[881] | 1 | MODULE limdmp_2 |
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[420] | 2 | !!====================================================================== |
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[881] | 3 | !! *** MODULE limdmp_2 *** |
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[420] | 4 | !! Ice model : restoring Ice thickness and Fraction leads |
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| 5 | !!====================================================================== |
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[508] | 6 | !! History : 2.0 ! 04-04 (S. Theetten) Original code |
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[420] | 7 | !!---------------------------------------------------------------------- |
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[881] | 8 | #if defined key_lim2 && defined key_tradmp |
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[420] | 9 | !!---------------------------------------------------------------------- |
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[881] | 10 | !! 'key_lim2' AND LIM 2.0 sea-ice model |
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[508] | 11 | !! 'key_tradmp' Damping |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !!---------------------------------------------------------------------- |
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[881] | 14 | !! lim_dmp_2 : ice model damping |
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[420] | 15 | !!---------------------------------------------------------------------- |
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| 16 | USE in_out_manager ! I/O manager |
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[508] | 17 | USE phycst ! physical constants |
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[881] | 18 | USE ice_2 |
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[420] | 19 | USE ice_oce |
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| 20 | USE tradmp |
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| 21 | USE dom_oce |
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| 22 | USE oce |
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| 23 | USE daymod ! calendar |
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[508] | 24 | USE iom |
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[420] | 25 | |
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| 26 | IMPLICIT NONE |
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| 27 | PRIVATE |
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| 28 | |
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[881] | 29 | PUBLIC lim_dmp_2 ! called by ice_step_2 |
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[420] | 30 | |
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[508] | 31 | INTEGER :: nice1, nice2, & ! first and second record used |
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| 32 | & inumice_dmp ! logical unit for ice variables (damping) |
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| 33 | REAL(wp), DIMENSION(jpi,jpj) :: hicif_dta , & ! ice thickness at a given time |
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| 34 | & frld_dta ! fraction lead at a given time |
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| 35 | REAL(wp), DIMENSION(jpi,jpj,2) :: 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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[420] | 37 | |
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| 38 | !! * Substitution |
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| 39 | # include "vectopt_loop_substitute.h90" |
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| 40 | !!---------------------------------------------------------------------- |
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[508] | 41 | !! LIM 2.0 , UCL-LOCEAN-IPSL (2006) |
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[699] | 42 | !! $Id$ |
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[508] | 43 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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[420] | 44 | !!---------------------------------------------------------------------- |
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| 45 | |
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| 46 | CONTAINS |
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| 47 | |
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[881] | 48 | SUBROUTINE lim_dmp_2(kt) |
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[420] | 49 | !!------------------------------------------------------------------- |
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[881] | 50 | !! *** ROUTINE lim_dmp_2 *** |
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[420] | 51 | !! |
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| 52 | !! ** purpose : ice model damping : restoring ice thickness and |
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| 53 | !! fraction leads |
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| 54 | !! |
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| 55 | !! ** method : the key_tradmp must be used to compute resto(:,:) coef. |
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| 56 | !!--------------------------------------------------------------------- |
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[508] | 57 | INTEGER, INTENT(in) :: kt ! ocean time-step |
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| 58 | ! |
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| 59 | INTEGER :: ji, jj ! dummy loop indices |
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[420] | 60 | !!--------------------------------------------------------------------- |
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[508] | 61 | ! |
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[881] | 62 | CALL dta_lim_2( kt ) |
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[420] | 63 | |
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| 64 | DO jj = 2, jpjm1 |
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| 65 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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[508] | 66 | hicif(ji,jj) = hicif(ji,jj) - rdt_ice * resto(ji,jj,1) * ( hicif(ji,jj) - hicif_dta(ji,jj) ) |
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| 67 | frld(ji,jj) = frld (ji,jj) - rdt_ice * resto(ji,jj,1) * ( frld(ji,jj) - frld_dta (ji,jj) ) |
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| 68 | END DO |
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| 69 | END DO |
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| 70 | ! |
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[881] | 71 | END SUBROUTINE lim_dmp_2 |
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[420] | 72 | |
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| 73 | |
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[881] | 74 | SUBROUTINE dta_lim_2( kt ) |
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[420] | 75 | !!---------------------------------------------------------------------- |
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[881] | 76 | !! *** ROUTINE dta_lim_2 *** |
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[420] | 77 | !! |
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| 78 | !! ** Purpose : Reads monthly ice thickness and fraction lead data |
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| 79 | !! |
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| 80 | !! ** Method : Read on unit numicedt the interpolated ice variable |
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| 81 | !! onto the model grid. |
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| 82 | !! Data begin at january. |
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| 83 | !! The value is centered at the middle of month. |
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| 84 | !! In the opa model, kt=1 agree with january 1. |
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| 85 | !! At each time step, a linear interpolation is applied between |
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| 86 | !! two monthly values. |
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| 87 | !! |
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| 88 | !! ** Action : define hicif_dta and frld_dta arrays at time-step kt |
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| 89 | !!---------------------------------------------------------------------- |
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[508] | 90 | INTEGER, INTENT(in) :: kt ! ocean time-step |
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| 91 | ! |
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| 92 | INTEGER :: imois, iman, i15 ! temporary integers |
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| 93 | REAL(wp) :: zxy |
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[420] | 94 | !!---------------------------------------------------------------------- |
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| 95 | |
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| 96 | ! 0. Initialization |
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| 97 | ! ----------------- |
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[508] | 98 | iman = INT( raamo ) |
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| 99 | !!! better but change the results i15 = INT( 2*FLOAT( nday ) / ( FLOAT( nobis(nmonth) ) + 0.5 ) ) |
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[420] | 100 | i15 = nday / 16 |
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| 101 | imois = nmonth + i15 - 1 |
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[508] | 102 | IF( imois == 0 ) imois = iman |
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| 103 | |
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| 104 | ! 1. First call kt=nit000: Initialization and Open |
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[420] | 105 | ! ----------------------- |
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| 106 | IF( kt == nit000 ) THEN |
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| 107 | nice1 = 0 |
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| 108 | IF(lwp) WRITE(numout,*) |
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| 109 | IF(lwp) WRITE(numout,*) 'dtalim : Ice thickness and lead fraction monthly fields' |
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| 110 | IF(lwp) WRITE(numout,*) '~~~~~~' |
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| 111 | IF(lwp) WRITE(numout,*) ' NetCDF FORMAT' |
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| 112 | IF(lwp) WRITE(numout,*) |
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| 113 | ! open file |
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[508] | 114 | CALL iom_open( 'ice_damping_ATL4.nc', inumice_dmp ) |
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[420] | 115 | ENDIF |
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| 116 | |
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| 117 | |
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| 118 | ! 2. Read monthly file |
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[508] | 119 | ! -------------------- |
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[420] | 120 | IF( ( kt == nit000 ) .OR. imois /= nice1 ) THEN |
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[508] | 121 | ! |
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[420] | 122 | ! Calendar computation |
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| 123 | nice1 = imois ! first file record used |
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| 124 | nice2 = nice1 + 1 ! last file record used |
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| 125 | nice1 = MOD( nice1, iman ) |
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[508] | 126 | nice2 = MOD( nice2, iman ) |
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[420] | 127 | IF( nice1 == 0 ) nice1 = iman |
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| 128 | IF( nice2 == 0 ) nice2 = iman |
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| 129 | IF(lwp) WRITE(numout,*) 'first record file used nice1 ', nice1 |
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| 130 | IF(lwp) WRITE(numout,*) 'last record file used nice2 ', nice2 |
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| 131 | |
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| 132 | ! Read monthly ice thickness Levitus |
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[508] | 133 | CALL iom_get( inumice_dmp, jpdom_data, 'iicethic', hicif_data(:,:,1), nice1 ) |
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| 134 | CALL iom_get( inumice_dmp, jpdom_data, 'iicethic', hicif_data(:,:,2), nice2 ) |
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[420] | 135 | |
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| 136 | ! Read monthly ice thickness Levitus |
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[508] | 137 | CALL iom_get( inumice_dmp, jpdom_data, 'ileadfra', frld_data(:,:,1), nice1 ) |
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| 138 | CALL iom_get( inumice_dmp, jpdom_data, 'ileadfra', frld_data(:,:,2), nice2 ) |
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[420] | 139 | |
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| 140 | ! The fraction lead read in the file is in fact the |
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| 141 | ! ice concentration which is 1 - the fraction lead |
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| 142 | frld_data = 1 - frld_data |
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| 143 | |
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| 144 | IF(lwp) THEN |
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[508] | 145 | WRITE(numout,*) |
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[420] | 146 | WRITE(numout,*) ' Ice thickness month ', nice1,' and ', nice2 |
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| 147 | WRITE(numout,*) |
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| 148 | WRITE(numout,*) ' Ice thickness month = ', nice1 |
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| 149 | CALL prihre( hicif_data(1,1,1), jpi, jpj, 1, jpi, 20, 1, jpj, 20, 1., numout ) |
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| 150 | WRITE(numout,*) |
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| 151 | WRITE(numout,*) ' Fraction lead months ', nice1,' and ', nice2 |
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| 152 | WRITE(numout,*) |
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| 153 | WRITE(numout,*) ' Fraction lead month = ', nice1 |
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| 154 | CALL prihre( frld_data(1,1,1), jpi, jpj, 1, jpi, 20, 1, jpj, 20, 1., numout ) |
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| 155 | ENDIF |
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| 156 | |
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[674] | 157 | CALL FLUSH(numout) |
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| 158 | |
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[420] | 159 | ENDIF |
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[674] | 160 | |
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| 161 | ! 3. At every time step compute ice thickness and fraction lead data |
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| 162 | ! ------------------------------------------------------------------ |
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| 163 | zxy = FLOAT( nday + 15 - 30 * i15 ) / 30. |
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| 164 | hicif_dta(:,:) = (1.-zxy) * hicif_data(:,:,1) + zxy * hicif_data(:,:,2) |
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| 165 | frld_dta (:,:) = (1.-zxy) * frld_data (:,:,1) + zxy * frld_data (:,:,2) |
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| 166 | |
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[508] | 167 | IF( kt == nitend ) CALL iom_close( inumice_dmp ) |
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| 168 | ! |
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[881] | 169 | END SUBROUTINE dta_lim_2 |
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[420] | 170 | |
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| 171 | #else |
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| 172 | !!---------------------------------------------------------------------- |
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| 173 | !! Default option Empty Module No ice damping |
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| 174 | !!---------------------------------------------------------------------- |
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| 175 | CONTAINS |
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[881] | 176 | SUBROUTINE lim_dmp_2( kt ) ! Dummy routine |
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| 177 | WRITE(*,*) 'lim_dmp_2: You should not see this print! error? ', kt |
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| 178 | END SUBROUTINE lim_dmp_2 |
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[420] | 179 | #endif |
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| 180 | |
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| 181 | !!====================================================================== |
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[881] | 182 | END MODULE limdmp_2 |
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