[268] | 1 | MODULE trcrst |
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[335] | 2 | !!====================================================================== |
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[1801] | 3 | !! *** MODULE trcrst *** |
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| 4 | !! TOP : Manage the passive tracer restart |
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[335] | 5 | !!====================================================================== |
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[9863] | 6 | !! History : - ! 1991-03 () original code |
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| 7 | !! 1.0 ! 2005-03 (O. Aumont, A. El Moussaoui) F90 |
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| 8 | !! - ! 2005-10 (C. Ethe) print control |
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| 9 | !! 2.0 ! 2005-10 (C. Ethe, G. Madec) revised architecture |
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[274] | 10 | !!---------------------------------------------------------------------- |
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[945] | 11 | #if defined key_top |
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[335] | 12 | !!---------------------------------------------------------------------- |
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[945] | 13 | !! 'key_top' TOP models |
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| 14 | !!---------------------------------------------------------------------- |
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[9863] | 15 | |
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[1801] | 16 | !!---------------------------------------------------------------------- |
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[9863] | 17 | !! trc_rst : Restart for passive tracer |
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| 18 | !! trc_rst_opn : open restart file |
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| 19 | !! trc_rst_read : read restart file |
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| 20 | !! trc_rst_wri : write restart file |
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[945] | 21 | !!---------------------------------------------------------------------- |
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[9863] | 22 | USE oce_trc ! |
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| 23 | USE trc ! |
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| 24 | USE daymod ! |
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| 25 | USE iom ! |
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[6140] | 26 | |
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[335] | 27 | IMPLICIT NONE |
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| 28 | PRIVATE |
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[1801] | 29 | |
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[9863] | 30 | PUBLIC trc_rst_opn ! called by trcstp |
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| 31 | PUBLIC trc_rst_read ! called by trcini |
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| 32 | PUBLIC trc_rst_wri ! called by trcstp |
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| 33 | PUBLIC trc_rst_cal ! called by trcstp & trcini (and OFF/nemogcm) |
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[1801] | 34 | |
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[6140] | 35 | !!---------------------------------------------------------------------- |
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[9863] | 36 | !! NEMO/TOP 4.0 , NEMO Consortium (2018) |
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[6140] | 37 | !! $Id$ |
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[9598] | 38 | !! Software governed by the CeCILL licence (./LICENSE) |
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[6140] | 39 | !!---------------------------------------------------------------------- |
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[268] | 40 | CONTAINS |
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[335] | 41 | |
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[616] | 42 | SUBROUTINE trc_rst_opn( kt ) |
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| 43 | !!---------------------------------------------------------------------- |
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| 44 | !! *** trc_rst_opn *** |
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| 45 | !! |
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| 46 | !! ** purpose : output of sea-trc variable in a netcdf file |
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| 47 | !!---------------------------------------------------------------------- |
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| 48 | INTEGER, INTENT(in) :: kt ! number of iteration |
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| 49 | ! |
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| 50 | CHARACTER(LEN=20) :: clkt ! ocean time-step define as a character |
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| 51 | CHARACTER(LEN=50) :: clname ! trc output restart file name |
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[5341] | 52 | CHARACTER(LEN=256) :: clpath ! full path to ocean output restart file |
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[616] | 53 | !!---------------------------------------------------------------------- |
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| 54 | ! |
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[7646] | 55 | IF( l_offline ) THEN |
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[3294] | 56 | IF( kt == nittrc000 ) THEN |
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[2528] | 57 | lrst_trc = .FALSE. |
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[5341] | 58 | IF( ln_rst_list ) THEN |
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| 59 | nrst_lst = 1 |
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| 60 | nitrst = nstocklist( nrst_lst ) |
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| 61 | ELSE |
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| 62 | nitrst = nitend |
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| 63 | ENDIF |
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[2528] | 64 | ENDIF |
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| 65 | |
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[5341] | 66 | IF( .NOT. ln_rst_list .AND. MOD( kt - 1, nstock ) == 0 ) THEN |
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[3294] | 67 | ! we use kt - 1 and not kt - nittrc000 to keep the same periodicity from the beginning of the experiment |
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[2528] | 68 | nitrst = kt + nstock - 1 ! define the next value of nitrst for restart writing |
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| 69 | IF( nitrst > nitend ) nitrst = nitend ! make sure we write a restart at the end of the run |
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| 70 | ENDIF |
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| 71 | ELSE |
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[3294] | 72 | IF( kt == nittrc000 ) lrst_trc = .FALSE. |
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[1655] | 73 | ENDIF |
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| 74 | |
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[2528] | 75 | ! to get better performances with NetCDF format: |
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| 76 | ! we open and define the tracer restart file one tracer time step before writing the data (-> at nitrst - 2*nn_dttrc + 1) |
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| 77 | ! except if we write tracer restart files every tracer time step or if a tracer restart file was writen at nitend - 2*nn_dttrc + 1 |
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[3294] | 78 | IF( kt == nitrst - 2*nn_dttrc .OR. nstock == nn_dttrc .OR. ( kt == nitend - nn_dttrc .AND. .NOT. lrst_trc ) ) THEN |
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[616] | 79 | ! beware of the format used to write kt (default is i8.8, that should be large enough) |
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[945] | 80 | IF( nitrst > 1.0e9 ) THEN ; WRITE(clkt,* ) nitrst |
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| 81 | ELSE ; WRITE(clkt,'(i8.8)') nitrst |
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[616] | 82 | ENDIF |
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| 83 | ! create the file |
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| 84 | IF(lwp) WRITE(numout,*) |
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[1254] | 85 | clname = TRIM(cexper)//"_"//TRIM(ADJUSTL(clkt))//"_"//TRIM(cn_trcrst_out) |
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[5341] | 86 | clpath = TRIM(cn_trcrst_outdir) |
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| 87 | IF( clpath(LEN_TRIM(clpath):) /= '/' ) clpath = TRIM(clpath) // '/' |
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| 88 | IF(lwp) WRITE(numout,*) & |
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| 89 | ' open trc restart.output NetCDF file: ',TRIM(clpath)//clname |
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| 90 | CALL iom_open( TRIM(clpath)//TRIM(clname), numrtw, ldwrt = .TRUE., kiolib = jprstlib ) |
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[616] | 91 | lrst_trc = .TRUE. |
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| 92 | ENDIF |
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| 93 | ! |
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| 94 | END SUBROUTINE trc_rst_opn |
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| 95 | |
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[9863] | 96 | |
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[1801] | 97 | SUBROUTINE trc_rst_read |
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[945] | 98 | !!---------------------------------------------------------------------- |
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| 99 | !! *** trc_rst_opn *** |
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[335] | 100 | !! |
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[945] | 101 | !! ** purpose : read passive tracer fields in restart files |
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| 102 | !!---------------------------------------------------------------------- |
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[1801] | 103 | INTEGER :: jn |
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[1287] | 104 | |
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[945] | 105 | !!---------------------------------------------------------------------- |
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[3294] | 106 | ! |
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[945] | 107 | IF(lwp) WRITE(numout,*) |
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[3294] | 108 | IF(lwp) WRITE(numout,*) 'trc_rst_read : read data in the TOP restart file' |
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[945] | 109 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~' |
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[350] | 110 | |
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[945] | 111 | ! READ prognostic variables and computes diagnostic variable |
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[494] | 112 | DO jn = 1, jptra |
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[1801] | 113 | CALL iom_get( numrtr, jpdom_autoglo, 'TRN'//ctrcnm(jn), trn(:,:,:,jn) ) |
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[335] | 114 | END DO |
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[1077] | 115 | |
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[1287] | 116 | DO jn = 1, jptra |
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[1801] | 117 | CALL iom_get( numrtr, jpdom_autoglo, 'TRB'//ctrcnm(jn), trb(:,:,:,jn) ) |
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[1077] | 118 | END DO |
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[945] | 119 | ! |
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| 120 | END SUBROUTINE trc_rst_read |
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[494] | 121 | |
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[945] | 122 | SUBROUTINE trc_rst_wri( kt ) |
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| 123 | !!---------------------------------------------------------------------- |
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| 124 | !! *** trc_rst_wri *** |
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[335] | 125 | !! |
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[945] | 126 | !! ** purpose : write passive tracer fields in restart files |
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| 127 | !!---------------------------------------------------------------------- |
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| 128 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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[335] | 129 | !! |
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[1287] | 130 | INTEGER :: jn |
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| 131 | REAL(wp) :: zarak0 |
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[945] | 132 | !!---------------------------------------------------------------------- |
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[3294] | 133 | ! |
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[9923] | 134 | CALL iom_rstput( kt, nitrst, numrtw, 'rdttrc1', rn_Dt_trc ) ! passive tracer time step |
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[1801] | 135 | ! prognostic variables |
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| 136 | ! -------------------- |
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[1100] | 137 | DO jn = 1, jptra |
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| 138 | CALL iom_rstput( kt, nitrst, numrtw, 'TRN'//ctrcnm(jn), trn(:,:,:,jn) ) |
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| 139 | END DO |
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[1077] | 140 | |
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[1100] | 141 | DO jn = 1, jptra |
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| 142 | CALL iom_rstput( kt, nitrst, numrtw, 'TRB'//ctrcnm(jn), trb(:,:,:,jn) ) |
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| 143 | END DO |
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[3680] | 144 | ! |
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[1287] | 145 | IF( kt == nitrst ) THEN |
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[1119] | 146 | CALL trc_rst_stat ! statistics |
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[1100] | 147 | CALL iom_close( numrtw ) ! close the restart file (only at last time step) |
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[4990] | 148 | #if ! defined key_trdmxl_trc |
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[1100] | 149 | lrst_trc = .FALSE. |
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[1177] | 150 | #endif |
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[7646] | 151 | IF( l_offline .AND. ln_rst_list ) THEN |
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[5341] | 152 | nrst_lst = nrst_lst + 1 |
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| 153 | nitrst = nstocklist( nrst_lst ) |
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| 154 | ENDIF |
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[1287] | 155 | ENDIF |
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[945] | 156 | ! |
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[1801] | 157 | END SUBROUTINE trc_rst_wri |
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[268] | 158 | |
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[1801] | 159 | |
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[1287] | 160 | SUBROUTINE trc_rst_cal( kt, cdrw ) |
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| 161 | !!--------------------------------------------------------------------- |
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| 162 | !! *** ROUTINE trc_rst_cal *** |
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| 163 | !! |
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| 164 | !! ** Purpose : Read or write calendar in restart file: |
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| 165 | !! |
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| 166 | !! WRITE(READ) mode: |
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| 167 | !! kt : number of time step since the begining of the experiment at the |
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| 168 | !! end of the current(previous) run |
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| 169 | !! adatrj(0) : number of elapsed days since the begining of the experiment at the |
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| 170 | !! end of the current(previous) run (REAL -> keep fractions of day) |
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| 171 | !! ndastp : date at the end of the current(previous) run (coded as yyyymmdd integer) |
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| 172 | !! |
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| 173 | !! According to namelist parameter nrstdt, |
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[3294] | 174 | !! nn_rsttr = 0 no control on the date (nittrc000 is arbitrary). |
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| 175 | !! nn_rsttr = 1 we verify that nittrc000 is equal to the last |
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[1287] | 176 | !! time step of previous run + 1. |
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| 177 | !! In both those options, the exact duration of the experiment |
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| 178 | !! since the beginning (cumulated duration of all previous restart runs) |
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[9923] | 179 | !! is not stored in the restart and is assumed to be (nittrc000-1)*rn_Dt. |
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[1287] | 180 | !! This is valid is the time step has remained constant. |
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| 181 | !! |
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[2528] | 182 | !! nn_rsttr = 2 the duration of the experiment in days (adatrj) |
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[1287] | 183 | !! has been stored in the restart file. |
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| 184 | !!---------------------------------------------------------------------- |
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| 185 | INTEGER , INTENT(in) :: kt ! ocean time-step |
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| 186 | CHARACTER(len=*), INTENT(in) :: cdrw ! "READ"/"WRITE" flag |
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| 187 | ! |
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[3294] | 188 | INTEGER :: jlibalt = jprstlib |
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| 189 | LOGICAL :: llok |
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[9923] | 190 | REAL(wp) :: zkt, zndastp, zdayfrac, ksecs, ktime |
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[9556] | 191 | INTEGER :: ihour, iminute |
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[1287] | 192 | |
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| 193 | ! Time domain : restart |
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| 194 | ! --------------------- |
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| 195 | |
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| 196 | IF( TRIM(cdrw) == 'READ' ) THEN |
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[3294] | 197 | |
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| 198 | IF(lwp) WRITE(numout,*) |
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| 199 | IF(lwp) WRITE(numout,*) 'trc_rst_cal : read the TOP restart file for calendar' |
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| 200 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~' |
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| 201 | |
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[5513] | 202 | IF( ln_rsttr ) THEN |
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| 203 | CALL iom_open( TRIM(cn_trcrst_indir)//'/'//cn_trcrst_in, numrtr, kiolib = jlibalt ) |
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| 204 | CALL iom_get ( numrtr, 'kt', zkt ) ! last time-step of previous run |
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[3294] | 205 | |
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[5513] | 206 | IF(lwp) THEN |
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| 207 | WRITE(numout,*) ' *** Info read in restart : ' |
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| 208 | WRITE(numout,*) ' previous time-step : ', NINT( zkt ) |
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| 209 | WRITE(numout,*) ' *** restart option' |
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| 210 | SELECT CASE ( nn_rsttr ) |
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| 211 | CASE ( 0 ) ; WRITE(numout,*) ' nn_rsttr = 0 : no control of nittrc000' |
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| 212 | CASE ( 1 ) ; WRITE(numout,*) ' nn_rsttr = 1 : no control the date at nittrc000 (use ndate0 read in the namelist)' |
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| 213 | CASE ( 2 ) ; WRITE(numout,*) ' nn_rsttr = 2 : calendar parameters read in restart' |
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| 214 | END SELECT |
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| 215 | WRITE(numout,*) |
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| 216 | ENDIF |
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| 217 | ! Control of date |
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| 218 | IF( nittrc000 - NINT( zkt ) /= nn_dttrc .AND. nn_rsttr /= 0 ) & |
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| 219 | & CALL ctl_stop( ' ===>>>> : problem with nittrc000 for the restart', & |
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| 220 | & ' verify the restart file or rerun with nn_rsttr = 0 (namelist)' ) |
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[1287] | 221 | ENDIF |
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[5513] | 222 | ! |
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[7646] | 223 | IF( l_offline ) THEN |
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[5504] | 224 | ! ! set the date in offline mode |
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| 225 | IF( ln_rsttr .AND. nn_rsttr == 2 ) THEN |
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[9556] | 226 | CALL iom_get( numrtr, 'ndastp', zndastp ) |
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[2528] | 227 | ndastp = NINT( zndastp ) |
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| 228 | CALL iom_get( numrtr, 'adatrj', adatrj ) |
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[9556] | 229 | CALL iom_get( numrtr, 'ntime' , ktime ) |
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| 230 | nn_time0=INT(ktime) |
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| 231 | ! calculate start time in hours and minutes |
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| 232 | zdayfrac=adatrj-INT(adatrj) |
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| 233 | ksecs = NINT(zdayfrac*86400) ! Nearest second to catch rounding errors in adatrj |
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| 234 | ihour = INT(ksecs/3600) |
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| 235 | iminute = ksecs/60-ihour*60 |
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| 236 | |
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| 237 | ! Add to nn_time0 |
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| 238 | nhour = nn_time0 / 100 |
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| 239 | nminute = ( nn_time0 - nhour * 100 ) |
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| 240 | nminute=nminute+iminute |
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| 241 | |
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| 242 | IF( nminute >= 60 ) THEN |
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| 243 | nminute=nminute-60 |
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| 244 | nhour=nhour+1 |
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| 245 | ENDIF |
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| 246 | nhour=nhour+ihour |
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| 247 | IF( nhour >= 24 ) THEN |
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| 248 | nhour=nhour-24 |
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| 249 | adatrj=adatrj+1 |
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| 250 | ENDIF |
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| 251 | nn_time0 = nhour * 100 + nminute |
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| 252 | adatrj = INT(adatrj) ! adatrj set to integer as nn_time0 updated |
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[5504] | 253 | ELSE |
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[9556] | 254 | ! parameters corresponding to nit000 - 1 (as we start the step |
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| 255 | ! loop with a call to day) |
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| 256 | ndastp = ndate0 ! ndate0 read in the namelist in dom_nam |
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| 257 | nhour = nn_time0 / 100 |
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| 258 | nminute = ( nn_time0 - nhour * 100 ) |
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| 259 | IF( nhour*3600+nminute*60-ndt05 .lt. 0 ) ndastp=ndastp-1 ! Start hour is specified in the namelist (default 0) |
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[9923] | 260 | adatrj = ( REAL( nit000-1, wp ) * rn_Dt ) / rday |
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[2528] | 261 | ! note this is wrong if time step has changed during run |
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| 262 | ENDIF |
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[9556] | 263 | IF( ABS(adatrj - REAL(NINT(adatrj),wp)) < 0.1 / rday ) adatrj = REAL(NINT(adatrj),wp) ! avoid truncation error |
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[2528] | 264 | ! |
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| 265 | IF(lwp) THEN |
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| 266 | WRITE(numout,*) ' *** Info used values : ' |
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| 267 | WRITE(numout,*) ' date ndastp : ', ndastp |
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| 268 | WRITE(numout,*) ' number of elapsed days since the begining of run : ', adatrj |
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[9556] | 269 | WRITE(numout,*) ' nn_time0 : ', nn_time0 |
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[2528] | 270 | WRITE(numout,*) |
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| 271 | ENDIF |
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| 272 | ! |
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[9863] | 273 | IF( ln_rsttr ) THEN ; l_1st_euler = .FALSE. ! OFF restart: no Euler 1st time-step |
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| 274 | ELSE ; l_1st_euler = .TRUE. ! OFF cold start: Euler 1st time-step is used |
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[5504] | 275 | ENDIF |
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| 276 | ! |
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[2528] | 277 | CALL day_init ! compute calendar |
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| 278 | ! |
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[1287] | 279 | ENDIF |
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| 280 | ! |
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| 281 | ELSEIF( TRIM(cdrw) == 'WRITE' ) THEN |
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| 282 | ! |
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| 283 | IF( kt == nitrst ) THEN |
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| 284 | IF(lwp) WRITE(numout,*) |
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| 285 | IF(lwp) WRITE(numout,*) 'trc_wri : write the TOP restart file (NetCDF) at it= ', kt, ' date= ', ndastp |
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| 286 | IF(lwp) WRITE(numout,*) '~~~~~~~' |
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| 287 | ENDIF |
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| 288 | CALL iom_rstput( kt, nitrst, numrtw, 'kt' , REAL( kt , wp) ) ! time-step |
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| 289 | CALL iom_rstput( kt, nitrst, numrtw, 'ndastp' , REAL( ndastp, wp) ) ! date |
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| 290 | CALL iom_rstput( kt, nitrst, numrtw, 'adatrj' , adatrj ) ! number of elapsed days since |
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| 291 | ! ! the begining of the run [s] |
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[9556] | 292 | CALL iom_rstput( kt, nitrst, numrtw, 'ntime' , REAL( nn_time0, wp)) ! time |
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[1287] | 293 | ENDIF |
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| 294 | |
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| 295 | END SUBROUTINE trc_rst_cal |
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| 296 | |
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[1119] | 297 | |
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| 298 | SUBROUTINE trc_rst_stat |
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| 299 | !!---------------------------------------------------------------------- |
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| 300 | !! *** trc_rst_stat *** |
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| 301 | !! |
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| 302 | !! ** purpose : Compute tracers statistics |
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| 303 | !!---------------------------------------------------------------------- |
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[7753] | 304 | INTEGER :: jk, jn |
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[3294] | 305 | REAL(wp) :: ztraf, zmin, zmax, zmean, zdrift |
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[5385] | 306 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zvol |
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[1119] | 307 | !!---------------------------------------------------------------------- |
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| 308 | |
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| 309 | IF( lwp ) THEN |
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| 310 | WRITE(numout,*) |
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| 311 | WRITE(numout,*) ' ----TRACER STAT---- ' |
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| 312 | WRITE(numout,*) |
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| 313 | ENDIF |
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[3294] | 314 | ! |
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[5385] | 315 | DO jk = 1, jpk |
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[7753] | 316 | zvol(:,:,jk) = e1e2t(:,:) * e3t_a(:,:,jk) * tmask(:,:,jk) |
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[5385] | 317 | END DO |
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| 318 | ! |
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[1119] | 319 | DO jn = 1, jptra |
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[5385] | 320 | ztraf = glob_sum( trn(:,:,:,jn) * zvol(:,:,:) ) |
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[3294] | 321 | zmin = MINVAL( trn(:,:,:,jn), mask= ((tmask*SPREAD(tmask_i,DIM=3,NCOPIES=jpk).NE.0.)) ) |
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| 322 | zmax = MAXVAL( trn(:,:,:,jn), mask= ((tmask*SPREAD(tmask_i,DIM=3,NCOPIES=jpk).NE.0.)) ) |
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[1119] | 323 | IF( lk_mpp ) THEN |
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[3294] | 324 | CALL mpp_min( zmin ) ! min over the global domain |
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| 325 | CALL mpp_max( zmax ) ! max over the global domain |
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[1119] | 326 | END IF |
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[3294] | 327 | zmean = ztraf / areatot |
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| 328 | zdrift = ( ( ztraf - trai(jn) ) / ( trai(jn) + 1.e-12 ) ) * 100._wp |
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| 329 | IF(lwp) WRITE(numout,9000) jn, TRIM( ctrcnm(jn) ), zmean, zmin, zmax, zdrift |
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[1119] | 330 | END DO |
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[7055] | 331 | IF(lwp) WRITE(numout,*) |
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[3294] | 332 | 9000 FORMAT(' tracer nb :',i2,' name :',a10,' mean :',e18.10,' min :',e18.10, & |
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| 333 | & ' max :',e18.10,' drift :',e18.10, ' %') |
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| 334 | ! |
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[1119] | 335 | END SUBROUTINE trc_rst_stat |
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| 336 | |
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[268] | 337 | #else |
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[945] | 338 | !!---------------------------------------------------------------------- |
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| 339 | !! Dummy module : No passive tracer |
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| 340 | !!---------------------------------------------------------------------- |
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[335] | 341 | CONTAINS |
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[945] | 342 | SUBROUTINE trc_rst_read ! Empty routines |
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[616] | 343 | END SUBROUTINE trc_rst_read |
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[945] | 344 | SUBROUTINE trc_rst_wri( kt ) |
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[335] | 345 | INTEGER, INTENT ( in ) :: kt |
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[616] | 346 | WRITE(*,*) 'trc_rst_wri: You should not have seen this print! error?', kt |
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[945] | 347 | END SUBROUTINE trc_rst_wri |
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[268] | 348 | #endif |
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[945] | 349 | |
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| 350 | !!====================================================================== |
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[335] | 351 | END MODULE trcrst |
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