[3] | 1 | MODULE stpctl |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE stpctl *** |
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| 4 | !! Ocean run control : gross check of the ocean time stepping |
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| 5 | !!============================================================================== |
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| 6 | |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! stp_ctl : Control the run |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! * Modules used |
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| 11 | USE oce ! ocean dynamics and tracers variables |
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| 12 | USE dom_oce ! ocean space and time domain variables |
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| 13 | USE sol_oce ! ocean space and time domain variables |
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| 14 | USE in_out_manager ! I/O manager |
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| 15 | USE solisl ! ??? |
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| 16 | USE diawri ! ocean output file |
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| 17 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 18 | USE lib_mpp ! distributed memory computing |
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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 | !! * Accessibility |
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| 24 | PUBLIC stp_ctl ! routine called by step.F90 |
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| 25 | !!---------------------------------------------------------------------- |
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| 26 | |
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| 27 | CONTAINS |
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| 28 | |
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| 29 | SUBROUTINE stp_ctl( kt, kindic ) |
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| 30 | !!---------------------------------------------------------------------- |
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| 31 | !! *** ROUTINE stp_ctl *** |
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| 32 | !! |
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| 33 | !! ** Purpose : Control the run |
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| 34 | !! |
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| 35 | !! ** Method : - Save the time step in numstp |
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| 36 | !! - Print it each 50 time steps |
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| 37 | !! - Print solver statistics in numsol |
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| 38 | !! - Stop the run IF problem for the solver ( indec < 0 ) |
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| 39 | !! |
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| 40 | !! History : |
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| 41 | !! ! 91-03 () |
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| 42 | !! ! 91-11 (G. Madec) |
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| 43 | !! ! 92-06 (M. Imbard) |
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| 44 | !! ! 97-06 (A.M. Treguier) |
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| 45 | !! 8.5 ! 02-06 (G. Madec) F90: Free form and module |
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| 46 | !!---------------------------------------------------------------------- |
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| 47 | !! * Arguments |
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| 48 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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| 49 | INTEGER, INTENT( inout ) :: kindic ! indicator of solver convergence |
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| 50 | |
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| 51 | !! * local declarations |
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| 52 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 53 | INTEGER :: ii, ij, ik ! temporary integers |
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| 54 | REAL(wp) :: zumax, zsmin ! temporary scalars |
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| 55 | INTEGER, DIMENSION(3) :: ilocu ! |
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| 56 | INTEGER, DIMENSION(2) :: ilocs ! |
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| 57 | !!---------------------------------------------------------------------- |
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| 58 | !! OPA 8.5, LODYC-IPSL (2002) |
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| 59 | !!---------------------------------------------------------------------- |
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| 60 | |
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| 61 | IF( kt == nit000 .AND. lwp ) THEN |
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| 62 | WRITE(numout,*) |
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| 63 | WRITE(numout,*) 'stp_ctl : time-stepping control' |
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| 64 | WRITE(numout,*) '~~~' |
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| 65 | ! open time.step file |
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| 66 | CALL ctlopn( numstp, 'time.step', 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', 1, numout, lwp, 1 ) |
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| 67 | ENDIF |
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| 68 | |
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| 69 | ! save the current time step in numstp |
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| 70 | ! ------------------------------------ |
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| 71 | IF(lwp) WRITE(numstp,9100) kt |
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| 72 | IF(lwp) REWIND(numstp) |
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| 73 | 9100 FORMAT(1x, i8) |
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| 74 | |
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| 75 | |
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| 76 | ! elliptic solver statistics |
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| 77 | ! ----------------------------- |
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| 78 | ! Solver |
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| 79 | IF(lwp) WRITE(numsol,9200) kt, niter, res, SQRT(epsr)/eps |
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| 80 | 9200 FORMAT(' it :', i8, ' niter :', i4, ' res :',e20.10,' b :',e20.10) |
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| 81 | |
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| 82 | ! Islands (if exist) |
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| 83 | IF( l_isl ) CALL isl_stp_ctl( kt, kindic ) |
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| 84 | |
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| 85 | |
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| 86 | ! Output in numwso and numwvo IF kindic<0 |
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| 87 | ! --------------------------------------- |
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| 88 | ! (i.e. problem for the solver) |
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| 89 | IF( kindic < 0 ) THEN |
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| 90 | IF(lwp) THEN |
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| 91 | WRITE(numout,*) ' stpctl: the elliptic solver DO not converge or explode' |
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| 92 | WRITE(numout,*) ' ====== ' |
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| 93 | WRITE(numout,9200) kt, niter, res, sqrt(epsr)/eps |
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| 94 | WRITE(numout,*) |
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| 95 | WRITE(numout,*) ' stpctl: output of last fields in numwso' |
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| 96 | WRITE(numout,*) ' numwvo' |
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| 97 | WRITE(numout,*) ' ====== *******************************' |
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| 98 | ENDIF |
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| 99 | CALL dia_wri( kt, kindic ) |
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| 100 | ENDIF |
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| 101 | |
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| 102 | ! Test maximum of velocity (zonal only) |
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| 103 | ! ------------------------ |
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| 104 | !! zumax = MAXVAL( ABS( un(:,:,:) ) ) ! slower than the following loop on NEC SX5 |
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| 105 | zumax = 0.0 |
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| 106 | DO jk = 1, jpk |
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| 107 | DO jj = 1, jpj |
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| 108 | DO ji = 1, jpi |
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| 109 | zumax = MAX(zumax,ABS(un(ji,jj,jk))) |
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| 110 | END DO |
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| 111 | END DO |
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| 112 | END DO |
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[15] | 113 | IF( lk_mpp ) CALL mpp_max( zumax ) ! max over the global domain |
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| 114 | |
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[3] | 115 | IF( MOD( kt, nwrite ) == 1 ) THEN |
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| 116 | IF(lwp) WRITE(numout,*) ' ==>> time-step= ',kt,' abs(U) max: ', zumax |
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| 117 | ENDIF |
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| 118 | IF( zumax > 20.) THEN |
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| 119 | ilocu = MAXLOC( ABS( un(:,:,:) ) ) |
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| 120 | ii = ilocu(1) + nimpp - 1 |
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| 121 | ij = ilocu(2) + njmpp - 1 |
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| 122 | ik = ilocu(3) |
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[15] | 123 | IF( lk_mpp ) THEN |
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| 124 | CALL mpp_isl( ii ) |
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| 125 | CALL mpp_isl( ij ) |
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| 126 | CALL mpp_isl( ik ) |
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| 127 | ENDIF |
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[3] | 128 | IF(lwp) THEN |
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| 129 | WRITE(numout,cform_err) |
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| 130 | WRITE(numout,*) ' stpctl: the zonal velocity is larger than 20 m/s' |
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| 131 | WRITE(numout,*) ' ====== ' |
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| 132 | WRITE(numout,9400) kt, zumax, ii, ij, ik |
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| 133 | WRITE(numout,*) |
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| 134 | WRITE(numout,*) ' output of last fields in numwso' |
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| 135 | ENDIF |
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| 136 | kindic = -3 |
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| 137 | CALL dia_wri( kt, kindic ) |
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| 138 | ENDIF |
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| 139 | 9400 FORMAT (' kt=',i6,' max abs(U): ',1pg11.4,', i j k: ',3i4) |
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| 140 | |
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| 141 | |
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| 142 | ! Test minimum of salinity |
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| 143 | ! ------------------------ |
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| 144 | !! zsmin = MINVAL( sn(:,:,1), mask = tmask(:,:,1) == 1.e0 ) |
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| 145 | ! slower than the following loop on NEC SX5 |
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| 146 | zsmin = 100.0 |
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| 147 | DO jj = 2, jpjm1 |
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| 148 | DO ji = 1, jpi |
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| 149 | IF( tmask(ji,jj,1) == 1) zsmin = MIN(zsmin,sn(ji,jj,1)) |
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| 150 | END DO |
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| 151 | END DO |
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[15] | 152 | IF( lk_mpp ) CALL mpp_min( zsmin ) ! min over the global domain |
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| 153 | |
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[3] | 154 | IF( MOD( kt, nwrite ) == 1 ) THEN |
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| 155 | IF(lwp) WRITE(numout,*) ' ==>> time-step= ',kt,' SSS min:', zsmin |
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| 156 | ENDIF |
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| 157 | IF( zsmin < 0.) THEN |
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| 158 | ilocs = MINLOC( sn(:,:,1), mask = tmask(:,:,1) == 1.e0 ) |
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| 159 | ii = ilocs(1) + nimpp - 1 |
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| 160 | ij = ilocs(2) + njmpp - 1 |
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[15] | 161 | IF( lk_mpp ) CALL mpp_isl( ii ) |
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| 162 | IF( lk_mpp ) CALL mpp_isl( ij ) |
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| 163 | |
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[3] | 164 | IF(lwp) THEN |
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| 165 | WRITE(numout,cform_err) |
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| 166 | WRITE(numout,*) 'stp_ctl : NEGATIVE sea surface salinity' |
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| 167 | WRITE(numout,*) '======= ' |
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| 168 | WRITE(numout,9500) kt, zsmin, ii, ij |
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| 169 | WRITE(numout,*) |
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| 170 | WRITE(numout,*) ' output of last fields in numwso' |
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| 171 | ENDIF |
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| 172 | IF( kindic < 0 ) THEN |
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| 173 | IF(lwp) WRITE(numout,*) ' stpctl diabort done. We wont do it again ' |
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| 174 | ELSE |
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| 175 | kindic = -3 |
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| 176 | CALL dia_wri(kt,kindic) |
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| 177 | ENDIF |
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| 178 | ENDIF |
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| 179 | 9500 FORMAT (' kt=',i6,' min SSS: ',1pg11.4,', i j: ',2i4) |
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| 180 | |
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| 181 | END SUBROUTINE stp_ctl |
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| 182 | |
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| 183 | !!====================================================================== |
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| 184 | END MODULE stpctl |
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