixing parameters' |
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| 97 | WRITE(numout,*) ' laplacian operator ln_dynldf_lap = ', ln_dynldf_lap |
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| 98 | WRITE(numout,*) ' bilaplacian operator ln_dynldf_bilap = ', ln_dynldf_bilap |
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| 99 | WRITE(numout,*) ' iso-level ln_dynldf_level = ', ln_dynldf_level |
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| 100 | WRITE(numout,*) ' horizontal (geopotential) ln_dynldf_hor = ', ln_dynldf_hor |
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| 101 | WRITE(numout,*) ' iso-neutral ln_dynldf_iso = ', ln_dynldf_iso |
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| 102 | WRITE(numout,*) ' horizontal eddy viscosity ahm0 = ', ahm0 |
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| 103 | WRITE(numout,*) ' background viscosity ahmb0 = ', ahmb0 |
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| 104 | WRITE(numout,*) |
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| 105 | ENDIF |
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| 106 | |
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| 107 | ! Parameter control |
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| 108 | |
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| 109 | ! control the input |
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| 110 | ioptio = 0 |
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| 111 | IF( ln_dynldf_lap ) ioptio = ioptio + 1 |
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| 112 | IF( ln_dynldf_bilap ) ioptio = ioptio + 1 |
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| 113 | IF( ioptio /= 1 ) THEN |
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| 114 | IF(lwp) WRITE(numout,cform_err) |
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| 115 | IF(lwp) WRITE(numout,*) ' use ONE of the 2 lap/bilap operator type on momentum' |
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| 116 | nstop = nstop + 1 |
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| 117 | ENDIF |
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| 118 | ioptio = 0 |
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| 119 | IF( ln_dynldf_level ) ioptio = ioptio + 1 |
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| 120 | IF( ln_dynldf_hor ) ioptio = ioptio + 1 |
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| 121 | IF( ln_dynldf_iso ) ioptio = ioptio + 1 |
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| 122 | IF( ioptio /= 1 ) THEN |
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| 123 | IF(lwp) WRITE(numout,cform_err) |
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| 124 | IF(lwp) WRITE(numout,*) ' use only ONE direction (level/hor/iso)' |
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| 125 | nstop = nstop + 1 |
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| 126 | ENDIF |
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| 127 | |
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[27] | 128 | IF( lk_sco ) THEN ! s-coordinates: rotation required for horizontal or isopycnal direction |
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| 129 | IF( ( ln_dynldf_iso .OR. ln_dynldf_hor ) .AND. .NOT.lk_ldfslp ) THEN |
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| 130 | IF(lwp) WRITE(numout,cform_err) |
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| 131 | IF(lwp) WRITE(numout,*) ' the rotation of the viscous tensor require key_ldfslp' |
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| 132 | IF( .NOT.lk_esopa ) nstop = nstop + 1 |
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| 133 | ENDIF |
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| 134 | ELSE ! z-coordinates with/without partial step: |
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| 135 | ln_dynldf_level = ln_dynldf_level .OR. ln_dynldf_hor ! level mixing = horizontal mixing |
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[3] | 136 | ln_dynldf_hor = .FALSE. |
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| 137 | IF(lwp) WRITE(numout,*) ' horizontal mixing in z-coord or partial steps: force ln_dynldf_level = T' |
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[27] | 138 | IF(lwp) WRITE(numout,*) ' and force ln_dynldf_hor = F' |
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| 139 | IF( ln_dynldf_iso .AND. .NOT.lk_ldfslp ) THEN ! rotation required for isopycnal mixing |
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[3] | 140 | IF(lwp) WRITE(numout,cform_err) |
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[27] | 141 | IF(lwp) WRITE(numout,*) ' the rotation of the viscous tensor require key_ldfslp' |
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| 142 | IF( .NOT.lk_esopa ) nstop = nstop + 1 |
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[3] | 143 | ENDIF |
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| 144 | ENDIF |
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| 145 | |
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| 146 | l_dynldf_lap = ln_dynldf_lap .AND. ln_dynldf_level ! iso-level laplacian operator |
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| 147 | l_dynldf_bilap = ln_dynldf_bilap .AND. ln_dynldf_level ! iso-level bilaplacian operator |
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| 148 | l_dynldf_bilapg = ln_dynldf_bilap .AND. ln_dynldf_hor ! geopotential bilap. (s-coord) |
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| 149 | l_dynldf_iso = ln_dynldf_lap .AND. & ! laplacian operator |
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| 150 | & ( ln_dynldf_iso .OR. ln_dynldf_hor ) ! iso-neutral (z-coord) or horizontal (s-coord) |
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| 151 | |
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| 152 | l_dynzdf_iso = .FALSE. |
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| 153 | IF( l_dynldf_iso ) l_dynzdf_iso = .TRUE. |
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| 154 | |
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| 155 | ioptio = 0 |
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| 156 | IF( l_dynldf_lap ) ioptio = ioptio + 1 |
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| 157 | IF( l_dynldf_bilap ) ioptio = ioptio + 1 |
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| 158 | IF( l_dynldf_bilapg ) ioptio = ioptio + 1 |
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| 159 | IF( l_dynldf_iso ) ioptio = ioptio + 1 |
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| 160 | IF( ioptio /= 1 ) THEN |
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| 161 | IF(lwp) WRITE(numout,cform_err) |
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| 162 | IF(lwp) WRITE(numout,*) ' this combination of operator and direction has not been implemented' |
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| 163 | nstop = nstop + 1 |
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| 164 | ENDIF |
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| 165 | IF( lk_esopa ) THEN |
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| 166 | l_dynldf_lap = .TRUE. ; l_dynldf_bilap = .TRUE. ; l_dynldf_bilapg = .TRUE. |
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| 167 | l_dynldf_iso = .TRUE. ; l_dynzdf_iso = .TRUE. |
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| 168 | IF(lwp ) WRITE(numout,*) ' esopa test: use all lateral physics options' |
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| 169 | ENDIF |
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| 170 | |
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| 171 | ! control print |
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| 172 | IF( l_dynldf_lap .AND. lwp ) WRITE(numout,*) ' iso-level laplacian momentum operator' |
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| 173 | IF( l_dynldf_bilap .AND. lwp ) WRITE(numout,*) ' iso-level bilaplacian momentum operator' |
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| 174 | IF( l_dynldf_bilapg .AND. lwp ) WRITE(numout,*) ' geopotential bilaplacian momentum operator' |
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| 175 | IF( l_dynldf_iso .AND. lwp ) WRITE(numout,*) ' iso-neutral laplacian momentum operator' |
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| 176 | |
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| 177 | ! ... Space variation of eddy coefficients |
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| 178 | ioptio = 0 |
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| 179 | #if defined key_dynldf_c3d |
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| 180 | IF(lwp) WRITE(numout,*) ' momentum mixing coef. = F( latitude, longitude, depth)' |
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| 181 | ioptio = ioptio+1 |
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| 182 | #endif |
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| 183 | #if defined key_dynldf_c2d |
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| 184 | IF(lwp) WRITE(numout,*) ' momentum mixing coef. = F( latitude, longitude)' |
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| 185 | ioptio = ioptio+1 |
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| 186 | #endif |
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| 187 | #if defined key_dynldf_c1d |
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| 188 | IF(lwp) WRITE(numout,*) ' momentum mixing coef. = F( depth )' |
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| 189 | ioptio = ioptio+1 |
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| 190 | IF( lk_sco ) THEN |
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| 191 | IF(lwp) WRITE(numout,cform_err) |
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| 192 | IF(lwp) WRITE(numout,*) ' key_dynldf_c1d cannot be used in s-coordinate (key_s_coord)' |
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| 193 | nstop = nstop + 1 |
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| 194 | ENDIF |
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| 195 | #endif |
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| 196 | IF( ioptio == 0 ) THEN |
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| 197 | IF(lwp) WRITE(numout,*) ' momentum mixing coef. = constant (default option)' |
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| 198 | ELSEIF( ioptio > 1 ) THEN |
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| 199 | IF(lwp) WRITE(numout,cform_err) |
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| 200 | IF(lwp) WRITE(numout,*) ' use only one of the following keys:', & |
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| 201 | ' key_dynldf_c3d, key_dynldf_c2d, key_dynldf_c1d' |
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| 202 | nstop = nstop + 1 |
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| 203 | ENDIF |
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| 204 | |
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| 205 | |
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| 206 | IF( l_dynldf_bilap .OR. l_dynldf_bilapg ) THEN |
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| 207 | IF(lwp) WRITE(numout,*) ' biharmonic momentum diffusion' |
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| 208 | IF( ahm0 > 0 .AND. .NOT. lk_esopa ) THEN |
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| 209 | IF(lwp) WRITE(numout,cform_err) |
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| 210 | IF(lwp) WRITE(numout,*) 'The horizontal viscosity coef. ahm0 must be negative' |
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| 211 | nstop = nstop + 1 |
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| 212 | ENDIF |
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| 213 | ELSE |
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| 214 | IF(lwp) WRITE(numout,*) ' harmonic momentum diff. (default)' |
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| 215 | IF( ahm0 < 0 .AND. .NOT. lk_esopa ) THEN |
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| 216 | IF(lwp) WRITE(numout,cform_err) |
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| 217 | IF(lwp) WRITE(numout,*) ' The horizontal viscosity coef. ahm0 must be positive' |
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| 218 | nstop = nstop + 1 |
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| 219 | ENDIF |
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| 220 | ENDIF |
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| 221 | |
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| 222 | |
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| 223 | ! Lateral eddy viscosity |
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| 224 | ! ====================== |
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| 225 | |
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| 226 | #if defined key_dynldf_c3d |
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| 227 | CALL ldf_dyn_c3d( ll_print ) ! ahm = 3D coef. = F( longitude, latitude, depth ) |
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| 228 | #elif defined key_dynldf_c2d |
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| 229 | CALL ldf_dyn_c2d( ll_print ) ! ahm = 1D coef. = F( longitude, latitude ) |
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| 230 | #elif defined key_dynldf_c1d |
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| 231 | CALL ldf_dyn_c1d( ll_print ) ! ahm = 1D coef. = F( depth ) |
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| 232 | #else |
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| 233 | ! Constant coefficients |
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| 234 | IF(lwp) WRITE(numout,*) |
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| 235 | IF(lwp) WRITE(numout,*) 'inildf: constant eddy viscosity coef. ' |
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| 236 | IF(lwp) WRITE(numout,*) '~~~~~~' |
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| 237 | IF(lwp) WRITE(numout,*) ' ahm1 = ahm2 = ahm0 = ',ahm0 |
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| 238 | #endif |
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| 239 | |
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| 240 | END SUBROUTINE ldf_dyn_init |
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| 241 | |
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| 242 | #if defined key_dynldf_c3d |
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| 243 | # include "ldfdyn_c3d.h90" |
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| 244 | #elif defined key_dynldf_c2d |
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| 245 | # include "ldfdyn_c2d.h90" |
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| 246 | #elif defined key_dynldf_c1d |
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| 247 | # include "ldfdyn_c1d.h90" |
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| 248 | #endif |
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| 249 | |
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| 250 | |
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| 251 | SUBROUTINE ldf_zpf_1d( ld_print, pdam, pwam, pbot, pdep, pah ) |
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| 252 | !!---------------------------------------------------------------------- |
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| 253 | !! *** ROUTINE ldf_zpf *** |
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| 254 | !! |
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| 255 | !! ** Purpose : vertical adimensional profile for eddy coefficient |
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| 256 | !! |
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| 257 | !! ** Method : 1D eddy viscosity coefficients ( depth ) |
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| 258 | !! |
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| 259 | !!---------------------------------------------------------------------- |
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| 260 | !! * Arguments |
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| 261 | LOGICAL , INTENT (in ) :: ld_print ! If true, output arrays on numout |
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| 262 | REAL(wp), INTENT (in ) :: & |
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| 263 | pdam, & ! depth of the inflection point |
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| 264 | pwam, & ! width of inflection |
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| 265 | pbot ! battom value (0<pbot<= 1) |
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| 266 | REAL(wp), INTENT (in ), DIMENSION(jpk) :: & |
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| 267 | pdep ! depth of the gridpoint (T, U, V, F) |
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| 268 | REAL(wp), INTENT (inout), DIMENSION(jpk) :: & |
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| 269 | pah ! adimensional vertical profile |
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| 270 | |
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| 271 | !! * Local variables |
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| 272 | INTEGER :: jk ! dummy loop indices |
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| 273 | REAL(wp) :: zm00, zm01, zmhb, zmhs ! temporary scalars |
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| 274 | !!---------------------------------------------------------------------- |
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| 275 | |
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| 276 | zm00 = TANH( ( pdam - gdept(1 ) ) / pwam ) |
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| 277 | zm01 = TANH( ( pdam - gdept(jpkm1) ) / pwam ) |
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| 278 | zmhs = zm00 / zm01 |
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| 279 | zmhb = ( 1.e0 - pbot ) / ( 1.e0 - zmhs ) / zm01 |
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| 280 | |
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| 281 | DO jk = 1, jpk |
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| 282 | pah(jk) = 1.e0 + zmhb * ( zm00 - TANH( ( pdam - pdep(jk) ) / pwam ) ) |
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| 283 | END DO |
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| 284 | |
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| 285 | ! Control print |
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| 286 | IF(lwp .AND. ld_print ) THEN |
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| 287 | WRITE(numout,*) |
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| 288 | WRITE(numout,*) ' ahm profile : ' |
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| 289 | WRITE(numout,*) |
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| 290 | WRITE(numout,'(" jk ahm "," depth t-level " )') |
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| 291 | DO jk = 1, jpk |
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| 292 | WRITE(numout,'(i6,2f12.4,3x,2f12.4)') jk, pah(jk), pdep(jk) |
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| 293 | END DO |
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| 294 | ENDIF |
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| 295 | |
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| 296 | END SUBROUTINE ldf_zpf_1d |
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| 297 | |
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| 298 | |
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[71] | 299 | SUBROUTINE ldf_zpf_1d_3d( ld_print, pdam, pwam, pbot, pdep, pah ) |
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| 300 | !!---------------------------------------------------------------------- |
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| 301 | !! *** ROUTINE ldf_zpf *** |
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| 302 | !! |
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| 303 | !! ** Purpose : vertical adimensional profile for eddy coefficient |
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| 304 | !! |
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| 305 | !! ** Method : 1D eddy viscosity coefficients ( depth ) |
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| 306 | !! |
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| 307 | !!---------------------------------------------------------------------- |
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| 308 | !! * Arguments |
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| 309 | LOGICAL , INTENT (in ) :: ld_print ! If true, output arrays on numout |
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| 310 | REAL(wp), INTENT (in ) :: & |
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| 311 | pdam, & ! depth of the inflection point |
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| 312 | pwam, & ! width of inflection |
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| 313 | pbot ! battom value (0<pbot<= 1) |
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| 314 | REAL(wp), INTENT (in ), DIMENSION(jpk) :: & |
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| 315 | pdep ! depth of the gridpoint (T, U, V, F) |
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| 316 | REAL(wp), INTENT (inout), DIMENSION(jpi,jpj,jpk) :: & |
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| 317 | pah ! adimensional vertical profile |
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| 318 | |
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| 319 | !! * Local variables |
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| 320 | INTEGER :: jk ! dummy loop indices |
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| 321 | REAL(wp) :: zm00, zm01, zmhb, zmhs, zcf ! temporary scalars |
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| 322 | !!---------------------------------------------------------------------- |
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| 323 | |
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| 324 | zm00 = TANH( ( pdam - gdept(1 ) ) / pwam ) |
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| 325 | zm01 = TANH( ( pdam - gdept(jpkm1) ) / pwam ) |
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| 326 | zmhs = zm00 / zm01 |
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| 327 | zmhb = ( 1.e0 - pbot ) / ( 1.e0 - zmhs ) / zm01 |
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| 328 | |
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| 329 | DO jk = 1, jpk |
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| 330 | zcf = 1.e0 + zmhb * ( zm00 - TANH( ( pdam - pdep(jk) ) / pwam ) ) |
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| 331 | pah(:,:,jk) = zcf |
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| 332 | END DO |
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| 333 | |
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| 334 | ! Control print |
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| 335 | IF(lwp .AND. ld_print ) THEN |
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| 336 | WRITE(numout,*) |
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| 337 | WRITE(numout,*) ' ahm profile : ' |
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| 338 | WRITE(numout,*) |
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| 339 | WRITE(numout,'(" jk ahm "," depth t-level " )') |
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| 340 | DO jk = 1, jpk |
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| 341 | WRITE(numout,'(i6,2f12.4,3x,2f12.4)') jk, pah(:,:,jk), pdep(jk) |
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| 342 | END DO |
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| 343 | ENDIF |
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| 344 | |
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| 345 | END SUBROUTINE ldf_zpf_1d_3d |
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| 346 | |
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| 347 | |
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[3] | 348 | SUBROUTINE ldf_zpf_3d( ld_print, pdam, pwam, pbot, pdep, pah ) |
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| 349 | !!---------------------------------------------------------------------- |
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| 350 | !! *** ROUTINE ldf_zpf *** |
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| 351 | !! |
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| 352 | !! ** Purpose : vertical adimensional profile for eddy coefficient |
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| 353 | !! |
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| 354 | !! ** Method : 3D for partial step or s-coordinate |
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| 355 | !! |
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| 356 | !!---------------------------------------------------------------------- |
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| 357 | !! * Arguments |
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| 358 | LOGICAL , INTENT (in ) :: ld_print ! If true, output arrays on numout |
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| 359 | REAL(wp), INTENT (in ) :: & |
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| 360 | pdam, & ! depth of the inflection point |
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| 361 | pwam, & ! width of inflection |
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| 362 | pbot ! reduction factor (surface value / bottom value) |
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| 363 | REAL(wp), INTENT (in ), DIMENSION(jpi,jpj,jpk) :: & |
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| 364 | pdep ! dep of the gridpoint (T, U, V, F) |
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| 365 | REAL(wp), INTENT (inout), DIMENSION(jpi,jpj,jpk) :: & |
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| 366 | pah ! adimensional vertical profile |
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| 367 | |
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| 368 | !! * Local variables |
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| 369 | INTEGER :: jk ! dummy loop indices |
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| 370 | REAL(wp) :: zm00, zm01, zmhb, zmhs ! temporary scalars |
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| 371 | !!---------------------------------------------------------------------- |
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| 372 | |
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| 373 | zm00 = TANH( ( pdam - gdept(1 ) ) / pwam ) |
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| 374 | zm01 = TANH( ( pdam - gdept(jpkm1) ) / pwam ) |
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| 375 | zmhs = zm00 / zm01 |
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| 376 | zmhb = ( 1.e0 - pbot ) / ( 1.e0 - zmhs ) / zm01 |
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| 377 | |
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| 378 | DO jk = 1, jpk |
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| 379 | pah(:,:,jk) = 1.e0 + zmhb * ( zm00 - TANH( ( pdam - pdep(:,:,jk) ) / pwam ) ) |
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| 380 | END DO |
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| 381 | |
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| 382 | ! Control print |
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| 383 | IF(lwp .AND. ld_print ) THEN |
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| 384 | WRITE(numout,*) |
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| 385 | WRITE(numout,*) ' ahm profile : ' |
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| 386 | WRITE(numout,*) |
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| 387 | WRITE(numout,'(" jk ahm "," depth t-level " )') |
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| 388 | DO jk = 1, jpk |
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| 389 | WRITE(numout,'(i6,2f12.4,3x,2f12.4)') jk, pah(1,1,jk), pdep(1,1,jk) |
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| 390 | END DO |
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| 391 | ENDIF |
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| 392 | |
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| 393 | END SUBROUTINE ldf_zpf_3d |
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| 394 | !!====================================================================== |
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| 395 | END MODULE ldfdyn |
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