[458] | 1 | MODULE traldf |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE traldf *** |
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| 4 | !! Ocean Active tracers : lateral diffusive trends |
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| 5 | !!===================================================================== |
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[2024] | 6 | !! History : 9.0 ! 2005-11 (G. Madec) Original code |
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| 7 | !! NEMO 3.0 ! 2008-01 (C. Ethe, G. Madec) merge TRC-TRA |
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[458] | 8 | !!---------------------------------------------------------------------- |
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[503] | 9 | |
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| 10 | !!---------------------------------------------------------------------- |
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[2104] | 11 | !! tra_ldf : update the tracer trend with the lateral diffusion |
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| 12 | !! tra_ldf_init : initialization, namelist read, and parameters control |
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| 13 | !! ldf_ano : compute lateral diffusion for constant T-S profiles |
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[458] | 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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| 17 | USE phycst ! physical constants |
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| 18 | USE ldftra_oce ! ocean tracer lateral physics |
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| 19 | USE ldfslp ! ??? |
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| 20 | USE traldf_bilapg ! lateral mixing (tra_ldf_bilapg routine) |
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| 21 | USE traldf_bilap ! lateral mixing (tra_ldf_bilap routine) |
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| 22 | USE traldf_iso ! lateral mixing (tra_ldf_iso routine) |
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[2236] | 23 | USE traldf_iso_grif ! lateral mixing (tra_ldf_iso_grif routine) |
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[458] | 24 | USE traldf_lap ! lateral mixing (tra_ldf_lap routine) |
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[2024] | 25 | USE trdmod_oce ! ocean space and time domain |
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| 26 | USE trdtra ! ocean active tracers trends |
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[458] | 27 | USE prtctl ! Print control |
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| 28 | USE in_out_manager ! I/O manager |
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| 29 | USE lib_mpp ! distribued memory computing library |
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| 30 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 31 | |
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| 32 | IMPLICIT NONE |
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| 33 | PRIVATE |
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| 34 | |
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[2024] | 35 | PUBLIC tra_ldf ! called by step.F90 |
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| 36 | PUBLIC tra_ldf_init ! called by opa.F90 |
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| 37 | ! |
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| 38 | INTEGER :: nldf = 0 ! type of lateral diffusion used defined from ln_traldf_... namlist logicals) |
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[458] | 39 | #if defined key_traldf_ano |
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[2104] | 40 | REAL, DIMENSION(jpi,jpj,jpk) :: t0_ldf, s0_ldf ! lateral diffusion trends of T & S for a constant profile |
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[458] | 41 | #endif |
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| 42 | |
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| 43 | !! * Substitutions |
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| 44 | # include "domzgr_substitute.h90" |
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| 45 | # include "vectopt_loop_substitute.h90" |
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[503] | 46 | !!---------------------------------------------------------------------- |
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[2287] | 47 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[1152] | 48 | !! $Id$ |
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[2399] | 49 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[503] | 50 | !!---------------------------------------------------------------------- |
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[458] | 51 | CONTAINS |
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| 52 | |
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| 53 | SUBROUTINE tra_ldf( kt ) |
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| 54 | !!---------------------------------------------------------------------- |
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| 55 | !! *** ROUTINE tra_ldf *** |
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| 56 | !! |
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| 57 | !! ** Purpose : compute the lateral ocean tracer physics. |
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| 58 | !!---------------------------------------------------------------------- |
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[503] | 59 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 60 | !! |
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[2024] | 61 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: ztrdt, ztrds |
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[458] | 62 | !!---------------------------------------------------------------------- |
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| 63 | |
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[2024] | 64 | IF( l_trdtra ) THEN !* Save ta and sa trends |
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| 65 | ALLOCATE( ztrdt(jpi,jpj,jpk) ) ; ztrdt(:,:,:) = tsa(:,:,:,jp_tem) |
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| 66 | ALLOCATE( ztrds(jpi,jpj,jpk) ) ; ztrds(:,:,:) = tsa(:,:,:,jp_sal) |
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[458] | 67 | ENDIF |
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| 68 | |
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| 69 | SELECT CASE ( nldf ) ! compute lateral mixing trend and add it to the general trend |
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[2399] | 70 | CASE ( 0 ) ; CALL tra_ldf_lap ( kt, 'TRA', gtsu, gtsv, tsb, tsa, jpts ) ! iso-level laplacian |
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| 71 | CASE ( 1 ) ! rotated laplacian |
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| 72 | IF( ln_traldf_grif ) THEN |
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| 73 | CALL tra_ldf_iso_grif( kt, 'TRA', gtsu, gtsv, tsb, tsa, jpts, ahtb0 ) ! Griffies operator |
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| 74 | ELSE |
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| 75 | CALL tra_ldf_iso ( kt, 'TRA', gtsu, gtsv, tsb, tsa, jpts, ahtb0 ) ! Madec operator |
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[2236] | 76 | ENDIF |
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[2399] | 77 | CASE ( 2 ) ; CALL tra_ldf_bilap ( kt, 'TRA', gtsu, gtsv, tsb, tsa, jpts ) ! iso-level bilaplacian |
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| 78 | CASE ( 3 ) ; CALL tra_ldf_bilapg ( kt, 'TRA', tsb, tsa, jpts ) ! s-coord. geopot. bilap. |
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[503] | 79 | ! |
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[2399] | 80 | CASE ( -1 ) ! esopa: test all possibility with control print |
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[2082] | 81 | CALL tra_ldf_lap ( kt, 'TRA', gtsu, gtsv, tsb, tsa, jpts ) |
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[2034] | 82 | CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' ldf0 - Ta: ', mask1=tmask, & |
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| 83 | & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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[2399] | 84 | IF( ln_traldf_grif ) THEN |
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| 85 | CALL tra_ldf_iso_grif( kt, 'TRA', gtsu, gtsv, tsb, tsa, jpts, ahtb0 ) |
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[2236] | 86 | ELSE |
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[2399] | 87 | CALL tra_ldf_iso ( kt, 'TRA', gtsu, gtsv, tsb, tsa, jpts, ahtb0 ) |
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[2236] | 88 | ENDIF |
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[2034] | 89 | CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' ldf1 - Ta: ', mask1=tmask, & |
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| 90 | & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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[2082] | 91 | CALL tra_ldf_bilap ( kt, 'TRA', gtsu, gtsv, tsb, tsa, jpts ) |
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[2034] | 92 | CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' ldf2 - Ta: ', mask1=tmask, & |
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| 93 | & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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[2082] | 94 | CALL tra_ldf_bilapg( kt, 'TRA', tsb, tsa, jpts ) |
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[2034] | 95 | CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' ldf3 - Ta: ', mask1=tmask, & |
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| 96 | & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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[458] | 97 | END SELECT |
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| 98 | |
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| 99 | #if defined key_traldf_ano |
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[2024] | 100 | tsa(:,:,:,jp_tem) = tsa(:,:,:,jp_tem) - t0_ldf(:,:,:) ! anomaly: substract the reference diffusivity |
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| 101 | tsa(:,:,:,jp_sal) = tsa(:,:,:,jp_sal) - s0_ldf(:,:,:) |
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[458] | 102 | #endif |
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[2024] | 103 | |
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[503] | 104 | IF( l_trdtra ) THEN ! save the horizontal diffusive trends for further diagnostics |
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[2024] | 105 | ztrdt(:,:,:) = tsa(:,:,:,jp_tem) - ztrdt(:,:,:) |
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| 106 | ztrds(:,:,:) = tsa(:,:,:,jp_sal) - ztrds(:,:,:) |
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| 107 | CALL trd_tra( kt, 'TRA', jp_tem, jptra_trd_ldf, ztrdt ) |
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| 108 | CALL trd_tra( kt, 'TRA', jp_sal, jptra_trd_ldf, ztrds ) |
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| 109 | DEALLOCATE( ztrdt ) ; DEALLOCATE( ztrds ) |
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[458] | 110 | ENDIF |
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| 111 | ! ! print mean trends (used for debugging) |
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[2024] | 112 | IF(ln_ctl) CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' ldf - Ta: ', mask1=tmask, & |
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| 113 | & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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[503] | 114 | ! |
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[458] | 115 | END SUBROUTINE tra_ldf |
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| 116 | |
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| 117 | |
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[2024] | 118 | SUBROUTINE tra_ldf_init |
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[458] | 119 | !!---------------------------------------------------------------------- |
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[2024] | 120 | !! *** ROUTINE tra_ldf_init *** |
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[458] | 121 | !! |
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| 122 | !! ** Purpose : Choice of the operator for the lateral tracer diffusion |
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| 123 | !! |
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[1601] | 124 | !! ** Method : set nldf from the namtra_ldf logicals |
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[458] | 125 | !! nldf == -1 ESOPA test: ALL operators are used |
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| 126 | !! nldf == 0 laplacian operator |
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| 127 | !! nldf == 1 Rotated laplacian operator |
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| 128 | !! nldf == 2 bilaplacian operator |
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| 129 | !! nldf == 3 Rotated bilaplacian |
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| 130 | !!---------------------------------------------------------------------- |
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| 131 | INTEGER :: ioptio, ierr ! temporary integers |
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| 132 | ! |
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| 133 | !!---------------------------------------------------------------------- |
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| 134 | |
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| 135 | ! Define the lateral mixing oparator for tracers |
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| 136 | ! =============================================== |
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| 137 | |
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[503] | 138 | IF(lwp) THEN ! Namelist print |
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[458] | 139 | WRITE(numout,*) |
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[2024] | 140 | WRITE(numout,*) 'tra_ldf_init : lateral tracer diffusive operator' |
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[458] | 141 | WRITE(numout,*) '~~~~~~~~~~~' |
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[2371] | 142 | WRITE(numout,*) ' Namelist namtra_ldf already read in ldftra module' |
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| 143 | WRITE(numout,*) ' see ldf_tra_init report for lateral mixing parameters' |
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| 144 | WRITE(numout,*) |
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[458] | 145 | ENDIF |
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| 146 | |
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[503] | 147 | ! ! control the input |
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[458] | 148 | ioptio = 0 |
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| 149 | IF( ln_traldf_lap ) ioptio = ioptio + 1 |
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| 150 | IF( ln_traldf_bilap ) ioptio = ioptio + 1 |
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[620] | 151 | IF( ioptio > 1 ) CALL ctl_stop( ' use ONE or NONE of the 2 lap/bilap operator type on tracer' ) |
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| 152 | IF( ioptio == 0 ) nldf = -2 ! No lateral diffusion |
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[458] | 153 | ioptio = 0 |
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| 154 | IF( ln_traldf_level ) ioptio = ioptio + 1 |
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| 155 | IF( ln_traldf_hor ) ioptio = ioptio + 1 |
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| 156 | IF( ln_traldf_iso ) ioptio = ioptio + 1 |
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[503] | 157 | IF( ioptio /= 1 ) CALL ctl_stop( ' use only ONE direction (level/hor/iso)' ) |
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[458] | 158 | |
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| 159 | ! defined the type of lateral diffusion from ln_traldf_... logicals |
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[902] | 160 | ! CAUTION : nldf = 1 is used in trazdf_imp, change it carefully |
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[458] | 161 | ierr = 0 |
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[620] | 162 | IF( ln_traldf_lap ) THEN ! laplacian operator |
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[458] | 163 | IF ( ln_zco ) THEN ! z-coordinate |
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| 164 | IF ( ln_traldf_level ) nldf = 0 ! iso-level (no rotation) |
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| 165 | IF ( ln_traldf_hor ) nldf = 0 ! horizontal (no rotation) |
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| 166 | IF ( ln_traldf_iso ) nldf = 1 ! isoneutral ( rotation) |
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| 167 | ENDIF |
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| 168 | IF ( ln_zps ) THEN ! z-coordinate |
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| 169 | IF ( ln_traldf_level ) ierr = 1 ! iso-level not allowed |
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| 170 | IF ( ln_traldf_hor ) nldf = 0 ! horizontal (no rotation) |
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| 171 | IF ( ln_traldf_iso ) nldf = 1 ! isoneutral ( rotation) |
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| 172 | ENDIF |
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| 173 | IF ( ln_sco ) THEN ! z-coordinate |
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| 174 | IF ( ln_traldf_level ) nldf = 0 ! iso-level (no rotation) |
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| 175 | IF ( ln_traldf_hor ) nldf = 1 ! horizontal ( rotation) |
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| 176 | IF ( ln_traldf_iso ) nldf = 1 ! isoneutral ( rotation) |
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| 177 | ENDIF |
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| 178 | ENDIF |
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| 179 | |
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| 180 | IF( ln_traldf_bilap ) THEN ! bilaplacian operator |
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| 181 | IF ( ln_zco ) THEN ! z-coordinate |
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| 182 | IF ( ln_traldf_level ) nldf = 2 ! iso-level (no rotation) |
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| 183 | IF ( ln_traldf_hor ) nldf = 2 ! horizontal (no rotation) |
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| 184 | IF ( ln_traldf_iso ) ierr = 2 ! isoneutral ( rotation) |
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| 185 | ENDIF |
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| 186 | IF ( ln_zps ) THEN ! z-coordinate |
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| 187 | IF ( ln_traldf_level ) ierr = 1 ! iso-level not allowed |
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| 188 | IF ( ln_traldf_hor ) nldf = 2 ! horizontal (no rotation) |
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| 189 | IF ( ln_traldf_iso ) ierr = 2 ! isoneutral ( rotation) |
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| 190 | ENDIF |
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| 191 | IF ( ln_sco ) THEN ! z-coordinate |
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| 192 | IF ( ln_traldf_level ) nldf = 2 ! iso-level (no rotation) |
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| 193 | IF ( ln_traldf_hor ) nldf = 3 ! horizontal ( rotation) |
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| 194 | IF ( ln_traldf_iso ) ierr = 2 ! isoneutral ( rotation) |
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| 195 | ENDIF |
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| 196 | ENDIF |
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| 197 | |
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[503] | 198 | IF( ierr == 1 ) CALL ctl_stop( ' iso-level in z-coordinate - partial step, not allowed' ) |
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| 199 | IF( ierr == 2 ) CALL ctl_stop( ' isoneutral bilaplacian operator does not exist' ) |
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| 200 | IF( lk_traldf_eiv .AND. .NOT.ln_traldf_iso ) & |
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| 201 | CALL ctl_stop( ' eddy induced velocity on tracers', & |
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| 202 | & ' the eddy induced velocity on tracers requires isopycnal laplacian diffusion' ) |
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[458] | 203 | IF( nldf == 1 .OR. nldf == 3 ) THEN ! rotation |
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[503] | 204 | IF( .NOT.lk_ldfslp ) CALL ctl_stop( ' the rotation of the diffusive tensor require key_ldfslp' ) |
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[915] | 205 | l_traldf_rot = .TRUE. ! needed for trazdf_imp |
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[458] | 206 | ENDIF |
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| 207 | |
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| 208 | IF( lk_esopa ) THEN |
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| 209 | IF(lwp) WRITE(numout,*) ' esopa control: use all lateral physics options' |
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| 210 | nldf = -1 |
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| 211 | ENDIF |
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| 212 | |
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| 213 | IF(lwp) THEN |
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| 214 | WRITE(numout,*) |
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[620] | 215 | IF( nldf == -2 ) WRITE(numout,*) ' NO lateral diffusion' |
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| 216 | IF( nldf == -1 ) WRITE(numout,*) ' ESOPA test All scheme used' |
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| 217 | IF( nldf == 0 ) WRITE(numout,*) ' laplacian operator' |
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| 218 | IF( nldf == 1 ) WRITE(numout,*) ' Rotated laplacian operator' |
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| 219 | IF( nldf == 2 ) WRITE(numout,*) ' bilaplacian operator' |
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| 220 | IF( nldf == 3 ) WRITE(numout,*) ' Rotated bilaplacian' |
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[458] | 221 | ENDIF |
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| 222 | |
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| 223 | ! Reference T & S diffusivity (if necessary) |
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| 224 | ! =========================== |
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| 225 | CALL ldf_ano |
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[503] | 226 | ! |
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[2024] | 227 | END SUBROUTINE tra_ldf_init |
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[458] | 228 | |
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| 229 | #if defined key_traldf_ano |
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| 230 | !!---------------------------------------------------------------------- |
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| 231 | !! 'key_traldf_ano' T & S lateral diffusion on anomalies |
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| 232 | !!---------------------------------------------------------------------- |
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| 233 | |
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| 234 | SUBROUTINE ldf_ano |
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| 235 | !!---------------------------------------------------------------------- |
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| 236 | !! *** ROUTINE ldf_ano *** |
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| 237 | !! |
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| 238 | !! ** Purpose : initializations of |
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| 239 | !!---------------------------------------------------------------------- |
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| 240 | USE zdf_oce ! vertical mixing |
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| 241 | USE trazdf ! vertical mixing: double diffusion |
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| 242 | USE zdfddm ! vertical mixing: double diffusion |
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[503] | 243 | !! |
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| 244 | INTEGER :: jk ! Dummy loop indice |
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| 245 | LOGICAL :: llsave ! |
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| 246 | REAL(wp) :: zt0, zs0, z12 ! temporary scalar |
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| 247 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zt_ref, ztb, zavt ! 3D workspace |
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| 248 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zs_ref, zsb ! 3D workspace |
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[458] | 249 | !!---------------------------------------------------------------------- |
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| 250 | |
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| 251 | IF(lwp) THEN |
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| 252 | WRITE(numout,*) |
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| 253 | WRITE(numout,*) 'tra:ldf_ano : lateral diffusion acting on anomalies' |
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| 254 | WRITE(numout,*) '~~~~~~~~~~~' |
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| 255 | ENDIF |
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| 256 | |
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| 257 | ! defined the T & S reference profiles |
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| 258 | ! ------------------------------------ |
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| 259 | zt0 =10.e0 ! homogeneous ocean |
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| 260 | zs0 =35.e0 |
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| 261 | zt_ref(:,:,:) = 10.0 * tmask(:,:,:) |
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| 262 | zs_ref(:,:,:) = 35.0 * tmask(:,:,:) |
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| 263 | IF(lwp) WRITE(numout,*) ' homogeneous ocean T = ', zt0, ' S = ',zs0 |
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| 264 | |
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| 265 | ! ! T & S profile (to be coded +namelist parameter |
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| 266 | |
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| 267 | ! prepare the ldf computation |
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| 268 | ! --------------------------- |
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| 269 | llsave = l_trdtra |
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| 270 | l_trdtra = .false. ! desactivate trend computation |
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| 271 | t0_ldf(:,:,:) = 0.e0 |
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| 272 | s0_ldf(:,:,:) = 0.e0 |
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[2024] | 273 | ztb (:,:,:) = tsb (:,:,:,jp_tem) |
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| 274 | zsb (:,:,:) = tsb (:,:,:,jp_sal) |
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| 275 | ua (:,:,:) = tsa (:,:,:,jp_tem) |
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| 276 | va (:,:,:) = tsa (:,:,:,jp_sal) |
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[458] | 277 | zavt (:,:,:) = avt(:,:,:) |
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[474] | 278 | IF( lk_zdfddm ) THEN CALL ctl_stop( ' key_traldf_ano with key_zdfddm not implemented' ) |
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[458] | 279 | ! set tb, sb to reference values and avr to zero |
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[2024] | 280 | tsb (:,:,:,jp_tem) = zt_ref(:,:,:) |
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| 281 | tsb (:,:,:,jp_sal) = zs_ref(:,:,:) |
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| 282 | tsa (:,:,:,jp_tem) = 0.e0 |
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| 283 | tsa (:,:,:,jp_sal) = 0.e0 |
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| 284 | avt(:,:,:) = 0.e0 |
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[458] | 285 | |
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| 286 | ! Compute the ldf trends |
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| 287 | ! ---------------------- |
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| 288 | CALL tra_ldf( nit000+1 ) ! horizontal components (+1: no more init) |
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| 289 | CALL tra_zdf( nit000 ) ! vertical component (if necessary nit000 to performed the init) |
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| 290 | |
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| 291 | ! finalise the computation and recover all arrays |
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| 292 | ! ----------------------------------------------- |
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| 293 | l_trdtra = llsave |
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| 294 | z12 = 2.e0 |
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| 295 | IF( neuler == 1) z12 = 1.e0 |
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| 296 | IF( ln_zdfexp ) THEN ! ta,sa are the trends |
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[2024] | 297 | t0_ldf(:,:,:) = tsa(:,:,:,jp_tem) |
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| 298 | s0_ldf(:,:,:) = tsa(:,:,:,jp_sal) |
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[458] | 299 | ELSE |
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| 300 | DO jk = 1, jpkm1 |
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[2024] | 301 | t0_ldf(:,:,jk) = ( tsa(:,:,jk,jp_tem) - tsb(:,:,jk,jp_tem) ) / ( z12 *rdttra(jk) ) |
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| 302 | s0_ldf(:,:,jk) = ( tsa(:,:,jk,jp_sal) - tsb(:,:,jk,jp_sal) ) / ( z12 *rdttra(jk) ) |
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[458] | 303 | END DO |
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| 304 | ENDIF |
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[2024] | 305 | tsb(:,:,:,jp_tem) = ztb (:,:,:) |
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| 306 | tsb(:,:,:,jp_sal) = zsb (:,:,:) |
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| 307 | tsa(:,:,:,jp_tem) = ua (:,:,:) |
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| 308 | tsa(:,:,:,jp_sal) = va (:,:,:) |
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| 309 | avt(:,:,:) = zavt(:,:,:) |
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[503] | 310 | ! |
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[458] | 311 | END SUBROUTINE ldf_ano |
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| 312 | |
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| 313 | #else |
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| 314 | !!---------------------------------------------------------------------- |
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| 315 | !! default option : Dummy code NO T & S background profiles |
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| 316 | !!---------------------------------------------------------------------- |
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| 317 | SUBROUTINE ldf_ano |
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| 318 | IF(lwp) THEN |
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| 319 | WRITE(numout,*) |
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| 320 | WRITE(numout,*) 'tra:ldf_ano : lateral diffusion acting on the full fields' |
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| 321 | WRITE(numout,*) '~~~~~~~~~~~' |
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| 322 | ENDIF |
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| 323 | END SUBROUTINE ldf_ano |
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| 324 | #endif |
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| 325 | |
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| 326 | !!====================================================================== |
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[620] | 327 | END MODULE traldf |
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