| 1 | MODULE trczdf |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE trczdf *** |
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| 4 | !! Ocean Passive tracers : vertical diffusive trends |
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| 5 | !!===================================================================== |
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| 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 | !! 4.0 ! 2017-04 (G. Madec) remove the explicit case |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | #if defined key_top |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! 'key_top' TOP models |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! trc_zdf : update the tracer trend with the vertical diffusion |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE trc ! ocean passive tracers variables |
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| 17 | USE oce_trc ! ocean dynamics and active tracers |
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| 18 | USE trd_oce ! trends: ocean variables |
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| 19 | USE trazdf_exp ! vertical diffusion: explicit (tra_zdf_exp routine) |
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| 20 | USE trazdf_imp ! vertical diffusion: implicit (tra_zdf_imp routine) |
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| 21 | USE trcldf ! passive tracers: lateral diffusion |
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| 22 | USE trdtra ! trends manager: tracers |
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| 23 | USE prtctl_trc ! Print control |
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| 24 | |
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| 25 | IMPLICIT NONE |
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| 26 | PRIVATE |
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| 27 | |
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| 28 | PUBLIC trc_zdf ! called by step.F90 |
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| 29 | |
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| 30 | !!---------------------------------------------------------------------- |
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| 31 | !! NEMO/TOP 3.7 , NEMO Consortium (2015) |
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| 32 | !! $Id$ |
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| 33 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 34 | !!---------------------------------------------------------------------- |
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| 35 | CONTAINS |
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| 36 | |
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| 37 | SUBROUTINE trc_zdf( kt ) |
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| 38 | !!---------------------------------------------------------------------- |
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| 39 | !! *** ROUTINE trc_zdf *** |
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| 40 | !! |
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| 41 | !! ** Purpose : compute the vertical ocean tracer physics using |
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| 42 | !! an implicit time-stepping scheme. |
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| 43 | !!--------------------------------------------------------------------- |
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| 44 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 45 | ! |
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| 46 | INTEGER :: jk, jn |
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| 47 | CHARACTER (len=22) :: charout |
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| 48 | REAL(wp), DIMENSION(jpi,jpj,jpk,jptra) :: ztrtrd ! 4D workspace |
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| 49 | !!--------------------------------------------------------------------- |
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| 50 | ! |
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| 51 | IF( nn_timing == 1 ) CALL timing_start('trc_zdf') |
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| 52 | ! |
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| 53 | IF( l_trdtrc ) ztrtrd(:,:,:,:) = tra(:,:,:,:) |
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| 54 | ! |
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| 55 | CALL tra_zdf_imp( kt, nittrc000, 'TRC', r2dttrc, trb, tra, jptra ) ! implicit scheme |
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| 56 | ! |
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| 57 | IF( l_trdtrc ) THEN ! save the vertical diffusive trends for further diagnostics |
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| 58 | DO jn = 1, jptra |
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| 59 | DO jk = 1, jpkm1 |
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| 60 | ztrtrd(:,:,jk,jn) = ( ( tra(:,:,jk,jn) - trb(:,:,jk,jn) ) / r2dttrc ) - ztrtrd(:,:,jk,jn) |
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| 61 | END DO |
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| 62 | CALL trd_tra( kt, 'TRC', jn, jptra_zdf, ztrtrd(:,:,:,jn) ) |
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| 63 | END DO |
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| 64 | ENDIF |
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| 65 | ! ! print mean trends (used for debugging) |
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| 66 | IF( ln_ctl ) THEN |
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| 67 | WRITE(charout, FMT="('zdf ')") |
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| 68 | CALL prt_ctl_trc_info(charout) |
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| 69 | CALL prt_ctl_trc( tab4d=tra, mask=tmask, clinfo=ctrcnm, clinfo2='trd' ) |
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| 70 | END IF |
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| 71 | ! |
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| 72 | IF( nn_timing == 1 ) CALL timing_stop('trc_zdf') |
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| 73 | ! |
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| 74 | END SUBROUTINE trc_zdf |
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| 75 | |
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| 76 | #else |
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| 77 | !!---------------------------------------------------------------------- |
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| 78 | !! Default option Empty module |
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| 79 | !!---------------------------------------------------------------------- |
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| 80 | CONTAINS |
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| 81 | SUBROUTINE trc_zdf( kt ) |
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| 82 | INTEGER, INTENT(in) :: kt |
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| 83 | WRITE(*,*) 'trc_zdf: You should not have seen this print! error?', kt |
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| 84 | END SUBROUTINE trc_zdf |
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| 85 | #endif |
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| 86 | !!============================================================================== |
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| 87 | END MODULE trczdf |
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