[420] | 1 | MODULE limdmp |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE limdmp *** |
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| 4 | !! Ice model : restoring Ice thickness and Fraction leads |
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| 5 | !!====================================================================== |
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[477] | 6 | #if defined key_ice_lim && defined key_tradmp |
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[420] | 7 | !!---------------------------------------------------------------------- |
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| 8 | !! 'key_ice_lim' : LIM sea-ice model |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! lim_dmp : ice model damping |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! * Modules used |
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| 13 | USE in_out_manager ! I/O manager |
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| 14 | USE ice |
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| 15 | USE ice_oce |
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| 16 | USE tradmp |
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| 17 | USE dom_oce |
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| 18 | USE oce |
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| 19 | USE daymod ! calendar |
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| 20 | |
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| 21 | IMPLICIT NONE |
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| 22 | PRIVATE |
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| 23 | |
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| 24 | !! * Routine accessibility |
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| 25 | PUBLIC lim_dmp ! called by ice_step |
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| 26 | |
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| 27 | !! * Shared module variables |
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| 28 | CHARACTER (len=38) :: & |
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| 29 | cl_icedata = 'ice_damping_ATL4.nc' |
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| 30 | INTEGER :: & |
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| 31 | nice1 , & ! first record used |
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| 32 | nice2 ! second record used |
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| 33 | |
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| 34 | REAL(wp), DIMENSION(jpi,jpj,2) :: & |
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| 35 | hicif_data , & ! ice thickness data at two consecutive times |
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| 36 | frld_data ! fraction lead data at two consecutive times |
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| 37 | |
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| 38 | REAL(wp), DIMENSION(jpi,jpj) :: & |
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| 39 | hicif_dta , & ! ice thickness at a given time |
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| 40 | frld_dta ! fraction lead at a given time |
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| 41 | |
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| 42 | !! * Substitution |
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| 43 | # include "vectopt_loop_substitute.h90" |
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| 44 | !!---------------------------------------------------------------------- |
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| 45 | !! LIM 2.0 , UCL-LOCEAN-IPSL (2005) |
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| 46 | !! $Header$ |
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| 47 | !! This software is governed by the CeCILL licence see !modipsl/doc/NEMO_CeCILL.txt |
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| 48 | !!---------------------------------------------------------------------- |
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| 49 | |
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| 50 | CONTAINS |
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| 51 | |
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| 52 | SUBROUTINE lim_dmp(kt) |
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| 53 | !!------------------------------------------------------------------- |
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| 54 | !! *** ROUTINE lim_dmp *** |
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| 55 | !! |
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| 56 | !! ** purpose : ice model damping : restoring ice thickness and |
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| 57 | !! fraction leads |
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| 58 | !! |
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| 59 | !! ** method : the key_tradmp must be used to compute resto(:,:) coef. |
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| 60 | !! |
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| 61 | !! ** action : |
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| 62 | !! |
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| 63 | !! History : |
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| 64 | !! |
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| 65 | !! 2.0 ! 04-04 (S. Theetten) Original |
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| 66 | !!--------------------------------------------------------------------- |
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| 67 | !! * Arguments |
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| 68 | INTEGER, INTENT( in ) :: kt ! ocean time-step |
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| 69 | |
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| 70 | !! * Local Variables |
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| 71 | INTEGER :: ji, jj ! dummy loop indices |
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| 72 | !!--------------------------------------------------------------------- |
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| 73 | |
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| 74 | CALL dta_lim(kt) |
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| 75 | |
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| 76 | DO jj = 2, jpjm1 |
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| 77 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 78 | |
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| 79 | hicif(ji,jj) = hicif(ji,jj) - rdt_ice * resto(ji,jj,1) * ( hicif(ji,jj) - hicif_dta(ji,jj)) |
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| 80 | frld(ji,jj) = frld(ji,jj) - rdt_ice * resto(ji,jj,1) * ( frld(ji,jj) - frld_dta(ji,jj)) |
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| 81 | |
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| 82 | ENDDO |
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| 83 | ENDDO |
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| 84 | |
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| 85 | END SUBROUTINE lim_dmp |
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| 86 | |
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| 87 | |
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| 88 | |
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| 89 | SUBROUTINE dta_lim( kt ) |
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| 90 | !!---------------------------------------------------------------------- |
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| 91 | !! *** ROUTINE dta_lim *** |
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| 92 | !! |
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| 93 | !! ** Purpose : Reads monthly ice thickness and fraction lead data |
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| 94 | !! |
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| 95 | !! ** Method : Read on unit numicedt the interpolated ice variable |
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| 96 | !! onto the model grid. |
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| 97 | !! Data begin at january. |
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| 98 | !! The value is centered at the middle of month. |
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| 99 | !! In the opa model, kt=1 agree with january 1. |
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| 100 | !! At each time step, a linear interpolation is applied between |
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| 101 | !! two monthly values. |
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| 102 | !! |
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| 103 | !! |
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| 104 | !! ** Action : define hicif_dta and frld_dta arrays at time-step kt |
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| 105 | !! |
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| 106 | !! History : |
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| 107 | !! 2.0 ! 04-04 (S. Theetten) Original |
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| 108 | !!---------------------------------------------------------------------- |
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| 109 | !! * Modules used |
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| 110 | USE ioipsl |
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| 111 | |
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| 112 | !! * Arguments |
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| 113 | INTEGER, INTENT( in ) :: kt ! ocean time-step |
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| 114 | |
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| 115 | !! * Local declarations |
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| 116 | INTEGER, PARAMETER :: jpmois = 12 ! number of month |
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| 117 | |
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| 118 | INTEGER :: & |
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| 119 | imois, iman, itime , & ! temporary integers |
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| 120 | i15, ipi, ipj, ipk ! " " |
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| 121 | |
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| 122 | INTEGER, DIMENSION(jpmois) :: istep |
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| 123 | REAL(wp) :: zxy, zdate0, zdt |
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| 124 | REAL(wp), DIMENSION(jpi,jpj) :: zlon,zlat |
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| 125 | REAL(wp), DIMENSION(jpk) :: zlev |
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| 126 | !!---------------------------------------------------------------------- |
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| 127 | |
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| 128 | ! 0. Initialization |
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| 129 | ! ----------------- |
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| 130 | iman = jpmois |
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| 131 | i15 = nday / 16 |
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| 132 | imois = nmonth + i15 - 1 |
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| 133 | IF( imois == 0 ) imois = iman |
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| 134 | |
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| 135 | itime = jpmois |
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| 136 | ipi=jpiglo |
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| 137 | ipj=jpjglo |
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| 138 | ipk=1 |
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| 139 | zdt=rdt |
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| 140 | |
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| 141 | ! 1. First call kt=nit000 |
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| 142 | ! ----------------------- |
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| 143 | |
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| 144 | IF( kt == nit000 ) THEN |
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| 145 | nice1 = 0 |
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| 146 | IF(lwp) WRITE(numout,*) |
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| 147 | IF(lwp) WRITE(numout,*) 'dtalim : Ice thickness and lead fraction monthly fields' |
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| 148 | IF(lwp) WRITE(numout,*) '~~~~~~' |
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| 149 | IF(lwp) WRITE(numout,*) ' NetCDF FORMAT' |
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| 150 | IF(lwp) WRITE(numout,*) |
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| 151 | |
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| 152 | ! open file |
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| 153 | |
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| 154 | CALL flinopen( TRIM(cl_icedata), mig(1), nlci , mjg(1), nlcj, .FALSE., & |
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| 155 | & ipi, ipj, ipk, zlon, zlat, zlev, itime, istep, zdate0, zdt, numice_dmp ) |
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| 156 | |
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| 157 | ! title, dimensions and tests |
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| 158 | IF( itime /= jpmois ) THEN |
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| 159 | IF(lwp) THEN |
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| 160 | WRITE(numout,*) |
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| 161 | WRITE(numout,*) 'problem with time coordinates' |
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| 162 | WRITE(numout,*) ' itime ',itime,' jpmois ',jpmois |
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| 163 | ENDIF |
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| 164 | STOP 'dta_lim' |
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| 165 | ENDIF |
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| 166 | IF( ipi /= jpidta .OR. ipj /= jpjdta ) THEN |
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| 167 | IF(lwp) THEN |
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| 168 | WRITE(numout,*) |
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| 169 | WRITE(numout,*) 'problem with dimensions' |
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| 170 | WRITE(numout,*) ' ipi ',ipi,' jpidta ',jpidta |
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| 171 | WRITE(numout,*) ' ipj ',ipj,' jpjdta ',jpjdta |
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| 172 | ENDIF |
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| 173 | STOP 'dta_lim' |
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| 174 | ENDIF |
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| 175 | IF(lwp) WRITE(numout,*) itime,istep,zdate0,zdt,numice_dmp |
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| 176 | |
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| 177 | ENDIF |
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| 178 | |
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| 179 | |
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| 180 | ! 2. Read monthly file |
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| 181 | ! ------------------- |
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| 182 | |
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| 183 | IF( ( kt == nit000 ) .OR. imois /= nice1 ) THEN |
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| 184 | |
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| 185 | ! Calendar computation |
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| 186 | |
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| 187 | nice1 = imois ! first file record used |
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| 188 | nice2 = nice1 + 1 ! last file record used |
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| 189 | nice1 = MOD( nice1, iman ) |
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| 190 | IF( nice1 == 0 ) nice1 = iman |
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| 191 | nice2 = MOD( nice2, iman ) |
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| 192 | IF( nice2 == 0 ) nice2 = iman |
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| 193 | IF(lwp) WRITE(numout,*) 'first record file used nice1 ', nice1 |
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| 194 | IF(lwp) WRITE(numout,*) 'last record file used nice2 ', nice2 |
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| 195 | |
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| 196 | ! Read monthly ice thickness Levitus |
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| 197 | |
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[477] | 198 | CALL flinget( numice_dmp, 'iicethic', jpidta, jpjdta, jpk, & |
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[420] | 199 | & jpmois, nice1, nice1, mig(1), nlci, mjg(1), nlcj, hicif_data(1:nlci,1:nlcj,1) ) |
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[477] | 200 | CALL flinget( numice_dmp, 'iicethic', jpidta, jpjdta, jpk, & |
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[420] | 201 | & jpmois, nice2, nice2, mig(1), nlci, mjg(1), nlcj, hicif_data(1:nlci,1:nlcj,2) ) |
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| 202 | |
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| 203 | IF(lwp) WRITE(numout,*) |
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| 204 | IF(lwp) WRITE(numout,*) ' read ice thickness ok' |
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| 205 | IF(lwp) WRITE(numout,*) |
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| 206 | |
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| 207 | ! Read monthly ice thickness Levitus |
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| 208 | |
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| 209 | CALL flinget( numice_dmp, 'ileadfra', jpidta, jpjdta, jpk, & |
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| 210 | & jpmois, nice1, nice1, mig(1), nlci, mjg(1), nlcj, frld_data(1:nlci,1:nlcj,1) ) |
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| 211 | CALL flinget( numice_dmp, 'ileadfra', jpidta, jpjdta, jpk, & |
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| 212 | & jpmois, nice2, nice2, mig(1), nlci, mjg(1), nlcj, frld_data(1:nlci,1:nlcj,2) ) |
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| 213 | |
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| 214 | ! The fraction lead read in the file is in fact the |
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| 215 | ! ice concentration which is 1 - the fraction lead |
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| 216 | frld_data = 1 - frld_data |
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| 217 | |
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| 218 | IF(lwp) WRITE(numout,*) |
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| 219 | IF(lwp) WRITE(numout,*) ' read fraction lead ok' |
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| 220 | IF(lwp) WRITE(numout,*) |
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| 221 | |
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| 222 | |
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| 223 | IF(lwp) THEN |
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| 224 | WRITE(numout,*) ' Ice thickness month ', nice1,' and ', nice2 |
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| 225 | WRITE(numout,*) |
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| 226 | WRITE(numout,*) ' Ice thickness month = ', nice1 |
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| 227 | CALL prihre( hicif_data(1,1,1), jpi, jpj, 1, jpi, 20, 1, jpj, 20, 1., numout ) |
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| 228 | WRITE(numout,*) |
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| 229 | WRITE(numout,*) ' Fraction lead months ', nice1,' and ', nice2 |
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| 230 | WRITE(numout,*) |
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| 231 | WRITE(numout,*) ' Fraction lead month = ', nice1 |
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| 232 | CALL prihre( frld_data(1,1,1), jpi, jpj, 1, jpi, 20, 1, jpj, 20, 1., numout ) |
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| 233 | ENDIF |
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| 234 | |
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| 235 | ! 2. At every time step compute ice thickness and fraction lead data |
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| 236 | ! ------------------------------------------------------------------ |
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| 237 | |
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| 238 | zxy = FLOAT( nday + 15 - 30 * i15 ) / 30. |
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| 239 | hicif_dta(:,:) = (1.-zxy) * hicif_data(:,:,1) + zxy * hicif_data(:,:,2) |
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| 240 | frld_dta(:,:) = (1.-zxy) * frld_data(:,:,1) + zxy * frld_data(:,:,2) |
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| 241 | |
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| 242 | ENDIF |
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| 243 | |
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| 244 | |
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| 245 | END SUBROUTINE dta_lim |
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| 246 | |
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| 247 | #else |
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| 248 | !!---------------------------------------------------------------------- |
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| 249 | !! Default option Empty Module No ice damping |
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| 250 | !!---------------------------------------------------------------------- |
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| 251 | CONTAINS |
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| 252 | SUBROUTINE lim_dmp(kt) ! Dummy routine |
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| 253 | WRITE(*,*) 'lim_dmp: You should not see this print! error? ', kt |
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| 254 | END SUBROUTINE lim_dmp |
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| 255 | #endif |
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| 256 | |
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| 257 | !!====================================================================== |
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| 258 | |
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| 259 | END MODULE limdmp |
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