[1252] | 1 | MODULE trcini_c14b |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE trcini_c14b *** |
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| 4 | !! TOP : initialisation of the C14 bomb tracer |
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| 5 | !!====================================================================== |
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[2715] | 6 | !! History : 1.0 ! 2005-10 (Z. Lachkar) Original code |
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| 7 | !! 2.0 ! 2007-12 (C. Ethe) |
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[1252] | 8 | !!---------------------------------------------------------------------- |
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| 9 | #if defined key_c14b |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | !! 'key_c14b' C14 bomb tracer |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! trc_ini_c14b : C14 model initialisation |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | USE oce_trc ! Ocean variables |
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| 16 | USE par_trc ! TOP parameters |
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| 17 | USE trc ! TOP variables |
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| 18 | USE trcsms_c14b ! C14 sms trends |
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| 19 | |
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| 20 | IMPLICIT NONE |
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| 21 | PRIVATE |
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| 22 | |
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| 23 | PUBLIC trc_ini_c14b ! called by trcini.F90 module |
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| 24 | |
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[2715] | 25 | ! ! With respect to data file !! |
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| 26 | INTEGER :: jpybeg = 1765 ! starting year for C14 |
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| 27 | INTEGER :: jpyend = 2002 ! ending year for C14 |
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| 28 | INTEGER :: nrec ! number of year in CO2 Concentrations file |
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| 29 | INTEGER :: nmaxrec |
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| 30 | INTEGER :: inum1, inum2 ! unit number |
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[1252] | 31 | |
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[2715] | 32 | REAL(wp) :: ys40 = -40. ! 40 degrees south |
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| 33 | REAL(wp) :: ys20 = -20. ! 20 degrees south |
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| 34 | REAL(wp) :: yn20 = 20. ! 20 degrees north |
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| 35 | REAL(wp) :: yn40 = 40. ! 40 degrees north |
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[1252] | 36 | |
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[2715] | 37 | !!---------------------------------------------------------------------- |
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[2528] | 38 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
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[6163] | 39 | !! $Id$ |
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[2715] | 40 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[1252] | 41 | !!---------------------------------------------------------------------- |
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| 42 | CONTAINS |
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| 43 | |
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| 44 | SUBROUTINE trc_ini_c14b |
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| 45 | !!------------------------------------------------------------------- |
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| 46 | !! *** trc_ini_c14b *** |
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| 47 | !! |
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| 48 | !! ** Purpose : initialization for C14 model |
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| 49 | !! |
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| 50 | !!---------------------------------------------------------------------- |
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| 51 | INTEGER :: ji, jj, jl, jm |
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| 52 | REAL(wp) :: zyear |
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| 53 | !!---------------------------------------------------------------------- |
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| 54 | |
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[2715] | 55 | ! ! Allocate C14b arrays |
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| 56 | IF( trc_sms_c14b_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'trc_ini_c14b : unable to allocate C14b arrays' ) |
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[2528] | 57 | |
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[2715] | 58 | CALL trc_ctl_c14b ! Control consitency |
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| 59 | |
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[2528] | 60 | IF(lwp) WRITE(numout,*) '' |
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| 61 | IF(lwp) WRITE(numout,*) ' trc_ini_c14b: initialisation of Bomb C14 chemical model' |
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[1252] | 62 | IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~' |
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| 63 | |
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| 64 | |
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| 65 | ! Initialization of boundaries conditions |
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| 66 | ! --------------------------------------- |
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[2715] | 67 | qtr_c14(:,:) = 0._wp |
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[1252] | 68 | |
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| 69 | ! Initialization of qint in case of no restart |
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| 70 | !---------------------------------------------- |
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[1542] | 71 | IF( .NOT. ln_rsttr ) THEN |
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[1252] | 72 | IF(lwp) THEN |
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| 73 | WRITE(numout,*) |
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| 74 | WRITE(numout,*) 'Initialization de qint ; No restart : qint equal zero ' |
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| 75 | ENDIF |
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[2715] | 76 | trn (:,:,:,jpc14) = 0._wp |
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| 77 | qint_c14(:,: ) = 0._wp |
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[1252] | 78 | ENDIF |
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| 79 | |
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| 80 | |
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| 81 | ! Read CO2 atmospheric concentrations file... |
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| 82 | ! read CO2 data from year jpybeg to year jpyend |
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| 83 | !------------------------------------------------ |
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| 84 | |
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| 85 | nrec = ( jpyend - jpybeg + 1 ) ! number of year in CO2 Concentrations file |
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| 86 | nmaxrec = 2 * nrec |
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| 87 | |
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| 88 | IF(lwp) WRITE(numout,*) 'Read CO2 atmospheric concentrations file ' |
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| 89 | |
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[1581] | 90 | CALL ctl_opn( inum1, 'splco2.dat', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE. ) |
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[1252] | 91 | REWIND(inum1) |
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| 92 | |
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| 93 | DO jm = 1, 5 ! Skip over 1st six descriptor lines |
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| 94 | READ(inum1,'(1x)') |
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| 95 | END DO |
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| 96 | |
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| 97 | ! get CO2 data |
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| 98 | DO jm = 1, nmaxrec |
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| 99 | READ(inum1, *) zyear, spco2(jm) |
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| 100 | IF (lwp) WRITE(numout, '(f7.1,f9.4)') zyear, spco2(jm) |
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| 101 | END DO |
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| 102 | WRITE(numout,*) |
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| 103 | CLOSE(inum1) |
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| 104 | |
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| 105 | IF (lwp) WRITE(numout,*) 'Read C-14 atmospheric concentrations file ' |
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| 106 | |
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[1581] | 107 | CALL ctl_opn( inum2, 'atmc14.dat', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, numout, .FALSE. ) |
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[1252] | 108 | REWIND(inum2) |
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| 109 | |
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| 110 | ! Skip over 1st descriptor line |
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| 111 | READ(inum2, '(1x)') |
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| 112 | |
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| 113 | ! READ FILE |
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| 114 | DO jm = 1, nrec |
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| 115 | READ(inum2,*) zyear, bomb(jm,1), bomb(jm,2), bomb(jm,3) |
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| 116 | IF (lwp) WRITE(numout, '(f7.1, 3f9.4)') zyear, bomb(jm,1), bomb(jm,2), bomb(jm,3) |
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| 117 | END DO |
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| 118 | CLOSE(inum2) |
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| 119 | |
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| 120 | ! Conversion unit : Now atm units are in real C-14 [per mil] |
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| 121 | ! C-14(Orr) = C-14(per mil)/10.0 |
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| 122 | DO jm = 1, nrec |
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| 123 | bomb(jm,1) = ( bomb(jm,1 ) + 17.40 ) * 0.1 |
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| 124 | bomb(jm,2) = ( bomb(jm,2 ) + 10.40 ) * 0.1 |
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| 125 | bomb(jm,3) = ( bomb(jm,3 ) + 14.65 ) * 0.1 |
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| 126 | END DO |
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| 127 | |
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| 128 | ! Linear interpolation of the C-14 source fonction |
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| 129 | ! in linear latitude band (20N,40N) and (20S,40S) |
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| 130 | !------------------------------------------------------ |
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| 131 | DO jj = 1 , jpj |
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| 132 | DO ji = 1 , jpi |
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| 133 | IF( gphit(ji,jj) >= yn40 ) THEN |
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| 134 | fareaz(ji,jj,1) = 0. |
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| 135 | fareaz(ji,jj,2) = 0. |
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| 136 | fareaz(ji,jj,3) = 1. |
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| 137 | ELSE IF( gphit(ji,jj ) <= ys40) THEN |
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| 138 | fareaz(ji,jj,1) = 1. |
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| 139 | fareaz(ji,jj,2) = 0. |
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| 140 | fareaz(ji,jj,3) = 0. |
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| 141 | ELSE IF( gphit(ji,jj) >= yn20 ) THEN |
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| 142 | fareaz(ji,jj,1) = 0. |
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| 143 | fareaz(ji,jj,2) = 2. * ( 1. - gphit(ji,jj) / yn40 ) |
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| 144 | fareaz(ji,jj,3) = 2. * gphit(ji,jj) / yn40 - 1. |
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| 145 | ELSE IF( gphit(ji,jj) <= ys20 ) THEN |
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| 146 | fareaz(ji,jj,1) = 2. * gphit(ji,jj) / ys40 - 1. |
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| 147 | fareaz(ji,jj,2) = 2. * ( 1. - gphit(ji,jj) / ys40 ) |
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| 148 | fareaz(ji,jj,3) = 0. |
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| 149 | ELSE |
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| 150 | fareaz(ji,jj,1) = 0. |
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| 151 | fareaz(ji,jj,2) = 1. |
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| 152 | fareaz(ji,jj,3) = 0. |
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| 153 | ENDIF |
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[2715] | 154 | END DO |
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| 155 | END DO |
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[1252] | 156 | ! |
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| 157 | IF(lwp) WRITE(numout,*) 'Initialization of C14 bomb tracer done' |
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| 158 | IF(lwp) WRITE(numout,*) ' ' |
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[2715] | 159 | ! |
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| 160 | END SUBROUTINE trc_ini_c14b |
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[1252] | 161 | |
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[2715] | 162 | |
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[2528] | 163 | SUBROUTINE trc_ctl_c14b |
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| 164 | !!---------------------------------------------------------------------- |
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| 165 | !! *** ROUTINE trc_ctl_c14b *** |
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| 166 | !! |
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| 167 | !! ** Purpose : control the cpp options, namelist and files |
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| 168 | !!---------------------------------------------------------------------- |
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| 169 | |
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| 170 | IF(lwp) THEN |
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| 171 | WRITE(numout,*) ' C14 bomb Model ' |
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| 172 | WRITE(numout,*) ' ' |
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| 173 | ENDIF |
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| 174 | |
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| 175 | ! Check number of tracers |
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| 176 | ! ----------------------- |
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[2715] | 177 | IF( jp_c14b > 1) CALL ctl_stop( ' Change jp_c14b to be equal 1 in par_c14b.F90' ) |
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[2528] | 178 | |
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| 179 | ! Check tracer names |
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| 180 | ! ------------------ |
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[2715] | 181 | IF( ctrcnm(jpc14) /= 'C14B' ) THEN |
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| 182 | ctrcnm(jpc14) = 'C14B' |
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[3294] | 183 | ctrcln(jpc14) = 'Bomb C14 concentration' |
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[2528] | 184 | ENDIF |
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| 185 | |
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| 186 | IF(lwp) THEN |
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| 187 | CALL ctl_warn( ' we force tracer names' ) |
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[3294] | 188 | WRITE(numout,*) ' tracer nb: ',jpc14,' name = ',ctrcnm(jpc14), ctrcln(jpc14) |
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[2528] | 189 | WRITE(numout,*) ' ' |
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| 190 | ENDIF |
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| 191 | |
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| 192 | ! Check tracer units |
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| 193 | ! ------------------ |
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| 194 | IF( ctrcun(jpc14) /= 'ration' ) THEN |
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[2715] | 195 | ctrcun(jpc14) = 'ration' |
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[2528] | 196 | IF(lwp) THEN |
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| 197 | CALL ctl_warn( ' we force tracer unit' ) |
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| 198 | WRITE(numout,*) ' tracer ',ctrcnm(jpc14), 'UNIT= ',ctrcun(jpc14) |
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| 199 | WRITE(numout,*) ' ' |
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| 200 | ENDIF |
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| 201 | ENDIF |
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| 202 | ! |
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| 203 | END SUBROUTINE trc_ctl_c14b |
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[2715] | 204 | |
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[1252] | 205 | #else |
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| 206 | !!---------------------------------------------------------------------- |
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| 207 | !! Dummy module No C14 bomb tracer |
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| 208 | !!---------------------------------------------------------------------- |
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| 209 | CONTAINS |
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| 210 | SUBROUTINE trc_ini_c14b ! Empty routine |
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| 211 | END SUBROUTINE trc_ini_c14b |
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| 212 | #endif |
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| 213 | |
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| 214 | !!====================================================================== |
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| 215 | END MODULE trcini_c14b |
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