[3] | 1 | MODULE tradmp |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE tradmp *** |
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| 4 | !! Ocean physics: internal restoring trend on active tracers (T and S) |
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| 5 | !!====================================================================== |
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[1601] | 6 | !! History : OPA ! 1991-03 (O. Marti, G. Madec) Original code |
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| 7 | !! ! 1992-06 (M. Imbard) doctor norme |
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| 8 | !! ! 1996-01 (G. Madec) statement function for e3 |
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| 9 | !! ! 1997-05 (G. Madec) macro-tasked on jk-slab |
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| 10 | !! ! 1998-07 (M. Imbard, G. Madec) ORCA version |
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| 11 | !! 7.0 ! 2001-02 (M. Imbard) cofdis, Original code |
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| 12 | !! 8.1 ! 2001-02 (G. Madec, E. Durand) cleaning |
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| 13 | !! NEMO 1.0 ! 2002-08 (G. Madec, E. Durand) free form + modules |
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| 14 | !! 3.2 ! 2009-08 (G. Madec, C. Talandier) DOCTOR norm for namelist parameter |
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[2528] | 15 | !! 3.3 ! 2010-06 (C. Ethe, G. Madec) merge TRA-TRC |
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[3294] | 16 | !! 3.4 ! 2011-04 (G. Madec, C. Ethe) Merge of dtatem and dtasal + suppression of CPP keys |
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[503] | 17 | !!---------------------------------------------------------------------- |
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[3294] | 18 | |
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[3] | 19 | !!---------------------------------------------------------------------- |
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[2715] | 20 | !! tra_dmp_alloc : allocate tradmp arrays |
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[2528] | 21 | !! tra_dmp : update the tracer trend with the internal damping |
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| 22 | !! tra_dmp_init : initialization, namlist read, parameters control |
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[3] | 23 | !!---------------------------------------------------------------------- |
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[2528] | 24 | USE oce ! ocean: variables |
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| 25 | USE dom_oce ! ocean: domain variables |
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[4245] | 26 | USE c1d ! 1D vertical configuration |
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[4990] | 27 | USE trd_oce ! trends: ocean variables |
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| 28 | USE trdtra ! trends manager: tracers |
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[2528] | 29 | USE zdf_oce ! ocean: vertical physics |
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| 30 | USE phycst ! physical constants |
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[3294] | 31 | USE dtatsd ! data: temperature & salinity |
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[2528] | 32 | USE zdfmxl ! vertical physics: mixed layer depth |
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| 33 | USE in_out_manager ! I/O manager |
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| 34 | USE lib_mpp ! MPP library |
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| 35 | USE prtctl ! Print control |
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[3294] | 36 | USE wrk_nemo ! Memory allocation |
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| 37 | USE timing ! Timing |
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[5102] | 38 | USE iom |
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[3] | 39 | |
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| 40 | IMPLICIT NONE |
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| 41 | PRIVATE |
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| 42 | |
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[2528] | 43 | PUBLIC tra_dmp ! routine called by step.F90 |
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| 44 | PUBLIC tra_dmp_init ! routine called by opa.F90 |
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[3] | 45 | |
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[4147] | 46 | ! !!* Namelist namtra_dmp : T & S newtonian damping * |
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[5102] | 47 | ! nn_zdmp and cn_resto are public as they are used by C1D/dyndmp.F90 |
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[4247] | 48 | LOGICAL , PUBLIC :: ln_tradmp !: internal damping flag |
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| 49 | INTEGER , PUBLIC :: nn_zdmp ! = 0/1/2 flag for damping in the mixed layer |
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[5102] | 50 | CHARACTER(LEN=200) , PUBLIC :: cn_resto ! name of netcdf file containing restoration coefficient field |
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| 51 | ! |
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[3294] | 52 | |
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[5102] | 53 | |
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[2715] | 54 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: strdmp !: damping salinity trend (psu/s) |
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| 55 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: ttrdmp !: damping temperature trend (Celcius/s) |
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| 56 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: resto !: restoring coeff. on T and S (s-1) |
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[3] | 57 | |
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| 58 | !! * Substitutions |
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| 59 | # include "domzgr_substitute.h90" |
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| 60 | # include "vectopt_loop_substitute.h90" |
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| 61 | !!---------------------------------------------------------------------- |
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[2528] | 62 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[7054] | 63 | !! $Id$ |
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[2528] | 64 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[3] | 65 | !!---------------------------------------------------------------------- |
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| 66 | CONTAINS |
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| 67 | |
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[2715] | 68 | INTEGER FUNCTION tra_dmp_alloc() |
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| 69 | !!---------------------------------------------------------------------- |
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[3294] | 70 | !! *** FUNCTION tra_dmp_alloc *** |
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[2715] | 71 | !!---------------------------------------------------------------------- |
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[3294] | 72 | ALLOCATE( strdmp(jpi,jpj,jpk) , ttrdmp(jpi,jpj,jpk), resto(jpi,jpj,jpk), STAT= tra_dmp_alloc ) |
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[2715] | 73 | ! |
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| 74 | IF( lk_mpp ) CALL mpp_sum ( tra_dmp_alloc ) |
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| 75 | IF( tra_dmp_alloc > 0 ) CALL ctl_warn('tra_dmp_alloc: allocation of arrays failed') |
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[3294] | 76 | ! |
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[2715] | 77 | END FUNCTION tra_dmp_alloc |
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| 78 | |
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| 79 | |
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[3] | 80 | SUBROUTINE tra_dmp( kt ) |
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| 81 | !!---------------------------------------------------------------------- |
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| 82 | !! *** ROUTINE tra_dmp *** |
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| 83 | !! |
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| 84 | !! ** Purpose : Compute the tracer trend due to a newtonian damping |
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| 85 | !! of the tracer field towards given data field and add it to the |
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| 86 | !! general tracer trends. |
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| 87 | !! |
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| 88 | !! ** Method : Newtonian damping towards t_dta and s_dta computed |
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| 89 | !! and add to the general tracer trends: |
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| 90 | !! ta = ta + resto * (t_dta - tb) |
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| 91 | !! sa = sa + resto * (s_dta - sb) |
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| 92 | !! The trend is computed either throughout the water column |
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| 93 | !! (nlmdmp=0) or in area of weak vertical mixing (nlmdmp=1) or |
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| 94 | !! below the well mixed layer (nlmdmp=2) |
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| 95 | !! |
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[1601] | 96 | !! ** Action : - (ta,sa) tracer trends updated with the damping trend |
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[503] | 97 | !!---------------------------------------------------------------------- |
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[3294] | 98 | ! |
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[1601] | 99 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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[503] | 100 | !! |
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[2528] | 101 | INTEGER :: ji, jj, jk ! dummy loop indices |
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[3294] | 102 | REAL(wp) :: zta, zsa ! local scalars |
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| 103 | REAL(wp), POINTER, DIMENSION(:,:,:,:) :: zts_dta |
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[3] | 104 | !!---------------------------------------------------------------------- |
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[503] | 105 | ! |
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[3294] | 106 | IF( nn_timing == 1 ) CALL timing_start( 'tra_dmp') |
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| 107 | ! |
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| 108 | CALL wrk_alloc( jpi, jpj, jpk, jpts, zts_dta ) |
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[4990] | 109 | ! |
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[3294] | 110 | ! !== input T-S data at kt ==! |
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| 111 | CALL dta_tsd( kt, zts_dta ) ! read and interpolates T-S data at kt |
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| 112 | ! |
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[2528] | 113 | SELECT CASE ( nn_zdmp ) !== type of damping ==! |
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| 114 | ! |
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[1601] | 115 | CASE( 0 ) !== newtonian damping throughout the water column ==! |
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[3] | 116 | DO jk = 1, jpkm1 |
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| 117 | DO jj = 2, jpjm1 |
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| 118 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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[3294] | 119 | zta = resto(ji,jj,jk) * ( zts_dta(ji,jj,jk,jp_tem) - tsb(ji,jj,jk,jp_tem) ) |
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| 120 | zsa = resto(ji,jj,jk) * ( zts_dta(ji,jj,jk,jp_sal) - tsb(ji,jj,jk,jp_sal) ) |
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[2528] | 121 | tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta |
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| 122 | tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa |
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[3294] | 123 | strdmp(ji,jj,jk) = zsa ! save the trend (used in asmtrj) |
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| 124 | ttrdmp(ji,jj,jk) = zta |
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[3] | 125 | END DO |
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| 126 | END DO |
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| 127 | END DO |
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[503] | 128 | ! |
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[1601] | 129 | CASE ( 1 ) !== no damping in the turbocline (avt > 5 cm2/s) ==! |
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[3] | 130 | DO jk = 1, jpkm1 |
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| 131 | DO jj = 2, jpjm1 |
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| 132 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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[2528] | 133 | IF( avt(ji,jj,jk) <= 5.e-4_wp ) THEN |
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[3294] | 134 | zta = resto(ji,jj,jk) * ( zts_dta(ji,jj,jk,jp_tem) - tsb(ji,jj,jk,jp_tem) ) |
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| 135 | zsa = resto(ji,jj,jk) * ( zts_dta(ji,jj,jk,jp_sal) - tsb(ji,jj,jk,jp_sal) ) |
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[2528] | 136 | ELSE |
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| 137 | zta = 0._wp |
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| 138 | zsa = 0._wp |
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[3] | 139 | ENDIF |
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[2528] | 140 | tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta |
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| 141 | tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa |
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| 142 | strdmp(ji,jj,jk) = zsa ! save the salinity trend (used in asmtrj) |
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| 143 | ttrdmp(ji,jj,jk) = zta |
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[3] | 144 | END DO |
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| 145 | END DO |
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| 146 | END DO |
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[503] | 147 | ! |
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[1601] | 148 | CASE ( 2 ) !== no damping in the mixed layer ==! |
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[3] | 149 | DO jk = 1, jpkm1 |
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| 150 | DO jj = 2, jpjm1 |
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| 151 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 152 | IF( fsdept(ji,jj,jk) >= hmlp (ji,jj) ) THEN |
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[3294] | 153 | zta = resto(ji,jj,jk) * ( zts_dta(ji,jj,jk,jp_tem) - tsb(ji,jj,jk,jp_tem) ) |
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| 154 | zsa = resto(ji,jj,jk) * ( zts_dta(ji,jj,jk,jp_sal) - tsb(ji,jj,jk,jp_sal) ) |
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[2528] | 155 | ELSE |
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| 156 | zta = 0._wp |
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| 157 | zsa = 0._wp |
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[3] | 158 | ENDIF |
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[2528] | 159 | tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta |
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| 160 | tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa |
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| 161 | strdmp(ji,jj,jk) = zsa ! save the salinity trend (used in asmtrj) |
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| 162 | ttrdmp(ji,jj,jk) = zta |
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[3] | 163 | END DO |
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| 164 | END DO |
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| 165 | END DO |
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[503] | 166 | ! |
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[3] | 167 | END SELECT |
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[2528] | 168 | ! |
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[1601] | 169 | IF( l_trdtra ) THEN ! trend diagnostic |
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[4990] | 170 | CALL trd_tra( kt, 'TRA', jp_tem, jptra_dmp, ttrdmp ) |
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| 171 | CALL trd_tra( kt, 'TRA', jp_sal, jptra_dmp, strdmp ) |
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[216] | 172 | ENDIF |
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[1601] | 173 | ! ! Control print |
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[2528] | 174 | IF(ln_ctl) CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' dmp - Ta: ', mask1=tmask, & |
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| 175 | & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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[503] | 176 | ! |
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[3294] | 177 | CALL wrk_dealloc( jpi, jpj, jpk, jpts, zts_dta ) |
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| 178 | ! |
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| 179 | IF( nn_timing == 1 ) CALL timing_stop( 'tra_dmp') |
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| 180 | ! |
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[3] | 181 | END SUBROUTINE tra_dmp |
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| 182 | |
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| 183 | |
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| 184 | SUBROUTINE tra_dmp_init |
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| 185 | !!---------------------------------------------------------------------- |
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| 186 | !! *** ROUTINE tra_dmp_init *** |
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| 187 | !! |
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| 188 | !! ** Purpose : Initialization for the newtonian damping |
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| 189 | !! |
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[4245] | 190 | !! ** Method : read the namtra_dmp namelist and check the parameters |
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[3] | 191 | !!---------------------------------------------------------------------- |
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[5102] | 192 | NAMELIST/namtra_dmp/ ln_tradmp, nn_zdmp, cn_resto |
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| 193 | INTEGER :: ios ! Local integer for output status of namelist read |
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| 194 | INTEGER :: imask ! File handle |
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[4990] | 195 | !! |
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[541] | 196 | !!---------------------------------------------------------------------- |
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[4990] | 197 | ! |
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[5102] | 198 | REWIND( numnam_ref ) ! Namelist namtra_dmp in reference namelist : T & S relaxation |
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[4147] | 199 | READ ( numnam_ref, namtra_dmp, IOSTAT = ios, ERR = 901) |
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| 200 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtra_dmp in reference namelist', lwp ) |
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[4990] | 201 | ! |
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[5102] | 202 | REWIND( numnam_cfg ) ! Namelist namtra_dmp in configuration namelist : T & S relaxation |
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[4147] | 203 | READ ( numnam_cfg, namtra_dmp, IOSTAT = ios, ERR = 902 ) |
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| 204 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtra_dmp in configuration namelist', lwp ) |
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[4624] | 205 | IF(lwm) WRITE ( numond, namtra_dmp ) |
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[3] | 206 | |
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[5102] | 207 | IF(lwp) THEN !Namelist print |
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[3] | 208 | WRITE(numout,*) |
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[5102] | 209 | WRITE(numout,*) 'tra_dmp_init : T and S newtonian relaxation' |
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[3] | 210 | WRITE(numout,*) '~~~~~~~' |
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[5102] | 211 | WRITE(numout,*) ' Namelist namtra_dmp : set relaxation parameters' |
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| 212 | WRITE(numout,*) ' Apply relaxation or not ln_tradmp = ', ln_tradmp |
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| 213 | WRITE(numout,*) ' mixed layer damping option nn_zdmp = ', nn_zdmp |
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| 214 | WRITE(numout,*) ' Damping file name cn_resto = ', cn_resto |
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[3294] | 215 | WRITE(numout,*) |
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[3] | 216 | ENDIF |
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| 217 | |
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[5102] | 218 | IF( ln_tradmp) THEN |
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[3294] | 219 | ! |
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[5102] | 220 | !Allocate arrays |
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[3294] | 221 | IF( tra_dmp_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'tra_dmp_init: unable to allocate arrays' ) |
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[5102] | 222 | |
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| 223 | !Check values of nn_zdmp |
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| 224 | SELECT CASE (nn_zdmp) |
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| 225 | CASE ( 0 ) ; IF(lwp) WRITE(numout,*) ' tracer damping as specified by mask' |
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| 226 | CASE ( 1 ) ; IF(lwp) WRITE(numout,*) ' no tracer damping in the turbocline' |
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| 227 | CASE ( 2 ) ; IF(lwp) WRITE(numout,*) ' no tracer damping in the mixed layer' |
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[3294] | 228 | END SELECT |
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[5102] | 229 | |
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| 230 | !TG: Initialisation of dtatsd - Would it be better to have dmpdta routine |
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| 231 | !so can damp to something other than intitial conditions files? |
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[3294] | 232 | IF( .NOT.ln_tsd_tradmp ) THEN |
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| 233 | CALL ctl_warn( 'tra_dmp_init: read T-S data not initialized, we force ln_tsd_tradmp=T' ) |
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| 234 | CALL dta_tsd_init( ld_tradmp=ln_tradmp ) ! forces the initialisation of T-S data |
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| 235 | ENDIF |
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[5102] | 236 | |
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| 237 | !initialise arrays - Are these actually used anywhere else? |
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| 238 | strdmp(:,:,:) = 0._wp |
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[3294] | 239 | ttrdmp(:,:,:) = 0._wp |
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[3] | 240 | |
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[5102] | 241 | !Read in mask from file |
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| 242 | CALL iom_open ( cn_resto, imask) |
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| 243 | CALL iom_get ( imask, jpdom_autoglo, 'resto', resto) |
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| 244 | CALL iom_close( imask ) |
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| 245 | ENDIF |
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[3] | 246 | |
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[5102] | 247 | END SUBROUTINE tra_dmp_init |
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[3] | 248 | |
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| 249 | END MODULE tradmp |
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