[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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[5836] | 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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| 8 | !! 3.7 ! 2013-12 (G. Madec) remove the optional computation from T & S anomaly profiles and traldf_bilapg |
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| 9 | !! - ! 2013-12 (F. Lemarie, G. Madec) triad operator (Griffies) + Method of Stabilizing Correction |
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| 10 | !! - ! 2014-01 (G. Madec, S. Masson) restructuration/simplification of lateral diffusive operators |
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[458] | 11 | !!---------------------------------------------------------------------- |
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[503] | 12 | |
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| 13 | !!---------------------------------------------------------------------- |
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[6140] | 14 | !! tra_ldf : update the tracer trend with the lateral diffusion trend |
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| 15 | !! tra_ldf_init : initialization, namelist read, and parameters control |
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[458] | 16 | !!---------------------------------------------------------------------- |
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[6140] | 17 | USE oce ! ocean dynamics and tracers |
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| 18 | USE dom_oce ! ocean space and time domain |
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| 19 | USE phycst ! physical constants |
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| 20 | USE ldftra ! lateral diffusion: eddy diffusivity & EIV coeff. |
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| 21 | USE ldfslp ! lateral diffusion: iso-neutral slope |
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| 22 | USE traldf_lap_blp ! lateral diffusion: laplacian iso-level operator (tra_ldf_lap/_blp routines) |
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| 23 | USE traldf_iso ! lateral diffusion: laplacian iso-neutral standard operator (tra_ldf_iso routine ) |
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| 24 | USE traldf_triad ! lateral diffusion: laplacian iso-neutral triad operator (tra_ldf_triad routine ) |
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| 25 | USE trd_oce ! trends: ocean variables |
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| 26 | USE trdtra ! ocean active tracers trends |
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[4990] | 27 | ! |
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[5836] | 28 | USE prtctl ! Print control |
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| 29 | USE in_out_manager ! I/O manager |
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| 30 | USE lib_mpp ! distribued memory computing library |
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| 31 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 32 | USE timing ! Timing |
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[458] | 33 | |
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| 34 | IMPLICIT NONE |
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| 35 | PRIVATE |
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| 36 | |
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[4990] | 37 | PUBLIC tra_ldf ! called by step.F90 |
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[5836] | 38 | PUBLIC tra_ldf_init ! called by nemogcm.F90 |
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| 39 | |
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[458] | 40 | !! * Substitutions |
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| 41 | # include "vectopt_loop_substitute.h90" |
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[503] | 42 | !!---------------------------------------------------------------------- |
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[9570] | 43 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[1152] | 44 | !! $Id$ |
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[10068] | 45 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[503] | 46 | !!---------------------------------------------------------------------- |
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[458] | 47 | CONTAINS |
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| 48 | |
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| 49 | SUBROUTINE tra_ldf( kt ) |
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| 50 | !!---------------------------------------------------------------------- |
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| 51 | !! *** ROUTINE tra_ldf *** |
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| 52 | !! |
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| 53 | !! ** Purpose : compute the lateral ocean tracer physics. |
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| 54 | !!---------------------------------------------------------------------- |
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[503] | 55 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 56 | !! |
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[9019] | 57 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrdt, ztrds |
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[458] | 58 | !!---------------------------------------------------------------------- |
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[3294] | 59 | ! |
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[9019] | 60 | IF( ln_timing ) CALL timing_start('tra_ldf') |
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[3294] | 61 | ! |
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[2528] | 62 | IF( l_trdtra ) THEN !* Save ta and sa trends |
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[9019] | 63 | ALLOCATE( ztrdt(jpi,jpj,jpk) , ztrds(jpi,jpj,jpk) ) |
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[7753] | 64 | ztrdt(:,:,:) = tsa(:,:,:,jp_tem) |
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| 65 | ztrds(:,:,:) = tsa(:,:,:,jp_sal) |
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[458] | 66 | ENDIF |
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[5836] | 67 | ! |
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[9490] | 68 | SELECT CASE ( nldf_tra ) !* compute lateral mixing trend and add it to the general trend |
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[5836] | 69 | CASE ( np_lap ) ! laplacian: iso-level operator |
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| 70 | CALL tra_ldf_lap ( kt, nit000,'TRA', ahtu, ahtv, gtsu, gtsv, gtui, gtvi, tsb, tsa, jpts, 1 ) |
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| 71 | CASE ( np_lap_i ) ! laplacian: standard iso-neutral operator (Madec) |
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| 72 | CALL tra_ldf_iso ( kt, nit000,'TRA', ahtu, ahtv, gtsu, gtsv, gtui, gtvi, tsb, tsb, tsa, jpts, 1 ) |
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| 73 | CASE ( np_lap_it ) ! laplacian: triad iso-neutral operator (griffies) |
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| 74 | CALL tra_ldf_triad( kt, nit000,'TRA', ahtu, ahtv, gtsu, gtsv, gtui, gtvi, tsb, tsb, tsa, jpts, 1 ) |
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| 75 | CASE ( np_blp , np_blp_i , np_blp_it ) ! bilaplacian: iso-level & iso-neutral operators |
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[9490] | 76 | CALL tra_ldf_blp ( kt, nit000,'TRA', ahtu, ahtv, gtsu, gtsv, gtui, gtvi, tsb , tsa, jpts, nldf_tra ) |
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[458] | 77 | END SELECT |
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[6140] | 78 | ! |
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[5836] | 79 | IF( l_trdtra ) THEN !* save the horizontal diffusive trends for further diagnostics |
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[7753] | 80 | ztrdt(:,:,:) = tsa(:,:,:,jp_tem) - ztrdt(:,:,:) |
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| 81 | ztrds(:,:,:) = tsa(:,:,:,jp_sal) - ztrds(:,:,:) |
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[4990] | 82 | CALL trd_tra( kt, 'TRA', jp_tem, jptra_ldf, ztrdt ) |
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| 83 | CALL trd_tra( kt, 'TRA', jp_sal, jptra_ldf, ztrds ) |
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[9019] | 84 | DEALLOCATE( ztrdt, ztrds ) |
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[458] | 85 | ENDIF |
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[5836] | 86 | ! !* print mean trends (used for debugging) |
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[2528] | 87 | IF(ln_ctl) CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' ldf - Ta: ', mask1=tmask, & |
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| 88 | & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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[503] | 89 | ! |
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[9019] | 90 | IF( ln_timing ) CALL timing_stop('tra_ldf') |
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[3294] | 91 | ! |
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[458] | 92 | END SUBROUTINE tra_ldf |
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| 93 | |
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| 94 | |
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[2528] | 95 | SUBROUTINE tra_ldf_init |
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[458] | 96 | !!---------------------------------------------------------------------- |
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[2528] | 97 | !! *** ROUTINE tra_ldf_init *** |
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[458] | 98 | !! |
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| 99 | !! ** Purpose : Choice of the operator for the lateral tracer diffusion |
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| 100 | !! |
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[9490] | 101 | !! ** Method : set nldf_tra from the namtra_ldf logicals |
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[458] | 102 | !!---------------------------------------------------------------------- |
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[5836] | 103 | INTEGER :: ioptio, ierr ! temporary integers |
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[458] | 104 | !!---------------------------------------------------------------------- |
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[5836] | 105 | ! |
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[9019] | 106 | IF(lwp) THEN !== Namelist print ==! |
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[458] | 107 | WRITE(numout,*) |
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[2528] | 108 | WRITE(numout,*) 'tra_ldf_init : lateral tracer diffusive operator' |
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[7646] | 109 | WRITE(numout,*) '~~~~~~~~~~~~' |
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[6140] | 110 | WRITE(numout,*) ' Namelist namtra_ldf: already read in ldftra module' |
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| 111 | WRITE(numout,*) ' see ldf_tra_init report for lateral mixing parameters' |
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[9490] | 112 | WRITE(numout,*) |
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[5836] | 113 | ! |
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[9490] | 114 | SELECT CASE( nldf_tra ) ! print the choice of operator |
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[9190] | 115 | CASE( np_no_ldf ) ; WRITE(numout,*) ' ==>>> NO lateral diffusion' |
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| 116 | CASE( np_lap ) ; WRITE(numout,*) ' ==>>> laplacian iso-level operator' |
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| 117 | CASE( np_lap_i ) ; WRITE(numout,*) ' ==>>> Rotated laplacian operator (standard)' |
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| 118 | CASE( np_lap_it ) ; WRITE(numout,*) ' ==>>> Rotated laplacian operator (triad)' |
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| 119 | CASE( np_blp ) ; WRITE(numout,*) ' ==>>> bilaplacian iso-level operator' |
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| 120 | CASE( np_blp_i ) ; WRITE(numout,*) ' ==>>> Rotated bilaplacian operator (standard)' |
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| 121 | CASE( np_blp_it ) ; WRITE(numout,*) ' ==>>> Rotated bilaplacian operator (triad)' |
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[6140] | 122 | END SELECT |
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[458] | 123 | ENDIF |
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[503] | 124 | ! |
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[2528] | 125 | END SUBROUTINE tra_ldf_init |
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[458] | 126 | |
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| 127 | !!====================================================================== |
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[620] | 128 | END MODULE traldf |
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